2020 Site Characterization Report by cityofindepmo

Blue Valley Coal Combustion Residuals Impoundment Site Characterization Report Blue Valley Power Plant, Independence Power and Light Prepared for Independence Power and Light April 2020

Blue Valley Coal Combustion Residuals Impoundment Site Characterization Report Blue Valley Power Plant, Independence Power and Light Prepared for Independence Power and Light January 2020

May 2020

1001 Diamond Ridge, Suite 1100 Jefferson City, MO 65109 Phone: 573.638,5000 Fax: 573.638.5001

Blue Valley Coal Combustion Residuals Impoundment Site Characterization Report May 2020

Contents List of Tables ......................................................................................................................................................................................... iii List of Figures ....................................................................................................................................................................................... iii List of Appendices ........................................................................................................................................................................... iii 1.0

Executive Summary ............................................................................................................................................................. 1

1.1

Synopsis .............................................................................................................................................................................. 1

1.2

Background ....................................................................................................................................................................... 1

1.3

Physical Setting ................................................................................................................................................................ 2

1.4

Site Characterization...................................................................................................................................................... 2

1.5

Groundwater Flow Model Design ............................................................................................................................ 3

1.6

Investigation Results...................................................................................................................................................... 3

1.7

Conclusions ....................................................................................................................................................................... 3

2.0

Introduction ........................................................................................................................................................................... 5

2.1

Purpose ............................................................................................................................................................................... 5

2.2

Deviations from the Work Plan ................................................................................................................................. 6

3.0

Background ............................................................................................................................................................................ 8

3.1

Site History ........................................................................................................................................................................ 8

3.2

Hydrology .......................................................................................................................................................................... 8

3.3

Geology .............................................................................................................................................................................. 9

3.3.1 3.4

Hydrogeology ................................................................................................................................................................10

3.4.1 4.0

Regional Geology ...................................................................................................................................................... 9 Regional Hydrogeology ........................................................................................................................................10

Characterization Methods ..............................................................................................................................................12

4.1

Drilling Investigation ...................................................................................................................................................12

4.1.1

June 2019 Drilling Investigation Event ............................................................................................................13

4.1.2

July/August 2019 Investigation Event .............................................................................................................15

4.1.3

Site Geology ..............................................................................................................................................................16

4.2 4.2.1

Site Hydrogeology .......................................................................................................................................................17 Groundwater Elevations ........................................................................................................................................18

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4.2.2

4.2.2.1

Background and Methods .........................................................................................................................19

4.2.2.2

Data Analysis ...................................................................................................................................................19

4.3 5.0

Slug Testing ...............................................................................................................................................................19

Well Survey ......................................................................................................................................................................20 Investigation Results.........................................................................................................................................................21

5.1

Soil and Groundwater Analytical Results.............................................................................................................21

5.1.1

Soil Analytical Results ............................................................................................................................................21

5.1.2

Groundwater Analytical Results .........................................................................................................................21

5.1.3

Waste Characterization Analytical Results.....................................................................................................22

5.2 6.0

Slug Test Results ...........................................................................................................................................................22 Groundwater Model .........................................................................................................................................................24

6.1

MODFLOW Groundwater Model ............................................................................................................................24

6.1.1

MODFLOW Groundwater Model Development ..........................................................................................24

6.1.2

Simulations.................................................................................................................................................................24

6.2 7.0

MODFLOW Groundwater Model Results ............................................................................................................25 Conceptual Site Model ....................................................................................................................................................26

7.1.1

Current and Future Land and Groundwater Use.........................................................................................26

7.1.2

Known Existing or Proposed Land or Water Use Restrictions ...............................................................26

7.1.3

Site Setting .................................................................................................................................................................26

7.1.4

Remedial Activities Conducted to Date ..........................................................................................................26

7.1.5

Potential COC Migration ......................................................................................................................................27

7.1.6

Spatial and Temporal Distribution of COCs ..................................................................................................28

7.1.7

Receptor Exposure Pathways ..............................................................................................................................28

8.0

Conclusions ..........................................................................................................................................................................29

8.1

Site Soil and Groundwater ........................................................................................................................................29

8.2

Groundwater Flow ........................................................................................................................................................29

8.3

Potential COC Migration ............................................................................................................................................30

8.4

Recommendations for Future Work ......................................................................................................................31

9.0

References ............................................................................................................................................................................32

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List of Tables Table 1-1

Groundwater Analytical Data Summary

Table 4-2

Waste Characterization Data Summary

Table 4-1

Table 4-3

Soil Analytical Data Summary

Monitoring Well Construction Summary

Table 4-4

Water Level Summary Table

Table 5-2

Slug Test Results Summary

Table 5-1

Groundwater Sampling Constituent List

List of Figures Figure 1-1

Figure 2-1

Figure 2-2

Figure 3-1

Figure 3-2

Figure 4-1

Site Location Map

Site Layout

Monitoring Well Locations

Land Use

Site Topographic Map

Cross Section Location Map

Figure 4-2

Cross Section A-A’

Figure 4-4

Cross Section C-C’

Figure 4-3

Cross Section B-B’

Figure 4-5

Groundwater Potentiometric Surface

Figure 6-1

Domain of Groundwater Flow Model and Boundary Condition

Figure 5-1

Figure 7-1 Figure 7-2

Groundwater Concentrations

Downgradient Receptor Map

Conceptual Site Model

List of Appendices Appendix A

Field Notes

Appendix C

Well Certifications

Appendix B

Appendix D Appendix E

Appendix F

Boring Logs and Construction Diagrams Laboratory Analytical Results

Aquifer Testing

Groundwater Flow Modeling

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iii

Certifications I hereby certify that this report was prepared by me or under my direct supervision and that I am a duly Registered Professional Geologist under the laws of the State of Missouri.

5/5/2020

Anthony M. Schroer, RG

Date

RG #: 2010039499

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1.0 Executive Summary Independence Power and Light (IPL) owns three closed and capped, former coal combustion residuals

(CCR) impoundments totaling approximately 54-acres, at the Blue Valley Power Plant (Facility) in

Independence, Missouri (Figure 1-1). This executive summary has been provided to present the key

elements of the site characterization that was conducted to identify potential environmental impacts associated with the former impoundments.

The facility’s Missouri State Operating Permit (MSOP), MO-0115924, Part C. Special Condition 16., outlines

a list of requirements that lead up to full implementation of a Groundwater Monitoring, Sampling, and

Analysis Plan (GMSAP) for the site. Special Condition 16(a) requires the Site Characterization Work Plan

be developed and submitted to the Missouri Department of Natural Resources (MDNR) Water Protection Program (WPP), by December 17, 2018. This condition was satisfied with the submittal of a work plan

developed in accordance with the requirements of the MSOP on November 18, 2018, and the work plan was approved by MDNR on April 12, 2019.

IPL conducted this site characterization to gather information to implement the requirements of state

permit MO-0115924; however, the groundwater monitoring program proposed is designed to satisfy the

groundwater requirements of the Federal CCR rule as well. The groundwater monitoring system requires the development and implementation of a GMSAP and installation of a groundwater monitoring well network. To properly design the groundwater monitoring well network for the site and develop an accurate GMSAP, a geologic and hydrologic site characterization was completed.

This report provides a summary of the site characterization activities and includes recommendations for additional work to be performed as the project progresses towards the development of a groundwater monitoring program. The study area for this report includes the former CCR impoundments and areas immediately adjacent to the former impoundments (herein referred to as the Site).

1.1 Synopsis In brief, the most important issue to note with regard to the former impoundments is that they currently pose little risk to human health or the environment from leaching of CCR constituents to groundwater.

This is because there is only one potential groundwater receptor near the former impoundments, the concentrations of potential constituents of concern (COCs) are relatively low, and the fine-grained material restrict groundwater velocity, thereby reducing potential offsite impacts (Table 1-1).

1.2 Background The Facility was constructed in 1958 as a tri-fuel steam electric power plant that burned coal, diesel, and natural gas until 2015, when it ceased power production from coal and diesel and was converted to a

natural gas facility. Two of the original CCR impoundments, the south fly ash pond, and bottom ash pond

were built in 1978. The north fly ash pond was constructed in 1989. The Facility sluiced bottom ash and fly ash into the ponds until 2015. Upon the discontinuation of ash sluicing into the CCR impoundments, 1

the former impoundments became “inactive surface impoundments” subject to the requirements of the

Federal CCR Rule, 40 CFR 257.100, Subpart D. The Notice of Closure Completion for all three former

impoundments was submitted to MDNR in December 19, 2017.

1.3 Physical Setting The former impoundments overlie low permeability unconsolidated units of mostly interlayered clays and silt. Underlying the unconsolidated materials are Pennsylvanian bedrock layers. Due to the nature of the

unconsolidated units, there is a significant positive benefit to the environment. The potentially impacted

groundwater migrating from the impoundment is unlikely to pose a risk to future groundwater users due to long travel times and low volumes of potentially impacted water that can migrate.

Under the current conditions, the engineered cap over the former impoundments restricts infiltration of precipitation into the CCR material, thus minimizing the potential for leaching to occur. In addition,

groundwater levels at the site have been measured to be below the bottom of the former impoundments.

1.4 Site Characterization The site characterization scope of work included a drilling investigation, downgradient and upgradient well installation, soil sampling of numerous borings, aquifer testing, groundwater monitoring, and

groundwater flow modeling of fluid flow in the underlying groundwater system using a MODFLOW model.

This scope included the following tasks: •

Direct push/hollow stem auger borings were drilled on the downgradient edge of the former

impoundments to install groundwater monitoring wells and gather geologic and hydrogeologic

information for that portion of the Site. Information gathered from these activities was utilized in the development of the groundwater model.

•

Rotasonic borings were drilled on the upgradient edge of the former impoundments to install

groundwater monitoring wells and gather geologic and hydrogeologic information for that portion of the Site. Additionally, soil samples were collected from some of the borings to evaluate whether

contamination from offsite sources could be migrating towards the former impoundments. Similar to

the downgradient borings, information gathered from these activities was utilized in the development of the groundwater model. •

Slug tests were performed utilizing the downgradient wells to evaluate the groundwater flow

conditions underlying the impoundment. Data from the testing indicates a low horizontal hydraulic

conductivity beneath the former impoundments.

As indicated above, the characterization data were used to develop a conceptual site model (CSM) and

gain a better understanding of the hydrogeologic setting of the former impoundments. Additionally, site characterization data will be utilized to develop the GMSAP. 2

1.5 Groundwater Flow Model Design One of the goals of the site characterization work was to collect data to be used in the construction of a

three-dimensional flow model (MODFLOW model) that could be used as a “work bench” to evaluate flow dynamics at the Site and simulate flow under various conditions.

The MODFLOW model has five layers–the top layer representing the former impoundments and the lower

four layers representing the unconsolidated units and the Pennsylvanian bedrock units. The model

simulates the influence of the engineered cap on the former impoundments, the potential interaction between groundwater and the CCR, and regional groundwater flow.

The MODFLOW model was calibrated to historical and current ranges of groundwater elevations, slug test

data, and other regional and Site data. The modeled regional direction of groundwater flow is east-

southeast toward the Little Blue River. Modeled groundwater flow at the site is generally consistent with observed Site groundwater flow.

1.6 Investigation Results Key findings of the investigation revealed that the unconsolidated units underlying the former

impoundments have a low horizontal hydraulic conductivity and the calculated groundwater interstitial

velocity indicates a slow migration time. In addition, typical CCR potential COCs identified in the

groundwater were also identified in upgradient soil samples indicating that the native soils contain metals

in exceedance of the MRBCA Default Target Levels. Additional metals were identified in the Site groundwater that were either not detected in the Site soils or exceeded the soil concentrations.

Groundwater potential COC concentrations are shown in Table 1-1, which indicates the range of

detections in the groundwater monitoring network, and the applicable standards associated with the

range. The constituents observed in the groundwater are similar in the upgradient and downgradient

wells. This indicates that most of the constituents detected in the groundwater samples are a product of leaching from native soils. This is confirmed by the detections of the constituents in the upgradient soil samples, indicating that leaching of the CCR material is potentially minimal.

1.7 Conclusions Based on observations made during the site characterization, the groundwater underlying the former

impoundments migrates slowly to the east from the Site. The results of the groundwater model confirm that the flow is primarily to the east with a minor southerly vector. The groundwater modeling also indicated that the flow dynamics were generally the same during the active period of the former

impoundments. Since the groundwater flow is primarily to the east, the current groundwater monitoring network adequately monitors the potential migration of constituents offsite.

There are two complete receptor exposure pathways for COCs that could potentially impact human health

or the environment, shallow groundwater ingestion and dermal contact. Shallow groundwater

downgradient of the Site is not used for water supply and due to the poor quality is unlikely to be used as 3

a drinking water source in the future. In addition, between the Site and the potential receptors is unconsolidated material that is likely to adsorb metal particulates and reduce potential COC

concentrations. Potential dermal contact with CCR or CCR-impacted soil is unlikely due to the controlled

access to the former impoundments. Potential dermal contact that could occur during construction in the

Site area could be minimized using project controls and utilizing workers with the proper training. Based on the analytical results thus far, arsenic is the only potential COC to be detected in the

downgradient wells that exceed the United States Environmental Protection Agency (EPA) Maximum

Contaminant Levels (MCLs); however,further analytical testing will need to be done to determine whether the arsenic concentrations are naturally occurring or related to the impoundments.

As required, a GMSAP will be developed for the Site and a groundwater monitoring program will be

implemented to continue evaluating groundwater quality upgradient and downgradient of the former

impoundments.

2.0 Introduction Barr Engineering Co. (Barr) has prepared this site characterization report for the IPL Blue Valley Power

Plant Facility located at 21500 East Truman Road in Independence, Missouri (Figure 1-1). The Facility

completed the closure of three CCR impoundments and final closure report in early 2018 following the Facility’s discontinuation of all coal power generation and corresponding conversion to a natural gas power facility in 2015. The study area for this report is displayed in Figure 2-1.

Federal regulations and the Facility’s MSOP, MO-0115924, require groundwater monitoring to determine the potential impact of the coal ash impoundments on groundwater quality. Specifically, these

requirements include the following: •

Federal CCR Rule requires all facilities with CCR impoundments to design and operate a groundwater monitoring system that includes both the installation of a groundwater monitoring well network and GMSAP. While the Blue Valley Impoundments closed under the inactive surface impoundment

provisions that specifically eliminated the groundwater requirement, IPL recognizes the need to evaluate potential groundwater impacts and acknowledges the scientific rigor of the CCR rule

groundwater approach. However, in order to properly design the groundwater monitoring well network for the Site, a geologic and hydrologic site characterization must first be completed.

•

Part C Special Condition 16 of the MSOP requires a series of efforts, including a site characterization report, that lead up to the full implementation of a GMSAP.

IPL intends to design the groundwater monitoring well network and GMSAP to achieve compliance with the MSOP while following the approach contained in 40 CFR Part 257, Subpart D.

2.1 Purpose The purpose of this report is to characterize the site’s geology and hydrogeology to comply with Special Condition 16 of the MSOP while following the 40 CFR Part 257, Subpart D approach. The site

characterization will serve as the basis of the design for the groundwater monitoring well network and

development of the GMSAP. The field activities and results described in this report are based on the

scope of work presented in the Blue Valley Coal Combustion Residuals Impoundment Site Characterization Work Plan (herein referred to as the Work Plan [Barr, 2019]), which was developed in compliance with the Missouri Geological Survey Guidance for Conducting a Detailed Hydrogeologic Site Characterization and

Designing a Groundwater Monitoring Program (MDNR, 2010), and approved by the MDNR in a letter dated

April 12, 2019. The Work Plan prescribes the following activities to obtain data to characterize the Site: •

Drill rotasonic/hollow stem auger borings upgradient and downgradient of the former impoundments to evaluate the subsurface soil and bedrock as well as the underlying aquifer

•

Sample soil from the upgradient borings to obtain geochemical data in order to determine the background conditions of the former impoundments and potential upgradient COCs

•

Convert the borings to temporary monitoring wells to measure groundwater levels in order to understand the Site’s hydrogeology

•

Perform slug tests on the temporary monitoring wells to estimate the hydraulic conductivity for the underlying shallow aquifer

•

Convert the temporary monitoring wells to permanent wells for continual groundwater level measurement

•

Sample groundwater from the monitoring wells to preliminarily assess the existence and

concentrations of potential COCs and assist with the development of the GMSAP. Analytical results

from this preliminary sampling are considered advisory in nature and are not intended for compliance

as a GMSAP and groundwater monitoring program have not been submitted or approved. •

Develop a MODFLOW groundwater flow model for the Site to determine the flow direction(s) of

shallow groundwater; provide a tool for comparing alternative groundwater monitoring network well

locations

2.2 Deviations from the Work Plan The following modifications to the Work Plan were made as described below per the corresponding

rationale: •

Boreholes BH-7, BH-8, BH-9, and BH-10, which correspond to Monitoring Wells MW-1, MW-2, MW-3, and MW-4 (Figure 2-2) were drilled to a depth of 35 feet, instead of 30 feet as described in the Work

Plan, to maintain uniformity among the wells, to characterize a sand lens on the downgradient side of

the former impoundments, and to ensure the wells reached the shallow aquifer underlying the former

impoundments. In addition, boring BH-10 was drilled to 45 feet, and the well was installed with a 30 foot screen to better characterize the hydrogeology in this location.

•

Proposed temporary monitoring wells on the downgradient side of the former impoundments were

installed as permanent monitoring wells (Monitoring Wells MW-1, MW-2, MW-3, MW-4, and MW-5;

Figure 2-2) to mitigate the need to remobilize a drill team in these locations. This change was made

because the wells are located along the downgradient slope of the CCR impoundments, which is

located at the bottom of a steep incline, where access with a drill rig is very difficult. The permanent

wells were installed in compliance with the Missouri Well Construction Code (10 CSR 23-4). •

Temporary Well TW-1 was drilled beyond the proposed 50 feet below ground surface (bgs) to lower

the potential for setting a well above the water table but below the unanticipated oil layers, which were discovered during drilling at approximately 54 feet bgs. •

Proposed borings BH-3 and BH-5 were not drilled. These borings were not completed, because they

were determined to not be necessary for upgradient characterization, and because the wells drilled on the upgradient side of the former impoundments needed to be installed at depths nearly twice what

was proposed, due to difficulties identifying saturated zones and unanticipated layers of coal and naturally occurring oil. •

Temporary well TW-2 was relocated approximately 500 feet to the southwest of the proposed

location to provide subsurface information that would be representative of the proposed locations for BH-2 and BH-3. •

Boring BH-11 was shifted approximately 200 feet south of its proposed location for easier access to

the drilling location. This boring was converted to a permanent monitoring well and renamed MW-5.

The boring for MW-5 was drilled beyond the proposed 30 foot depth to provide additional geologic

information for that portion of the Site and to make sure the well intercepted the water table. •

For the remainder of this report discussions of the borings drilled at the site will utilize the borehole

identity presented in the Work Plan, however, once the boreholes were converted to monitoring wells (permanent or temporary) they were renamed according to the chart below. Wells will be referred to

by their permanent well name from this point further in the text. Borehole ID

Temporary Well ID

Permanent Well ID

BH-1 BH-2 BH-4 BH-6 BH-7 BH-8 BH-9 BH-10 BH-11

TW-1 TW-2 TW-4 TW-3 NA NA NA NA NA

MW-6 MW-7 MW-8 NA MW-1 MW-2 MW-3 MW-4 MW-5

NA=Not Applicable

3.0 Background The Site is located approximately seven miles south of the Missouri River in the north central portion of Jackson County at 21500 East Truman Road in Independence, Missouri in Section 3, Township 49N, and

Range 31W. Figure 2-1 displays the Site location and impoundment boundary. The Site is located within

the Central Irregular Plains Ecoregion of west central Missouri. Potential natural vegetation of this

ecoregion includes a mix of grassland and forest, with forested areas particularly located along streams (Purdue, 2020). Land use adjacent to the Site, displayed on Figure 3-1, is primarily industrial and

agricultural, with industries located north, south, and west of the Site and agricultural land located to the east. An isolated residential area is also located north of the Site.

Regional topography is characterized by hills and associated dendritic drainage patterns with

approximately 150 feet of relief within one mile of the Site. Hills north and west of the Facility have

elevations as high as 900 feet above mean sea level (MSL). The Site has features with elevations that

range from approximately 750 to 800 feet above MSL and slope from the northwest to southeast (Figure

3-2). A topographic divide, located in the southwest portion of the Site, separates the Little Blue River and Burr Oak-Creek-Little Blue River subwatersheds (Hydrologic Unit Code 12).

3.1 Site History The Facility was constructed in 1958 as a tri-fuel steam electric power plant that burned coal, diesel, and

natural gas until 2015, when it ceased power production from coal and diesel and was converted to a

natural gas facility. The original CCR impoundments, the south fly ash pond, and bottom ash pond were

built in 1978. The north fly ash pond was constructed in 1989. The Facility sluiced bottom ash and fly ash

into the ponds until 2015. Upon the discontinuation of ash sluicing into the CCR impoundments on September 9, 2015, the impoundments became “inactive surface impoundments” subject to the

requirements to the Federal CCR Rule, 40 CFR 257.100, Subpart D. The Notice of Closure Completion was

submitted to MDNR in December 2017.

3.2 Hydrology The general climate of the Kansas City region is a continental climate categorized strong seasonality,

including hot, humid summers; cold, dry winters; and significant, abrupt changes during the spring and

fall transitions caused by fast-moving fronts that separate contrasting air masses (University of Missouri, 2019). The City of Independence averages approximately 43.6 inches (110.7 cm) of rainfall per year, an

average annual high temperature of 64.7 degrees Fahrenheit (18.2 degrees Celsius) and an average annual low temperature of 44.2 degrees Fahrenheit (6.8 degrees Celsius;) on the U.S. Climate Data website.

Average annual evapotranspiration for the area, estimated during the period 1971-2000) is approximately

24.0-27.6 inches (61-70 centimeters), with an estimated 60%-69% of precipitation lost to evapotranspiration (Sanford, 2013).

The Site is primarily located in the Little Blue River subwatershed (Hydrologic Unit Code 12) of the Lower

Missouri-Crooked watershed (Hydrologic Unit Code 8). The southwest portion of the Site is located in the Burr Oak-Creek-Little Blue River subwatershed, which is also a subwatershed of the Lower Missouri8

Crooked watershed. The drainage within the Lower Missouri-Crooked watershed is comprised of

approximately seven rivers and their tributaries that feed into the Missouri River, which is located

approximately 5.5 miles north of the Site. The Missouri River runs from west to east through the center of

the watershed with four of the rivers supplying water from the north side of the watershed and three supplying water from the south side of the watershed. The seven streams feeding the Missouri River

within the Lower Missouri Crooked watershed are the Fishing River, Crooked River, East Fork Crooked River, Wakenda Creek, Little Blue River, Sni-A-Bar Creek, and Taboo Creek.

Drainage at the Site generally flows east and south to several small tributaries of the Little Blue River,

except for the southwest corner of the Site, which drains to Spring Branch Creek. The confluence of

Spring Branch Creek and the Little Blue River is located approximately one mile south of the Site (Figure 1-1). Stormwater channels along the impoundment boundaries drain toward the east of the Site.

3.3 Geology The following subsections address the geology of the Site based on pre-existing public reference

information, previous site investigation data, and the investigative borings performed at the Site in 2019,

which are described in more detail in Section 4.1.

3.3.1 Regional Geology The surficial soils of the region and portions of the Site outside the former impoundments consist

primarily of unconsolidated alluvial sediments known as the Sibley Silt Loam series. According to the Soil Survey of Jackson County, Missouri (1984) developed by the United States Department of Agriculture

(USDA), the Sibley Silt Loam is a friable, moderate permeability soil with naturally high fertility (USDA,

1984). The surface layer is generally dark brown, the middle sections can be dark brown to grey, and the lower sections are generally more clayey and dark yellowish-brown with various mottles.

Based on the report, City of Independence, Missouri, Blue Valley Generating Station Ash Pond Addition and Other Improvements (Burns and McDonnell, 1977), the subsurface soil in the proximity of the former

impoundments consists primarily of silty clay with interbedded seams of fine-grained, uncompacted

sandy silt. The report provides descriptive logs for 27 borings drilled in a grid pattern encompassing the

area of the former fly ash and bottom ash ponds. The borings ranged in depth from 10 feet to 64 feet bgs.

The bedrock underlying the region and Site consists of Pennsylvanian aged shales, limestones, sandstone, and siltstones with interbedded coal seams. The Pennsylvanian-aged shales overly older Mississippian aged formations (MDNR, 1997).

The Pennsylvanian-aged Pleasanton Group is the first bedrock unit encountered in the region, located

approximately 25 feet bgs. The Pleasanton Group is predominantly a thick unit of shale with limestone and a basal unit of siltstone or very fined-grained sandstone. Two additional sandstone units, which

combined are known as the Warrensburg Sandstone, are sometimes present in the upper half of the

group depending on the location. The base of the Pleasanton Group marks a break in the depositional 9

sequence occurring in the Pennsylvanian time. This break in the depositional sequence forms a regional disconformity. Underlying the Pleasanton Group bedrock unit is the Marmaton Group. The Marmaton Group is comprised mainly of thick shales with intervening thin layers of limestone and sandstone.

3.4 Hydrogeology The following sections address the hydrogeology of the Site based on a research of available reference

materials conducted for the Work Plan and the investigative activities performed at the Site in 2019, which

are discussed further in Section 4.

3.4.1 Regional Hydrogeology The hydrogeology in the area of the Site is represented by the Missouri River alluvium and Lake City

alluvium, two groundwater subprovinces of the West-Central groundwater province. The Site is primarily located within the Missouri River alluvium, which borders the Lake City alluvium just east of the Site near the Little Blue River. Information describing the West-Central groundwater province and each subprovince is provided below.

The West-Central groundwater province is bounded by the Missouri River to the north, the Springfield

Plateau groundwater province to the south and east, and the Kansas state boundary to the west. The

greatest potential for groundwater yield within this province is from the alluvial deposits along the

northern edge of the province, which include the Missouri River alluvium and Lake City alluvium, further described below. Pennsylvanian-aged formations comprise the bedrock surface units for most of this groundwater province, specifically the Pleasanton and Marmaton Groups in the area of the Site. The

Pleasanton and Marmaton Groups in the region have low recharge potential due to their extremely low

horizontal and vertical permeabilities and are not considered to be water bearing; the Pleasanton Group is considered to be less productive than the Marmaton Group (MDNR, 2020). Of the small amounts of

groundwater that may potentially be drawn from these groups, the groundwater is expected to be of poor quality.

The Missouri River alluvium province is located at the northern portion of the West-Central groundwater

province and extends for the entire length of the Missouri River throughout the state with an aerial extent

of approximately 440 square miles in the vicinity of the Site. The Missouri River alluvium formed from

glacial meltwater runoff during the Pleistocene epoch (Ice Age); the melt water transported a significant amount of sediments that ranged in size from clay particles to boulders, which carved a river channel

much wider than the channel occupied by the Missouri River today. Following the Pleistocene epoch, over-bank flooding of present-day rivers has deposited additional alluvium on river floodplains. The

Missouri River and the Missouri River alluvium province experience delayed recharge; studies of wells

within the alluvium indicated a delayed response of several days between river stages and groundwater levels. Under normal flow conditions in the Missouri River, groundwater gradients in the Missouri River alluvium are toward the river (MDNR, 1997).

In the report Groundwater Resources of Missouri (MDNR, 1997), the Missouri River alluvium is divided into

four segments from the Iowa border to St. Charles, prior to the Missouri River and Mississippi River 10

confluence. For the purpose of this project, the portion of the Missouri River alluvium province discussed

in this section is the Kansas City to Miami, Missouri segment. The Missouri River alluvium in this segment

composed primarily of fine sand, silt, and clay with coarse sands and gravels comprising the deeper

portions of the alluvium. The alluvium has a maximum thickness of 140 feet and an average thickness of

85 to 90 feet. The average saturated thickness of the alluvium is approximately 75 feet for this area.

Groundwater from wells within the Missouri River alluvium supplies a majority of the potable water in the Kansas City area. Yields from the Missouri River alluvium may reach 1,000 to 1,500 gallons per minute

(gpm) in the more permeable areas of the alluvium (MDNR, 1997).

The Lake City alluvium groundwater subprovince is a 16-mile-long, 1-2-mile wide channel that begins at the southern edge of the Missouri River alluvium in central Jackson County near the town of Atherton,

extends southeast to Lake City, and then trends northeast until it again intersects with the Missouri River alluvium in northeastern Jackson County near the town of Levasy. The Lake City alluvial channel likely

formed as a result of an ice damming event on the ancestral Missouri River, which forced the river south

of the existing channel and eroded the new channel, which currently serves as the river valley for the Little

Blue River from Lake City to the Missouri River. The Site is located on the western edge of the Lake City

alluvium channel. A study of this alluvium aquifer at the Lake City Army Ammunition Plant in the early

1940s estimated the alluvium’s thickness to 80 to 90 feet with a depth to water of 15 to 20 feet bgs. Well pumping rates during this study reached 300 to 400 gpm (MDNR, 1997).

4.0 Characterization Methods This section summarizes the investigation methods utilized to fulfill the study objectives of the Work Plan and the overall goal of the project. The objectives of the Work Plan and deviations from the proposed

methods are discussed in Section 2.1 and Section 2.2. Investigation activities at the Site consisted of a subsurface drilling investigation (Section 4.1), groundwater elevation measurements (Section 4.2), slug

(aquifer) testing (Section 4.3), and a survey of the temporary and permanent monitoring wells (Section

4.4). Field investigation activities commenced in June 2019 with the first subsurface drilling investigation

and were mostly complete in August 2019. Some minor field work was completed in the Fall 2019 and

into the winter of 2020. Field activity notes are included as Appendix A.

4.1 Drilling Investigation Barr conducted the subsurface drilling investigation at the Site during two field events. The first drilling investigation event, further described in Section 4.1.1, occurred in late June and involved the drilling of

borings BH-7, BH-8, BH-9, and BH-10. Borings BH-1, BH-2, BH-6, BH-5, and BH-4 were drilled during the second field event, which occurred in late July through early August, discussed further in Section 4.1.2. The objectives of the drilling investigation were the following: 1. 2. 3.

To understand and characterize the hydrogeology of and geology of the Site, including

groundwater quality;

To sample soil from the upgradient borings to evaluate potential offsite impacts and background

conditions; and

To collect groundwater samples to provide an initial understanding of the groundwater quality upgradient and downgradient of the former impoundments.

Due to the limited space between the impoundment slope toe and the property perimeter fencing and

the steep grade to the drilling locations, borings BH-7, BH-8, BH-9, and BH-10 were drilled using direct-

push and hollow stem methods. Borings BH-1, BH-2, BH-4, and BH-6 were performed using a rotasonic drill rig for the purpose of efficiency, speed, and an improved sample recovery over other rotary drilling

methods. Additional information on the drilling investigation methods was provided in the Work Plan.

Soil samples were collected from the borings in accordance with the Collection of Soil Samples, Standard Operating Procedure (SOP) included in Appendix D of the Work Plan. In addition, a composite sample

comprised of drill cuttings from each of the boreholes was analyzed for the eight Resource Conservation and Recovery Act (RCRA) metals (arsenic, barium, cadmium, chromium, lead, mercury, selenium, and

silver) using EPA Method SW-846 1311, the metals toxicity characteristic leaching procedure extraction

methodology. Results of the soil and the investigation derived waste (IDW) analyses are discussed in Section 5.1 and presented in Tables 4-1 and 4-2.

Following the drilling investigation, boreholes BH-7, BH-8, BH-9, BH-10, and BH-11 were immediately

converted to permanent monitoring wells in accordance with the Missouri Well Construction Code 10 CSR 23-4. Boreholes BH-1, BH-2, BH-4, and BH-6 were completed in the subsurface as permanent wells in 12

accordance with the Missouri Well Construction Code 10 CSR 23-4. The surface completions for

boreholes BH-1, BH-2, and BH-4 were installed on February 24, 2020 after it was determined whether the

wells had sufficient recharge to provide consistent representative groundwater samples. The groundwater recharge in borehole BH-6 was very slow in comparison to the other upgradient locations. Therefore, boring BH-6 did not have a surface completion installed and was decommissioned in January 2020.

Groundwater samples were collected from each of the monitoring wells following their installation in

accordance with the Collection of a Groundwater Sample from a Temporary Well SOP (Appendix D of the Work Plan) and the EPA Region 1, Low Stress (low flow) Purging and Sampling Procedure for the

Collection of Groundwater Samples from Monitoring Wells (Appendix E of the Work Plan). Analytical results of the groundwater sampling are discussed in Section 5.1.

4.1.1 June 2019 Drilling Investigation Event Razek Environmental, LLC drilled borings BH-7, BH-8, BH-9, and BH-10 along the downgradient perimeter of the former impoundments between June 24 and June 26, 2019. The borings were drilled using direct-

push technology (DPT)/hollow stem auger (HSA) drilling methodologies using a Geoprobe® rig to depths

of approximately 35 feet bgs, with the exception of BH-10, which was drilled to 64 feet bgs. Samples obtained from DPT borings BH-10, BH-9, BH-8, and BH-7 (in order of drilling completion) provided a better understanding of the soil geology at the downgradient side of the fomer impoundments.

Each of the downgradient borings were converted to monitoring wells following the initial drilling and soil

sampling (Figure 2-2). Although proposed as temporary monitoring wells in the Work Plan, the wells were

instead installed as permanent monitoring wells as mentioned in Section 2.1. A monitoring well construction summary is provided in Table 4-3. Boring logs are included in Appendix B. Boring BH-7

Boring BH-7 (MW-1) was drilled to approximately 35 feet bgs between June 24 and June 26, 2019. The

well was screened using ten slot PVC from approximately 15 to 35 feet bgs (see the lithology summary).

In borehole BH-7 clayey silt was encountered in the drill cuttings to a depth of approximately 12 feet bgs. The material in the core liners then alternated between wet, silty clay and red, clayey silt with trace gravel from approximately 12 to 27 feet bgs. However, the wet, silty clay found at the top of each sample

appeared to closely resemble the silty clay found at shallower depths. In addition, the extremely high

moisture content and expansive nature of the silty clay made it susceptible to sloughing deeper into the

borehole. These factors, combined with the layered repetition of the two materials (in particular the thin layer of the silty clay at the top of each successive run) lead Barr to believe that the grey, silty clay at the

top of each core liner may have been slough from higher in the borehole. The last three inches of sample

obtained from boring BH-7 (approximately 30 feet bgs) displayed green silt similar to material observed in

boring BH-8. The borehole was reamed and over-drilled on June 25 with HSA to a total depth of

approximately 35 feet bgs. However, no noticeable change in material beyond the end sampling depth of 30 feet was observed from the auger cuttings. While installing the well casing, approximately four feet of

sand heave occurred, through which the driller pushed the casing. Upon pulling the augers,

approximately 16 more feet of sand heave occurred around the casing, but the casing was not significantly pushed up. Boring BH-8 Boring BH-8 (MW-2) was drilled to approximately 35 feet bgs on June 25, 2019. The well was screened using ten slot PVC from approximately 15 to 35 feet bgs. The shallow material in bore hole BH-8 was

comprised of clayey silt and silty clay which extended to approximately 15 feet bgs. The material then

transitioned to a dark green silt with little clay from 15 feet bgs to the end sampling depth of 25 feet bgs.

The borehole was over-drilled on June 25 with HSA to approximately 35 feet bgs. However, no noticeable change in material beyond the end sampling depth of 25 feet was observed from the auger cuttings.

While pulling the augers, approximately five feet of sand heave occurred. The driller received permission from Barr to proceed with installing the well through the sand heave. Boring BH-9 Boring BH-9 (MW-3) was drilled to approximately 35 feet bgs on June 24, 2019. The well was screened

using ten slot PVC from approximately 15 to 35 feet (see the lithology summary). Clayey silt and silty clay extended to approximately 25 feet below ground surface. A wet, fine-grained sand was located below

this depth to the bottom sampling depth of 30 feet bgs. The borehole was reamed and over-drilled on

June 25 with HSA to approximately 35 feet bgs. However, no noticeable change in material beyond the end sampling depth of 30 feet was observed from the auger cuttings. Boring BH-10 Boring BH-10 (MW-4) was drilled to approximately 64 feet bgs on June 24, 2019. The well was screened

using ten slot PVC from approximately 12 to 42 feet bgs (see the lithology summary). Samples obtained

from boring BH-10 displayed clayey silt and silty clay to approximately 28 feet bgs. This was followed by wet, expansive clay that prevented further sampling. To identify the depth of the water table on the

downgradient side of the CCR impoundments a solid drive point was pushed to approximately 50 feet bgs. Once the drive point encountered bedrock the drill stem was pulled up to allow groundwater to

enter the boring. Immediately after the drill stem was lifted approximately 25 feet of sand from a wet,

confined layer heaved up into the drill stem. A second solid drive point was pushed on June 25 to confirm the unconsolidated material/bedrock interface depth. The interface was located at approximately 64 feet bgs. The borehole was then over-drilled with HSA to approximately 45 feet bgs to install a groundwater monitoring well. However, no noticeable change in material beyond the end sampling depth of 30 feet was observed from the auger cuttings. Well Installation After a discussion between IPL, Barr, and the Missouri Geological Survey (MGS) personnel, the decision

was made on June 25 to install the wells at boring locations BH-7, BH-8, BH-9, and BH-10 as permanent monitoring wells, rather than temporary wells, as was originally proposed in the Work Plan. Well

Certifications are included in Appendix C.

4.1.2 July/August 2019 Investigation Event Cascade Drilling drilled borings BH-1, BH-2, and BH-4 along the upgradient perimeters of the former impoundments and BH-6 and BH-11 along the parallel and downgradient perimeters of the former

impoundments between July 30 and August 9, 2019. The borings were drilled using a rotasonic drilling rig to depths of approximately 56.5 to 131 feet bgs. Analytical results of the July and August 2019

subsurface drilling investigation are discussed in Section 5.1. Boring logs are included in Appendix B. Temporary monitoring wells were installed in each of the borings following the initial drilling and soil

sampling, with the exception of BH-11, which was converted to a permanent monitoring well (Figure 2-2). Boring BH-1 Boring BH-1 (MW-6) was drilled to approximately 71 feet bgs on August 2, 2019. The well was screened using five slot PVC from 66 to 71 feet bgs in alternating beds of shale and limestone (as seen in the

lithology summary). The shallow material in bore hole BH-1 was comprised of silt and plastic clay which

extended to approximately 33 feet bgs. The material then transitioned to a very compressed greyish tan

silt from 33 to 46 feet bgs. A coal interval was encountered from 46 to 47 feet bgs and was underlain by a

medium grey shale layer. From a depth of approximately 48 to 77 feet (bottom of the hole) the lithology was comprised mostly of limestone with intermittent silt/shale layers. In addition, naturally occurring oil was identified in the borehole in intervals from 54 to 61 feet bgs and 67 to 71 feet bgs. Boring BH-2

Boring BH-2 (MW-7) was drilled to approximately 26 feet bgs on August 3, 2019 and then completed to a depth of 92 feet bgs on August 4, 2019. The material from ground surface to approximately 43 feet bgs

in borehole BH-2 was comprised of clayey silt. Underlying the clayey silt was a three foot thick sandy silt

layer. At approximately 46 feet bgs the material transitioned back to clayey silt with thin intervals (1 to 2

inches) of gravel intermixed. The silt present in the borehole from 48 to 76 feet bgs contained thin layers of well-defined laminations. These layers of lamination were present in the following intervals; 48 to 52 feet bgs, 56 to 67 feet bgs, and 71 to 76.5 feet bgs. A coal interval was encountered from 76 to 80 feet

bgs and was underlain by siltstone. The siltstone was present until a depth of approximately 90 feet bgs. A second coal interval was present from 90 feet bgs to the bottom of the borehole. Boring BH-4 Drilling of boring BH-4 (MW-8) commenced on August 2, 2019 and was completed to a depth of 76 feet on August 3, 2019. The well was screened using schedule 40 PVC from 67 to 77 feet bgs. The shallow

material in bore hole BH-4 was comprised of clayey silt from ground surface to 23 feet bgs overlying

compacted silt from approximately 23 to 48 feet bgs. A coal seam was observed from approximately 48 to 49 feet bgs. Underlying the coal seam from 49 to 53 feet bgs was compact silt/weak siltstone. A

weathered limestone interval was observed from 53 to 55 feet bgs which overlain more compacted silt

with intermixed sandstone pieces. The silt was present until a depth of approximately 76 feet (bottom of

the borehole). The interval from 65 to 66 feet bgs contained laminated silt and naturally occurring crude oil within the borehole. Boring BH-6 Boring BH-6 (TW-3) was drilled to approximately 80 feet bgs on July 30, 2019 and then completed to a depth of 131 feet bgs on July 31, 2019. The well was screened using schedule 80 PVC from 111.33 to

121.33 feet bgs siltstone and limestone. The shallow material in bore hole BH-6 was comprised of clay,

clayey silt and silty clay which extended to approximately 26 feet bgs. The material then transitioned to a

grey silt (with limestone gravel intermixed at 27 to 28 feet) from approximately 26 to 47 feet bgs. A thin

layer of coal was observed from approximately 47.5 to 48 feet bgs. Underlying the coal layer was grey silt similar to what was observed from 26 to 47.5 feet bgs. Another thin coal seam was observed from

approximately 49 to 50.5 feet bgs. At 71 feet the material transitioned to a dry dark grey silt with pieces of siltstone intermixed. Underlying the dark grey silt from approximately 116.6 to 124 feet bgs was a

course crystalline limestone. A three foot thick layer of coal was observed between 124 and 127 feet bgs

in the borehole which overlain more course crystalline limestone. The limestone was present until a depth of approximately 131 feet (bottom of the borehole). Boring BH-11 Boring BH-11 (MW-5) was drilled to approximately 56.5 feet bgs on August 5, 2019. The well was drilled

to depth of 56.5 feet in attempt to screen the well in the same formation as monitoring wells MW-1, MW2, MW-3, and MW-4, which are located on the downgradient portion of the site. Boring BH-11 was

screened using schedule 40 PVC from 46 to 56 feet bgs in sandy silt. The shallow material in bore hole

BH-11 was comprised of silt overlying intermixed coal and gravel. At approximately 2.5 feet bgs a tan silty clay was observed, which was present until approximately 17 feet bgs. The tan silty clay transitioned into

a sandy silt which was present from 17 to 25 feet bgs. Underlying the sandy silt was a gray silty clay which

was observed until a depth of 42 feet bgs.

4.1.3 Site Geology In general, the boreholes drilled for the Site investigation confirmed the presence of the soil types and

geologic units identified in the research of the Site. In contrast to the previous geologic evaluation, the

boreholes at the Site found depths of bedrock to be greater than the anticipated 25 feet bgs. The

lithology at the site is depicted in the cross section figures 4-2 through 4-4. Boreholes drilled during the Site investigation identified silty clays and clayey silts as the surficial layers at the Site, which confirmed

the findings of previous studies. The four boreholes drilled east of the former impoundments (Figure 2-2) were drilled approximately 35 to 42 feet bgs and did not encounter bedrock. The five boreholes on the west and south of the former impoundments encountered bedrock consisting of alternating bands of

siltstones and limestones at 47 to 77 feet bgs, with the exception of BH-11, which was drilled to a depth of 56.5 feet and did not encounter bedrock. Four of the boreholes (BH-1, BH-2, BH-4, and BH-6) first

encountered coal seams at 46 to 72 feet bgs, whereas BH-11 encountered a 0.5 foot layer of coal 1 foot bgs, but did not encounter coal at greater depths. BH-1 encountered crude oil between 54 and 56 feet

bgs, whereas crude was encountered in borehole BH-4 between 65 to 66 feet bgs. Naturally occurring

coal and oil are not uncommon in Pennsylvanian aged bedrock units in the western portion of Missouri. The unconsolidated units encountered during the drilling did not appear to resemble residuum formed

from the underlying bedrock. The interlaying of the clay, silt, and sand units resembled sequences

encountered in the floodplains of rivers. These deposits seemed consistent with a meandering fluvial

system. The inconsistent sand layer(s) identified in boreholes BH-1, BH-3, and BH-5 appears to resemble a crevasse splay or natural levee deposit, whereas the clay and silt layers are likely to be floodplain or

basin deposits. The upgradient borings contained less sand than was identified in the boreholes to the east and at the toe of the former impoundments and the material encountered in those boreholes was

primarily fine-grained.

Boring logs for the boreholes drilled during the drilling investigation are included in Appendix B and well

certifications are located in Appendix C.

4.2 Site Hydrogeology Groundwater monitoring of the Site’s temporary and permanent monitoring wells indicate the Site has a

shallow water table in the unconsolidated units approximately 25 feet bgs. Water levels in the monitoring

wells also indicate that groundwater flow at the Site generally trends east toward the Little Blue River (Figure 4-5).

As mentioned previously in Section 3.3, the hydrogeologic properties of the subsurface materials

underlying the former impoundments vary from the shallow unconsolidated zones to the upper bedrock

zone. The permeability of the unconsolidated materials immediately underlying the former

impoundments was evaluated as part of the closure process. The report CCR Clean Closure in New

Sedimentation Pond Construction Area indicates the foundation soils of the former impoundments are

highly plastic and have a permeability in the range of 2 x 10-7 to 1 x 10-8 cm/sec (SCS, 2017).

Horizontal gradients measured across the Site range from 0.005 to 0.018 (range for gradients from three different areas of the Site.) for the November groundwater elevation data. The horizontal gradient

measured across the northwestern portion of the Site (MW-6 to MW-8) was calculated to be 0.018. The

horizontal gradient measured across the northeastern portion of the Site (MW-1 to MW-8) was calculated

to be 0.015. The horizontal gradient measured across the central portion of the Site (MW-7 to MW-4) was calculated to be 0.005. Because a nested well set was not installed during the site characterization work, a vertical gradient at the site was not able to be calculated.

The average hydraulic gradient is towards the east/southeast across most of the impoundment area with a slope of approximately 0.005 across the central portion of the Site. An approximate average interstitial velocity across the Site has been estimated to range from 7.76 x 10-3 feet/day to 2.13 x 10-3 feet/day (i.e.

0.8 to 2.8 feet/year) as calculated by the following equation and input data: v = Ki/n, where

v = average interstitial velocity K = hydraulic conductivity (ranges from 0.388 to 0.171 feet/day) i = average hydraulic gradient across the Site (0.005) n = effective porosity (estimated to range from 0.25 to 0.4) The geology underlying the former impoundments is comprised of interlayered silts and clays, which

would likely impede vertical migration of water. The water levels in the upgradient monitoring wells took a period of approximately one to two months to stabilize, indicating that groundwater movement

vertically and horizontally underlying the upgradient, western portion of the former impoundment is relatively slow.

In contrast, groundwater recharge on the downgradient side of the former impoundments was

significantly faster than in the upgradient wells. During well development, the downgradient wells

maintained a consistent groundwater recharge during purging. Although the purging rate exceeded the recharge, typically purging was performed for long periods before pumping needed to be stopped. The

hydraulic conductivities calculated for the downgradient wells ranged from 1.4 x 10-4 (cm/sec) to 6.0 x 10(cm/sec). The difference in the recharge rates between the downgradient and upgradient wells is likely

due to the presence of the sand intervals at the toe of the berm and the hydraulic head from the former impoundments.

The slug test results are consistent with the interpreted hydrogeologic settings. The results of the slug

tests, pumping observations, and groundwater stabilization indicate the aquifer materials have very low horizontal and vertical hydraulic conductivities.

4.2.1 Groundwater Elevations Subsequent to the monitoring well installations groundwater elevations were collected weekly over three seasons, for a period of approximately four months, during the summer of 2019, fall of 2019, and winter of 2019 and 2020 (Table 4-4). The intent of the groundwater elevation monitoring periods was to

determine typical groundwater elevations at each monitoring well and observe any potential seasonal flux on those elevations.

Groundwater monitoring of the Site’s temporary and permanent monitoring wells indicate a shallow water table in the subsurface approximately 25 feet below the impoundment surface. Water levels in the

monitoring wells also indicate that groundwater flow at the Site generally trends primarily east. Figure 45 presents a groundwater contour map established from the elevation measurements. The groundwater

flow directions for the site were determined using groundwater elevations from all of the monitoring wells except TW-03, due to the slow recharge rate.

Due to the relatively higher recharge rates the downgradient well groundwater elevations have not

changed significantly during the four month monitoring period. The greatest difference of water levels

observed in the downgradient wells is approximately 2.5 feet in monitoring well MW-4. This groundwater elevation change represents a seasonal flux from August to January.

The groundwater elevation changes in the upgradient wells is significantly more prominent than the

changes observed in the downgradient wells. The groundwater elevations for the upgradient wells have

been observed to change up to 86 feet (TW-3) after installation before reaching stabilization. In the case of temporary well TW-3, the groundwater levels may still be stabilizing. It is likely that after stabilization

has occurred in these wells water level flux will be limited and resemble the changes observed in the downgradient wells.

Groundwater flow paths for the southern former impoundment area have remained relatively consistent throughout the monitoring period. In contrast, the stabilization of the groundwater elevations in MW-8 did not occur until November which resulted in flow paths that did not accurately reflect groundwater flow in that portion of the Site. Groundwater in well TW-3 appeared to be stabilizing up until it was decommissioned.

4.2.2 Slug Testing 4.2.2.1 Background and Methods Barr staff performed slug tests on each of the downgradient wells and two of the upgradient wells to

obtain data to evaluate the change in groundwater levels in response to hydraulic stress. The purpose of

the slug test data is to estimate hydrogeologic parameters and allow for the assessment of potential heterogeneities within the aquifer around and beneath the former impoundments, and determine

hydraulic parameter values (e.g., hydraulic conductivity). The estimations from the slug test data will be

used to calibrate the MODFLOW groundwater flow model for the Site. The development of the MODFLOW groundwater flow model for the Site is discussed in Section 6.

The slug tests were conducted in accordance with ASTM D-4044 for each well borehole following well

development. Slug tests for each borehole generally consisted of a paired data set when possible, each

measured using a pressure transducer connected to a data logger. For first half of the paired data set,

water levels in the borehole were measured upon introducing a solid PVC cylinder, i.e., slug, into the

borehole to displace the water level and then allowing it to equilibrate, or return to the water level prior to the introduction of the slug. Once water levels equilibrated, the second half of the data set measured water levels in the borehole from the time the slug was removed until water levels equilibrated for a second time.

4.2.2.2 Data Analysis Time and water levels for the slug test data pairs were recorded by the data logger according to a logarithmic schedule. The data from the slug tests were analyzed using aquifer analysis software

AQTESOLV (Duffield, 2007) using one of the methods listed below or other appropriate methods pending

the aquifer response and the hydrogeologic setting for each well: 19

•

Pumping test solution in an unconfined/confined aquifer (Bower-Rice, 1976)

•

Pumping test solution in a non-uniform aquifer (Butler, 1988)

4.3 Well Survey With the surface completion installation for monitoring wells MW-6 (TW-1), MW-7 (TW-2), and MW-8

(TW-4), J&J Survey surveyed the groundwater monitoring well risers to provide a common vertical datum between wells on April 29, 2020. In addition, the ground surface at each well location was also surveyed.

The water elevations provided in this report utilize the surveyed vertical elevations of the various well locations.

5.0 Investigation Results The following sections discuss the results of the investigation field activities, including the drilling

investigation and slug testing. Laboratory analytical results are included as Appendix D. The results of the

groundwater flow model are discussed in Section 6.0.

5.1 Soil and Groundwater Analytical Results Soil and groundwater quality data collected from the drilling boreholes and resulting monitoring wells

indicate the presence of potential COCs upgradient and downgradient of the former impoundments. Soil

samples were collected on the upgradient side of the former impoundments specifically to assess whether potential contamination had migrated onto the site from upgradient sources. The following sections

discuss the results of the soil and water quality sampling. It should be noted that the groundwater results contained herein are of an advisory, informative nature as they were collected prior to the establishment of an approved GMSAP.

5.1.1 Soil Analytical Results Soil samples were collected from boreholes BH-1, BH-2, BH-4, and BH-11, which correspond to

upgradient monitoring wells MW-6, MW-7, and MW-8 and downgradient monitoring well MW-5. The soil samples were collected from various intervals based on observations during drilling. Depths of the soil

samples ranged from 12 feet bgs (BH-2) to 66 feet bgs (BH-4). Soil samples were submitted to Pace

Analytical Laboratories in Lenexa, Kansas for analysis of the constituents listed in Table 5-1. Table 4-1 summarizes the concentrations of constituents detected in the soil samples and compares the data against Missouri Risk-Based Corrective Action (MRBCA) default soil target levels.

Soil concentrations exceed MRBCA default soil target levels for arsenic (3.89 mg/kg) and lead (3.74

mg/kg) at all sampled boreholes both upgradient and downgradient. Arsenic concentrations in the soil range from 6.4 to 12.2 mg/kg in the upgradient boreholes. The concentration of arsenic in the

downgradient borehole BH-11 was slightly higher (14.4 mg/kg). Lead concentrations range from 5.2 to 17.1 mg/kg in the upgradient boreholes. The concentration of lead detected in the soil in the downgradient borehole BH-11 was 14.6 mg/kg.

5.1.2 Groundwater Analytical Results Groundwater samples were collected at all monitoring wells installed at the Site. Table 1-1 summarizes

the groundwater concentration data from the wells and compares the concentrations against EPA’s MCLs (40 CFR 141.62 and 141.66). Groundwater samples that exceeded EPA’s MCLs are shown on Figure 5-1.

Groundwater concentration exceedances of the EPA MCLs for dissolved and total arsenic, total cobalt, and

dissolved and total lithium were identified in some of the samples. The following list summarizes the

exceedances for each constituent: •

Dissolved and total arsenic: groundwater concentrations exceeded the arsenic MCL of 10 µg/L at

downgradient monitoring wells MW-2, MW-3, and MW-4. Dissolved arsenic concentrations at these 21

three wells ranged from 13.2 to 32.8 µg/L and total arsenic concentrations at the wells ranged from

11.3 to 37.0 µg/L. Groundwater concentrations for arsenic at upgradient well MW-6 also exceeded the arsenic MCL (15.1 µg/L).

•

Total cobalt: The concentration of total cobalt (8.4 µg/L) exceeded the MCL of 6 µg/L at upgradient

well MW-6. •

Dissolved and total lithium: Groundwater concentrations at upgradient wells MW-6 and MW-8

exceeded the lithium MCL of 40 µg/L. The dissolved and total lithium concentrations at well MW-8

were 447 µg/L and 464 µg/L, respectively. The concentration of total lithium at well MW-6 (62.5 µg/L) also exceeded the 40 µg/L MCL.

Although lead levels in the soil samples exceeded Missouri’s default soil target level, lead concentrations

in groundwater did not exceed the MCL of 15 µg/L for dissolved and total lead (Table 1-1) in any of the

samples.

5.1.3 Waste Characterization Analytical Results To determine whether IDW material would need to be disposed of in a permitted facility, composite soil samples comprised of drill cuttings from each of the boreholes drilled during the June, July, and August

2019 field event were analyzed for RCRA metals. Analytical results from composite samples are presented in Table 4-2, and indicate that the soil concentrations from these IDWs do not fail toxic characteristic leaching procedure (TCLP) analysis, and therefore, this soil was returned to the ground onsite

5.2 Slug Test Results As mentioned previously in Section 4.2, the hydrogeologic properties of the subsurface materials

underlying the impoundment vary from the shallow unconsolidated zones to the upper bedrock zone. To determine the hydraulic conductivity of the subsurface units underlying and in close proximity to the former impoundments, several slug tests were performed. A slug test set (slug in/slug out) was

performed in each of the downgradient monitoring wells. The results of the slug tests are included in

Table 5-2. It should be noted that two of the slug test results (MW-2 slug in test and MW-4 slug in test) were not utilized in the model. Monitoring wells MW-2 and MW-4have well screens that straddle the water table, and as a result, the discharge of water from the well filter pack affects the resulting timedisplacement curve.

In addition, a slug test set in wells MW-6 and MW-7 were attempted during the field work. Unfortunately, results from the tests were not definitive and thus were not used in the groundwater model.

The hydraulic conductivities calculated for the downgradient wells ranged from 0.39 to 1.71 (ft/day) with a geometric mean of 0.28 feet/day.

Results of the AQTESOLV (Duffield, 2007) solutions for the slug tests are provided in Appendix E. A straight-line solution for a single well slug test was performed for each well using the Bower-Rice analytical solution.

6.0 Groundwater Model 6.1 MODFLOW Groundwater Model A steady state three-dimensional groundwater flow model was designed and calibrated to support the

preliminary design investigation. Details on model development, boundary conditions, calibration results,

and simulation results are presented in Appendix F.

The United States Geological Survey (USGS) software code MODFLOW-NWT was selected for the project

based primarily on its ability to simulate settings in which saturated layers are perched upon unsaturated layers, such as is likely the case under portions of the former impoundments. A telescoping mesh

refinement was used to increase detail in the impoundment vicinity.

In general, the use of a steady state model is inherently conservative relative to the role that the former impoundments impact the underlying groundwater. Therefore, in order to provide a calibration

representative of the potential variation from the impoundment closure, both an active condition and a closed condition were used to calibrate and refine the model parameters.

The proposed boundaries presented in the Work Plan were utilized for the construction of the

groundwater model. The model was designed to address the hydrogeologic setting of the former

impoundments but, the active model domain extended beyond the limits of the former impoundments to

capture the influence of adjacent hydrologic boundaries. The approximate domain of the groundwater flow model is shown in Figure 6-1.

6.1.1 MODFLOW Groundwater Model Development Model calibration is the process of adjusting parameters (model inputs) to match observations (model outputs and other constraints). The parameters that were adjusted include: •

Model layer hydraulic conductivity.

•

Model layer anisotropy.

•

Recharge rates for the region and the former impoundments (active and closed periods).

•

Conductance of rivers, streams, and ponds (connection of surface water features to aquifer).

Additional information regarding the calibration datasets and parameters are included in Appendix F.

6.1.2 Simulations The data collected during the preliminary design investigation was utilized in the development of the

groundwater flow model. Once the model was calibrated, groundwater flow directions near the former impoundments were evaluated. Comparison was also made between active and closed periods.

6.2 MODFLOW Groundwater Model Results The modeled regional direction of groundwater flow is east-southeast toward the Little Blue River as

illustrated in Figure F-13 and discussed in Appendix F. Modeled groundwater flow at the site is generally consistent with the observed groundwater flow patterns for the Site. Modeled flow from the North Fly

Ash Pond, while active, flowed to the east (offsite) or to the south, toward the South Fly Ash Pond. Post-

closure, groundwater flow directions were very similar in and around the former North Fly Ash Pond area. Modeled flow from the Bottom Ash Pond, while active, flowed north to the sandy unit underlying the

impoundment or southeast. Post-closure, modeled groundwater flow in the former Bottom Ash Pond area was north toward the sandy unit underlying the former impoundment. Modeled flow from the

existing Settling Basin was toward the east. Modeled flow from the South Fly Ash Pond, while active, was to the north to the sandy unit underlying the impoundment or the east and southeast. Post-closure, the

divide within the South Fly Ash Pond area was less pronounced; the modeled groundwater flow directions were northeast to the sandy unit underlying the former impoundment and east (offsite). Based on the

results of the modeled groundwater flow for the Site which is primarily to the east with a slight southerly

vector, the current well network adequately monitors groundwater migrating from underneath the former impoundments.

7.0 Conceptual Site Model A CSM was developed for the Site using the methods and criteria outlined in Section 6 of the Missouri

Risk-Based Corrective Action Technical Guidance document. The objectives of the CSM are to present an

understanding of the Site and to evaluate the potential for the former impoundments to impact potential downgradient receptors.

This CSM will be refined as needed throughout the life of the project to accurately reflect our

understanding of Site conditions.

7.1.1 Current and Future Land and Groundwater Use The current and future land use at the Site is industrial and the land use surrounding the Facility is

primarily industrial (developed), commercial (developed), and agricultural (cultivated crop). Zoning adjacent to the Facility, based on Independence’s zoning map (Independence 2010), is zoned as

residential and industrial to the north and west, industrial to the south, and residential and commercial to the east.

The Site does not currently use onsite groundwater resources, and as the Blue Valley Facility is in the

process of being decommissioned, it is unlikely to develop the capability to use the Site groundwater

resources in the future. In addition, there are not any groundwater extraction wells downgradient of the former impoundments lying directly between the Site and the Little Blue River (Figure 7-1).

7.1.2 Known Existing or Proposed Land or Water Use Restrictions There are not any known existing or proposed land or water use restrictions that exist at the Site or within the groundwater flow path from the Site to the Little Blue River.

7.1.3 Site Setting Site stratigraphy, soil types, hydrogeology, and the regional climate were discussed previously in early

sections of the report. Surface waters between the Site and the Little Blue River may potentially be

impacted by COCs from the former impoundments; however, the interstitial velocity of the groundwater is low and it is unlikely that potential COCs from the former impoundments would have migrated very far from the source. The surface waters that may be impacted include a low-lying, vegetated area located immediately east of the former impoundments. Additional discussion on potential impact areas is presented in Section 7.1.5.

7.1.4 Remedial Activities Conducted to Date The Facility ceased ash sluicing to the former impoundments in 2015 and began the closure process in

July 2016. The Facility submitted the Notice of Closure Completion to MDNR in December 2017.

The Ash Impoundment Closure Report (SCS, 2018) summarizes remedial activities performed during the

closure of the former impoundments. The North Fly Ash pond (16.7 acres), South Fly Ash pond (13.8

acres), and 5.4 acres of the 8.1 acre Bottom Ash pond were “closed-in place” in accordance with Federal 26

CCR Rule, 40 CFR 257.100, paragraphs (b)(1) through (4). Closure-in-place of the former impoundment

areas involved the installation of a final cover system, which included the following from top to bottom: •

Vegetation

•

Minimum of 12 inches of topsoil

•

Geosynthetic clay liner (GCL)

•

Subgrade consisting of fly ash or other stabilized material

Due to the concerns of uplift pressure on the final covers system due to potential high pore water

pressure in the former impoundments, the Facility installed a pressure relief system in four areas of potential uplift, which coincided with four of the five surface runoff outlet areas.

Approximately 2.7 acres of the Bottom Ash pond were clean closed through removal of CCR in

accordance with Federal CCR Rule, 40 CFR 257.100, paragraph (b)(5). This portion of the Bottom Ash Pond was clean closed through removal of the CCR materials and conversion of the area to a

sedimentation basin to manage facility process water that discharges to the POTW through Outfall 002.

7.1.5 Potential COC Migration The boundaries for the conceptual site model are considered to be the Facility’s property line (Figure 1-1). Due to the nature of the Site there is potential for migration of COCs from the former impoundments (i.e.,

“source”) to soil or groundwater via leaching due to the influence of meteoric water or groundwater influx. Potential Chemicals of Concern (COCs) at the Site include those listed in the Fact Sheet of the MSOP and established under the Appendix III and Appendix IV of the Federal CCR Rule (40 CFR 257, Subpart D).

Because the COCs are metals and thus do not have the potential to release contaminants through vapor, there is not a potential for soil vapor contamination.

Potential contaminant migration pathways are outlined in Figure 7-2. Multiple potential contaminant

pathways were evaluated for the site (as shown in Figure 7-2) to determine which could be complete. The anticipated potential contaminant migration path is likely to impact soil in close proximity to the former impoundments and with leaching to the shallow groundwater underlying the former impoundments.

Impacts by the potential COCs to the soil would likely be limited to material directly underlying the former

impoundments or a short distance downgradient. The clay and silt material is likely to adsorb the metal constituents and retard further migration. Additional migration of COCs at the Site would likely follow

shallow advective groundwater flow east toward the Little Blue River. After leaving the Site, groundwater flows to the east through a low-lying vegetated area, agricultural field, under the Little Blue Parkway,

another agricultural field, and ultimately reaches the Little Blue River. Based on hydraulic conductivities

determined through slug tests at the Site (Section 5.3), the estimated time of travel for groundwater from

the eastern perimeter of the Site to the nearby agricultural field is approximately 11 to 22 years, whereas

travel time to the Little Blue River is approximately 1,200 years. There are no known underground utilities or flow boundaries at the Site that would potentially intercept and redirect COC migration in the groundwater flow.

An objective of routine monitoring of the groundwater at the Site in accordance with the MSOP and 40 CFR 257 will be to identify concentrations of COCs in the groundwater at the Site to evaluate potential downstream impacts.

7.1.6 Spatial and Temporal Distribution of COCs Soil and groundwater data collected from the boreholes and resulting monitoring wells indicate the

presence of potential COCs upgradient and downgradient of the former impoundments. The COCs that

exceed MRBCA default soil levels include arsenic and lead. In addition, COCs that exceeded EPA’s MCLs in

groundwater included arsenic, cobalt, and lithium.

7.1.7 Receptor Exposure Pathways As discussed in Section 7.1.5, potential migration of COCs from the former impoundments could

potentially occur via leaching due to the influence of meteoric water infiltration or groundwater influx

through the former impoundments. The primary potential exposure pathways are shallow groundwater and surface water features. The closest perennial surface water feature downgradient of the Site is the Little Blue River, which is located approximately 0.5 miles southeast of the Site (Figure 2-1). Other

potential exposure pathways may include, but are not limited to, wetland, agricultural land, and

ephemeral surface waters via shallow groundwater. However, the risk associated with these potential exposure routes are the same as the routes identified for shallow groundwater. Potential COC

concentrations are anticipated to decrease downgradient of the Site due to adsorption of metals to clay particles in the soil and dilution.

Risks to potential receptors include the following: •

Risk of ingestion: The risk of ingestion due to drinking water contamination from the Site is

anticipated to be low because there are no drinking water wells currently located in the groundwater flow path directly between the Site and the Little Blue River, which discharges to the Missouri River.

Therefore, currently there is no complete exposure pathway for ingestion. The shallow groundwater in the area is considered to be low quality and to have low recharge capability. In addition, in

comparison to the low quality water in the shallow subsurface, the City of Independence is capable of providing high quality potable water to its residents through its municipal drinking water system

which reduces the need for private shallow drinking water wells.

A secondary risk could come from the ingestion of agricultural products grown in the areas to the

east of the former impoundments. The closest agricultural area is identified on Figure 4-5. Uptake of metals via groundwater/surface water can result in the concentration of metals in the plant. •

Risk of dermal contact: The risk of adverse dermal contact from contaminants at the site is anticipated

to be low. Potential current or future dermal contact may include, but is not limited to, soil excavation due to construction. Regarding dermal contact that could occur during construction activity, the

exposure pathway is incomplete because IPL could limit access to potentially impacted soil, or use

institutional/physical controls to reduce the potential for dermal contact. In addition, the area of the former impoundments is covered by an environmental lien or deed restriction preventing construction that would penetrate or disturb the cap. 28

8.0 Conclusions This Site Characterization Report for the closed CCR impoundments at the IPL Blue Valley Facility was

completed to assess the current conditions of the geology/hydrogeology at the Site and gain an understanding of the potential for COCs located within the former impoundments to impact

downgradient receptors. The results of the investigation have been summarized in the previous sections and the conclusions and recommendations based on those results are outlined in the following paragraphs.

8.1 Site Soil and Groundwater Analytical results for the soil samples collected from the upgradient boring locations indicate that the

native materials at the Site contain concentrations of metals that exceed the MRBCA Default Target Levels. These naturally-occurring metals in the native materials are also typical metals associated with CCR. All

five of the soil samples collected upgradient of the former impoundments contained concentrations for

arsenic and lead in exceedance of the MRBCA Default Target Levels. Although cobalt does not exceed the MRBCA Default Target Levels, the concentrations detected in the soil samples are consistent with concentrations detected in the groundwater samples. Therefore, native soil around the former

impoundments are likely to be a source for metals in the groundwater.

Upgradient and downgradient groundwater sample concentrations indicate that the groundwater

contains metals concentrations. Metals concentrations for arsenic and lithium exceed the MCLs in upgradient and downgradient wells. As a result, groundwater monitoring in compliance with the proposed GMSAP will monitor these and other parameters to identify their potential source and representativeness in the shallow groundwater.

8.2 Groundwater Flow Results of the site characterization indicates that the shallow groundwater underlying the site migrates slowly and due to the fine-grained nature/low permeability of the unconsolidated units underlying the former impoundments and lack of potential receptors, the impact to groundwater resources downgradient of the Site is low.

The groundwater model confirms observations made regarding groundwater flow and direction. The groundwater flow at the Site is: •

primarily to the east/southeast;

•

flow direction is consistent between the active and closed periods of the former impoundments;

•

groundwater underlying the former impoundments migrates primarily through the sand layers in the

unconsolidated units; and •

groundwater model flow direction simulations are consistent with observed groundwater flow.

Based on the results of the modeling, infiltration of precipitation through the engineered cap does not

represent a significant change in the recharge of the downgradient wells and would likely be slow to leach metals into the underlying groundwater. Additionally, the groundwater modeling results indicate that

potential groundwater influx into the former impoundments would be limited to only the northwest

corner of the impoundment area. Since groundwater contact with the impoundment material is limited, it is unlikely that leaching of metals from CCR materials is occurring via lateral groundwater movement

through the former impoundment. In addition, to date, groundwater elevations measured from

groundwater wells do not indicate that groundwater is migrating through CCR materials in the northwest

corner of the impoundment area. Therefore, the potential for COCs to migrate is primarily via vertical

leaching of the low volumes of meteoric water that have infiltrate through the engineered cap. As stated

above, the model confirmed the groundwater flow direction for the active and closed periods of the

former impoundment. Since the groundwater flow at the Site is primarily to the east, installation of

additional monitoring wells to the south of the former impoundments is unlikely to provide any significant additional analytical data that would aid in characterizing the Site.

8.3 Potential COC Migration The CSM indicates that although there are potential pathways that COCs could migrate towards receptors, many of them are incomplete. Figure 7-1 illustrates the two complete pathways for COCs to migrate to receptors from the former impoundments: •

advective shallow groundwater transport; and

•

dermal contact with impacted soil/CCR overlying or immediately adjacent to the impoundments.

Groundwater flow would transport potential COCs east towards the Little Blue River. The primary

exposure route in the groundwater flow path is the vegetated area and agricultural field directly to the east of the Facility. The exposure pathway could be completed via potential uptake of metals into

agricultural crops and ingestion of those crops. There are no nearby direct drinking water sources in the

groundwater flow path. Direct human ingestion of shallow groundwater from any future wells east of the

former impoundments as drinking water is unlikely due to the poor water quality and low capacity for supply.

Based on the calculated interstitial velocity for the groundwater, the distance to the nearest agricultural

fields, and construction date of the impoundments, potentially impacted groundwater could migrate to

the fields in 11 to 22 years. It is unknown if the agricultural products from the agricultural field are meant

for direct human consumption. The potential receptor for this field could be an animal feeding operation. In addition, it is likely that the clay material in the subsurface underlying the impoundments and likely

downgradient of the former impoundments would adsorb metals and reduce concentrations migrating offsite thereby reducing the potential impact of the COCs.

Dermal contact with impacted soil/CCR around the former impoundments, particularly by a construction

worker, is a second complete receptor pathway. Currently, there is no construction work planned for the

former impoundments in the near future; however, there is the possibility for work to occur at some time 30

in the future. This possibility is deemed remote because the area of the former impoundments is covered by an environmental lien or deed restriction preventing construction that would penetrate or disturb the cap. This pathway could be complete for an onsite non-resident worker as well. However, since the

Facility is being decommissioned, that scenario is less likely. Although this exposure pathway is complete,

dermal contact with impacted materials during construction work could be mitigated by implementing project controls.

8.4 Recommendations for Future Work The next phase of this project includes the development of a GMSAP for long-term groundwater

monitoring. The following discussion includes recommendations to be included as part of the GMSAP development and additional work that would further characterize the Site. 1.

Due to the low hydraulic conductivities calculated for the former impoundments and the

observed low recharge rates, it is recommended that passive sampling methods be considered for the long-term monitoring work. Collecting groundwater samples from the upgradient wells is

likely to be a time consuming process and it may be difficult to provide a representative, unbiased

sample utilizing standard low-flow sampling techniques.

Re-attempt slug testing of one of the upgradient wells. This would provide information to

calculate a hydraulic conductivity for the western portion of the former impoundments and gain a better understanding of the subsurface material heterogeneities and anisotropy.

9.0 References Barr, 2019. Blue Valley Coal Combustion Residuals Impoundment Site Characterization Work Plan,

Independence Power and Light Blue Valley Power Plant, Independence, Missouri. April 2019.

Bohling, G. C., Jin, W., and Butler, Jr., J. J. 2011. Kansas Geological Survey Barometric Response Function Software User’s Guide, Kansas Geological Survey Open-File Report No. 2011-10, 23 p. and Addendum.

Burns and McDonnell, 1977. City of Independence, Missouri, Blue Valley Generating Station Ash Pond

Addition and Other Improvements, May 1977.

Driscoll, F. G., 1986. Groundwater and Wells, 2nd edition. Johnson Filtration Systems, Inc., St. Paul, MN, 1089 p.

Duffield, G. M., 2007. AQTESOLV for Windows, Version 4.5 User’s Guide. Software Manual. HydroSOLVE, Inc., Reston, VA. 527 p.

Freeze, R. A. and J. A. Cherry, 1979. Groundwater, Prentice-Hall, Inc., Englewood Cliffs, New Jersey, 604p. Independence, City of, 2020. Independence, MO Zoning and City Wide Information Website, URL:

http://independence.maps.arcgis.com/apps/OnePane/basicviewer/index.html?appid=9047d96e4c634bb7 8f03019c68b0ad81 Accessed July – September, 2019

Missouri Department of Natural Resources, 2018. Geosciences Technical Resources Assessment Tool Website, URL: https://dnr.mo.gov/geology/geostrat.htm. Accessed January 2020. Missouri Department of Natural Resources, 2010. Guidance for Conducting a Detailed Hydrogeologic Site Characterization and Designing a Groundwater Monitoring Program, December 10, 2010.

Missouri Department of Natural Resources Division of Geology and Land Survey, 1997. Groundwater Resources of Missouri, Don E. Miller, 1997.

Purdue University, 2020. Primary Distinguishing Characteristics of Level III Ecoregions of the Continental United States Website, URL: https://hort.purdue.edu/newcrop/cropmap/ecoreg/descript.html#40. Accessed July – September, 2019.

Sanford, W.E. and D.L. Selnick, 2013. Estimation of Evapotranspiration across the Conterminous United States Using a Regression with Climate and Land Cover Data, Journal of the American Water Resources Association Vol 49, No. 1, February 2013.

SCS Engineers, 2017. CCR Clean Closure in New Sedimentation Pond Construction Area, June 2017. SCS Engineers, 2017. Summary Report Blue Valley Power Station Coal Combustion Residual Material Characterization Project, August 2017.

SCS Engineers, 2018. Ash Impoundment Closure Report, April 2018. University of Missouri, 2020. Missouri Climate Center Website, URL: http://climate.missouri.edu/data.php. Accessed July – September, 2019

U.S. Climate Data, 2020. Website, URL:

https://www.usclimatedata.com/climate/independence/missouri/united-states/usmo0441 Accessed July – September, 2019

US Department of Agriculture, 1984. Soil Survey of Jackson County, Missouri. September 1984.

Tables

TABLE 1-1 GROUNDWATER ANALYTICAL DATA SUMMARY

Location Date Sample Type

Parameter Effective Date Exceedance Key General Parameters Carbon, total organic Chemical Oxygen Demand Chloride Fluoride Halides, total organic Halides, total organic Hardness, as CaCO3 Nitrogen, nitrate + nitrite, as N Nitrogen, nitrate, as N Nitrogen, nitrite, as N Solids, total dissolved Sulfate, as SO4 Metals Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Chromium Chromium, hexavalent Chromium, trivalent Cobalt Copper Iron Lead Lithium Magnesium Manganese Mercury Molybdenum Nickel Selenium Silver Sodium Thallium Zinc Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Chromium, hexavalent Chromium, trivalent Cobalt Copper Iron Lead Lithium Magnesium Manganese Mercury Molybdenum Nickel Selenium Silver Sodium Thallium Zinc Radiochemical Parameters Radium 226 Radium 228

Total or Dissolved

Units

NA NA NA NA NA NA NA NA NA NA NA NA

mg/l mg/l mg/l mg/l mg/l ug/l ug/l mg/l mg/l mg/l mg/l mg/l

Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Dissolved Total Total Total Total Total Total Total Total Total Total Total Total Total Total Total Total Total Total Total Total Total Total Total Total Total Total

ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l mg/l mg/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l mg/l mg/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l

NA NA

pCi/l pCi/l

EPA Maximum Contaminant Levels 04/01/2012 Bold

10 10 1

6 10 2000 4 5 100 0.1 (14) 0.1 (14) 6 1300 TT(12) 15 40

2 100 50

6 10 2000 4 5 100 0.1 (14) 0.1 (14) 6 1300 TT(12) 15 TT(12)

15 40

2 100 50

5 (13) 5 (13)

MW-8

MW-9

MW-10

MW-11

TW-1

TW-2

TW-4

TW-5

8/08/2019

8/09/2019

9/05/2019

8/09/2019

9/05/2019

< 1.0 19.9 53.2 0.23 -< 100 471000 < 0.10 < 0.10 < 0.10 721 271

< 1.0 12.4 33.7 < 0.20 -< 100 568000 < 0.10 < 0.10 < 0.10 752 220

1.7 12.2 18.6 0.50 -< 100 493000 < 0.10 < 0.10 < 0.10 634 12.4

5.5 29.8 2.9 0.30 -< 100 246000 < 0.10 < 0.10 < 0.10 434 2.4

1.1 -48.8 < 0.20 -< 100 271000 < 0.10 < 0.10 < 0.10 467 2.0

3.5 -67.8 0.52 -< 100 198000 0.13 0.13 < 0.10 728 88.7

2.7 10.8 34.8 1.1 < 0.100 -50000 < 0.10 < 0.10 < 0.10 608 37.8

19.5 -1.8 0.36 * -< 100 78900 < 0.10 < 0.10 < 0.10 968 3.0

3.4 30.8 34.2 1.1 < 0.100 -49300 < 0.10 < 0.10 < 0.10 611 38.5

< 75.0 < 15.0 < 10.0 198 < 1.0 1570 < 5.0 < 5.0 < 0.010 < 0.010 < 5.0 < 10.0 4360 < 10.0 12.1 23800 8410 < 0.20 < 20.0 8.9 < 15.0 < 7.0 23600 < 20.0 < 50.0 112 < 15.0 < 10.0 205 < 1.0 1460 < 5.0 149000 < 5.0 < 0.010 < 0.010 < 5.0 < 10.0 4810 < 10.0 12.8 23900 8480 < 0.20 < 20.0 7.8 < 15.0 < 7.0 22000 < 20.0 < 50.0

< 75.0 < 15.0 13.2 1020 < 1.0 < 100 < 5.0 < 5.0 < 0.010 < 0.010 < 5.0 < 10.0 11900 < 10.0 18.2 33600 4390 < 0.20 < 20.0 < 5.0 < 15.0 < 7.0 11000 < 20.0 < 50.0 222 < 15.0 11.3 1010 < 1.0 < 100 < 5.0 172000 < 5.0 < 0.010 < 0.010 < 5.0 < 10.0 14300 < 10.0 19.3 33500 4330 < 0.20 < 20.0 < 5.0 < 15.0 < 7.0 11000 < 20.0 < 50.0

< 75.0 < 15.0 29.3 637 < 1.0 < 100 < 5.0 < 5.0 < 0.010 < 0.010 < 5.0 < 10.0 6780 < 10.0 < 10.0 36800 2390 < 0.20 < 20.0 < 5.0 < 15.0 < 7.0 78300 < 20.0 < 50.0 199 < 15.0 30.6 630 < 1.0 < 100 < 5.0 137000 < 5.0 < 0.010 < 0.010 < 5.0 < 10.0 7530 < 10.0 < 10.0 36400 2370 < 0.20 < 20.0 < 5.0 < 15.0 < 7.0 75100 < 20.0 < 50.0

< 75.0 < 15.0 32.8 555 < 1.0 122 < 5.0 < 5.0 < 0.010 < 0.010 < 5.0 < 10.0 21300 < 10.0 19.2 16000 817 < 0.20 < 20.0 < 5.0 < 15.0 < 7.0 63400 < 20.0 < 50.0 683 < 15.0 37.0 564 < 1.0 127 < 5.0 71900 < 5.0 < 0.010 * < 0.010 < 5.0 < 10.0 22100 < 10.0 19.7 16200 883 < 0.20 < 20.0 < 5.0 < 15.0 < 7.0 63400 < 20.0 < 50.0

< 75.0 < 15.0 < 10.0 387 < 1.0 < 100 < 5.0 < 5.0 < 0.010 -< 5.0 < 10.0 < 50.0 < 10.0 < 10.0 19500 1190 < 0.20 < 20.0 < 5.0 < 15.0 < 7.0 44700 < 20.0 < 50.0 877 < 15.0 < 10.0 402 < 1.0 < 100 < 5.0 76400 < 5.0 < 0.010 -< 5.0 < 10.0 852 < 10.0 < 10.0 19500 1210 < 0.20 < 20.0 < 5.0 < 15.0 < 7.0 44800 < 20.0 < 50.0

< 75.0 < 15.0 < 10.0 99.9 < 1.0 724 < 5.0 < 5.0 < 0.010 -< 5.0 < 10.0 < 50.0 < 10.0 32.7 13100 171 < 0.20 < 20.0 < 5.0 < 15.0 < 7.0 225000 < 20.0 < 50.0 13600 < 15.0 15.1 191 < 1.0 720 < 5.0 49600 32.0 < 0.010 -8.4 25.1 21300 11.1 62.5 18100 515 < 0.20 < 20.0 28.2 < 15.0 < 7.0 218000 < 20.0 < 50.0

< 75.0 < 15.0 < 10.0 49.4 < 1.0 1440 < 5.0 < 5.0 < 0.010 * < 0.010 < 5.0 < 10.0 < 50.0 < 10.0 11.4 4060 58.3 < 0.20 23.0 < 5.0 < 15.0 < 7.0 219000 < 20.0 < 50.0 369 < 15.0 < 10.0 59.1 < 1.0 1370 < 5.0 13300 < 5.0 < 0.010 * < 0.010 < 5.0 < 10.0 536 < 10.0 < 10.0 4070 69.6 < 0.20 23.2 < 5.0 < 15.0 < 7.0 213000 < 20.0 194

92.4 < 15.0 < 10.0 161 < 1.0 < 100 < 5.0 11.1 0.014 -< 5.0 < 10.0 < 50.0 < 10.0 447 < 50.0 < 5.0 0.37 < 20.0 < 5.0 < 15.0 < 7.0 88600 < 20.0 < 50.0 384 < 15.0 < 10.0 197 < 1.0 < 100 < 5.0 31300 11.9 0.015 -< 5.0 < 10.0 524 < 10.0 464 188 16.0 < 0.20 < 20.0 < 5.0 < 15.0 < 7.0 90600 < 20.0 55.0

< 75.0 < 15.0 < 10.0 44.6 < 1.0 1350 < 5.0 < 5.0 < 0.010 < 0.010 < 5.0 < 10.0 < 50.0 < 10.0 10.3 3770 53.8 < 0.20 22.9 < 5.0 < 15.0 < 7.0 203000 < 20.0 < 50.0 252 < 15.0 < 10.0 52.6 < 1.0 1400 < 5.0 13000 < 5.0 < 0.010 < 0.010 < 5.0 < 10.0 304 < 10.0 < 10.0 4060 60.0 < 0.20 25.1 < 5.0 < 15.0 < 7.0 215000 < 20.0 < 50.0

1.48 +/- 0.878 < 0.778

2.47 +/- 1.01 < 0.757

2.63 +/- 1.13 < 0.817

1.67 +/- 0.820 < 1.16

1.51 +/- 0.696 < 0.817

1.86 +/- 0.791 < 0.745

0.976 +/- 0.732 < 1.10

3.24 +/- 1.57 < 1.51

2.20 +/- 1.05 < 1.15

EPA Maximum Contaminant Levels 40 CFR 257.95(h)(2) 04/01/2012 Underline

15 TT(12)

MW-7 8/08/2019

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Data Footnotes and Qualifiers Barr Standard Footnotes and Qualifiers --

Not analyzed/Not available.

N FD *

Sample Type: Normal Sample Type: Field Duplicate Estimated value, QA/QC criteria not met.

NA (not applicable) indicates that a fractional portion of the sample is not part of the analytical testing or field collection procedures.

(14) (13)

Based on the criteria for chromium, total. Based on the criteria for combined radium 226 and 228.

TT(12)

Copper action level 1.3 mg/l; lead action level 0.015 mg/l.

EPA Maximum Contaminant Levels

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TABLE 4-1 SOIL ANALYTICAL DATA SUMMARY

Location

Parameter Effective Date Exceedance Key General Parameters Chloride Extractable organic halogens Fluoride Moisture Nitrogen, nitrate, as N Nitrogen, nitrite, as N pH Solids, total Sulfate, as SO4 Metals Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Chromium, hexavalent Chromium, trivalent Cobalt Copper Iron Lead Lithium Magnesium Manganese Mercury Molybdenum Nickel Selenium Silver Sodium Thallium Zinc Radiochemical Parameters Radium 226 Radium 228

BH-1

BH-2

BH-4

BH-11

Date

8/02/2019

8/04/2019

8/01/2019

8/05/2019

Depth

15 ft

25 ft

12 ft

16 ft

66 ft

20 ft

Sample Type Missouri Table 3-1 Default Target Levels 10/17/2013 Bold

mg/kg mg/kg mg/kg % mg/kg mg/kg pH units % mg/kg

< 126 < 32.7 < 25.3 22.0 < 12.6 < 12.6 6.7 76.5 < 126

< 125 < 31.9 < 25.1 21.5 < 12.5 < 12.5 7.3 78.3 < 125

< 123 < 31.5 < 24.5 20.6 < 12.3 < 12.3 6.8 79.3 < 123

< 126 < 31.5 < 25.1 19.9 < 12.6 < 12.6 6.9 79.3 < 126

< 114 < 28.5 < 22.9 13.0 < 11.4 < 11.4 8.2 87.7 < 114

< 133 < 33.1 < 26.5 24.9 < 13.3 < 13.3 8.0 75.5 < 133

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

18200 < 1.0 9.1 243 0.82 < 10.0 < 0.50 3930 20.0 < 1.31 20.0 9.4 15.3 22600 13.8 -3700 815 < 0.060 < 2.0 21.7 < 1.5 < 0.70 75.0 < 2.0 67.9

20100 < 1.1 6.4 135 0.92 < 11.0 < 0.55 4590 25.5 < 1.28 25.5 11.5 17.6 20800 13.2 -4030 282 < 0.049 < 2.2 25.0 < 1.6 < 0.77 87.0 < 2.2 63.5

17600 < 1.2 12.2 309 0.93 < 11.7 < 0.58 3550 19.5 < 1.26 19.5 12.3 16.1 25400 17.1 -3470 709 < 0.043 < 2.3 20.4 < 1.7 < 0.82 82.9 < 2.3 60.7

21800 < 1.2 6.8 224 0.88 < 12.0 < 0.60 2980 22.2 < 1.26 22.2 9.6 14.9 21000 13.0 -3700 704 < 0.055 < 2.4 20.8 < 1.8 < 0.84 110 < 2.4 54.4

10700 < 0.88 6.5 62.9 0.72 < 8.8 < 0.44 15900 18.6 < 1.14 18.6 15.8 15.0 33200 5.2 -6250 1070 < 0.052 < 1.8 22.6 < 1.3 < 0.62 377 < 1.8 32.0

13200 < 1.2 14.4 346 0.90 < 11.9 < 0.59 3510 15.8 < 1.32 15.8 9.5 18.0 25500 14.6 9.1 3080 1270 < 0.042 < 2.4 25.7 < 1.8 < 0.83 368 < 2.4 70.7

1.758 +/- 0.334 1.732 +/- 0.522

1.747 +/- 0.354 1.531 +/- 0.507

1.248 +/- 0.376 1.722 +/- 0.435

1.596 +/- 0.316 1.780 +/- 0.456

4.337 +/- 0.763 1.559 +/- 0.432

1.510 +/- 0.332 1.687 +/- 0.440

Units

pCi/g pCi/g

3.89 SDC 2040 GWP

9.31 GWP

0.00159 GWP 74600 SDC

3.74 GWP

6.27 GWP

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Data Footnotes and Qualifiers Barr Standard Footnotes and Qualifiers N

Sample Type: Normal

Missouri Table 3-1 Default Target Levels GWP

Protection of domestic groundwater use pathway

SDC

Direct contact pathway

Page 2 of 2 2/21/2020 \\barr.com\projects\Jeff City\25 MO\49\25491019 Groundwater Monitoring Program\WorkFiles\Characterization Report\Tables\Table 4-1 Soil Analytical Data Summary.xlsx

Table 4-2 Waste Analytical Data Summary Location IPL TCLP 1 Date Sample Type Parameter Units TCLP Metals Arsenic mg/l Barium mg/l Cadmium mg/l Chromium mg/l Lead mg/l Mercury mg/l Selenium mg/l Silver mg/l

WC-2

7/29/2019

8/09/2019

< 0.50 < 2.5 < 0.050 < 0.10 < 0.50 < 0.0020 < 0.50 < 0.10

TLCP: Toxicity Leaching Characteristic Procedure

Page 1 of 2 2/21/2020 \\barr.com\projects\Jeff City\25 MO\49\25491019 Groundwater Monitoring Program\WorkFiles\Characterization Report\Tables\Table 4-2 Waste Characterization Data Summary.xlsx

Data Footnotes and Qualifiers Barr Standard Footnotes and Qualifiers N

Sample Type: Normal

Page 2 of 2 2/21/2020 \\barr.com\projects\Jeff City\25 MO\49\25491019 Groundwater Monitoring Program\WorkFiles\Characterization Report\Tables\Table 4-2 Waste Characterization Data Summary.xlsx

TABLE 4-3 MONITORING WELL CONSTRUCTION SUMMARY Well ID

Workplan ID

Installation Date

Well Type

Surface

Elevation (Feet)

Riser

Elevation (Feet)

Riser

Height

(Feet)

Borehole

Diameter (Inches)

Riser Pipe Diameter (Inches)

MW-1

B-7

6/26/2019

Permanent

188.86

191.34

29.75

8.25

MW-2

B-8

6/25/2019

Permanent

186.76

189.26

30.00

8.25

MW-3

B-9

6/25/2019

Permanent

181.87

184.35

29.75

8.25

MW-4

B-10

6/25/2019

Permanent

183.30

184.92

19.50

8.25

MW-5

B-11

8/5/2019

Permanent

185.18

187.41

26.75

MW-6

B-1

8/2/2019

Permanent

204.06

205.91

22.25

MW-7

B-2

8/4/2019

Permanent

202.26

204.11

22.25

MW-8

B-4

8/2/2019

Permanent

204.53

206.36

TW-3

B-6

7/31/2019

Abandoned

Notes: (1) Elevations are based on an arbitrary fixed survey point of 200 feet. (2) Well decomissioned

194.51

196.41

22.75

6 (0-116 ft bgs) 5 (116-131.5 ft bgs)

1.5

Riser Pipe Material

Schedule 40 PVC Schedule 40 PVC Schedule 40 PVC Schedule 40 PVC Schedule 40 PVC Schedule 40 PVC Schedule 40 PVC

Schedule 40 PVC

Schedule 80 PVC

Screened Interval (Feet) 1

Top

Bottom

173.86

153.86

171.76

151.76

166.87

146.87

171.30

141.30

139.18

129.18

138.06

133.06

122.26

112.26

138.53

128.53

83.18

73.18

TABLE 4-4 WATER LEVEL SUMMARY Well Number Workplan Number Surface Elevation Riser Elevation

MW-1 B-7

Depth to 1 Water 7/31/2019 8.27 8/3/2019 8/4/2019 8/5/2019 8/6/2019 8/7/2019 8/8/2019 7.90 8/9/2019 8/23/2019 9/5/2019 7.72 9/12/2019 7.80 9/27/2019 7.47 10/4/2019 6.94 10/11/2019 6.80 10/18/2019 7.22 10/25/2019 7.24 11/1/2019 7.06 11/15/2019 7.37 11/22/2019 7.12 12/6/2019 7.11 12/13/2019 7.15 12/20/2019 7.01 12/27/2019 7.18 1/3/2019 6.87 1/9/2019 6.90 Riser Heights (in) 29.75 Reading

MW-1 B-7 188.86 191.34 Groundwater Elevation 183.07

183.44

183.62 183.54 183.87 184.40 184.54 184.12 184.10 184.28 183.97 184.22 184.23 184.19 184.33 184.16 184.47 184.44

MW-2 B-8

Depth to 1 Water 5.89

MW-2 B-8 186.76 189.26 Groundwater Elevation 183.37

6.05

183.21

7.00

5.62 5.61 5.45 5.12 5.09 5.20 5.25 5.34 5.35 5.26 5.22 5.20 5.22 5.29 5.04 5.00 30.00

182.26

183.64 183.65 183.81 184.14 184.17 184.06 184.01 183.92 183.91 184.00 184.04 184.06 184.04 183.97 184.22 184.26

NM* = Due to slug test being performed at monitoring well 1 : Measured from Riser

MW-3 B-9

Depth to 1 Water 6.36

6.75

5.68 5.59 5.32 5.09 4.94 5.46 5.33 5.34 5.35 5.03 5.00 5.21 5.31 5.01 4.89 5.05 29.75

MW-3 B-9 181.87 184.35 Groundwater Elevation 177.99

177.60

178.67 178.76 179.03 179.26 179.41 178.89 179.02 179.01 179.00 179.32 179.35 179.14 179.04 179.34 179.46 179.30

MW-4 B-10

Depth to 1 Water 5.14

6.15

5.29 5.39 4.69 4.51 4.29 4.20 4.24 4.12 4.20 4.19 3.90 3.84 3.89 3.80 3.59 3.57 19.50

MW-4 B-10 183.30 184.92 Groundwater Elevation 179.78

MW-5 B-11

Depth to 1 Water

MW-5 B-11 185.18 187.41 Groundwater Elevation

7.01

180.40

10.02

177.39

9.66 9.64 9.51 9.12 9.00 9.04 9.18 9.53 9.65 9.44 9.31 9.45 9.42 9.55 9.26 9.20 26.75

177.75 177.77 177.90 178.29 178.41 178.37 178.23 177.88 177.76 177.97 178.10 177.96 177.99 177.86 178.15 178.21

MW-6 B-1

Depth to 1 Water 45.35 8.30 19.29

MW-6 B-1 204.06 205.91 Groundwater Elevation 160.56 197.61 186.62

39.69 53.71

166.22 152.20

29.91 23.59 22.80 22.04 21.25 21.65 21.45 21.38 21.32 21.31 21.41 21.48 21.45 21.47 21.45 21.30 21.25 22.25

176.00 182.32 183.11 183.87 184.66 184.26 184.46 184.53 184.59 184.60 184.50 184.43 184.46 184.44 184.46 184.61 184.66

MW-7 B-2

Depth to 1 Water

MW-7 B-2 202.26 204.11 Groundwater Elevation

16.25 85.24 86.15

187.86 118.87 117.96

37.61 43.98 38.88 NM* 22.68 20.13 18.62 17.92 17.38 17.00 16.80 16.69 16.75 16.71 16.68 16.61 16.60 22.25

166.50 160.13 165.23

TW-3 B-6

Depth to 1 Water 52.30 108.42 105.50 105.50 104.92

178.77

179.63 179.53 180.23 180.41 180.63 180.72 180.68 180.80 180.72 180.73 181.02 181.08 181.03 181.12 181.33 181.35

181.43 183.98 185.49 186.19 186.73 187.11 187.31 187.42 187.36 187.40 187.43 187.50 187.51

77.27 70.70 88.78 67.53 58.28 51.01 45.23 40.54 36.87 32.05 30.21 27.64 26.54 25.48 24.78 24.21 23.30 22.75

TW-3 B-6 194.51 196.41 Groundwater Elevation 144.11 87.99 90.91 90.91 91.49 196.41 196.41 196.41 119.14 125.71 107.63 128.88 138.13 145.40 151.18 155.87 159.54 164.36 166.20 168.77 169.87 170.93 171.63 172.20 173.11

MW-8 B-4

Depth to 1 Water

MW-8 B-4 204.53 206.36 Groundwater Elevation

5.28

201.08

85.00

121.36

68.90 60.24 55.32 47.73 44.20 41.31 38.13 35.50 33.51 20.24 20.15 19.90 20.25 19.96 19.94 19.86 19.70 22.00

137.46 146.12 151.04 158.63 162.16 165.05 168.23 170.86 172.85 186.12 186.21 186.46 186.11 186.40 186.42 186.50 186.66

TABLE 5-1 GROUNDWATER SAMPLING CONSTITUENT LIST

Metals (Total and Dissolved) Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Chromium III Chromium VI Cobalt Copper Iron Lead Lithium Magnesium Manganese Mercury Molybdenum Nickel Selenium Silver Sodium Thallium Zinc

Field Parameters Oxidation-Reduction Potential (ORP) pH Specific Conductance Other Calcium Chemical Oxygen Demand (COD) Chloride Fluoride Hardness as CaCO3 Nitrate+Nitrite Radium 226 Radium 228 Sulfate as SO4 Total Dissolved Solids (TDS) Total Halogens (TOX) Total Organic Carbon (TOC)

TABLE 5-2 AQTESOLV TEST RESULTS SUMMARY Project Information

Well

Borehole

MW-1 MW-1 MW-2 MW-2 MW-2 MW-3 MW-3 MW-4 MW-4

BH-7 BH-7 BH-8 BH-8 BH-8 BH-9 BH-9 BH-10 BH-10

Slug Type and File Name*

Aquifer Data

Test Date

Sat. Thickness

Anisotrophy Ratio

Well Data Aquifer material

ft Kz/Kr MW 7 Slug In 1645_2019-08-05_16-11-21-080 8/3/2019 5 1 fine sand MW 7 Slug Out 1614_2019-08-05_16-10-36-458 8/3/2019 5 1 fine sand MW 8 Slug In 1615_2019-08-05_16-39-11-735 8/5/2019 15 1 silt MW 8 Slug Out 0811_2019-08-06_08-43-22-853 8/6/2019 15 1 silt MW 8 Slug Out 1825_2019-08-06_18-53-47-311 8/6/2019 15 1 silt MW 9 Slug In 1152_2019-08-06_12-33-23-305 8/6/2019 10 1 sand MW 9 Slug Out 1234_2019-08-06_13-12-43-858 8/6/2019 10 1 sand MW 10 Slug In 1520_2019-08-06_15-56-00-065 8/6/2019 11.5 1 silty clay, clay MW 10 Slug Out 1558_2019-08-06_1643-59-196 8/6/2019 11.5 1 silty clay, clay * AMS2 reviewed and clipped most data series (front-end data) to produce more accurate curves in AQTESOLV

Solution

Initial Displacement

Total Penetration Depth (TOR)

Casing Radius

Depth to Water (TOR)

Static Water Column Height

Screen Length

ft 0.848 1.009 0.949 0.881 1.054 1.041 0.955 0.904 1.614

ft 36.6 36.6 37.25 37.25 37.25 35 35 45 45

ft 0.083 0.083 0.083 0.083 0.083 0.083 0.083 0.083 0.083

ft 25.14 25.2 22.05 22.16 22.09 21.256 21.256 33.45 33.451

ft 11.46 11.4 15.2 15.09 15.16 13.744 13.744 11.55 11.549

ft 17.5 17.5 20 20 20 20 20 30 30

Depth to Top of Well Screen ft 19.1 19.1 17.25 17.25 17.25 15 15 15 15

Well Radius ft 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

Gravel Pack Porosity 0 0 0 0 0 0 0 0 0

Aquifer Model Confined Confined Unconfined Unconfined Unconfined Confined Confined Unconfined Unconfined Average

sand silt/clay

Solution Method

K ft/day 3.37E-01 3.08E-01 4.54E-01 3.88E-01 3.17E-01 2.76E-01 1.93E-01 1.79E-01 1.71E-01 2.84E-01

log of geomean -1.0807945 -1.075376

cm/sec 1.2E-04 1.1E-04 1.6E-04 1.4E-04 1.1E-04 9.7E-05 6.8E-05 6.3E-05 6.0E-05 1.00E-04

Bouwer-Rice Bouwer-Rice Bouwer-Rice Bouwer-Rice Bouwer-Rice Bouwer-Rice Bouwer-Rice Bouwer-Rice Bouwer-Rice

y0 ft 0.5807 0.6519 0.6733 0.5704 0.6457 0.7128 0.5509 0.907 0.9351 6.64E-01

Figures

Ja c ks o n C o u n t y

£ ¤ Un

HUC8: Lower Missouri-Crooked 10300101

na m ed b Tr i

HUC12: Little Blue River 103001010208

ar ut y

Perennial Stream or River

Li ttl e

Ri v

Intermittent Stream, River, or Wash

es t

Little B l u e Riv e r

HUC12 Watershed Boundary

k ee Cr

ri ai Pr

Property Boundary

Wetlands (NWI) Freshwater Emergent Wetland

Barr Footer: ArcGIS 10.7.1, 2020-04-10 09:33 File: I:\Projects\25\49\1019\Maps\Reports\Characterization_Report\Figure 1-1 Site Location.mxd User: MRQ

Freshwater Forested/ Shrub Wetland Freshwater Pond Other

S pring Branch

Riverine Cree k

HUC12: Burr Oak Creek-Little Blue River 103001010207

reek kC a O Bur r

; ! N

1,000

2,000

3,000

Feet

FIGURE 1-1

Barr Footer: ArcGIS 10.7.1, 2020-05-04 11:32 File: I:\Projects\25\49\1019\Maps\Reports\Characterization_Report\Figure 2-1 Site Layout.mxd User: MRQ

4TH ST

Earley Machine LLC

POWELL RD

Continental Manufacturing

Un i o n Pa

Bottom Ash Impoundment (Closed)

Independence School District Transportation Complex

Clos ed

South Fly Ash Impoundment (Closed)

HEMCO Corporation

cific Rail ro

! ?

LITTLE BLUE PKWY

North Fly Ash Impoundment (Closed)

Bottom Ash Impoundment (Clean Closure and Converted to a Sedimentation Basin)

! ?

Midwest Directional Services

TRUMAN RD

POWELL RD

RANSON PL

RANSON ST

Watco Manufacturing Co.

T 13TH

Barbour Concrete Company

Metal Sale Manufacturing Corporation

Property Boundary

; ! N

Closed Railroad 0

Feet

450

Note: Property boundary obtained from Jackson County parcel dataset, MO GIS Department. Imagery: Nearmap, February 2020

SITE LAYOUT Independence Power & Light Independence, Missouri

FIGURE 2-1

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4TH ST

BH-4/MW-08

! ?

BH-7/MW-01

BH-1/MW-06

! >

! ?

BH-8/MW-02 LITTLE BLUE PKWY

! >

BH-9/MW-03

! > BH-2/MW-07

! ?

BH-10/MW-04

cific

Rail ro

! >

on P a

BH-6/TW-03

POWELL RD

Clos ed

Un i

# *

BH-11/MW-05

! >

POWELL RD

TRUMAN RD

Note: Property boundary obtained from Jackson County parcel dataset, MO GIS Department.

Imagery: Nearmap, February 2020

# *

Abandoned Well

! > ! ?

Downgradient Monitoring Well Upgradient Monitoring Well Property Boundary

Closed Railroad

; ! N

175

350

Feet

525

MONITORING WELL LOCATIONS Independence Power & Light Independence, Missouri FIGURE 2-2

Barr Footer: ArcGIS 10.7.1, 2020-04-10 09:42 File: I:\Projects\25\49\1019\Maps\Reports\Characterization_Report\Figure 3-1 Land Use.mxd User: MRQ

Cl os ed

io n

cif ic Ra i

lro

Unn am ta bu Tri ed ry L to it t

u e R iver

ed os Cl

i Un

c i fi ac

i Ra

lro

! . ?

Sp ri n

gB ran ch Cr George Owens Nature Park ee k

Bu r

Li t tl e Blu e

Riv er

ek Cre ak rO

Little Blue Park

! ´ Closed Railroad

NLCD 2016 Land Cover

Barren Land (Rock/Sand/Clay)

; ! N

1,500 Feet

Cultivated Crop

Perennial Stream or River

Open Water

Deciduous Forest

Woody Wetlands

Intermittent Stream, River, or Wash

Developed, Open Space

Mixed Forest

Emergent Herbaceous Wetlands

Developed, Low Intensity

Shrub/Scrub

Water Wells

Developed, Medium Intensity

Grassland/Herbaceous

Devleoped, High Intensity

Pasture/Hay

! ? Domestic ! ´ Irrigation

Property Boundary

Note: Property boundary obtained from Jackson County parcel dataset, MO GIS Department. Imagery: Nearmap, July 2019

! . Unknown

LAND USE Independence Power & Light Independence, Missouri

FIGURE 3-1

890

900

Barr Footer: ArcGIS 10.7.1, 2020-04-10 09:27 File: I:\Projects\25\49\1019\Maps\Reports\Characterization_Report\Figure 3-2 Topography.mxd User: MRQ

0 86

860

4TH ST

870

82 0

0 79 0 78

North Fly Ash Impoundment (Closed)

76 5

770

750

830

84 0

765

80 0

0 81

5 76

860 850

5 77 0 77

5 77

765

75 0

770

880

755

5 76

755

760

755

760

ad cific Rail ro Un i o n Pa

760

Clos ed

765

5 76

765

0 76

South Fly Ash Impoundment (Closed)

760

Bottom Ash Impoundment (Closed)

765

760

765

770

77 0

765

770

775

5 76 770

POWE LL RD

Bottom Ash Impoundment (Clean Closure and Converted to a Sedimentation Basin)

760

765

760

LITTLE BLUE PKWY

760

75 0

765

760

780

78 0

770 780

770

780

750

POWE LL RD

0 75

760

TRUM AN RD

750

Note: Property boundary obtained from Jackson County parcel dataset, MO GIS Department. Imagery: Nearmap, February 2020

Closed Railroad

Existing Ground Surface

Landfill Surface

Property Boundary

Major Contour (10 ft)

HUC12 Watershed Boundary

Minor Contour (2 ft)

; ! N

250

Feet

500

TOPOGRAPHY Independence Power & Light Independence, Missouri

FIGURE 3-2

Barr Footer: ArcGIS 10.7.1, 2020-05-04 10:38 File: I:\Projects\25\49\1019\Maps\Reports\Characterization_Report\Figure 4-1 Cross Section Location.mxd User: MRQ

4TH ST

BH-4/MW-08

! ?

BH-7/MW-01

BH-1/MW-06

! >

! ?

C-C

' BH-8/MW-02 LITTLE BLUE PKWY

! >

BH-9/MW-03

! >

B-B'

BH-2/MW-07

A-A

! ?

BH-10/MW-04

cific

Rail ro

! >

on P a

BH-6/TW-03

POWELL RD

Clos ed

Un i

# *

BH-11/MW-05

! >

POWELL RD

TRUMAN RD

Note: Property boundary obtained from Jackson County parcel dataset, MO GIS Department.

Imagery: Nearmap, February 2020

# *

Abandoned Well

Property Boundary

! > ! ?

Downgradient Monitoring Well

Closed Railroad

Upgradient Monitoring Well

Cross Section Location

; ! N

175

350

Feet

525

CROSS SECTION LOCATIONS Independence Power & Light Independence, Missouri FIGURE 4-1

A North

A’ South

MW-03 B - B’ Instersection

MW-05

760

770

MW-04

MW-02

770

MW-01

Railway

BALAST

Elevation, Feet (MSL)

\\barr.com\projects\Jeff City\25 MO\49\25491019 Groundwater Monitoring Program\WorkFiles\Figures\Cross Sections\Support\Cross Section A-A'_v4.pdf

750

FILL LEAN CLAY WITH GRAVEL

LEAN CLAY

740

SILTY CLAY/ CLAYEY SILT

730

760

750

740

730

SILT 720

710

720

POORLY GRADED SAND

FAT CLAY

700

SILT

710

700

LEGEND Geologic Contact Inferred Geologic Contact

200

Approximate Horizontal Scale in Feet 10X Vertical Exaggeration

Approximate Water table Monitoring Well Screen Monitoring Well

Figure 4-2 GEOLOGIC CROSS SECTION A-A' IPL Blue Valley Site Characterization

B’ East MW-07

B West 780

780

MW-03 A-A’ Intersection

TOPSOIL

765

Bottom Ash Impoundment

Elevation, Feet (MSL)

\\barr.com\projects\Jeff City\25 MO\49\25491019 Groundwater Monitoring Program\WorkFiles\Figures\Cross Sections\Support\Cross Section B-B'_v3.pdf

750

South Fly Ash Impoundment

765

750

SILTY CLAY/ CLAYEY SILT

LEAN CLAY

735

POORLY GRADED SAND

720

SILT

720

705

COAL SILTSTONE 690

690

COAL

LEGEND Geologic Contact Inferred Geologic Contact

150

Approximate Horizontal Scale in Feet 10X Vertical Exaggeration

Approximate Water table Monitoring Well Screen Monitoring Well

Figure 4-3 GEOLOGIC CROSS SECTION B-B' IPL Blue Valley Site Characterization

C West

780

MW-06

780

C’ East

SILT

TOPSOIL 770

MW-02 A-A’ Intersection

770

Elevation, Feet (MSL)

\\barr.com\projects\Jeff City\25 MO\49\25491019 Groundwater Monitoring Program\WorkFiles\Figures\Cross Sections\Support\Cross Section C-C’_v2.pdf

760

SILTY CLAY/ CLAYEY SILT

750

760

FILL

750

SILTSTONE

740

SHALE WITH SILT 730

730

COAL LIMESTONE AND SHALE SILT

720

INTERBEDDED LIMESTONE AND SHALE WITH OIL 710

710

LEGEND Geologic Contact Inferred Geologic Contact

100

Approximate Horizontal Scale in Feet 10X Vertical Exaggeration

Approximate Water table Monitoring Well Screen Monitoring Well

Figure 4-4 GEOLOGIC CROSS SECTION C-C' IPL Blue Valley Site Characterization

Barr Footer: ArcGIS 10.7.1, 2020-05-04 11:06 File: I:\Projects\25\49\1019\Maps\Reports\Characterization_Report\Figure 4-5 Groundwater Contours January 2020.mxd User: MRQ

4TH ST

MW-08 186.66

! ?

MW-01 184.44

MW-06 184.66

! >

! ?

MW-02 184.26 LITTLE BLUE PKWY

! >

MW-03 179.3

! >

MW-07 187.51

! ?

MW-04 181.35

187

Un i

on P a

cific

Rail ro

! >

Downgradient Agricultural Field

POWELL RD

Clos ed

MW-05 178.21

! >

POWELL RD

TRUMAN RD

Note: Property boundary obtained from Jackson County parcel dataset, MO GIS Department.

Imagery: Nearmap, February 2020

! > ! ?

Downgradient Monitoring Well Upgradient Monitoring Well Property Boundary Closed Railroad

Groundwater Contour (dashed where inferred)

" Groundwater Flow Direction Note: * Not contoured

; ! N

175

Feet

350

525

GROUNDWATER CONTOURS JANUARY 2020 Independence Power & Light Independence, Missouri FIGURE 4-5

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4TH ST

Sample TW-4 Dissolved Lithium: 447 µg/L Total Lithium: 464 µg/L

! ?

Sample TW-1 Total Arsenic: 15.1 µg/L Total Cobalt: 8.4 µg/L Total Lithium: 62.5 µg/L

! ?

MW-08

MW-01

MW-06

! >

MW-02

Sample MW-2 Dissolved Arsenic: 13.2 µg/L Total Arsenic: 11.3 µg/L

LITTLE BLUE PKWY

! >

MW-03

! >

! ?

MW-07

Sample MW-3 Dissolved Arsenic: 29.3 µg/L Total Arsenic: 30.6 µg/L

MW-04

! >

TW-03

POWELL RD

# *

Sample MW-4 Dissolved Arsenic: 32.8 µg/L Total Arsenic: 37.0 µg/L

ed os Cl

P ion n U

a ro ai l R ific ac

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MW-05

POWELL RD

TRUMAN RD

Note: Property boundary obtained from Jackson County parcel dataset, MO GIS Department.

Imagery: Nearmap, February 2020

# *

Abandoned Well

Property Boundary

! > ! ?

Downgradient Monitoring Well

Closed Railroad

Upgradient Monitoring Well

Maximum Containment Levels Dissolved Arsenic: 10 µg/L Total Arsenic: 10 µg/L Total Cobalt: 6 µg/L Dissolved Lithium: 40 µg/L Total Lithium: 40 µg/L

; ! N

175

350

Feet

525

GROUNDWATER CONCENTRATIONS Independence Power & Light Independence, Missouri FIGURE 5-1

nc h

Approximate Topographic Divide (No Flow Boundary)

La z

£ ¤

103001010306 Rush Creek-Missouri River

CHARLTON RD

JOHNSON RD

FERGUSON SPR RD

POWELL RD

Lit tl e

NHD Flowlines (USGS) Artificial Path 1 Intermittent Stream Perennial Stream

Note: 1 Flow path where no obvious channel is present or the channel has been modified by man

BLY RD

a rkw Pa y

n io

lro

i re tF es W Pr

ed os Cl

ic cif a P

i Ra

ai rie k ee

BLY RD

SUE ELLEN AVE

e Blu

South Impoundment

tle Lit

North Impoundment

Property Boundary

103001010208 Little Blue River

SALISBURY RD

Closed Railroad

e ue R i v

BUNDSCHU RD

291

Active Railroad HUC12 Watershed Boundary (USGS)

£ ¤

LEVEE RD

TRUMAN RD

; ! N

MINTON RD

SWO P

HOL KE RD

Bu r r O

103001010207 Burr Oak Creek-Little Blue River

CRENSHAW RD

Br a nc h

E DR

Spr i ng

r ee

Barr Footer: ArcGIS 10.7.1, 2020-02-04 15:08 File: I:\Projects\25\49\1019\Maps\Reports\Characterization_Report\Figure 6-1 Domain of Groundwater Flow Model and Boundary Condition.mxd User: MRQ

General Head Boundary

103001010601 Headwaters Fire Prairie Creek

1,250

2,500

3,750

Feet

NECESSARY RD

DOMAIN OF GROUNDWATER FLOW MODEL AND BOUNDARY CONDITION City of Independance, MO Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community

FIGURE 6-1

ra nc h

Barr Footer: ArcGIS 10.7.1, 2020-02-04 15:03 File: I:\Projects\25\49\1019\Maps\Reports\Characterization_Report\Figure 7-1 Downgradient Receptor Map.mxd User: MRQ

La z

£ ¤ 24

£ ¤ Cl os ed

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00159884 00159885

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" )

00159887

00159889 00159890 00161446

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00161448

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oa ilr a R

io n

cif ic

Ra i

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00002089

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00002901

4TH ST

BLY RD

POWELL RD

Downgradient Agricultural Field

POWELL RD

g rin Sp

nch Bra

TRUMA N RD

le Litt

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00332420

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kC r eek

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Note: 1 Wells downloaded from Missouri DNR's GeoSTRAT on 2/3/2020 2 Flow path where no obvious channel is present or the channel has been modified by man

Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community

Property Boundary NHD Flowlines (USGS) Closed Railroad

Wells 1

" ) ! .

Water Well

Monitoring Well

Artificial Path

Intermittent Stream Perennial Stream

Wetlands (NWI) Freshwater Emergent Wetland

Freshwater Forested/Shrub Wetland

1,000

2,000

Feet

Freshwater Pond Riverine

; !

" )

3,000

Parcel data obtained from Jackson County, MO GIS Department

DOWNGRADIENT RECEPTOR MAP Independence Power & Light Independence, Missouri FIGURE 7-1

PRIMARY RELEASE MECHANISM

PRIMARY SOURCES

SECONDARY SOURCES

SECONDARY RELEASE MECHANISM

EXPOSURE MEDIA

RECEPTOR

Exposure Route

Onsite NonResident Vapor

Offsite Resident Vapor

Onsite Construction Worker Vapor

Offsite Construction Worker Vapor

Onsite NonResident Groundwater

Offsite Resident Groundwater

Onsite Construction Worker Subsurface Soil

Offsite Construction Worker Subsurface Soil

Onsite NonResident Subsurface Soil

Offsite Resident Subsurface Soil

Onsite Construction Worker Subsurface Soil

Offsite Construction Worker Subsurface Soil

Onsite NonResident Surface Soil

Offsite Resident Surface Soil

Onsite Construction Worker Surface Soil

Offsite Construction Worker Surface Soil

Inhalation

Exposure Route Groundwater Ingestion Mobilization and Migration

CCR Impoundments

Dermal

Exposure Route

Infiltration and Leaching Infiltration and Leaching

Groundwater/ Surface Water

Ingestion Inhalation Dermal Exposure Route

Soils

Ingestion Inhalation – Outdoor Volatiles

Indicates a complete pathway Dermal Black Lines are direct exposure routes. Dashed black lines are indirect exposure routes.

Figure 7-2 Conceptual Site Model Independence Power & Light Blue Valley Facility

Appendix A Field Notes

Appendix B Boring Logs and Construction Diagrams

LOG OF BORING MW-01

Barr Engineering Company 1001 Diamond Ridge, Suite 1100 Jefferson City, MO 65109 Telephone: 573-638-5000

U S C S

MLCL MLCL

LITHOLOGIC DESCRIPTION

WELL OR PIEZOMETER CONSTRUCTION DETAIL

CLAYEY SILT (ML-CL): with little fine sand; red brown; dry to moist; stiff; low toughness; with some organics. CLAYEY SILT (ML-CL): red brown; dry to moist; stiff.

Above grade completion with 4" square protective casing and cement pad.

CLAYEY SILT (ML-CL): soft to stiff; dark gray; dry to moist.

30" riser stickup ags, 2" Nominal Schedule 40 PVC

Elevation, feet

Surface Elevation: 188.9 ft IPL Blue Valley Site Characterization 25491019 Drilling Method: Direct Push/Hollow Stem Auger Independence, MO Sampling Method: Grab N 1,067,807.3 ft E 2,839,863.1 ft NAD83 StatePlane Missouri West FIPS 2403 (US Feet) Completion Depth: 35.0 ft Graphic Log

Sample No.

Sample Type & Recovery

Depth, feet

Project: Project No.: Location: Coordinates: Datum:

SHEET 1 OF 1

185

5 MLCL

2 - 8': 3/8" Bentonite Chip Seal

180 10 M:\GINT\PROJECTS\25491019_IPL BLUE RIVER WELL INSTALLATIONS - COPY.GPJ BARRLIBRARY.GLB ENVIRO LOG BARR TEMPLATE.GDT

CLML MLCL

CLML

SILTY CLAY (CL-ML): dark gray; dry to moist; soft. 10.6 - 11.2': very soft. 11.7 - 12': very soft. CLAYEY SILT (ML-CL): with little fine gravel; medium red; dry to moist; stiff.

175 SILTY CLAY (CL-ML): dark gray; moist; soft to very soft; occasional gravel clasts. CLAYEY SILT (ML-CL): with trace gravel; medium red; moist; soft.

MLCL

20 CLML

170 SILTY CLAY (CL-ML): dark gray; moist; very soft. CLAYEY SILT (ML-CL): with little gravel; medium red; dry to moist; soft.

8 - 35': Red Flint Sand Filter

MLCL

25 CLML MLCL ML

165 SILTY CLAY (CL-ML): dark gray; wet; very soft.

15 - 35': 2" Nominal Schedule 40 PVC Screen, 10-slot

CLAYEY SILT (ML-CL): with little gravel; medium red; moist; soft. SILT (ML): with some sand and trace gravel; medium red transitioning to green; moist; stiff.

160

POORLY GRADED SAND (SP): fine grained; green-gray; dry to moist; non-cohesive.

30 SP

155 35

End of boring 35.0 feet 6-26-19: Sampling stopped at 30'. HSA down to 35', no noticeable change in material from cuttings

150 40 Date Boring Started: Date Boring Completed: Logged By: Drilling Contractor: Drill Rig:

6/24/19 6/26/19 RDH3 Razek Geoprobe

Remarks: Workplan B-7 Water 4.21' below top of riser

Additional data may have been collected in the field which is not included on this log.

LOG OF BORING MW-02

Barr Engineering Company 1001 Diamond Ridge, Suite 1100 Jefferson City, MO 65109 Telephone: 573-638-5000

U S C S

LITHOLOGIC DESCRIPTION

CLAYEY SILT (ML-CL): dark gray, some medium red areas; dry to moist; stiff; organic matter at surface.

WELL OR PIEZOMETER CONSTRUCTION DETAIL

Above grade completion with 4" square protective casing and cement pad.

Elevation, feet

Surface Elevation: 186.8 ft IPL Blue Valley Site Characterization 25491019 Drilling Method: Direct Push/Hollow Stem Auger Independence, MO Sampling Method: Grab N 1,067,411.4 ft E 2,839,740.3 ft NAD83 StatePlane Missouri West FIPS 2403 (US Feet) Completion Depth: 35.0 ft Graphic Log

Sample No.

Sample Type & Recovery

Depth, feet

Project: Project No.: Location: Coordinates: Datum:

SHEET 1 OF 1

185

30" riser stickup ags, 2" Nominal Schedule 40 PVC

MLCL 5.9 - 8.75': occasional soft spots, decrease in silt content.

180 2 - 13': 3/8" Bentonite Chip Seal

M:\GINT\PROJECTS\25491019_IPL BLUE RIVER WELL INSTALLATIONS - COPY.GPJ BARRLIBRARY.GLB ENVIRO LOG BARR TEMPLATE.GDT

LEAN CLAY (CL): with little silt; dark gray; dry to moist; soft.

MLCL

CLAYEY SILT (ML-CL): dark gray; moist; stiff; with occasional soft spots.

SILT (ML): with trace sand and clay; dark gray; moist; soft. SILT (ML): with little clay; dark gray-green; moist; soft.

175

MLCL

CLAYEY SILT (ML-CL): dark gray; moist to wet; very soft. SILT (ML): with little clay and little fine sand; dark green-gray; moist; soft.

170

SILT (ML): with little fine sand; dark gray; wet to saturated; very soft. ML

13 - 35': Red Flint Sand Filter

165

From 21.6': soft. SILT (ML): with some clay; dark gray-green; moist.

15 - 35': 2" Nominal Schedule 40 PVC Screen, 10-slot

160

30 155

End of boring 35.0 feet 6-25-19: Sampling stopped at 25'. HSA down to 35', no noticeable change in material from cuttings

150

40 Date Boring Started: Date Boring Completed: Logged By: Drilling Contractor: Drill Rig:

6/24/19 6/25/19 RDH3 Razek Geoprobe

Remarks: Workplan B-8 Water 3.03' below top of riser

Additional data may have been collected in the field which is not included on this log.

LOG OF BORING MW-03

Barr Engineering Company 1001 Diamond Ridge, Suite 1100 Jefferson City, MO 65109 Telephone: 573-638-5000

U S C S

MLCL

LITHOLOGIC DESCRIPTION

CLAYEY SILT (ML-CL): red-brown; dry to moist; some vegetation; low dry strength. CLAYEY SILT (ML-CL): dark gray; moist; stiff. 1.4': color change to red-brown.

Above grade completion with 4" square protective casing and cement pad.

3.75': return to dark gray color, soft.

30" riser stickup ags, 2" Nominal Schedule 40 PVC

MLCL

SP MLCL

WELL OR PIEZOMETER CONSTRUCTION DETAIL

POORLY GRADED SAND (SP): fine grained; black; wet. CLAYEY SILT (ML-CL): red-brown; moist; soft. SILTY CLAY (CL-ML): dark gray; moist; soft.

CLML

2 - 13': 3/8" Bentonite Chip Seal

Elevation, feet

Surface Elevation: 181.9 ft IPL Blue Valley Site Characterization 25491019 Drilling Method: Direct Push/Hollow Stem Auger Independence, MO Sampling Method: Grab N 1,066,990.9 ft E 2,839,607.7 ft NAD83 StatePlane Missouri West FIPS 2403 (US Feet) Completion Depth: 35.0 ft Graphic Log

Sample No.

Sample Type & Recovery

Depth, feet

Project: Project No.: Location: Coordinates: Datum:

SHEET 1 OF 1

180

175

10 M:\GINT\PROJECTS\25491019_IPL BLUE RIVER WELL INSTALLATIONS - COPY.GPJ BARRLIBRARY.GLB ENVIRO LOG BARR TEMPLATE.GDT

LEAN CLAY (CL): with trace sand; dark gray; wet; very soft. LEAN CLAY (CL): with little coarse sand; dark gray; moist; stiff.

170

CLML CLML CLML CLML

SILTY CLAY (CL-ML): dark gray; moist to wet; very soft.

165

SILTY CLAY (CL-ML): with little sand; dark gray; moist; stiff. SILTY CLAY (CL-ML): dark gray; moist to wet; very soft. SILTY CLAY (CL-ML): with little sand; dark gray; moist; stiff. SILTY CLAY (CL-ML): with intermittent 1-2" zones of clay; dark gray; moist.

13 - 35': Red Flint Sand Filter

160

CLML

POORLY GRADED SAND (SP): with little clay; dark gray; moist; soft; very wet in top 2".

15 - 35': 2" Nominal Schedule 40 PVC Screen, 10-slot

155

150

End of boring 35.0 feet 6-25-19: Sampling stopped at 30'. HSA down to 35', no noticeable change in material from cuttings.

145

40 Date Boring Started: Date Boring Completed: Logged By: Drilling Contractor: Drill Rig:

6/24/19 6/25/19 RDH3 Razek Geoprobe

Remarks: Workplan B-9 Water 3.16 below top of riser

Additional data may have been collected in the field which is not included on this log.

LOG OF BORING MW-04

Barr Engineering Company 1001 Diamond Ridge, Suite 1100 Jefferson City, MO 65109 Telephone: 573-638-5000

U S C S

MLCL CLML MLCL

LITHOLOGIC DESCRIPTION

CLAYEY SILT (ML-CL): dark brown; moist; with vegetation. SILTY CLAY (CL-ML): dark gray streaked with brown; moist. CLAYEY SILT (ML-CL): reddish brown; moist. 3' color change to dark brown. CLAYEY SILT (ML-CL): dark gray; moist; hard.

M:\GINT\PROJECTS\25491019_IPL BLUE RIVER WELL INSTALLATIONS - COPY.GPJ BARRLIBRARY.GLB ENVIRO LOG BARR TEMPLATE.GDT

Above grade completion with 4" square protective casing and cement pad. 30" riser stickup ags, 2" Nominal Schedule 40 PVC

180

2 - 11': 3/8" Bentonite Chip Seal

MLCL

WELL OR PIEZOMETER CONSTRUCTION DETAIL

Elevation, feet

Surface Elevation: 183.3 ft IPL Blue Valley Site Characterization 25491019 Drilling Method: Direct Push/Hollow Stem Auger Independence, MO Sampling Method: Grab N 1,066,580.3 ft E 2,839,482.2 ft NAD83 StatePlane Missouri West FIPS 2403 (US Feet) Completion Depth: 44.0 ft Graphic Log

Sample No.

Sample Type & Recovery

Depth, feet

Project: Project No.: Location: Coordinates: Datum:

SHEET 1 OF 1

175 SILTY CLAY (CL-ML): dark gray; moist; stiff.

CLML

12.3 - 12.75': soft, slightly wet.

CLML

SILTY CLAY (CL-ML): dark gray; moist; stiff. 16 - 16.25': very moist, soft. 16.5 - 16.9': very moist, soft. From 17.75': dry to moist, very hard, decrease in silt content.

170

165

SILTY CLAY (CL-ML): dark gray; moist; 0.5 - 1' zones of varrying consitency between stiff/hard and less stiff. CLML

25 CLML

160 SILTY CLAY (CL-ML): dark gray; moist. 25 - 27': very compact. From 27': increasing moisture, decreasing stiffness.

11 - 44': Red Flint Sand Filter

155

FAT CLAY (CH): dark gray; wet; very soft.

30': borehole collapsing due to expansive clays.

150 35

14 - 44': 2" Nominal Schedule 40 PVC Screen, 10-slot

145 40

140 45

End of boring 44.0 feet Stopped sampling at 30'.

135 50 Date Boring Started: Date Boring Completed: Logged By: Drilling Contractor: Drill Rig:

6/24/19 6/25/19 RDH3 Razek Geoprobe

Remarks: Workplan B-10 Water 18.89' below top of riser Drive point advanced to 64' bgs, assumed top of bedrock. Additional data may have been collected in the field which is not included on this log.

LOG OF BORING MW-05

Barr Engineering Company 1001 Diamond Ridge, Suite 1100 Jefferson City, MO 65109 Telephone: 573-638-5000

LITHOLOGIC DESCRIPTION

SILT WITH GRAVEL (ML): brown to reddish brown; moist; with organics and roots. COAL: fine to gravel sized with some gravel; moist. FILL: debris, metal, brick, mulch; moist. CLAY WITH GRAVEL (CL): gray with red mottling, few black mottles; moist to wet.

WELL OR PIEZOMETER CONSTRUCTION DETAIL

Above grade completion with 4" square protective casing and cement pad. 30" riser stickup ags, 2" Nominal Schedule 40 PVC

M:\GINT\PROJECTS\25491019_IPL BLUE RIVER WELL INSTALLATIONS - COPY.GPJ BARRLIBRARY.GLB ENVIRO LOG BARR TEMPLATE.GDT

180

170 SILTY CLAY WITH GRAVEL (CL-ML): tan with red and gray mottling; wet; hard.

185

175

Elevation, feet

Sample No.

Sample Type & Recovery

U S C S

Graphic Log

Surface Elevation: 185.2 ft IPL Blue Valley Site Characterization 25491019 Drilling Method: Rotosonic Independence, MO Sampling Method: Grab N 1,065,683.5 ft E 2,839,380.5 ft NAD83 StatePlane Missouri West FIPS 2403 (US Feet) Completion Depth: 56.5 ft

Project: Project No.: Location: Coordinates: Datum: Depth, feet

SHEET 1 OF 1

CLML

0 - 37': Cement Grout, Portland Type I with 5% Bentonite

165

160

SANDY SILT WITH CLAY (ML): tan brown, red mottling; saturated; loose. SILTY CLAY (CL-ML): brownish grey with red and black mottles; saturated; very hard; occasional black gravel.

155

CLML

150 SILTY CLAY (CL-ML): dark gray with red mottles; wet to saturated; soft.

CLML

37 - 42.5': 3/8" Bentonite Chip Seal

145

SANDY SILT (ML): very dark grey; wet; very loose.

140 42.5 - 56': Red Flint Sand Filter

ML 46 - 56': 2" Nominal Schedule 40 PVC Screen, 10-slot

130 End of boring 56.5 feet

60 Date Boring Started: Date Boring Completed: Logged By: Drilling Contractor: Drill Rig:

135

8/5/19 8/5/19 KJB Cascade Rotosonic

Remarks: Workplan BH-11 Water at 20' before well set - from lower level under pressure

Additional data may have been collected in the field which is not included on this log.

LOG OF BORING MW-06/TW-1

Barr Engineering Company 1001 Diamond Ridge, Suite 1100 Jefferson City, MO 65109 Telephone: 573-638-5000

0 ML

LITHOLOGIC DESCRIPTION

TOPSOIL (ML): Sandy Silt; brown with reddish brown mottling; moist; organics, roots. CLAYEY SILT (ML): light brown with yellow mottling; moist.

WELL OR PIEZOMETER CONSTRUCTION DETAIL

Above grade completion with 4" square protective casing and cement pad. 30" riser stickup ags, 2" Nominal Schedule 40 PVC

Elevation, feet

Sample No.

Sample Type & Recovery

U S C S

Graphic Log

Surface Elevation: 204.1 ft IPL Blue Valley Site Characterization 25491019 Drilling Method: Rotosonic Independence, MO Sampling Method: Grab N 1,067,735.6 ft E 2,838,728.7 ft NAD83 StatePlane Missouri West FIPS 2403 (US Feet) Completion Depth: 71.0 ft

Project: Project No.: Location: Coordinates: Datum: Depth, feet

SHEET 1 OF 2

200

CLAY WITH SILT (CL-ML): reddish brown with yellow mottling; wet; high plasticity.

195 10

M:\GINT\PROJECTS\25491019_IPL BLUE RIVER WELL INSTALLATIONS - COPY.GPJ BARRLIBRARY.GLB ENVIRO LOG BARR TEMPLATE.GDT

190 15

CLML

16': increase in silt content, gray mottling; wet.

185 20

180 25

GRAVELLY CLAY (CL): with sandstone; red with gray mottling; wet. SILTY CLAY: grayish tan with orange mottling; wet.

175 30

3 - 60': Cement Grout, Portland Type I with 5% Bentonite SILT WITH SILTSTONE (ML): grayish-tan; dry; thinly bedded.

170

SHALE WITH SILT: light gray; dry.

165 40 42': color change to medium gray; moist.

160 45 COAL: vitreous, black with dark brown layers, very light; dry. LIMESTONE AND SHALE: interbedded (6 to 10" thick beds); light gray; dry.

155 50 Date Boring Started: Date Boring Completed: Logged By: Drilling Contractor: Drill Rig:

8/2/19 8/2/19 KJB Cascade Rotosonic

Remarks: Workplan BH-1

Additional data may have been collected in the field which is not included on this log.

LOG OF BORING MW-06/TW-1

Barr Engineering Company 1001 Diamond Ridge, Suite 1100 Jefferson City, MO 65109 Telephone: 573-638-5000

U S C S

LITHOLOGIC DESCRIPTION

WELL OR PIEZOMETER CONSTRUCTION DETAIL

Elevation, feet

Sample No.

Sample Type & Recovery

Depth, feet

Project: Project No.: Location: Coordinates: Datum:

SHEET 2 OF 2

LIMESTONE AND SHALE: interbedded (6 to 10" thick beds); light gray; dry; (continued).

150

OIL: gray limestone with silt and brown oil, very strong hydrocarbon odor; dry. LIMESTONE AND SHALE: interbedded with 2 - 4" layers of oil; light gray; dry.

145 60 61 - 67': no oil layers.

60 - 64': 3/8" Bentonite Chip Seal

M:\GINT\PROJECTS\25491019_IPL BLUE RIVER WELL INSTALLATIONS - COPY.GPJ BARRLIBRARY.GLB ENVIRO LOG BARR TEMPLATE.GDT

140 65

64 - 71': Red Flint Sand Filter

66 - 71': 2" Nominal Schedule 40 PVC Screen, 10-slot

135

End of boring 71.0 feet

130 75

125 80

120 85

115 90

110 95

105 100 Date Boring Started: Date Boring Completed: Logged By: Drilling Contractor: Drill Rig:

8/2/19 8/2/19 KJB Cascade Rotosonic

Remarks: Workplan BH-1

Additional data may have been collected in the field which is not included on this log.

LOG OF BORING MW-07/TW-2

Barr Engineering Company 1001 Diamond Ridge, Suite 1100 Jefferson City, MO 65109 Telephone: 573-638-5000

LITHOLOGIC DESCRIPTION

TOPSOIL (OL): dark brown; dry; low dry strength; organics at the top.

SILT (ML): dark brown, some orange mottling; dry; low dry strength. CLAYEY SILT (ML-CL): dark brown, orange mottling; dry to moist; low plasticity; chert pieces intermixed.

From 5.3': Color change to medium brown; moist.

WELL OR PIEZOMETER CONSTRUCTION DETAIL

Above grade completion with 4" square protective casing and cement pad.

Elevation, feet

Sample No.

Sample Type & Recovery

U S C S

Graphic Log

Surface Elevation: 202.3 ft IPL Blue Valley Site Characterization 25491019 Drilling Method: Rotosonic Independence, MO Sampling Method: Grab N 1,066,773.1 ft E 2,838,220.6 ft NAD83 StatePlane Missouri West FIPS 2403 (US Feet) Completion Depth: 91.0 ft

Project: Project No.: Location: Coordinates: Datum: Depth, feet

SHEET 1 OF 2

200

30" riser stickup ags, 2" Nominal Schedule 40 PVC

195 10

6 - 14: dark orangeish red mottling.

M:\GINT\PROJECTS\25491019_IPL BLUE RIVER WELL INSTALLATIONS - COPY.GPJ BARRLIBRARY.GLB ENVIRO LOG BARR TEMPLATE.GDT

190 From 14': dense, medium plasticity.

16': wet.

185

20 - 37.5': very dense, slightly moist, black mottling.

180

MLCL

25 175 30 170 35 3 - 72': Cement Grout, Portland Type I with 5% Bentonite

37.5' - 43.5': fine gravel intermixed.

165

40 160 SANDY SILT (ML): fine grained; light brown; dry; dense; low dry strength.

ML MLCL ML

50 Date Boring Started: Date Boring Completed: Logged By: Drilling Contractor: Drill Rig:

CLAYEY SILT (ML-CL): light orange; low to medium plasticity; intermixed coarse limestone gravel (1 - 2" diameter). SILT (ML): light to medium gray; dry; medium dense; low dry strength; laminated.

8/3/19 8/4/19 AMS2 Cascade Rotosonic

Remarks: Workplan BH-2

Additional data may have been collected in the field which is not included on this log.

155

LOG OF BORING MW-07/TW-2

Barr Engineering Company 1001 Diamond Ridge, Suite 1100 Jefferson City, MO 65109 Telephone: 573-638-5000

U S C S

LITHOLOGIC DESCRIPTION

WELL OR PIEZOMETER CONSTRUCTION DETAIL

Elevation, feet

Sample No.

Sample Type & Recovery

Depth, feet

Project: Project No.: Location: Coordinates: Datum:

SHEET 2 OF 2

SILT (ML): light to medium gray; dry; medium dense; low dry strength; laminated. (continued)

150 55 145

57 - 66': possible weathered bedrock.

60 140

M:\GINT\PROJECTS\25491019_IPL BLUE RIVER WELL INSTALLATIONS - COPY.GPJ BARRLIBRARY.GLB ENVIRO LOG BARR TEMPLATE.GDT

65 66 - 76.5': intermixed pieces of very compact silt.

135

70 130 75

72 - 78': 3/8" Bentonite Chip Seal COAL: lignite; black; wet; low density (increases with depth).

SILT/SILTSTONE: dark gray; dry; dense; low dry strength; laminated.

125 78 - 90': Red Flint Sand Filter

120 85

80 - 90': 2" Nominal Schedule 40 PVC Screen, 10-slot SILTSTONE: dark gray; dry; low dry strength; laminated; dense (less dense than 80 - 87.5' interval).

COAL: lignite; black; wet; low dry strength. End of boring 91.0 feet

115

110

95 105 100 Date Boring Started: Date Boring Completed: Logged By: Drilling Contractor: Drill Rig:

8/3/19 8/4/19 AMS2 Cascade Rotosonic

Remarks: Workplan BH-2

Additional data may have been collected in the field which is not included on this log.

LOG OF BORING MW-08/TW-4

Barr Engineering Company 1001 Diamond Ridge, Suite 1100 Jefferson City, MO 65109 Telephone: 573-638-5000

0 ML

LITHOLOGIC DESCRIPTION

TOPSOIL (ML): sandy silt with organics; red-brown; dry to moist. SANDY SILT (ML): red-brown; dry to moist; compacted.

CLML

SILTY CLAY (CL-ML): red-brown; moist; very soft.

WELL OR PIEZOMETER CONSTRUCTION DETAIL

Elevation, feet

Sample No.

Sample Type & Recovery

U S C S

Graphic Log

Surface Elevation: 204.5 ft IPL Blue Valley Site Characterization 25491019 Drilling Method: Rotosonic Independence, MO Sampling Method: Grab N 1,068,224.4 ft E 2,839,361.2 ft NAD83 StatePlane Missouri West FIPS 2403 (US Feet) Completion Depth: 76.0 ft

Project: Project No.: Location: Coordinates: Datum: Depth, feet

SHEET 1 OF 2

Above grade completion with 4" square protective casing and cement pad. 30" riser stickup ags, 2" Nominal Schedule 40 PVC

200

CLAY (CL): red-brown, grey mottling; moist; soft.

195

M:\GINT\PROJECTS\25491019_IPL BLUE RIVER WELL INSTALLATIONS - COPY.GPJ BARRLIBRARY.GLB ENVIRO LOG BARR TEMPLATE.GDT

SILTY CLAY (CL-ML): red-brown, gray mottling; moist; dense.

190

15 S1

CLML

16 - 16.5': very soft.

SILTY CLAY (CL-ML): orange/tan; moist; very hard; trace ferric minerals.

185

CLML SILT WITH LITTLE SAND (ML): orange/tan; dry; very compact; laminated.

180

ML SILT (ML): orange/red; wet; compacted, crushed and mixed with water from previous run. ML

30 ML CLML

(ML): gray; dry; compacted; laminated; mostly intact core.

3 - 60': Cement Grout, Portland Type I with 5% Bentonite

175

SILT (CL-ML): interbedded with clayey silt, gray, dry, compact silt interbedded with layers of soft, brown, moist clayey silt, 0.25 - 1" layers, laminations visible.

170 SILT (ML): gray; dry; compacted, crushed by drilling process.

165

40 SILT WITH SOME SILTSTONE: weak siltstone (crushed by drilling process) in pulverized silt, slightly more competant than previous runs, gray, dry.

160

50 Date Boring Started: Date Boring Completed: Logged By: Drilling Contractor: Drill Rig:

LIMESTONE: medium to coarse grained; gray; dry; crystalline, compact pieces in pulverized powder. SILT WITH SOME SILTSTONE: gray; dry; weak siltstone. COAL: dark brown; dry; sooty, brittle.

8/1/19 8/2/19 RDH3 Cascade Rotosonic

Remarks: Workplan BH-4 65 - 66' interval contains crude oil.

Additional data may have been collected in the field which is not included on this log.

155

LOG OF BORING MW-08/TW-4

Barr Engineering Company 1001 Diamond Ridge, Suite 1100 Jefferson City, MO 65109 Telephone: 573-638-5000

LITHOLOGIC DESCRIPTION

SILT WITH SOME SILTSTONE: gray; dry; weak siltstone. (continued)

LIMESTONE: medium to coarse grained; light gray; dry; crystalline, well cemented, trace fossils and minerals, pieces in pulverized powder.

150

SANDSTONE AND SILT: fine grained; brown/tan; dry; weakly to well cemented sandstone interbedded with dry, brown, and compacted silt.

SILT (ML): dry; compacted, thin layers of light tan and brown silt.

60 ML

M:\GINT\PROJECTS\25491019_IPL BLUE RIVER WELL INSTALLATIONS - COPY.GPJ BARRLIBRARY.GLB ENVIRO LOG BARR TEMPLATE.GDT

WELL OR PIEZOMETER CONSTRUCTION DETAIL

Elevation, feet

Sample No.

Sample Type & Recovery

U S C S

Graphic Log

Project: Project No.: Location: Coordinates: Datum: Depth, feet

SHEET 2 OF 2

145 60 - 64': 3/8" Bentonite Chip Seal

140

65 S2

ML ML

SILT (ML): gray/brown; moist; compacted, laminated, contains crude oil. SILT (ML): dry; compacted, thin layers of tan and brown interbedded. SILT AND SILTSTONE: gray; dry; compacted silt interbedded with siltstone. Intact core.

64 - 76': Red Flint Sand Filter

135 69 - 76': crushed by drilling process.

66 - 76': 2" Nominal Schedule 40 PVC Screen, 10-slot

130

75 End of boring 76.0 feet

125

120

115

110

100 Date Boring Started: Date Boring Completed: Logged By: Drilling Contractor: Drill Rig:

105 8/1/19 8/2/19 RDH3 Cascade Rotosonic

Remarks: Workplan BH-4 65 - 66' interval contains crude oil.

Additional data may have been collected in the field which is not included on this log.

LOG OF BORING TW-3

Barr Engineering Company 1001 Diamond Ridge, Suite 1100 Jefferson City, MO 65109 Telephone: 573-638-5000

U S C S

0 ML

LITHOLOGIC DESCRIPTION

SANDY SILT (ML): with organics. CLAYEY SILT (ML-CL): red brown with some streaks of black; dry to moist; dense.

WELL OR PIEZOMETER CONSTRUCTION DETAIL

Above grade completion with 4" square protective casing and cement pad. 30" riser stickup ags, 2" Nominal Schedule 40 PVC

MLCL

Elevation, feet

Surface Elevation: 194.5 ft IPL Blue Valley Site Characterization 25491019 Drilling Method: Rotosonic Independence, MO Sampling Method: Grab N 1,066,235.2 ft E 2,838,428.6 ft NAD83 StatePlane Missouri West FIPS 2403 (US Feet) Completion Depth: 131.0 ft Graphic Log

Sample No.

Sample Type & Recovery

Depth, feet

Project: Project No.: Location: Coordinates: Datum:

SHEET 1 OF 3

190

CLAY (CL): red brown; moist; soft; high plasticity. CL

185

CLAY (CL): with little silt; very fine to fine grained; red brown; moist; soft; medium plasticity. CL CLAYEY SILT (ML): red brown/gray; dry to moist; very dense; high silt content; non-plastic plasticity.

M:\GINT\PROJECTS\25491019_IPL BLUE RIVER WELL INSTALLATIONS - COPY.GPJ BARRLIBRARY.GLB ENVIRO LOG BARR TEMPLATE.GDT

MLCL CLML

180 SILT WITH SOME CLAY (ML-CL): red/gray; dry to moist; very silty, crumbly. SILTY CLAY (CL-ML): gray/brown; very stiff exterior, moist and highly plastic interior. SILTY CLAY (CL-ML): red brown, mottled gray; dry; very stiff; crumbly.

175 CLML

3 - 101.5': Cement Grout, Portland Type I with 5% Bentonite

SILT (ML): brown; dry; compact.

SILT WITH SOME GRAVEL (ML): large pieces of limestone gravel; brown; dry. SILT (ML): brown; dry; compact.

170

165 ML

SILT (ML): tan/brown; dry; compact, ground by drilling.

160

35 ML

39 - 40': more competent. SILT (ML): gray; dry; compact, more competant in lower 3', 6" zones of more pulverized, dry, compact red brown silt with little clay at 41' and 42'.

36 - 37': more competent, visible laminations.

150

50 Date Boring Started: Date Boring Completed: Logged By: Drilling Contractor: Drill Rig:

155

145 7/30/19 7/31/19 RDH3 Cascade Rotosonic

Remarks: Workplan BH-6

Additional data may have been collected in the field which is not included on this log.

LOG OF BORING TW-3

Barr Engineering Company 1001 Diamond Ridge, Suite 1100 Jefferson City, MO 65109 Telephone: 573-638-5000

U S C S

50 ML

ML ML

LITHOLOGIC DESCRIPTION

WELL OR PIEZOMETER CONSTRUCTION DETAIL

Elevation, feet

Sample No.

Sample Type & Recovery

Depth, feet

Project: Project No.: Location: Coordinates: Datum:

SHEET 2 OF 3

SILT (ML): gray; dry; compact, more competant in lower 3', 6" zones of more pulverized, dry, compact red brown silt with little clay at 41' and 42'. (continued)

COAL: black; sooty, brittle, laminated. SILT (ML): dark gray; dry to moist; compact. SILT (ML): with pieces of anthracite coal; dark brown; dry; mostly pulverized, coal has higher sheen than previous coal layer. SILT (ML): gray; compact, laminated, more competent.

140

135

60 SILT WITH LITTLE CLAY (ML): gray; dry; some clumps with higher moisture and plasticity; compact.

M:\GINT\PROJECTS\25491019_IPL BLUE RIVER WELL INSTALLATIONS - COPY.GPJ BARRLIBRARY.GLB ENVIRO LOG BARR TEMPLATE.GDT

SILT (ML): gray; dry; compact, broken up, slightly more competent 70 - 71'.

130

65 ML

125

70 SILT/SILTSTONE: gray; dry; pulverized, compact silt with large pieces of highly compacted silt, visibly laminated.

75 SILT (ML): gray; dry; compact, pulverized by drilling.

3 - 101.5': Cement Grout, Portland Type I with 5% Bentonite

120

115

80 ML

SILT WITH SILTSTONE: gray; dry; compact, pulverized compact silt with large pieces of weak/weathered siltstone. SILT (ML): gray; dry; compact, pulverized by drilling. SILT WITH SILTSTONE: gray; dry; compact, pulverized compact silt with large pieces of weak/weathered siltstone, 2" zones with slightly moist silt with little clay.

110

SILT (ML): gray; dry; compact, pulverized by drilling.

105 SILT WITH SILTSTONE: gray; dry; compact, pulverized compact silt with large pieces of weak/weathered siltstone.

SILT (ML): gray; dry; compact, pulverized, few pieces with higher moisture. 93': 2" tan gravel layer. SILT WITH SILTSTONE: gray; dry; compact, pulverized compact silt with large pieces of weak/weathered siltstone.

100

SILT AND SILTSTONE: gray; dry; siltstone interbedded with layers of compacted silt, highly laminated, weakly cemented, 94 - 95' intact. From 98': increased siltstone content.

100 Date Boring Started: Date Boring Completed: Logged By: Drilling Contractor: Drill Rig:

95 7/30/19 7/31/19 RDH3 Cascade Rotosonic

Remarks: Workplan BH-6

Additional data may have been collected in the field which is not included on this log.

LOG OF BORING TW-3

Barr Engineering Company 1001 Diamond Ridge, Suite 1100 Jefferson City, MO 65109 Telephone: 573-638-5000

U S C S

100

LITHOLOGIC DESCRIPTION

101.5 - 106.5': 3/8" Bentonite Chip Seal

SILT AND SILTSTONE: gray; dry; siltstone interbedded with layers of compacted silt, highly laminated, weakly cemented, 94 - 95' intact. (continued)

105

110

M:\GINT\PROJECTS\25491019_IPL BLUE RIVER WELL INSTALLATIONS - COPY.GPJ BARRLIBRARY.GLB ENVIRO LOG BARR TEMPLATE.GDT

WELL OR PIEZOMETER CONSTRUCTION DETAIL

Elevation, feet

Sample No.

Sample Type & Recovery

Depth, feet

Project: Project No.: Location: Coordinates: Datum:

SHEET 3 OF 3

106.5 - 121.7': Red Flint Sand Filter

115 116' - 116.5': fossils. LIMESTONE: medium to coarse grained; gray/tan; dry; crystalline, trace minerals, limestone chunks in powder created by drilling.

120

111.33 - 121.33': 2" Nominal Schedule 40 PVC Screen, 10-slot

75 120 - 121.5': low recovery. SANDSTONE AND LIMESTONE: interbedded sandstone and limestone, 0.25 to 0.5' thick beds. Sandstone is well cemented with trace fossils and minerals.

125

SILTSTONE: dark gray; dry; laminated, weak bedding planes. COAL: black; sooty, brittle.

LIMESTONE: medium to coarse grained; gray; dry; trace minerals and fossils. Pieces in tan pulverized sandstone pulverized by drilling.

130 End of boring 131.0 feet

135

140

145

150 Date Boring Started: Date Boring Completed: Logged By: Drilling Contractor: Drill Rig:

45 7/30/19 7/31/19 RDH3 Cascade Rotosonic

Remarks: Workplan BH-6

Additional data may have been collected in the field which is not included on this log.

Appendix C Well Certifications

DATE RECEIVED

OFFICE USE ONLY

MISSOURI DEPARTMENT OF NATURAL RESOURCES GEOLOGICAL SURVEY PROGRAM

MONITORING WELL CERTIFICATION RECORD

REFERENCE NO. C.R. NO.

CHECK NO.

STATE WELL NUMBER

REVENUE NO.

ENTERED

APPROVED BY

Ph1

Ph2

Ph3

ROUTE

INFORMATION SUPPLIED BY PRIMARY CONTRACTOR OR DRILLING CONTRACTOR NOTE: THIS FORM IS NOT TO BE USED FOR NESTED WELLS OWNER NAME

CONTACT NAME

OWNER ADDRESS

VARIANCE GRANTED BY DNR

CITY

STATE

ZIP CODE

NUMBER

None SITE NAME

WELL NUMBER

COUNTY

Independence Power and Light

MW-7

Jackson

SITE ADDRESS

CITY

21500 East Truman Road

Independence

STATIC WATER LEVEL

SURFACE COMPLETION TYPE

✔ ABOVE GROUND

DIAMETER AND DEPTH OF THE HOLE SURFACE COMPLETION WAS PLACED

5 DIAMETER 4

FT.

DIAMETER 24

IN.

LENGTH

FLUSH MOUNT

LOCATION OF WELL (D/M/S FORMAT ONLY)

LENGTH AND DIAMETER OF SURFACE COMPLETION

SURFACE COMPLETION GROUT LAT.

IN.

✔ CONCRETE

FT.

OTHER

39 ____ _ ° 5 __ __ ' 44.51 __ __"

____ LONG. 94

19_____ ' 15.90 _ ___ "

SMALLEST

✔ LOCKING CAP

SURFACE COMPLETION

✔ STEEL

WEEP HOLE

ALUMINUM

PLASTIC

LARGEST ¼

SECTION

TOWNSHIP

RANGE

EAST

NORTH WEST

MONITORING FOR: (CHECK ALL THAT APPLY) ELEVATION

RADIONUCLIDES

RISER

________ FT. 753

RISER PIPE DIAMETER RISER PIPE LENGTH

DIAMETER OF DRILL HOLE 8.25

ANNULAR SEAL LENGTH

6 ________ FT.

SLURRY

WEIGHT OR SDR#

✔ CHIPS

PELLETS

2 15

MATERIAL

GRANULAR

STEEL

CEMENT/SLURRY

IN.

✔ PETROLEUM PRODUCTS ONLY

EXPLOSIVES

METALS

SVOCS

PESTICIDES/HERBICIDES

FT.

PROPOSED USE OF WELL

IN.

GAS MIGRATION WELL EXTRACTION WELL PIEZOMETERS DIRECT PUSH DEPTH TO FROM

✔ THERMOPLASTIC (PVC)

VOC

✔ OBSERVATION

OPEN HOLE INJECTION WELL FORMATION DESCRIPTION

OTHER

IF CEMENT/BENTONITE MIX: BAGS OF CEMENT USED % OF BENTONITE USED WATER USED/BAG

5 ________ GAL.

BENTONITE SEAL LENGTH 6

✔ CHIPS

PELLETS

GRANULAR

SATURATED ZONE

HYDRATED

SLURRY

SECONDARY FILTER PACK LENGTH

N/A ________ FT. SCREEN SCREEN DIAMETER SCREEN LENGTH

DIAMETER OF DRILL HOLE 8.25

DEPTH TO TOP OF PRIMARY FILTER PACK

8 ________ FT.

DEPTH TO TOP

IN. FT. IN. FT.

SCREEN MATERIAL STEEL ✔ THERMOPLASTIC (PVC)

LENGTH OF PRIMARY FILTER PACK

2 20

OTHER

27 ________ FT.

TOTAL DEPTH:

FOR CASED WELLS, SUBMIT ADDITIONAL AS BUILT DIAGRAMS SHOWING WELL CONSTRUCTION DETAILS INCLUDING TYPE & SIZE OF ALL CASING, HOLE DIAMETER & GROUT USED. SIGNATURE (PRIMARY CONTACTOR)

PERMIT NUMBER

DATE WELL DRILLING WAS COMPELTED

06/30/2019 I HEREBY CERTIFY THAT THE MONITORING WELL HEREIN DESCRIBED WAS CONSTRUCTED IN ACCORDANCE WITH MISSOURI DEPARTMENT OF NATURAL RESOURCES REQUIREMENTS FOR THE CONSTRUCTION OF MONITORING WELLS. SIGNATURE (WELL DRILLER)

PERMIT NUMBER

SIGNATURE (OF APPRENTICE)

PUMP INSTALLED APPRENTICE PERMIT NUMBER

MO 780-1415 (07-11) DISTRIBUTION: WHITE/DIVISION CANARY/CONTACTOR PINK/OWNER RETURN WHITE COPY WITH APPROPRIATE FEE TO: MISSOURI DEPARTMENT OF NATURAL RESOURCES, DIVISION OF GEOLOGY AND LAND SURVEY, WELLHEAD PROTECTION SECTION, PO BOX 250, ROLLA, MO 65402 573-368-2165

DATE RECEIVED

OFFICE USE ONLY

MISSOURI DEPARTMENT OF NATURAL RESOURCES GEOLOGICAL SURVEY PROGRAM

MONITORING WELL CERTIFICATION RECORD

REFERENCE NO. C.R. NO.

CHECK NO.

STATE WELL NUMBER

REVENUE NO.

ENTERED

APPROVED BY

Ph1

Ph2

Ph3

ROUTE

INFORMATION SUPPLIED BY PRIMARY CONTRACTOR OR DRILLING CONTRACTOR NOTE: THIS FORM IS NOT TO BE USED FOR NESTED WELLS OWNER NAME

CONTACT NAME

OWNER ADDRESS

VARIANCE GRANTED BY DNR

CITY

STATE

ZIP CODE

NUMBER

None SITE NAME

WELL NUMBER

COUNTY

Independence Power and Light

MW-8

Jackson

SITE ADDRESS

CITY

21500 East Truman Road

Independence

STATIC WATER LEVEL

SURFACE COMPLETION TYPE

✔ ABOVE GROUND

DIAMETER AND DEPTH OF THE HOLE SURFACE COMPLETION WAS PLACED

5 DIAMETER 4

FT.

DIAMETER 24

IN.

LENGTH

FLUSH MOUNT

LOCATION OF WELL (D/M/S FORMAT ONLY)

LENGTH AND DIAMETER OF SURFACE COMPLETION

SURFACE COMPLETION GROUT LAT.

IN.

✔ CONCRETE

FT.

OTHER

39 ____ _ ° 5 __ __ ' 48.36 __ __"

____ LONG. 94

19_____ ' 14.36 _ ___ "

SMALLEST

✔ LOCKING CAP

SURFACE COMPLETION

✔ STEEL

WEEP HOLE

ALUMINUM

PLASTIC

LARGEST ¼

SECTION

TOWNSHIP

RANGE

EAST

NORTH WEST

MONITORING FOR: (CHECK ALL THAT APPLY) ELEVATION

RADIONUCLIDES

RISER

________ FT. 753

RISER PIPE DIAMETER RISER PIPE LENGTH

DIAMETER OF DRILL HOLE 8.25

ANNULAR SEAL LENGTH

11 ________ FT.

SLURRY

WEIGHT OR SDR#

✔ CHIPS

PELLETS

2 15

MATERIAL

GRANULAR

STEEL

CEMENT/SLURRY

IN.

✔ PETROLEUM PRODUCTS ONLY

EXPLOSIVES

METALS

SVOCS

PESTICIDES/HERBICIDES

FT.

PROPOSED USE OF WELL

IN.

GAS MIGRATION WELL EXTRACTION WELL PIEZOMETERS DIRECT PUSH DEPTH TO FROM

✔ THERMOPLASTIC (PVC)

VOC

✔ OBSERVATION

OPEN HOLE INJECTION WELL FORMATION DESCRIPTION

OTHER

IF CEMENT/BENTONITE MIX: BAGS OF CEMENT USED % OF BENTONITE USED WATER USED/BAG

5 ________ GAL.

BENTONITE SEAL LENGTH 11

✔ CHIPS

PELLETS

GRANULAR

SATURATED ZONE

HYDRATED

SLURRY

SECONDARY FILTER PACK LENGTH

N/A ________ FT. SCREEN SCREEN DIAMETER SCREEN LENGTH

DIAMETER OF DRILL HOLE 8.25

DEPTH TO TOP OF PRIMARY FILTER PACK

13 ________ FT.

DEPTH TO TOP

IN. FT. IN. FT.

SCREEN MATERIAL STEEL ✔ THERMOPLASTIC (PVC)

LENGTH OF PRIMARY FILTER PACK

2 20

OTHER

22 ________ FT.

TOTAL DEPTH:

FOR CASED WELLS, SUBMIT ADDITIONAL AS BUILT DIAGRAMS SHOWING WELL CONSTRUCTION DETAILS INCLUDING TYPE & SIZE OF ALL CASING, HOLE DIAMETER & GROUT USED. SIGNATURE (PRIMARY CONTACTOR)

PERMIT NUMBER

DATE WELL DRILLING WAS COMPELTED

PERMIT NUMBER

SIGNATURE (OF APPRENTICE)

PUMP INSTALLED APPRENTICE PERMIT NUMBER

DATE RECEIVED

OFFICE USE ONLY

MISSOURI DEPARTMENT OF NATURAL RESOURCES GEOLOGICAL SURVEY PROGRAM

MONITORING WELL CERTIFICATION RECORD

REFERENCE NO. C.R. NO.

CHECK NO.

STATE WELL NUMBER

REVENUE NO.

ENTERED

APPROVED BY

Ph1

Ph2

Ph3

ROUTE

INFORMATION SUPPLIED BY PRIMARY CONTRACTOR OR DRILLING CONTRACTOR NOTE: THIS FORM IS NOT TO BE USED FOR NESTED WELLS OWNER NAME

CONTACT NAME

OWNER ADDRESS

VARIANCE GRANTED BY DNR

CITY

STATE

ZIP CODE

NUMBER

None SITE NAME

WELL NUMBER

COUNTY

Independence Power and Light

MW-9

Jackson

SITE ADDRESS

CITY

21500 East Truman Road

Independence

STATIC WATER LEVEL

SURFACE COMPLETION TYPE

✔ ABOVE GROUND

DIAMETER AND DEPTH OF THE HOLE SURFACE COMPLETION WAS PLACED

5 DIAMETER 4

FT.

DIAMETER 24

IN.

LENGTH

FLUSH MOUNT

LOCATION OF WELL (D/M/S FORMAT ONLY)

LENGTH AND DIAMETER OF SURFACE COMPLETION

SURFACE COMPLETION GROUT LAT.

IN.

✔ CONCRETE

FT.

OTHER

39 ____ _ ° 5 __ __ ' 53.05 __ __"

____ LONG. 94

19_____ ' 12.55 _ ___ "

SMALLEST

✔ LOCKING CAP

SURFACE COMPLETION

✔ STEEL

WEEP HOLE

ALUMINUM

PLASTIC

LARGEST ¼

SECTION

TOWNSHIP

RANGE

EAST

NORTH WEST

MONITORING FOR: (CHECK ALL THAT APPLY) ELEVATION

RADIONUCLIDES

RISER

________ FT. 752

RISER PIPE DIAMETER RISER PIPE LENGTH

DIAMETER OF DRILL HOLE 8.25

ANNULAR SEAL LENGTH

11 ________ FT.

SLURRY

WEIGHT OR SDR#

✔ CHIPS

PELLETS

2 15

MATERIAL

GRANULAR

STEEL

CEMENT/SLURRY

IN.

✔ PETROLEUM PRODUCTS ONLY

EXPLOSIVES

METALS

SVOCS

PESTICIDES/HERBICIDES

FT.

PROPOSED USE OF WELL

IN.

GAS MIGRATION WELL EXTRACTION WELL PIEZOMETERS DIRECT PUSH DEPTH TO FROM

✔ THERMOPLASTIC (PVC)

VOC

✔ OBSERVATION

OPEN HOLE INJECTION WELL FORMATION DESCRIPTION

OTHER

IF CEMENT/BENTONITE MIX: BAGS OF CEMENT USED % OF BENTONITE USED WATER USED/BAG

5 ________ GAL.

BENTONITE SEAL LENGTH 11

✔ CHIPS

PELLETS

GRANULAR

SATURATED ZONE

HYDRATED

SLURRY

SECONDARY FILTER PACK LENGTH

N/A ________ FT. SCREEN SCREEN DIAMETER SCREEN LENGTH

DIAMETER OF DRILL HOLE 8.25

DEPTH TO TOP OF PRIMARY FILTER PACK

13 ________ FT.

DEPTH TO TOP

IN. FT. IN. FT.

SCREEN MATERIAL STEEL ✔ THERMOPLASTIC (PVC)

LENGTH OF PRIMARY FILTER PACK

2 20

OTHER

22 ________ FT.

TOTAL DEPTH:

FOR CASED WELLS, SUBMIT ADDITIONAL AS BUILT DIAGRAMS SHOWING WELL CONSTRUCTION DETAILS INCLUDING TYPE & SIZE OF ALL CASING, HOLE DIAMETER & GROUT USED. SIGNATURE (PRIMARY CONTACTOR)

PERMIT NUMBER

DATE WELL DRILLING WAS COMPELTED

PERMIT NUMBER

SIGNATURE (OF APPRENTICE)

PUMP INSTALLED APPRENTICE PERMIT NUMBER

DATE RECEIVED

OFFICE USE ONLY

MISSOURI DEPARTMENT OF NATURAL RESOURCES GEOLOGICAL SURVEY PROGRAM

MONITORING WELL CERTIFICATION RECORD

REFERENCE NO. C.R. NO.

CHECK NO.

STATE WELL NUMBER

REVENUE NO.

ENTERED

APPROVED BY

Ph1

Ph2

Ph3

ROUTE

INFORMATION SUPPLIED BY PRIMARY CONTRACTOR OR DRILLING CONTRACTOR NOTE: THIS FORM IS NOT TO BE USED FOR NESTED WELLS OWNER NAME

CONTACT NAME

OWNER ADDRESS

VARIANCE GRANTED BY DNR

CITY

STATE

ZIP CODE

NUMBER

None SITE NAME

WELL NUMBER

COUNTY

Independence Power and Light

MW-10

Jackson

SITE ADDRESS

CITY

21500 East Truman Road

Independence

STATIC WATER LEVEL

SURFACE COMPLETION TYPE

✔ ABOVE GROUND

DIAMETER AND DEPTH OF THE HOLE SURFACE COMPLETION WAS PLACED

5 DIAMETER 4

FT.

DIAMETER 24

IN.

LENGTH

FLUSH MOUNT

LOCATION OF WELL (D/M/S FORMAT ONLY)

LENGTH AND DIAMETER OF SURFACE COMPLETION

SURFACE COMPLETION GROUT LAT.

IN.

✔ CONCRETE

FT.

OTHER

39 ____ _ ° 5 __ __ ' 57.38 __ __"

____ LONG. 94

19_____ ' 10.28 _ ___ "

SMALLEST

✔ LOCKING CAP

SURFACE COMPLETION

✔ STEEL

WEEP HOLE

ALUMINUM

PLASTIC

LARGEST ¼

SECTION

TOWNSHIP

RANGE

EAST

NORTH WEST

MONITORING FOR: (CHECK ALL THAT APPLY) ELEVATION

RADIONUCLIDES

RISER

________ FT. 754

RISER PIPE DIAMETER RISER PIPE LENGTH

DIAMETER OF DRILL HOLE 8.25

ANNULAR SEAL LENGTH

9 ________ FT.

SLURRY

WEIGHT OR SDR#

✔ CHIPS

PELLETS

2 14

MATERIAL

GRANULAR

STEEL

CEMENT/SLURRY

IN.

✔ PETROLEUM PRODUCTS ONLY

EXPLOSIVES

METALS

SVOCS

PESTICIDES/HERBICIDES

FT.

PROPOSED USE OF WELL

IN.

GAS MIGRATION WELL EXTRACTION WELL PIEZOMETERS DIRECT PUSH DEPTH TO FROM

✔ THERMOPLASTIC (PVC)

VOC

✔ OBSERVATION

OPEN HOLE INJECTION WELL FORMATION DESCRIPTION

OTHER

IF CEMENT/BENTONITE MIX: BAGS OF CEMENT USED % OF BENTONITE USED WATER USED/BAG

5 ________ GAL.

BENTONITE SEAL LENGTH 9

✔ CHIPS

PELLETS

GRANULAR

SATURATED ZONE

HYDRATED

SLURRY

SECONDARY FILTER PACK LENGTH

N/A ________ FT. SCREEN SCREEN DIAMETER SCREEN LENGTH

DIAMETER OF DRILL HOLE 8.25

DEPTH TO TOP OF PRIMARY FILTER PACK

11 ________ FT.

DEPTH TO TOP

IN. FT. IN. FT.

SCREEN MATERIAL STEEL ✔ THERMOPLASTIC (PVC)

LENGTH OF PRIMARY FILTER PACK

2 30

OTHER

33 ________ FT.

TOTAL DEPTH:

FOR CASED WELLS, SUBMIT ADDITIONAL AS BUILT DIAGRAMS SHOWING WELL CONSTRUCTION DETAILS INCLUDING TYPE & SIZE OF ALL CASING, HOLE DIAMETER & GROUT USED. SIGNATURE (PRIMARY CONTACTOR)

PERMIT NUMBER

DATE WELL DRILLING WAS COMPELTED

PERMIT NUMBER

SIGNATURE (OF APPRENTICE)

PUMP INSTALLED APPRENTICE PERMIT NUMBER

Appendix D Laboratory Analytical Results

#=CL#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

LIMS USE: FR - TONY SCHROER LIMS OBJECT ID: 60310232

August 01, 2019

Tony Schroer Barr Engineering Company 1001 Diamond Ridge, Ste 1100 Jefferson City, MO 65109

RE: Project: 25/49 1019 IPL Blue Valley Pace Project No.: 60310232 Dear Tony Schroer: Enclosed are the analytical results for sample(s) received by the laboratory on July 29, 2019. The results relate only to the samples included in this report. Results reported herein conform to the most current, applicable TNI/NELAC standards and the laboratory's Quality Assurance Manual, where applicable, unless otherwise noted in the body of the report. If you have any questions concerning this report, please feel free to contact me. Sincerely,

Angie Brown angie.brown@pacelabs.com 1(913)563-1402 Project Manager Enclosures cc: Kat Brookshire, Barr Engineering Company Andrea Nord, Barr Engineering Company Margaret Treanor, Barr Engineering Company

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 1 of 10

#=CP#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

CERTIFICATIONS Project:

25/49 1019 IPL Blue Valley

Pace Project No.:

60310232

Kansas Certification IDs 9608 Loiret Boulevard, Lenexa, KS 66219 Missouri Inorganic Drinking Water Certification #: 10090 Arkansas Drinking Water Arkansas Certification #: 19-016-0 Arkansas Drinking Water Illinois Certification #: 004455 Iowa Certification #: 118 Kansas/NELAP Certification #: E-10116 Louisiana Certification #: 03055

Nevada Certification #: KS000212018-1 Oklahoma Certification #: 9205/9935 Florida: Cert E871149 SEKS WET Texas Certification #: T104704407-18-11 Utah Certification #: KS000212018-8 Illinois Certification #: 004592 Kansas Field Laboratory Accreditation: # E-92587 Missouri SEKS Micro Certification: 10070

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 2 of 10

#=SS#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

SAMPLE SUMMARY Project:

25/49 1019 IPL Blue Valley

Pace Project No.:

60310232

Lab ID

Sample ID

Matrix

Date Collected

Date Received

60310232001

IPL TCLP 1

Solid

07/29/19 15:30

07/29/19 17:35

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 3 of 10

#=SA#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

SAMPLE ANALYTE COUNT Project:

25/49 1019 IPL Blue Valley

Pace Project No.:

60310232 Analytes Reported

Lab ID

Sample ID

Method

Analysts

60310232001

IPL TCLP 1

EPA 6010

EMR

PASI-K

EPA 7470

JDE

PASI-K

Laboratory

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 4 of 10

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

25/49 1019 IPL Blue Valley

Pace Project No.:

60310232

Sample: IPL TCLP 1

Lab ID: 60310232001

Collected: 07/29/19 15:30

Received: 07/29/19 17:35

Matrix: Solid

Results reported on a "wet-weight" basis Parameters 6010 MET ICP, TCLP

Results

Units

Report Limit

Reg. Limit

Prepared

Analyzed

CAS No.

Qual

Analytical Method: EPA 6010 Preparation Method: EPA 3010 Leachate Method/Date: EPA 1311; 07/30/19 15:00 Initial pH: 7.38; Final pH: 5.42

Arsenic Barium Cadmium Chromium Lead Selenium Silver 7470 Mercury, TCLP

ND ND ND ND ND ND ND

mg/L mg/L mg/L mg/L mg/L mg/L mg/L

0.50 2.5 0.050 0.10 0.50 0.50 0.10

5 100 1 5 5 1 5

1 1 1 1 1 1 1

07/31/19 15:22 07/31/19 15:22 07/31/19 15:22 07/31/19 15:22 07/31/19 15:22 07/31/19 15:22 07/31/19 15:22

08/01/19 12:16 08/01/19 12:16 08/01/19 12:16 08/01/19 12:16 08/01/19 12:16 08/01/19 12:16 08/01/19 12:16

7440-38-2 7440-39-3 7440-43-9 7440-47-3 7439-92-1 7782-49-2 7440-22-4

Analytical Method: EPA 7470 Preparation Method: EPA 7470 Leachate Method/Date: EPA 1311; 07/30/19 15:00 Initial pH: 7.38; Final pH: 5.42

Mercury

mg/L

0.0020

07/31/19 14:57 08/01/19 11:45 7439-97-6

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 08/01/2019 04:34 PM

without the written consent of Pace Analytical Services, LLC.

Page 5 of 10

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

25/49 1019 IPL Blue Valley

Pace Project No.:

60310232

QC Batch:

600286

Analysis Method:

EPA 7470

QC Batch Method:

EPA 7470

Analysis Description:

7470 Mercury TCLP

Associated Lab Samples: METHOD BLANK:

60310232001

2455620

Associated Lab Samples:

Matrix: Water

60310232001

Parameter

Blank Result

Units

Mercury

mg/L

LABORATORY CONTROL SAMPLE: Parameter

0.0020

Spike Conc.

mg/L

LCS Result

0.015

Mercury

2456825 MS 60310232001 Spike Units Result Conc. mg/L

Qualifiers

08/01/19 11:41

0.015

LCS % Rec

0.014

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

Parameter

Analyzed

2456824 Units

Mercury

Reporting Limit

% Rec Limits 95

Qualifiers

80-120

2456826 MSD Spike Conc. 0.015

MS Result 0.015

MSD Result

MS % Rec

0.014

MSD % Rec 97

% Rec Limits

Max RPD RPD

75-125

Qual

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 08/01/2019 04:34 PM

without the written consent of Pace Analytical Services, LLC.

Page 6 of 10

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

25/49 1019 IPL Blue Valley

Pace Project No.:

60310232

QC Batch:

600271

Analysis Method:

EPA 6010

QC Batch Method:

EPA 3010

Analysis Description:

6010 MET TCLP

Associated Lab Samples: METHOD BLANK:

60310232001

2455620

Associated Lab Samples:

Matrix: Water

60310232001

Parameter

Blank Result

Units

Arsenic Barium Cadmium Chromium Lead Selenium Silver

mg/L mg/L mg/L mg/L mg/L mg/L mg/L

LABORATORY CONTROL SAMPLE: Parameter

ND ND ND ND ND ND ND

0.50 2.5 0.050 0.10 0.50 0.50 0.10

Spike Conc.

mg/L mg/L mg/L mg/L mg/L mg/L mg/L

LCS Result

10 10 10 10 10 10 5

Arsenic Barium Cadmium Chromium Lead Selenium Silver

2456771 MS 60310232001 Spike Units Result Conc. mg/L mg/L mg/L mg/L mg/L mg/L mg/L

Qualifiers

08/01/19 11:40 08/01/19 11:40 08/01/19 11:40 08/01/19 11:40 08/01/19 11:40 08/01/19 11:40 08/01/19 11:40

ND ND ND ND ND ND ND

10 10 10 10 10 10 5

LCS % Rec 9.7 10.1 9.8 10.2 10.3 10.2 5.0

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

Parameter

Analyzed

2456770 Units

Arsenic Barium Cadmium Chromium Lead Selenium Silver

Reporting Limit

% Rec Limits 97 101 98 102 103 102 101

Qualifiers

80-120 80-120 80-120 80-120 80-120 80-120 80-120

2456772 MSD Spike Conc. 10 10 10 10 10 10 5

MS Result 9.6 11.2 9.8 9.9 10.2 10.0 5.0

MSD Result

MS % Rec

9.7 11.3 9.8 10.0 10.2 10.1 5.0

96 97 98 99 102 100 99

MSD % Rec 97 98 98 100 102 101 100

% Rec Limits

Max RPD RPD

75-125 75-125 75-125 72-127 75-125 75-125 75-125

1 1 0 1 0 1 0

Qual

20 20 20 20 20 20 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 08/01/2019 04:34 PM

without the written consent of Pace Analytical Services, LLC.

Page 7 of 10

#=QL#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALIFIERS Project:

25/49 1019 IPL Blue Valley

Pace Project No.:

60310232

DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. LABORATORIES PASI-K

Pace Analytical Services - Kansas City

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 08/01/2019 04:34 PM

without the written consent of Pace Analytical Services, LLC.

Page 8 of 10

#=CR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA CROSS REFERENCE TABLE Project:

25/49 1019 IPL Blue Valley

Pace Project No.:

60310232

Lab ID

Sample ID

QC Batch Method

QC Batch

Analytical Method

Analytical Batch

60310232001

IPL TCLP 1

EPA 3010

600271

EPA 6010

600341

60310232001

IPL TCLP 1

EPA 7470

600286

EPA 7470

600304

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 08/01/2019 04:34 PM

without the written consent of Pace Analytical Services, LLC.

Page 9 of 10

Page 10 of 10

#=CL#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

LIMS USE: FR - ANDREA COLLIER LIMS OBJECT ID: 60310861

September 10, 2019

Andrea Collier Barr Engineering 1001 Diamond Ridge, Ste 1100 Jefferson City, MO 65109

RE: Project: IPL INDEPEDENDENCE Pace Project No.: 60310861 Dear Andrea Collier: Enclosed are the analytical results for sample(s) received by the laboratory on August 05, 2019. The results relate only to the samples included in this report. Results reported herein conform to the most current, applicable TNI/NELAC standards and the laboratory's Quality Assurance Manual, where applicable, unless otherwise noted in the body of the report. If you have any questions concerning this report, please feel free to contact me. Sincerely,

Angie Brown angie.brown@pacelabs.com 1(913)563-1402 Project Manager Enclosures cc: Kat Brookshire, Barr Engineering Company Andrea Nord, Barr Engineering Company Tony Schroer, Barr Engineering Company Margaret Treanor, Barr Engineering Company

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 1 of 48

#=CP#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

CERTIFICATIONS Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

Pennsylvania Certification IDs 1638 Roseytown Rd Suites 2,3&4, Greensburg, PA 15601 ANAB DOD-ELAP Rad Accreditation #: L2417 Alabama Certification #: 41590 Arizona Certification #: AZ0734 Arkansas Certification California Certification #: 04222CA Colorado Certification #: PA01547 Connecticut Certification #: PH-0694 Delaware Certification EPA Region 4 DW Rad Florida/TNI Certification #: E87683 Georgia Certification #: C040 Florida: Cert E871149 SEKS WET Guam Certification Hawaii Certification Idaho Certification Illinois Certification Indiana Certification Iowa Certification #: 391 Kansas/TNI Certification #: E-10358 Kentucky Certification #: KY90133 KY WW Permit #: KY0098221 KY WW Permit #: KY0000221 Louisiana DHH/TNI Certification #: LA180012 Louisiana DEQ/TNI Certification #: 4086 Maine Certification #: 2017020 Maryland Certification #: 308 Massachusetts Certification #: M-PA1457 Michigan/PADEP Certification #: 9991

Missouri Certification #: 235 Montana Certification #: Cert0082 Nebraska Certification #: NE-OS-29-14 Nevada Certification #: PA014572018-1 New Hampshire/TNI Certification #: 297617 New Jersey/TNI Certification #: PA051 New Mexico Certification #: PA01457 New York/TNI Certification #: 10888 North Carolina Certification #: 42706 North Dakota Certification #: R-190 Ohio EPA Rad Approval: #41249 Oregon/TNI Certification #: PA200002-010 Pennsylvania/TNI Certification #: 65-00282 Puerto Rico Certification #: PA01457 Rhode Island Certification #: 65-00282 South Dakota Certification Tennessee Certification #: 02867 Texas/TNI Certification #: T104704188-17-3 Utah/TNI Certification #: PA014572017-9 USDA Soil Permit #: P330-17-00091 Vermont Dept. of Health: ID# VT-0282 Virgin Island/PADEP Certification Virginia/VELAP Certification #: 9526 Washington Certification #: C868 West Virginia DEP Certification #: 143 West Virginia DHHR Certification #: 9964C Wisconsin Approve List for Rad Wyoming Certification #: 8TMS-L

Pace Analytical National Certification IDs 12065 Lebanon Road, Mt. Juliet, TN 37122 Alabama Certification #: 40660 Alaska Certification 17-026 Arizona Certification #: AZ0612 Arkansas Certification #: 88-0469 California Certification #: 2932 Canada Certification #: 1461.01 Colorado Certification #: TN00003 Connecticut Certification #: PH-0197

DOD Certification: #1461.01 EPA# TN00003 Florida Certification #: E87487 Georgia DW Certification #: 923 Georgia Certification: NELAP Idaho Certification #: TN00003 Illinois Certification #: 200008 Indiana Certification #: C-TN-01 Iowa Certification #: 364

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 2 of 48

#=CP#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

CERTIFICATIONS Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

Pace Analytical National Certification IDs Kansas Certification #: E-10277 Kentucky UST Certification #: 16 Kentucky Certification #: 90010 Louisiana Certification #: AI30792 Louisiana DW Certification #: LA180010 Maine Certification #: TN0002 Maryland Certification #: 324 Massachusetts Certification #: M-TN003 Michigan Certification #: 9958 Minnesota Certification #: 047-999-395 Mississippi Certification #: TN00003 Missouri Certification #: 340 Montana Certification #: CERT0086 Nebraska Certification #: NE-OS-15-05 Nevada Certification #: TN-03-2002-34 New Hampshire Certification #: 2975 New Jersey Certification #: TN002 New Mexico DW Certification New York Certification #: 11742 North Carolina Aquatic Toxicity Certification #: 41 North Carolina Drinking Water Certification #: 21704 North Carolina Environmental Certificate #: 375 North Dakota Certification #: R-140

Ohio VAP Certification #: CL0069 Oklahoma Certification #: 9915 Oregon Certification #: TN200002 Pennsylvania Certification #: 68-02979 Rhode Island Certification #: LAO00356 South Carolina Certification #: 84004 South Dakota Certification Tennessee DW/Chem/Micro Certification #: 2006 Texas Certification #: T 104704245-17-14 Texas Mold Certification #: LAB0152 USDA Soil Permit #: P330-15-00234 Utah Certification #: TN00003 Virginia Certification #: VT2006 Vermont Dept. of Health: ID# VT-2006 Virginia Certification #: 460132 Washington Certification #: C847 West Virginia Certification #: 233 Wisconsin Certification #: 9980939910 Wyoming UST Certification #: via A2LA 2926.01 A2LA-ISO 17025 Certification #: 1461.01 A2LA-ISO 17025 Certification #: 1461.02 AIHA-LAP/LLC EMLAP Certification #:100789

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 3 of 48

#=SS#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

SAMPLE SUMMARY Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

Lab ID

Sample ID

Matrix

Date Collected

Date Received

60310861001

BH-11-20FT

Solid

08/05/19 14:00

08/05/19 16:07

60310861002

BH-1-25FT

Solid

08/02/19 16:50

08/05/19 16:07

60310861003

BH-1-15FT

Solid

08/02/19 16:45

08/05/19 16:07

60310861004

BH-4-16FT

Solid

08/01/19 13:00

08/05/19 16:07

60310861005

BH-4-66FT

Solid

08/01/19 16:35

08/05/19 16:07

60310861006

BH-2-12FT

Solid

08/04/19 12:00

08/05/19 16:07

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 4 of 48

#=SA#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

SAMPLE ANALYTE COUNT Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861 Analytes Reported

Lab ID

Sample ID

Method

Analysts

60310861001

BH-11-20FT

EPA 6010

EMR

PASI-K

60310861002

60310861003

60310861004

BH-1-25FT

BH-1-15FT

BH-4-16FT

Laboratory

EPA 7471

JLH

PASI-K

ASTM D2974

DWC

PASI-K

EPA 901.1

MAH

PASI-PA

EPA 9045

CNB

PASI-K

SM 2540G

KBC

PAN

EPA 7199

LEB

PAN

EPA 9023

EEM

PAN

Trivalent Chromium Calculation

LDB

PASI-K

EPA 9056

MGS

PASI-K

EPA 9056

MGS

PASI-K

EPA 6010

EMR

PASI-K

EPA 7471

JLH

PASI-K

ASTM D2974

DWC

PASI-K

EPA 901.1

MAH

PASI-PA

EPA 9045

CNB

PASI-K

SM 2540G

KBC

PAN

EPA 7199

LEB

PAN

EPA 9023

EEM

PAN

Trivalent Chromium Calculation

LDB

PASI-K

EPA 9056

MGS

PASI-K

EPA 9056

MGS

PASI-K

EPA 6010

EMR

PASI-K

EPA 7471

JLH

PASI-K

ASTM D2974

DWC

PASI-K

EPA 901.1

MAH

PASI-PA

EPA 9045

CNB

PASI-K

SM 2540G

KBC

PAN

EPA 7199

LEB

PAN

EPA 9023

EEM

PAN

Trivalent Chromium Calculation

LDB

PASI-K

EPA 9056

MGS

PASI-K

EPA 9056

MGS

PASI-K

EPA 6010

EMR

PASI-K

EPA 7471

JLH

PASI-K

ASTM D2974

DWC

PASI-K

EPA 901.1

MAH

PASI-PA

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 5 of 48

#=SA#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

SAMPLE ANALYTE COUNT Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

Lab ID

60310861005

60310861006

Sample ID

BH-4-66FT

BH-2-12FT

Analytes Reported

Method

Analysts

Laboratory

EPA 9045

CNB

PASI-K

SM 2540G

KBC

PAN

EPA 7199

LEB

PAN

EPA 9023

EEM

PAN

Trivalent Chromium Calculation

LDB

PASI-K

EPA 9056

MGS

PASI-K

EPA 9056

MGS

PASI-K

EPA 6010

EMR

PASI-K

EPA 7471

JLH

PASI-K

ASTM D2974

DWC

PASI-K

EPA 901.1

MAH

PASI-PA

EPA 9045

CNB

PASI-K

SM 2540G

KBC

PAN

EPA 7199

LEB

PAN

EPA 9023

EEM

PAN

Trivalent Chromium Calculation

LDB

PASI-K

EPA 9056

MGS

PASI-K

EPA 9056

MGS

PASI-K

EPA 6010

EMR

PASI-K

EPA 7471

JLH

PASI-K

ASTM D2974

DWC

PASI-K

EPA 901.1

MAH

PASI-PA

EPA 9045

CNB

PASI-K

SM 2540G

KBC

PAN

EPA 7199

LEB

PAN

EPA 9023

EEM

PAN

Trivalent Chromium Calculation

LDB

PASI-K

EPA 9056

MGS

PASI-K

EPA 9056

MGS

PASI-K

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 6 of 48

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

Sample: BH-11-20FT

Lab ID: 60310861001

Collected: 08/05/19 14:00

Received: 08/05/19 16:07

Matrix: Solid

Results reported on a "dry weight" basis and are adjusted for percent moisture, sample size and any dilutions. Parameters 6010 MET ICP Red. Interference Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper Iron Lead Lithium Magnesium Manganese Molybdenum Nickel Selenium Silver Sodium Thallium Zinc 7471 Mercury Mercury Percent Moisture Percent Moisture 9045 pH Soil pH at 25 Degrees C Total Solids 2540 G-2011 Total Solids Wet Chemistry 7199 Chromium, Hexavalent Wet Chemistry 9023 Extractable Organic Halogens Trivalent Chromium Calculation Chromium, Trivalent

Results

Units

Report Limit

Prepared

Analyzed

CAS No.

08/08/19 14:16 08/08/19 14:16 08/08/19 14:16 08/08/19 14:16 08/08/19 14:16 08/08/19 14:16 08/08/19 14:16 08/08/19 14:16 08/08/19 14:16 08/08/19 14:16 08/08/19 14:16 08/08/19 14:16 08/08/19 14:16 08/08/19 14:16 08/08/19 14:16 08/08/19 14:16 08/08/19 14:16 08/08/19 14:16 08/08/19 14:16 08/08/19 14:16 08/08/19 14:16 08/08/19 14:16 08/08/19 14:16

7429-90-5 7440-36-0 7440-38-2 7440-39-3 7440-41-7 7440-42-8 7440-43-9 7440-70-2 7440-47-3 7440-48-4 7440-50-8 7439-89-6 7439-92-1 7439-93-2 7439-95-4 7439-96-5 7439-98-7 7440-02-0 7782-49-2 7440-22-4 7440-23-5 7440-28-0 7440-66-6

Qual

Analytical Method: EPA 6010 Preparation Method: EPA 3050 13200 ND 14.4 346 0.90 ND ND 3510 15.8 9.5 18.0 25500 14.6 9.1 3080 1270 ND 25.7 ND ND 368 ND 70.7

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

8.9 1.2 1.2 0.59 0.12 11.9 0.59 11.9 0.59 0.59 2.4 5.9 1.2 1.2 5.9 0.59 2.4 0.59 1.8 0.83 59.4 2.4 11.9

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

08/07/19 11:04 08/07/19 11:04 08/07/19 11:04 08/07/19 11:04 08/07/19 11:04 08/07/19 11:04 08/07/19 11:04 08/07/19 11:04 08/07/19 11:04 08/07/19 11:04 08/07/19 11:04 08/07/19 11:04 08/07/19 11:04 08/07/19 11:04 08/07/19 11:04 08/07/19 11:04 08/07/19 11:04 08/07/19 11:04 08/07/19 11:04 08/07/19 11:04 08/07/19 11:04 08/07/19 11:04 08/07/19 11:04

M1 M1 M1,R1

M1,R1

M1 M1,R1

Analytical Method: EPA 7471 Preparation Method: EPA 7471 ND

mg/kg

0.042

08/07/19 10:03 08/08/19 10:43 7439-97-6

0.50

08/06/19 16:15

0.10

08/09/19 11:22

Analytical Method: ASTM D2974 24.9

Analytical Method: EPA 9045 8.0

Std. Units

Analytical Method: SM 2540G Preparation Method: SM 2540 G 75.5

08/16/19 05:29 08/16/19 05:39

Analytical Method: EPA 7199 Preparation Method: 3060A ND

mg/kg

1.32

08/14/19 16:46 08/14/19 20:53 18540-29-9

Analytical Method: EPA 9023 Preparation Method: 9023 ND

mg/kg

33.1

08/10/19 14:16 08/12/19 10:39

Analytical Method: Trivalent Chromium Calculation 15.8

mg/kg

0.50

08/20/19 13:38 16065-83-1

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/10/2019 04:51 PM

without the written consent of Pace Analytical Services, LLC.

Page 7 of 48

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

Sample: BH-11-20FT

Lab ID: 60310861001

Collected: 08/05/19 14:00

Received: 08/05/19 16:07

Matrix: Solid

Results reported on a "dry weight" basis and are adjusted for percent moisture, sample size and any dilutions. Parameters 9056 IC Anions Chloride Fluoride Sulfate 9056 IC Anions Nitrate as N Nitrite as N

Results

Units

Report Limit

Prepared

Analyzed

CAS No.

Qual

Analytical Method: EPA 9056 Preparation Method: EPA 9056 ND ND ND

mg/kg mg/kg mg/kg

133 26.5 133

10 10 10

08/16/19 12:18 08/16/19 19:22 16887-00-6 08/16/19 12:18 08/16/19 19:22 16984-48-8 08/16/19 12:18 08/16/19 19:22 14808-79-8

Analytical Method: EPA 9056 Preparation Method: EPA 9056 ND ND

mg/kg mg/kg

13.3 13.3

10 10

08/16/19 12:18 08/16/19 19:22 14797-55-8 08/16/19 12:18 08/16/19 19:22 14797-65-0

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/10/2019 04:51 PM

without the written consent of Pace Analytical Services, LLC.

Page 8 of 48

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

Sample: BH-1-25FT

Lab ID: 60310861002

Collected: 08/02/19 16:50

Received: 08/05/19 16:07

Matrix: Solid

Results reported on a "dry weight" basis and are adjusted for percent moisture, sample size and any dilutions. Parameters 6010 MET ICP Red. Interference Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper Iron Lead Magnesium Manganese Molybdenum Nickel Selenium Silver Sodium Thallium Zinc 7471 Mercury Mercury Percent Moisture Percent Moisture 9045 pH Soil pH at 25 Degrees C Total Solids 2540 G-2011 Total Solids Wet Chemistry 7199 Chromium, Hexavalent Wet Chemistry 9023 Extractable Organic Halogens Trivalent Chromium Calculation Chromium, Trivalent

Results

Units

Report Limit

Prepared

Analyzed

CAS No.

08/08/19 14:22 08/08/19 14:22 08/08/19 14:22 08/08/19 14:22 08/08/19 14:22 08/08/19 14:22 08/08/19 14:22 08/08/19 14:22 08/08/19 14:22 08/08/19 14:22 08/08/19 14:22 08/08/19 14:22 08/08/19 14:22 08/08/19 14:22 08/08/19 14:22 08/08/19 14:22 08/08/19 14:22 08/08/19 14:22 08/08/19 14:22 08/08/19 14:22 08/08/19 14:22 08/08/19 14:22

7429-90-5 7440-36-0 7440-38-2 7440-39-3 7440-41-7 7440-42-8 7440-43-9 7440-70-2 7440-47-3 7440-48-4 7440-50-8 7439-89-6 7439-92-1 7439-95-4 7439-96-5 7439-98-7 7440-02-0 7782-49-2 7440-22-4 7440-23-5 7440-28-0 7440-66-6

Qual

Analytical Method: EPA 6010 Preparation Method: EPA 3050 20100 ND 6.4 135 0.92 ND ND 4590 25.5 11.5 17.6 20800 13.2 4030 282 ND 25.0 ND ND 87.0 ND 63.5

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

8.2 1.1 1.1 0.55 0.11 11.0 0.55 11.0 0.55 0.55 2.2 5.5 1.1 5.5 0.55 2.2 0.55 1.6 0.77 54.9 2.2 11.0

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

Analytical Method: EPA 7471 Preparation Method: EPA 7471 ND

mg/kg

0.049

08/07/19 10:03 08/08/19 10:46 7439-97-6

0.50

08/07/19 10:48

0.10

08/09/19 10:55

Analytical Method: ASTM D2974 21.5

Analytical Method: EPA 9045 7.3

Std. Units

Analytical Method: SM 2540G Preparation Method: SM 2540 G 78.3

08/16/19 05:29 08/16/19 05:39

Analytical Method: EPA 7199 Preparation Method: 3060A ND

mg/kg

1.28

08/14/19 16:46 08/14/19 20:58 18540-29-9

Analytical Method: EPA 9023 Preparation Method: 9023 ND

mg/kg

31.9

08/10/19 14:16 08/12/19 10:46

Analytical Method: Trivalent Chromium Calculation 25.5

mg/kg

0.50

08/20/19 13:38 16065-83-1

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/10/2019 04:51 PM

without the written consent of Pace Analytical Services, LLC.

Page 9 of 48

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

Sample: BH-1-25FT

Lab ID: 60310861002

Collected: 08/02/19 16:50

Received: 08/05/19 16:07

Matrix: Solid

Results

Units

Report Limit

Prepared

Analyzed

CAS No.

Qual

Analytical Method: EPA 9056 Preparation Method: EPA 9056 ND ND ND

mg/kg mg/kg mg/kg

125 25.1 125

10 10 10

08/16/19 12:18 08/16/19 20:41 16887-00-6 08/16/19 12:18 08/16/19 20:41 16984-48-8 08/16/19 12:18 08/16/19 20:41 14808-79-8

Analytical Method: EPA 9056 Preparation Method: EPA 9056 ND ND

mg/kg mg/kg

12.5 12.5

10 10

08/16/19 12:18 08/16/19 20:41 14797-55-8 08/16/19 12:18 08/16/19 20:41 14797-65-0

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/10/2019 04:51 PM

without the written consent of Pace Analytical Services, LLC.

Page 10 of 48

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

Sample: BH-1-15FT

Lab ID: 60310861003

Collected: 08/02/19 16:45

Received: 08/05/19 16:07

Matrix: Solid

Results reported on a "dry weight" basis and are adjusted for percent moisture, sample size and any dilutions. Parameters 6010 MET ICP Red. Interference Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper Iron Lead Magnesium Manganese Molybdenum Nickel Selenium Silver Sodium Thallium Zinc 7471 Mercury Mercury Percent Moisture Percent Moisture 9045 pH Soil pH at 25 Degrees C Total Solids 2540 G-2011 Total Solids Wet Chemistry 7199 Chromium, Hexavalent Wet Chemistry 9023 Extractable Organic Halogens Trivalent Chromium Calculation Chromium, Trivalent

Results

Units

Report Limit

Prepared

Analyzed

CAS No.

08/08/19 14:25 08/08/19 14:25 08/08/19 14:25 08/08/19 14:25 08/08/19 14:25 08/08/19 14:25 08/08/19 14:25 08/08/19 14:25 08/08/19 14:25 08/08/19 14:25 08/08/19 14:25 08/08/19 14:25 08/08/19 14:25 08/08/19 14:25 08/08/19 14:25 08/08/19 14:25 08/08/19 14:25 08/08/19 14:25 08/08/19 14:25 08/08/19 14:25 08/08/19 14:25 08/08/19 14:25

Qual

Analytical Method: EPA 6010 Preparation Method: EPA 3050 18200 ND 9.1 243 0.82 ND ND 3930 20.0 9.4 15.3 22600 13.8 3700 815 ND 21.7 ND ND 75.0 ND 67.9

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

7.5 1.0 1.0 0.50 0.10 10.0 0.50 10.0 0.50 0.50 2.0 5.0 1.0 5.0 0.50 2.0 0.50 1.5 0.70 50.1 2.0 10.0

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

Analytical Method: EPA 7471 Preparation Method: EPA 7471 ND

mg/kg

0.060

08/07/19 10:03 08/08/19 10:57 7439-97-6

0.50

08/07/19 10:48

0.10

08/09/19 10:51

Analytical Method: ASTM D2974 22.0

Analytical Method: EPA 9045 6.7

Std. Units

Analytical Method: SM 2540G Preparation Method: SM 2540 G 76.5

08/16/19 05:29 08/16/19 05:39

Analytical Method: EPA 7199 Preparation Method: 3060A ND

mg/kg

1.31

08/14/19 16:46 08/14/19 21:04 18540-29-9

Analytical Method: EPA 9023 Preparation Method: 9023 ND

mg/kg

32.7

08/10/19 14:16 08/12/19 10:53

Analytical Method: Trivalent Chromium Calculation 20.0

mg/kg

0.50

08/20/19 13:38 16065-83-1

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/10/2019 04:51 PM

without the written consent of Pace Analytical Services, LLC.

Page 11 of 48

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

Sample: BH-1-15FT

Lab ID: 60310861003

Collected: 08/02/19 16:45

Received: 08/05/19 16:07

Matrix: Solid

Results

Units

Report Limit

Prepared

Analyzed

CAS No.

Qual

Analytical Method: EPA 9056 Preparation Method: EPA 9056 ND ND ND

mg/kg mg/kg mg/kg

126 25.3 126

10 10 10

08/16/19 12:18 08/16/19 21:12 16887-00-6 08/16/19 12:18 08/16/19 21:12 16984-48-8 08/16/19 12:18 08/16/19 21:12 14808-79-8

Analytical Method: EPA 9056 Preparation Method: EPA 9056 ND ND

mg/kg mg/kg

12.6 12.6

10 10

08/16/19 12:18 08/16/19 21:12 14797-55-8 08/16/19 12:18 08/16/19 21:12 14797-65-0

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/10/2019 04:51 PM

without the written consent of Pace Analytical Services, LLC.

Page 12 of 48

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

Sample: BH-4-16FT

Lab ID: 60310861004

Collected: 08/01/19 13:00

Received: 08/05/19 16:07

Matrix: Solid

Results reported on a "dry weight" basis and are adjusted for percent moisture, sample size and any dilutions. Parameters 6010 MET ICP Red. Interference Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper Iron Lead Magnesium Manganese Molybdenum Nickel Selenium Silver Sodium Thallium Zinc 7471 Mercury Mercury Percent Moisture Percent Moisture 9045 pH Soil pH at 25 Degrees C Total Solids 2540 G-2011 Total Solids Wet Chemistry 7199 Chromium, Hexavalent Wet Chemistry 9023 Extractable Organic Halogens Trivalent Chromium Calculation Chromium, Trivalent

Results

Units

Report Limit

Prepared

Analyzed

CAS No.

08/08/19 14:31 08/08/19 14:31 08/08/19 14:31 08/08/19 14:31 08/08/19 14:31 08/08/19 14:31 08/08/19 14:31 08/08/19 14:31 08/08/19 14:31 08/08/19 14:31 08/08/19 14:31 08/08/19 14:31 08/08/19 14:31 08/08/19 14:31 08/08/19 14:31 08/08/19 14:31 08/08/19 14:31 08/08/19 14:31 08/08/19 14:31 08/08/19 14:31 08/08/19 14:31 08/08/19 14:31

Qual

Analytical Method: EPA 6010 Preparation Method: EPA 3050 21800 ND 6.8 224 0.88 ND ND 2980 22.2 9.6 14.9 21000 13.0 3700 704 ND 20.8 ND ND 110 ND 54.4

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

9.0 1.2 1.2 0.60 0.12 12.0 0.60 12.0 0.60 0.60 2.4 6.0 1.2 6.0 0.60 2.4 0.60 1.8 0.84 60.0 2.4 12.0

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

Analytical Method: EPA 7471 Preparation Method: EPA 7471 ND

mg/kg

0.055

08/07/19 10:03 08/08/19 10:59 7439-97-6

0.50

08/07/19 10:48

0.10

08/08/19 12:13

Analytical Method: ASTM D2974 19.9

Analytical Method: EPA 9045 6.9

Std. Units

Analytical Method: SM 2540G Preparation Method: SM 2540 G 79.3

08/16/19 05:29 08/16/19 05:39

Analytical Method: EPA 7199 Preparation Method: 3060A ND

mg/kg

1.26

08/14/19 16:46 08/14/19 21:09 18540-29-9

Analytical Method: EPA 9023 Preparation Method: 9023 ND

mg/kg

31.5

08/10/19 14:16 08/12/19 10:59

Analytical Method: Trivalent Chromium Calculation 22.2

mg/kg

0.50

08/20/19 13:38 16065-83-1

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/10/2019 04:51 PM

without the written consent of Pace Analytical Services, LLC.

Page 13 of 48

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

Sample: BH-4-16FT

Lab ID: 60310861004

Collected: 08/01/19 13:00

Received: 08/05/19 16:07

Matrix: Solid

Results

Units

Report Limit

Prepared

Analyzed

CAS No.

Qual

Analytical Method: EPA 9056 Preparation Method: EPA 9056 ND ND ND

mg/kg mg/kg mg/kg

126 25.1 126

10 10 10

08/16/19 12:18 08/16/19 21:28 16887-00-6 08/16/19 12:18 08/16/19 21:28 16984-48-8 08/16/19 12:18 08/16/19 21:28 14808-79-8

Analytical Method: EPA 9056 Preparation Method: EPA 9056 ND ND

mg/kg mg/kg

12.6 12.6

10 10

08/16/19 12:18 08/16/19 21:28 14797-55-8 08/16/19 12:18 08/16/19 21:28 14797-65-0

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/10/2019 04:51 PM

without the written consent of Pace Analytical Services, LLC.

Page 14 of 48

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

Sample: BH-4-66FT

Lab ID: 60310861005

Collected: 08/01/19 16:35

Received: 08/05/19 16:07

Matrix: Solid

Results reported on a "dry weight" basis and are adjusted for percent moisture, sample size and any dilutions. Parameters 6010 MET ICP Red. Interference Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper Iron Lead Magnesium Manganese Molybdenum Nickel Selenium Silver Sodium Thallium Zinc 7471 Mercury Mercury Percent Moisture Percent Moisture 9045 pH Soil pH at 25 Degrees C Total Solids 2540 G-2011 Total Solids Wet Chemistry 7199 Chromium, Hexavalent Wet Chemistry 9023 Extractable Organic Halogens Trivalent Chromium Calculation Chromium, Trivalent

Results

Units

Report Limit

Prepared

Analyzed

CAS No.

08/08/19 14:33 08/08/19 14:33 08/08/19 14:33 08/08/19 14:33 08/08/19 14:33 08/08/19 14:33 08/08/19 14:33 08/08/19 14:33 08/08/19 14:33 08/08/19 14:33 08/08/19 14:33 08/08/19 14:33 08/08/19 14:33 08/08/19 14:33 08/08/19 14:33 08/08/19 14:33 08/08/19 14:33 08/08/19 14:33 08/08/19 14:33 08/08/19 14:33 08/08/19 14:33 08/08/19 14:33

Qual

Analytical Method: EPA 6010 Preparation Method: EPA 3050 10700 ND 6.5 62.9 0.72 ND ND 15900 18.6 15.8 15.0 33200 5.2 6250 1070 ND 22.6 ND ND 377 ND 32.0

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

6.6 0.88 0.88 0.44 0.088 8.8 0.44 8.8 0.44 0.44 1.8 4.4 0.88 4.4 0.44 1.8 0.44 1.3 0.62 44.2 1.8 8.8

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

Analytical Method: EPA 7471 Preparation Method: EPA 7471 ND

mg/kg

0.052

08/07/19 10:03 08/08/19 11:02 7439-97-6

0.50

08/07/19 10:48

0.10

08/09/19 10:11

Analytical Method: ASTM D2974 13.0

Analytical Method: EPA 9045 8.2

Std. Units

Analytical Method: SM 2540G Preparation Method: SM 2540 G 87.7

08/15/19 11:49 08/15/19 11:57

Analytical Method: EPA 7199 Preparation Method: 3060A ND

mg/kg

1.14

08/14/19 16:46 08/14/19 21:24 18540-29-9

Analytical Method: EPA 9023 Preparation Method: 9023 ND

mg/kg

28.5

08/10/19 14:16 08/12/19 11:40

Analytical Method: Trivalent Chromium Calculation 18.6

mg/kg

0.50

08/20/19 13:38 16065-83-1

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/10/2019 04:51 PM

without the written consent of Pace Analytical Services, LLC.

Page 15 of 48

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

Sample: BH-4-66FT

Lab ID: 60310861005

Collected: 08/01/19 16:35

Received: 08/05/19 16:07

Matrix: Solid

Results

Units

Report Limit

Prepared

Analyzed

CAS No.

Qual

Analytical Method: EPA 9056 Preparation Method: EPA 9056 ND ND ND

mg/kg mg/kg mg/kg

114 22.9 114

10 10 10

08/16/19 12:18 08/16/19 21:44 16887-00-6 08/16/19 12:18 08/16/19 21:44 16984-48-8 08/16/19 12:18 08/16/19 21:44 14808-79-8

Analytical Method: EPA 9056 Preparation Method: EPA 9056 ND ND

mg/kg mg/kg

11.4 11.4

10 10

08/16/19 12:18 08/16/19 21:44 14797-55-8 08/16/19 12:18 08/16/19 21:44 14797-65-0

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/10/2019 04:51 PM

without the written consent of Pace Analytical Services, LLC.

Page 16 of 48

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

Sample: BH-2-12FT

Lab ID: 60310861006

Collected: 08/04/19 12:00

Received: 08/05/19 16:07

Matrix: Solid

Results reported on a "dry weight" basis and are adjusted for percent moisture, sample size and any dilutions. Parameters 6010 MET ICP Red. Interference Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper Iron Lead Magnesium Manganese Molybdenum Nickel Selenium Silver Sodium Thallium Zinc 7471 Mercury Mercury Percent Moisture Percent Moisture 9045 pH Soil pH at 25 Degrees C Total Solids 2540 G-2011 Total Solids Wet Chemistry 7199 Chromium, Hexavalent Wet Chemistry 9023 Extractable Organic Halogens Trivalent Chromium Calculation Chromium, Trivalent

Results

Units

Report Limit

Prepared

Analyzed

CAS No.

08/08/19 14:40 08/08/19 14:40 08/08/19 14:40 08/08/19 14:40 08/08/19 14:40 08/08/19 14:40 08/08/19 14:40 08/08/19 14:40 08/08/19 14:40 08/08/19 14:40 08/08/19 14:40 08/08/19 14:40 08/08/19 14:40 08/08/19 14:40 08/08/19 14:40 08/08/19 14:40 08/08/19 14:40 08/08/19 14:40 08/08/19 14:40 08/08/19 14:40 08/08/19 14:40 08/08/19 14:40

Qual

Analytical Method: EPA 6010 Preparation Method: EPA 3050 17600 ND 12.2 309 0.93 ND ND 3550 19.5 12.3 16.1 25400 17.1 3470 709 ND 20.4 ND ND 82.9 ND 60.7

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

8.7 1.2 1.2 0.58 0.12 11.7 0.58 11.7 0.58 0.58 2.3 5.8 1.2 5.8 0.58 2.3 0.58 1.7 0.82 58.3 2.3 11.7

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

Analytical Method: EPA 7471 Preparation Method: EPA 7471 ND

mg/kg

0.043

08/07/19 10:03 08/08/19 11:04 7439-97-6

0.50

08/08/19 13:41

0.10

08/09/19 10:59

Analytical Method: ASTM D2974 20.6

Analytical Method: EPA 9045 6.8

Std. Units

Analytical Method: SM 2540G Preparation Method: SM 2540 G 79.3

08/15/19 11:49 08/15/19 11:57

Analytical Method: EPA 7199 Preparation Method: 3060A ND

mg/kg

1.26

08/14/19 16:46 08/14/19 21:30 18540-29-9

Analytical Method: EPA 9023 Preparation Method: 9023 ND

mg/kg

31.5

08/10/19 14:16 08/12/19 11:46

Analytical Method: Trivalent Chromium Calculation 19.5

mg/kg

0.50

08/20/19 13:38 16065-83-1

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/10/2019 04:51 PM

without the written consent of Pace Analytical Services, LLC.

Page 17 of 48

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

Sample: BH-2-12FT

Lab ID: 60310861006

Collected: 08/04/19 12:00

Received: 08/05/19 16:07

Matrix: Solid

Results

Units

Report Limit

Prepared

Analyzed

CAS No.

Qual

Analytical Method: EPA 9056 Preparation Method: EPA 9056 ND ND ND

mg/kg mg/kg mg/kg

123 24.5 123

10 10 10

08/16/19 12:18 08/16/19 22:00 16887-00-6 08/16/19 12:18 08/16/19 22:00 16984-48-8 08/16/19 12:18 08/16/19 22:00 14808-79-8

Analytical Method: EPA 9056 Preparation Method: EPA 9056 ND ND

mg/kg mg/kg

12.3 12.3

10 10

08/16/19 12:18 08/16/19 22:00 14797-55-8 08/16/19 12:18 08/16/19 22:00 14797-65-0

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/10/2019 04:51 PM

without the written consent of Pace Analytical Services, LLC.

Page 18 of 48

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

QC Batch:

601571

Analysis Method:

EPA 7471

QC Batch Method:

EPA 7471

Analysis Description:

7471 Mercury

Associated Lab Samples: METHOD BLANK:

60310861001, 60310861002, 60310861003, 60310861004, 60310861005, 60310861006

2461152

Associated Lab Samples: Parameter

Matrix: Solid

60310861001, 60310861002, 60310861003, 60310861004, 60310861005, 60310861006 Blank Reporting Units Result Limit Analyzed Qualifiers

Mercury

mg/kg

LABORATORY CONTROL SAMPLE: Parameter

Spike Conc.

mg/kg

LCS Result

0.5

Mercury

2461154 MS 60310861002 Spike Units Result Conc.

mg/kg

0.47

LCS % Rec 0.53

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

Parameter

08/08/19 10:27

2461153 Units

Mercury

0.050

% Rec Limits 107

Qualifiers

80-120

2461155 MSD Spike Conc. 0.47

MS Result 0.49

MSD Result

MS % Rec

0.50

100

MSD % Rec 103

% Rec Limits

Max RPD RPD

75-125

Qual

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/10/2019 04:51 PM

without the written consent of Pace Analytical Services, LLC.

Page 19 of 48

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

QC Batch:

601536

Analysis Method:

EPA 6010

QC Batch Method:

EPA 3050

Analysis Description:

6010 MET

Associated Lab Samples: METHOD BLANK:

60310861001, 60310861002, 60310861003, 60310861004, 60310861005, 60310861006

2461028

Associated Lab Samples: Parameter

Matrix: Solid

60310861001, 60310861002, 60310861003, 60310861004, 60310861005, 60310861006 Blank Reporting Units Result Limit Analyzed Qualifiers

Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper Iron Lead Lithium Magnesium Manganese Molybdenum Nickel Selenium Silver Sodium Thallium Zinc

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

LABORATORY CONTROL SAMPLE: Parameter Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper Iron Lead

ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

7.5 1.0 1.0 0.50 0.10 10.0 0.50 10.0 0.50 0.50 2.0 5.0 1.0 1.0 5.0 0.50 2.0 0.50 1.5 0.70 50.0 2.0 10.0

08/08/19 14:14 08/08/19 14:14 08/08/19 14:14 08/08/19 14:14 08/08/19 14:14 08/08/19 14:14 08/08/19 14:14 08/08/19 14:14 08/08/19 14:14 08/08/19 14:14 08/08/19 14:14 08/08/19 14:14 08/08/19 14:14 08/08/19 14:14 08/08/19 14:14 08/08/19 14:14 08/08/19 14:14 08/08/19 14:14 08/08/19 14:14 08/08/19 14:14 08/08/19 14:14 08/08/19 14:14 08/08/19 14:14

2461029 Units mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

Spike Conc. 1000 100 100 100 100 100 100 1000 100 100 100 1000 100

LCS Result 1050 96.4 90.5 104 103 87.9 93.7 1050 99.9 99.5 95.3 1050 104

LCS % Rec

% Rec Limits 105 96 91 104 103 88 94 105 100 100 95 105 104

Qualifiers

80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/10/2019 04:51 PM

without the written consent of Pace Analytical Services, LLC.

Page 20 of 48

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

LABORATORY CONTROL SAMPLE: Parameter

2461029 Spike Conc.

Units

Lithium Magnesium Manganese Molybdenum Nickel Selenium Silver Sodium Thallium Zinc

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

LCS Result

100 1000 100 100 100 100 50 1000 100 100

104 990 96.5 103 100 90.0 49.0 1030 100 96.8

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

Parameter Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper Iron Lead Lithium Magnesium Manganese Molybdenum Nickel Selenium Silver Sodium Thallium Zinc

2461030 MS 60310861001 Spike Units Result Conc.

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

13200 ND 14.4 346 0.90 ND ND 3510 15.8 9.5 18.0 25500 14.6 9.1 3080 1270 ND 25.7 ND ND 368 ND 70.7

1250 125 125 125 125 125 125 1250 125 125 125 1250 125 125 1250 125 125 125 125 62.8 1250 125 125

LCS % Rec

% Rec Limits 104 99 96 103 100 90 98 103 100 97

Qualifiers

80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120

2461031 MSD Spike Conc. 1130 113 113 113 113 113 113 1130 113 113 113 1130 113 113 1130 113 113 113 113 56.4 1130 113 113

MS Result 20800 51.8 120 514 122 113 111 4830 138 123 131 27300 131 134 4900 1470 117 139 106 60.0 1600 110 184

MSD Result

MS % Rec

20100 51.2 103 416 111 107 100 4470 128 108 118 19700 115 123 4540 905 108 123 95.7 52.9 1480 99.9 161

610 41 84 133 96 84 88 106 98 90 90 141 93 100 145 156 92 91 84 96 98 87 90

MSD % Rec 615 45 79 61 97 88 88 86 99 87 88 -513 89 101 130 -326 94 86 85 94 99 88 80

% Rec Limits

Max RPD RPD

75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125

4 1 15 21 9 5 10 8 8 13 11 32 13 9 8 48 9 13 11 13 7 9 13

Qual

20 M1 20 M1 20 20 M1,R1 20 20 20 20 20 20 20 20 M1,R1 20 20 20 M1 20 M1,R1 20 20 20 20 20 20 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/10/2019 04:51 PM

without the written consent of Pace Analytical Services, LLC.

Page 21 of 48

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

QC Batch:

601389

Analysis Method:

ASTM D2974

QC Batch Method:

ASTM D2974

Analysis Description:

Dry Weight/Percent Moisture

Associated Lab Samples: METHOD BLANK:

60310861001

2460419

Associated Lab Samples: Parameter

Units

Percent Moisture

SAMPLE DUPLICATE:

Matrix: Solid

60310861001 Blank Result

Reporting Limit

Units

60310745001 Result

14.0

0.50

Analyzed

Qualifiers

08/06/19 16:13

2460420

Parameter Percent Moisture

Dup Result

Max RPD

RPD 13.9

Qualifiers 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/10/2019 04:51 PM

without the written consent of Pace Analytical Services, LLC.

Page 22 of 48

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

QC Batch:

601596

Analysis Method:

ASTM D2974

QC Batch Method:

ASTM D2974

Analysis Description:

Dry Weight/Percent Moisture

Associated Lab Samples: METHOD BLANK:

60310861002, 60310861003, 60310861004, 60310861005

2461203

Associated Lab Samples: Parameter Percent Moisture

SAMPLE DUPLICATE:

Matrix: Solid

60310861002, 60310861003, 60310861004, 60310861005 Blank Reporting Units Result Limit %

Units

60310861002 Result

21.5

0.50

Analyzed

Qualifiers

08/07/19 10:48

2461204

Parameter Percent Moisture

Dup Result

Max RPD

RPD 21.8

Qualifiers 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/10/2019 04:51 PM

without the written consent of Pace Analytical Services, LLC.

Page 23 of 48

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

QC Batch:

601905

Analysis Method:

ASTM D2974

QC Batch Method:

ASTM D2974

Analysis Description:

Dry Weight/Percent Moisture

Associated Lab Samples: METHOD BLANK:

60310861006

2462318

Associated Lab Samples: Parameter

Units

Percent Moisture

SAMPLE DUPLICATE:

Matrix: Solid

60310861006 Blank Result

Reporting Limit

Units

60310861006 Result

20.6

0.50

Analyzed

Qualifiers

08/08/19 13:41

2462319

Parameter Percent Moisture

Dup Result

Max RPD

RPD 19.9

Qualifiers 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/10/2019 04:51 PM

without the written consent of Pace Analytical Services, LLC.

Page 24 of 48

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

QC Batch:

601549

Analysis Method:

EPA 9045

QC Batch Method:

EPA 9045

Analysis Description:

9045 pH

Associated Lab Samples: SAMPLE DUPLICATE:

60310861004

2461069

Parameter pH at 25 Degrees C

60310591004 Result

Units Std. Units

12.9

Dup Result

Max RPD

RPD 12.9

Qualifiers 3

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/10/2019 04:51 PM

without the written consent of Pace Analytical Services, LLC.

Page 25 of 48

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

QC Batch:

602009

Analysis Method:

EPA 9045

QC Batch Method:

EPA 9045

Analysis Description:

9045 pH

Associated Lab Samples: SAMPLE DUPLICATE:

60310861001, 60310861002, 60310861003, 60310861005, 60310861006

2462643

Parameter pH at 25 Degrees C

60310708002 Result

Units Std. Units

8.0

Dup Result

Max RPD

RPD 8.0

Qualifiers 3 H1

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/10/2019 04:51 PM

without the written consent of Pace Analytical Services, LLC.

Page 26 of 48

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

QC Batch:

1329072

Analysis Method:

SM 2540G

QC Batch Method:

SM 2540 G

Analysis Description:

Total Solids 2540 G-2011

Associated Lab Samples: METHOD BLANK:

60310861001, 60310861002, 60310861003, 60310861004

R3441226-1

Associated Lab Samples: Parameter

Matrix: Solid

60310861001, 60310861002, 60310861003, 60310861004 Blank Reporting Units Result Limit

Total Solids

LABORATORY CONTROL SAMPLE: Parameter

Qualifiers

08/16/19 05:39

R3441226-2 Units

Total Solids

SAMPLE DUPLICATE:

0.00100

Analyzed

Spike Conc.

LCS Result

LCS % Rec

% Rec Limits

50.0

49.9

99.9

85.0-115

Units

L1127229-12 Result

Dup Result

RPD

Max RPD

87.8

Qualifiers

R3441226-3

Parameter Total Solids

88.0

0.253

Qualifiers 10

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/10/2019 04:51 PM

without the written consent of Pace Analytical Services, LLC.

Page 27 of 48

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

QC Batch:

1329074

Analysis Method:

SM 2540G

QC Batch Method:

SM 2540 G

Analysis Description:

Total Solids 2540 G-2011

Associated Lab Samples: METHOD BLANK:

60310861005, 60310861006

R3441100-1

Associated Lab Samples:

Matrix: Solid

60310861005, 60310861006

Parameter

Blank Result

Units

Total Solids

LABORATORY CONTROL SAMPLE: Parameter

SAMPLE DUPLICATE:

0.00100

Analyzed

Qualifiers

08/15/19 11:57

R3441100-2 Units

Total Solids

Reporting Limit

Spike Conc.

LCS Result

LCS % Rec

% Rec Limits

50.0

100

85.0-115

Units

L1127263-06 Result

Dup Result

RPD

Max RPD

95.9

Qualifiers

R3441100-3

Parameter Total Solids

95.6

0.317

Qualifiers 10

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/10/2019 04:51 PM

without the written consent of Pace Analytical Services, LLC.

Page 28 of 48

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

QC Batch:

1328260

Analysis Method:

EPA 7199

QC Batch Method:

3060A

Analysis Description:

Wet Chemistry 7199

Associated Lab Samples: METHOD BLANK:

60310861001, 60310861002, 60310861003, 60310861004, 60310861005, 60310861006

R3440626-1

Associated Lab Samples: Parameter

Matrix: Solid

60310861001, 60310861002, 60310861003, 60310861004, 60310861005, 60310861006 Blank Reporting Units Result Limit Analyzed Qualifiers

Chromium, Hexavalent

mg/kg

LABORATORY CONTROL SAMPLE: Parameter

Spike Conc.

mg/kg

LCS Result

10.0

Chromium, Hexavalent

Units

R3440626-5 MS L1127351-04 Spike Result Conc.

mg/kg

1.27

MATRIX SPIKE SAMPLE:

R3440626-7

Parameter

Units

Chromium, Hexavalent

SAMPLE DUPLICATE:

mg/kg

% Rec Limits

99.1

Qualifiers

80.0-120

R3440626-6 MSD Spike Conc. 25.9

L1127351-04 Result 1.27

MS Result 25.8

Spike Conc.

MSD Result

MS % Rec

25.8

94.6

MS Result

1270

MSD % Rec

% Rec Limits

Qual

94.7 75.0-125 0.117

% Rec Limits

Qualifiers

MS % Rec 864

Max RPD RPD

68.3

75.0-125 ML

R3440626-3

Parameter Chromium, Hexavalent

SAMPLE DUPLICATE:

25.9

LCS % Rec 9.91

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

Parameter

08/14/19 20:01

R3440626-2 Units

Chromium, Hexavalent

1.00

Units

L1127151-01 Result

mg/kg

1.37

Units

L1127351-02 Result

mg/kg

1.76

Dup Result

Max RPD

RPD 1.38

0.825

Qualifiers 20

R3440626-4

Parameter Chromium, Hexavalent

Dup Result

Max RPD

RPD 1.71

2.84

Qualifiers 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/10/2019 04:51 PM

without the written consent of Pace Analytical Services, LLC.

Page 29 of 48

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

QC Batch:

1326262

Analysis Method:

EPA 9023

QC Batch Method:

9023

Analysis Description:

Wet Chemistry 9023

Associated Lab Samples: METHOD BLANK:

60310861001, 60310861002, 60310861003, 60310861004, 60310861005, 60310861006

R3439584-1

Associated Lab Samples: Parameter

Matrix: Solid

60310861001, 60310861002, 60310861003, 60310861004, 60310861005, 60310861006 Blank Reporting Units Result Limit Analyzed Qualifiers

Extractable Organic Halogens

mg/kg

LABORATORY CONTROL SAMPLE: Parameter

Spike Conc.

mg/kg

LCS Result

250

R3439584-4 MS 60310861001 Spike Units Result Conc.

Extractable Organic Halogens

SAMPLE DUPLICATE:

mg/kg

1320

% Rec Limits 109

Qualifiers

85.0-115

R3439584-5 MSD Spike Conc. 1320

MS Result

MSD Result

1480

MS % Rec

1470

MSD % Rec

112

% Rec Limits

Max RPD RPD

111 80.0-120 0.530

Qual

R3439584-3

Parameter Extractable Organic Halogens

SAMPLE DUPLICATE:

LCS % Rec 273

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

Parameter

08/12/19 10:11

R3439584-2 Units

Extractable Organic Halogens

25.0

Units

60310861004 Result

mg/kg

Units

L1127378-02 Result

mg/kg

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

R3439584-6

Parameter Extractable Organic Halogens

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/10/2019 04:51 PM

without the written consent of Pace Analytical Services, LLC.

Page 30 of 48

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

QC Batch:

603987

Analysis Method:

EPA 9056

QC Batch Method:

EPA 9056

Analysis Description:

9056 IC Anions

Associated Lab Samples: METHOD BLANK:

60310861001, 60310861002, 60310861003, 60310861004, 60310861005, 60310861006

2469788

Associated Lab Samples: Parameter

Matrix: Solid

60310861001, 60310861002, 60310861003, 60310861004, 60310861005, 60310861006 Blank Reporting Units Result Limit Analyzed Qualifiers

Chloride Fluoride Sulfate

mg/kg mg/kg mg/kg

LABORATORY CONTROL SAMPLE: Parameter

ND ND ND

Spike Conc.

mg/kg mg/kg mg/kg

LCS Result

500 250 500

2469790 MS 60310861001 Spike Units Result Conc.

Chloride Fluoride Sulfate

mg/kg mg/kg mg/kg

SAMPLE DUPLICATE:

ND ND ND

LCS % Rec 470 250 498

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

Parameter

08/16/19 13:27 08/16/19 13:27 08/16/19 13:27

2469789 Units

Chloride Fluoride Sulfate

10.0 2.0 10.0

% Rec Limits 94 100 100

Qualifiers

80-120 80-120 80-120

2469791 MSD Spike Conc.

664 333 664

MS Result 642 303 668

MSD Result

MS % Rec

616 295 641

MSD % Rec

85 84 98

81 82 94

% Rec Limits

Max RPD RPD

80-120 80-120 80-120

4 3 4

Qual

15 15 15

2469792

Parameter Chloride Fluoride Sulfate

Units

60310861001 Result

mg/kg mg/kg mg/kg

ND ND ND

Dup Result

RPD

57.4J ND 44.4J

Max RPD

Qualifiers 15 15 15

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/10/2019 04:51 PM

without the written consent of Pace Analytical Services, LLC.

Page 31 of 48

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

QC Batch:

603678

Analysis Method:

EPA 9056

QC Batch Method:

EPA 9056

Analysis Description:

9056 IC Anions

Associated Lab Samples: METHOD BLANK:

60310861001, 60310861002, 60310861003, 60310861004, 60310861005, 60310861006

2468389

Associated Lab Samples: Parameter

Matrix: Solid

60310861001, 60310861002, 60310861003, 60310861004, 60310861005, 60310861006 Blank Reporting Units Result Limit Analyzed Qualifiers

Nitrate as N Nitrite as N

mg/kg mg/kg

LABORATORY CONTROL SAMPLE: Parameter

ND ND

Spike Conc.

mg/kg mg/kg

LCS Result

200 200

2468391 MS 60310861001 Spike Units Result Conc.

Nitrate as N Nitrite as N

mg/kg mg/kg

SAMPLE DUPLICATE:

ND ND

LCS % Rec 191 195

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

Parameter

08/16/19 13:27 08/16/19 13:27

2468390 Units

Nitrate as N Nitrite as N

1.0 1.0

% Rec Limits 95 98

Qualifiers

80-120 80-120

2468392 MSD Spike Conc.

266 266

MS Result

MSD Result

262 265

MS % Rec

251 255

MSD % Rec

99 100

95 96

% Rec Limits

Max RPD RPD

80-120 80-120

4 4

Qual

15 15

2468393

Parameter Nitrate as N Nitrite as N

Units

60310861002 Result

mg/kg mg/kg

ND ND

Dup Result

RPD ND ND

Max RPD

Qualifiers 15 15

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/10/2019 04:51 PM

without the written consent of Pace Analytical Services, LLC.

Page 32 of 48

#=ARR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS - RADIOCHEMISTRY Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

Sample: BH-11-20FT PWS:

Lab ID: 60310861001 Site ID:

Collected: 08/05/19 14:00 Sample Type:

Received: 08/05/19 16:07

Matrix: Solid

Results reported on a "dry-weight" basis Parameters

Method

Radium-226

EPA 901.1

Radium-228

EPA 901.1

Act ± Unc (MDC) Carr Trac 1.510 ± 0.332 (0.226) C:NA T:NA 1.687 ± 0.440 (0.197) C:NA T:NA

Units

Analyzed

CAS No.

Qual

pCi/g

09/09/19 16:29 13982-63-3

pCi/g

09/09/19 16:29 15262-20-1

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 33 of 48

#=ARR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS - RADIOCHEMISTRY Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

Sample: BH-1-25FT PWS:

Lab ID: 60310861002 Site ID:

Collected: 08/02/19 16:50 Sample Type:

Received: 08/05/19 16:07

Matrix: Solid

Results reported on a "dry-weight" basis Parameters

Method

Radium-226

EPA 901.1

Radium-228

EPA 901.1

Act ± Unc (MDC) Carr Trac 1.747 ± 0.354 (0.208) C:NA T:NA 1.531 ± 0.507 (0.389) C:NA T:NA

Units

Analyzed

CAS No.

Qual

pCi/g

09/09/19 16:45 13982-63-3

pCi/g

09/09/19 16:45 15262-20-1

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 34 of 48

#=ARR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS - RADIOCHEMISTRY Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

Sample: BH-1-15FT PWS:

Lab ID: 60310861003 Site ID:

Collected: 08/02/19 16:45 Sample Type:

Received: 08/05/19 16:07

Matrix: Solid

Results reported on a "dry-weight" basis Parameters

Method

Radium-226

EPA 901.1

Radium-228

EPA 901.1

Act ± Unc (MDC) Carr Trac 1.758 ± 0.334 (0.272) C:NA T:NA 1.732 ± 0.522 (0.332) C:NA T:NA

Units

Analyzed

CAS No.

Qual

pCi/g

09/09/19 17:05 13982-63-3

pCi/g

09/09/19 17:05 15262-20-1

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 35 of 48

#=ARR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS - RADIOCHEMISTRY Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

Sample: BH-4-16FT PWS:

Lab ID: 60310861004 Site ID:

Collected: 08/01/19 13:00 Sample Type:

Received: 08/05/19 16:07

Matrix: Solid

Results reported on a "dry-weight" basis Parameters

Method

Radium-226

EPA 901.1

Radium-228

EPA 901.1

Act ± Unc (MDC) Carr Trac 1.596 ± 0.316 (0.342) C:NA T:NA 1.780 ± 0.456 (0.414) C:NA T:NA

Units

Analyzed

CAS No.

Qual

pCi/g

09/09/19 17:23 13982-63-3

pCi/g

09/09/19 17:23 15262-20-1

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 36 of 48

#=ARR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS - RADIOCHEMISTRY Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

Sample: BH-4-66FT PWS:

Lab ID: 60310861005 Site ID:

Collected: 08/01/19 16:35 Sample Type:

Received: 08/05/19 16:07

Matrix: Solid

Results reported on a "dry-weight" basis Parameters

Method

Radium-226

EPA 901.1

Radium-228

EPA 901.1

Act ± Unc (MDC) Carr Trac 4.337 ± 0.763 (0.255) C:NA T:NA 1.559 ± 0.432 (0.335) C:NA T:NA

Units

Analyzed

CAS No.

Qual

pCi/g

09/09/19 17:39 13982-63-3

pCi/g

09/09/19 17:39 15262-20-1

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 37 of 48

#=ARR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS - RADIOCHEMISTRY Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

Sample: BH-2-12FT PWS:

Lab ID: 60310861006 Site ID:

Collected: 08/04/19 12:00 Sample Type:

Received: 08/05/19 16:07

Matrix: Solid

Results reported on a "dry-weight" basis Parameters

Method

Radium-226

EPA 901.1

Radium-228

EPA 901.1

Act ± Unc (MDC) Carr Trac 1.248 ± 0.376 (0.305) C:NA T:NA 1.722 ± 0.435 (0.275) C:NA T:NA

Units

Analyzed

CAS No.

Qual

pCi/g

09/09/19 18:03 13982-63-3

pCi/g

09/09/19 18:03 15262-20-1

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 38 of 48

#=QCR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL - RADIOCHEMISTRY Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

QC Batch:

358722

Analysis Method:

EPA 901.1

QC Batch Method:

EPA 901.1

Analysis Description:

901.1 Gamma Spec Ingrowth

Associated Lab Samples: METHOD BLANK:

1741838

Associated Lab Samples: Parameter Radium-226 Radium-228

60310861001, 60310861002, 60310861003, 60310861004, 60310861005, 60310861006 Matrix: Solid

60310861001, 60310861002, 60310861003, 60310861004, 60310861005, 60310861006 Act ± Unc (MDC) Carr Trac 0.077 ± 0.073 (0.177) C:NA T:NA 0.103 ± 0.086 (0.157) C:NA T:NA

Units pCi/g pCi/g

Analyzed

Qualifiers

09/06/19 10:30 Ra 09/06/19 10:30

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 39 of 48

#=QL#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALIFIERS Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Act - Activity Unc - Uncertainty: SDWA = 1.96 sigma count uncertainty, all other matrices = Expanded Uncertainty (95% confidence interval). Gamma Spec = Expanded Uncertainty (95.4% Confidence Interval) (MDC) - Minimum Detectable Concentration Trac - Tracer Recovery (%) Carr - Carrier Recovery (%) Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. LABORATORIES PAN

Pace Analytical National

PASI-K

Pace Analytical Services - Kansas City

PASI-PA

Pace Analytical Services - Greensburg

ANALYTE QUALIFIERS H1

Analysis conducted outside the EPA method holding time.

Sample was received or analysis requested beyond the recognized method holding time.

Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery. Matrix spike recovery and/or matrix spike duplicate recovery was below laboratory control limits. Result may be biased low. RPD value was outside control limits. The reported Ra-226 results were determined by hermetically sealing the dried, processed sample in an appropriatesized can. Each sample was stored for a minimum of 21 days to ensure that equilibrium between Ra-226 and daughters Bi-214 and Pb-214 was achieved. Reported Ra-226 results were inferred from gamma peaks attributable to Bi-214 and Pb-214.

ML R1 Ra

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/10/2019 04:51 PM

without the written consent of Pace Analytical Services, LLC.

Page 40 of 48

#=CR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA CROSS REFERENCE TABLE Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

Lab ID

Sample ID

QC Batch Method

QC Batch

Analytical Method

Analytical Batch

60310861001 60310861002 60310861003 60310861004 60310861005 60310861006

BH-11-20FT BH-1-25FT BH-1-15FT BH-4-16FT BH-4-66FT BH-2-12FT

EPA 3050 EPA 3050 EPA 3050 EPA 3050 EPA 3050 EPA 3050

601536 601536 601536 601536 601536 601536

EPA 6010 EPA 6010 EPA 6010 EPA 6010 EPA 6010 EPA 6010

601770 601770 601770 601770 601770 601770

60310861001 60310861002 60310861003 60310861004 60310861005 60310861006

BH-11-20FT BH-1-25FT BH-1-15FT BH-4-16FT BH-4-66FT BH-2-12FT

EPA 7471 EPA 7471 EPA 7471 EPA 7471 EPA 7471 EPA 7471

601571 601571 601571 601571 601571 601571

EPA 7471 EPA 7471 EPA 7471 EPA 7471 EPA 7471 EPA 7471

601666 601666 601666 601666 601666 601666

60310861001

BH-11-20FT

ASTM D2974

601389

60310861002 60310861003 60310861004 60310861005

BH-1-25FT BH-1-15FT BH-4-16FT BH-4-66FT

ASTM D2974 ASTM D2974 ASTM D2974 ASTM D2974

601596 601596 601596 601596

60310861006

BH-2-12FT

ASTM D2974

601905

60310861001 60310861002 60310861003 60310861004 60310861005 60310861006

BH-11-20FT BH-1-25FT BH-1-15FT BH-4-16FT BH-4-66FT BH-2-12FT

EPA 901.1 EPA 901.1 EPA 901.1 EPA 901.1 EPA 901.1 EPA 901.1

358722 358722 358722 358722 358722 358722

60310861001 60310861002 60310861003

BH-11-20FT BH-1-25FT BH-1-15FT

EPA 9045 EPA 9045 EPA 9045

602009 602009 602009

60310861004

BH-4-16FT

EPA 9045

601549

60310861005 60310861006

BH-4-66FT BH-2-12FT

EPA 9045 EPA 9045

602009 602009

60310861001 60310861002 60310861003 60310861004

BH-11-20FT BH-1-25FT BH-1-15FT BH-4-16FT

SM 2540 G SM 2540 G SM 2540 G SM 2540 G

1329072 1329072 1329072 1329072

SM 2540G SM 2540G SM 2540G SM 2540G

1329072 1329072 1329072 1329072

60310861005 60310861006

BH-4-66FT BH-2-12FT

SM 2540 G SM 2540 G

1329074 1329074

SM 2540G SM 2540G

1329074 1329074

60310861001 60310861002 60310861003 60310861004 60310861005 60310861006

BH-11-20FT BH-1-25FT BH-1-15FT BH-4-16FT BH-4-66FT BH-2-12FT

3060A 3060A 3060A 3060A 3060A 3060A

1328260 1328260 1328260 1328260 1328260 1328260

EPA 7199 EPA 7199 EPA 7199 EPA 7199 EPA 7199 EPA 7199

1328260 1328260 1328260 1328260 1328260 1328260

60310861001

BH-11-20FT

9023

1326262

EPA 9023

1326262

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/10/2019 04:51 PM

without the written consent of Pace Analytical Services, LLC.

Page 41 of 48

#=CR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA CROSS REFERENCE TABLE Project:

IPL INDEPEDENDENCE

Pace Project No.:

60310861

Lab ID

Sample ID

QC Batch Method

QC Batch

Analytical Method

Analytical Batch

60310861002 60310861003 60310861004 60310861005 60310861006

BH-1-25FT BH-1-15FT BH-4-16FT BH-4-66FT BH-2-12FT

9023 9023 9023 9023 9023

1326262 1326262 1326262 1326262 1326262

EPA 9023 EPA 9023 EPA 9023 EPA 9023 EPA 9023

1326262 1326262 1326262 1326262 1326262

60310861001

BH-11-20FT

604353

60310861002

BH-1-25FT

60310861003

BH-1-15FT

60310861004

BH-4-16FT

60310861005

BH-4-66FT

60310861006

BH-2-12FT

Trivalent Chromium Calculation Trivalent Chromium Calculation Trivalent Chromium Calculation Trivalent Chromium Calculation Trivalent Chromium Calculation Trivalent Chromium Calculation

60310861001 60310861002 60310861003 60310861004 60310861005 60310861006

BH-11-20FT BH-1-25FT BH-1-15FT BH-4-16FT BH-4-66FT BH-2-12FT

EPA 9056 EPA 9056 EPA 9056 EPA 9056 EPA 9056 EPA 9056

603987 603987 603987 603987 603987 603987

EPA 9056 EPA 9056 EPA 9056 EPA 9056 EPA 9056 EPA 9056

603991 603991 603991 603991 603991 603991

60310861001 60310861002 60310861003 60310861004 60310861005 60310861006

BH-11-20FT BH-1-25FT BH-1-15FT BH-4-16FT BH-4-66FT BH-2-12FT

EPA 9056 EPA 9056 EPA 9056 EPA 9056 EPA 9056 EPA 9056

603678 603678 603678 603678 603678 603678

EPA 9056 EPA 9056 EPA 9056 EPA 9056 EPA 9056 EPA 9056

603790 603790 603790 603790 603790 603790

604353 604353 604353 604353 604353

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/10/2019 04:51 PM

without the written consent of Pace Analytical Services, LLC.

Page 42 of 48

Page 43 of 48

Page 44 of 48

Page 45 of 48

Page 46 of 48

Page 47 13 of 48 14

Page 48 14 of 48 14

#=CL#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

LIMS USE: FR - ANDREA COLLIER LIMS OBJECT ID: 60311344

September 06, 2019

Andrea Collier Barr Engineering 1001 Diamond Ridge, Ste 1100 Jefferson City, MO 65109

RE: Project: IPL INDEPENDENCE Pace Project No.: 60311344 Dear Andrea Collier: Enclosed are the analytical results for sample(s) received by the laboratory on August 08, 2019. The results relate only to the samples included in this report. Results reported herein conform to the most current, applicable TNI/NELAC standards and the laboratory's Quality Assurance Manual, where applicable, unless otherwise noted in the body of the report. If you have any questions concerning this report, please feel free to contact me. Sincerely,

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 1 of 47

#=CP#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

CERTIFICATIONS Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 2 of 47

#=CP#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

CERTIFICATIONS Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 3 of 47

#=SS#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

SAMPLE SUMMARY Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

Lab ID

Sample ID

Matrix

Date Collected

Date Received

60311344001

MW-10

Water

08/08/19 14:41

08/08/19 17:00

60311344002

MW-8

Water

08/08/19 12:55

08/08/19 17:00

60311344003

MW-7

Water

08/08/19 11:40

08/08/19 17:00

60311344004

MW-9

Water

08/08/19 14:56

08/08/19 17:00

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 4 of 47

#=SA#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

SAMPLE ANALYTE COUNT Project:

IPL INDEPENDENCE

Pace Project No.:

60311344 Analytes Reported

Lab ID

Sample ID

Method

Analysts

60311344001

MW-10

EPA 6010

EMR

PASI-K

EPA 6010

EMR

PASI-K

EPA 7470

LRS

PASI-K

EPA 7470

LRS

PASI-K

EPA 903.1

MK1

PASI-PA

EPA 904.0

VAL

PASI-PA

60311344002

60311344003

MW-8

MW-7

Laboratory

SM 2540C

AJS

PASI-K

Trivalent Chromium Calculation

JMC1

PASI-K

Dissolved Trivalent Cr Calc.

JMC1

PASI-K

EPA 9020

VRP

PAN

EPA 300.0

MGS

PASI-K

EPA 353.2

LDB

PASI-K

EPA 410.4

MJK

PASI-K

SM 5310C

LDB

PASI-K

EPA 7196

LDB

PASI-K

EPA 7196

LDB

PASI-K

EPA 6010

EMR

PASI-K

EPA 6010

EMR

PASI-K

EPA 7470

LRS

PASI-K

EPA 7470

LRS

PASI-K

EPA 903.1

MK1

PASI-PA

EPA 904.0

VAL

PASI-PA

SM 2540C

AJS

PASI-K

Trivalent Chromium Calculation

JMC1

PASI-K

Dissolved Trivalent Cr Calc.

JMC1

PASI-K

EPA 9020

VRP

PAN

EPA 300.0

MGS

PASI-K

EPA 353.2

LDB

PASI-K

EPA 410.4

MJK

PASI-K

SM 5310C

LDB

PASI-K

EPA 7196

LDB

PASI-K

EPA 7196

LDB

PASI-K

EPA 6010

EMR

PASI-K

EPA 6010

EMR

PASI-K

EPA 7470

LRS

PASI-K

EPA 7470

LRS

PASI-K

EPA 903.1

MK1

PASI-PA

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 5 of 47

#=SA#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

SAMPLE ANALYTE COUNT Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

Lab ID

60311344004

Sample ID

MW-9

Analytes Reported

Method

Analysts

Laboratory

EPA 904.0

VAL

PASI-PA

SM 2540C

AJS

PASI-K

Trivalent Chromium Calculation

JMC1

PASI-K

Dissolved Trivalent Cr Calc.

JMC1

PASI-K

EPA 9020

VRP

PAN

EPA 300.0

MGS

PASI-K

EPA 353.2

LDB

PASI-K

EPA 410.4

MJK

PASI-K

SM 5310C

LDB

PASI-K

EPA 7196

LDB

PASI-K

EPA 7196

LDB

PASI-K

EPA 6010

EMR

PASI-K

EPA 6010

EMR

PASI-K

EPA 7470

LRS

PASI-K

EPA 7470

LRS

PASI-K

EPA 903.1

MK1

PASI-PA

EPA 904.0

VAL

PASI-PA

SM 2540C

AJS

PASI-K

Trivalent Chromium Calculation

JMC1

PASI-K

Dissolved Trivalent Cr Calc.

JMC1

PASI-K

EPA 9020

VRP

PAN

EPA 300.0

MGS

PASI-K

EPA 353.2

LDB

PASI-K

EPA 410.4

MJK

PASI-K

SM 5310C

LDB

PASI-K

EPA 7196

LDB

PASI-K

EPA 7196

LDB

PASI-K

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 6 of 47

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

Sample: MW-10 Parameters 6010 MET ICP Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper Iron Lead Lithium Magnesium Manganese Molybdenum Nickel Selenium Silver Sodium Thallium Hardness, Total(SM 2340B) Zinc 6010 MET ICP, Dissolved Aluminum, Dissolved Antimony, Dissolved Arsenic, Dissolved Barium, Dissolved Beryllium, Dissolved Boron, Dissolved Cadmium, Dissolved Chromium, Dissolved Cobalt, Dissolved Copper, Dissolved Iron, Dissolved Lead, Dissolved Lithium, Dissolved Magnesium, Dissolved Manganese, Dissolved Molybdenum, Dissolved Nickel, Dissolved Selenium, Dissolved Silver, Dissolved Sodium, Dissolved Thallium, Dissolved

Lab ID: 60311344001 Results

Units

Collected: 08/08/19 14:41 Report Limit

Received: 08/08/19 17:00

Prepared

Matrix: Water

Analyzed

CAS No.

08/13/19 19:03 08/13/19 19:03 08/13/19 19:03 08/13/19 19:03 08/13/19 19:03 08/13/19 19:03 08/13/19 19:03 08/13/19 19:03 08/13/19 19:03 08/13/19 19:03 08/13/19 19:03 08/13/19 19:03 08/13/19 19:03 08/13/19 19:03 08/13/19 19:03 08/13/19 19:03 08/13/19 19:03 08/13/19 19:03 08/13/19 19:03 08/13/19 19:03 08/13/19 19:03 08/13/19 19:03 08/13/19 19:03 08/13/19 19:03

08/13/19 18:30 08/13/19 18:30 08/13/19 18:30 08/13/19 18:30 08/13/19 18:30 08/13/19 18:30 08/13/19 18:30 08/13/19 18:30 08/13/19 18:30 08/13/19 18:30 08/13/19 18:30 08/13/19 18:30 08/13/19 18:30 08/13/19 18:30 08/13/19 18:30 08/13/19 18:30 08/13/19 18:30 08/13/19 18:30 08/13/19 18:30 08/13/19 18:30 08/13/19 18:30

7429-90-5 7440-36-0 7440-38-2 7440-39-3 7440-41-7 7440-42-8 7440-43-9 7440-47-3 7440-48-4 7440-50-8 7439-89-6 7439-92-1 7439-93-2 7439-95-4 7439-96-5 7439-98-7 7440-02-0 7782-49-2 7440-22-4 7440-23-5 7440-28-0

Qual

Analytical Method: EPA 6010 Preparation Method: EPA 3010 683 ND 37.0 564 ND 127 ND 71900 ND ND ND 22100 ND 19.7 16200 883 ND ND ND ND 63400 ND 246000 ND

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

75.0 15.0 10.0 5.0 1.0 100 5.0 200 5.0 5.0 10.0 50.0 10.0 10.0 50.0 5.0 20.0 5.0 15.0 7.0 500 20.0 705 50.0

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

08/13/19 08:58 08/13/19 08:58 08/13/19 08:58 08/13/19 08:58 08/13/19 08:58 08/13/19 08:58 08/13/19 08:58 08/13/19 08:58 08/13/19 08:58 08/13/19 08:58 08/13/19 08:58 08/13/19 08:58 08/13/19 08:58 08/13/19 08:58 08/13/19 08:58 08/13/19 08:58 08/13/19 08:58 08/13/19 08:58 08/13/19 08:58 08/13/19 08:58 08/13/19 08:58 08/13/19 08:58 08/13/19 08:58 08/13/19 08:58

7440-66-6

Analytical Method: EPA 6010 Preparation Method: EPA 3010 ND ND 32.8 555 ND 122 ND ND ND ND 21300 ND 19.2 16000 817 ND ND ND ND 63400 ND

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

75.0 15.0 10.0 5.0 1.0 100 5.0 5.0 5.0 10.0 50.0 10.0 10.0 50.0 5.0 20.0 5.0 15.0 7.0 500 20.0

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/06/2019 11:25 AM

without the written consent of Pace Analytical Services, LLC.

Page 7 of 47

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

Sample: MW-10 Parameters 6010 MET ICP, Dissolved Zinc, Dissolved 7470 Mercury Mercury 7470 Mercury, Dissolved Mercury, Dissolved 2540C Total Dissolved Solids Total Dissolved Solids Trivalent Chromium Calculation Chromium, Trivalent Dissolved Trivalent Cr Calc. Chromium, Trivalent, Dissolved Wet Chemistry 9020B Total Organic Halides 300.0 IC Anions 28 Days Chloride Fluoride Sulfate 353.2 Nitrogen, NO2/NO3 unpres Nitrogen, NO2 plus NO3 Nitrogen, Nitrate Nitrogen, Nitrite 410.4 COD Chemical Oxygen Demand 5310C TOC Total Organic Carbon 7196 Chromium, Hexavalent Chromium, Hexavalent 7196 Chromium, Hexavalent Diss Chromium, Hexavalent,Dissolved

Lab ID: 60311344001 Results

Collected: 08/08/19 14:41

Units

Report Limit

Received: 08/08/19 17:00

Prepared

Matrix: Water

Analyzed

CAS No.

Qual

Analytical Method: EPA 6010 Preparation Method: EPA 3010 ND

ug/L

50.0

08/13/19 08:58 08/13/19 18:30 7440-66-6

Analytical Method: EPA 7470 Preparation Method: EPA 7470 ND

ug/L

0.20

08/14/19 13:55 08/15/19 14:24 7439-97-6

Analytical Method: EPA 7470 Preparation Method: EPA 7470 ND

ug/L

0.20

10.0

08/14/19 13:55 08/15/19 13:13 7439-97-6

Analytical Method: SM 2540C 434

mg/L

08/14/19 10:58

Analytical Method: Trivalent Chromium Calculation ND

mg/L

0.010

08/29/19 16:15 16065-83-1

08/29/19 16:16 16065-83-1

Analytical Method: Dissolved Trivalent Cr Calc. ND

mg/L

0.010

Analytical Method: EPA 9020 Preparation Method: 9020B ND

ug/L

100

08/16/19 09:56 08/16/19 09:56

1.0 0.20 1.0

1 1 1

08/20/19 22:47 16887-00-6 08/20/19 22:47 16984-48-8 08/20/19 22:47 14808-79-8

0.10 0.10 0.10

1 1 1

08/09/19 08:19 08/09/19 08:19 14797-55-8 08/09/19 08:19 14797-65-0

Analytical Method: EPA 300.0 2.9 0.30 2.4

mg/L mg/L mg/L

Analytical Method: EPA 353.2 ND ND ND

mg/L mg/L mg/L

Analytical Method: EPA 410.4 Preparation Method: EPA 410.4 29.8

mg/L

10.0

08/20/19 16:39 08/21/19 14:06

1.0

08/13/19 20:49 7440-44-0

0.010

08/09/19 09:41 18540-29-9

0.010

08/09/19 09:37 18540-29-9

Analytical Method: SM 5310C 5.5

mg/L

Analytical Method: EPA 7196 ND

mg/L

Analytical Method: EPA 7196 ND

mg/L

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/06/2019 11:25 AM

without the written consent of Pace Analytical Services, LLC.

Page 8 of 47

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

Sample: MW-8 Parameters 6010 MET ICP Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper Iron Lead Lithium Magnesium Manganese Molybdenum Nickel Selenium Silver Sodium Thallium Hardness, Total(SM 2340B) Zinc 6010 MET ICP, Dissolved Aluminum, Dissolved Antimony, Dissolved Arsenic, Dissolved Barium, Dissolved Beryllium, Dissolved Boron, Dissolved Cadmium, Dissolved Chromium, Dissolved Cobalt, Dissolved Copper, Dissolved Iron, Dissolved Lead, Dissolved Lithium, Dissolved Magnesium, Dissolved Manganese, Dissolved Molybdenum, Dissolved Nickel, Dissolved Selenium, Dissolved Silver, Dissolved Sodium, Dissolved Thallium, Dissolved

Lab ID: 60311344002 Results

Units

Collected: 08/08/19 12:55 Report Limit

Received: 08/08/19 17:00

Prepared

Matrix: Water

Analyzed

CAS No.

08/13/19 19:05 08/13/19 19:05 08/13/19 19:05 08/13/19 19:05 08/13/19 19:05 08/13/19 19:05 08/13/19 19:05 08/13/19 19:05 08/13/19 19:05 08/13/19 19:05 08/13/19 19:05 08/13/19 19:05 08/13/19 19:05 08/13/19 19:05 08/13/19 19:05 08/13/19 19:05 08/13/19 19:05 08/13/19 19:05 08/13/19 19:05 08/13/19 19:05 08/13/19 19:05 08/13/19 19:05 08/13/19 19:05 08/13/19 19:05

08/13/19 18:32 08/13/19 18:32 08/13/19 18:32 08/13/19 18:32 08/13/19 18:32 08/13/19 18:32 08/13/19 18:32 08/13/19 18:32 08/13/19 18:32 08/13/19 18:32 08/13/19 18:32 08/13/19 18:32 08/13/19 18:32 08/13/19 18:32 08/13/19 18:32 08/13/19 18:32 08/13/19 18:32 08/13/19 18:32 08/13/19 18:32 08/13/19 18:32 08/13/19 18:32

Qual

Analytical Method: EPA 6010 Preparation Method: EPA 3010 222 ND 11.3 1010 ND ND ND 172000 ND ND ND 14300 ND 19.3 33500 4330 ND ND ND ND 11000 ND 568000 ND

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

75.0 15.0 10.0 5.0 1.0 100 5.0 200 5.0 5.0 10.0 50.0 10.0 10.0 50.0 5.0 20.0 5.0 15.0 7.0 500 20.0 705 50.0

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

7440-66-6

Analytical Method: EPA 6010 Preparation Method: EPA 3010 ND ND 13.2 1020 ND ND ND ND ND ND 11900 ND 18.2 33600 4390 ND ND ND ND 11000 ND

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

75.0 15.0 10.0 5.0 1.0 100 5.0 5.0 5.0 10.0 50.0 10.0 10.0 50.0 5.0 20.0 5.0 15.0 7.0 500 20.0

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

D9 D9

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/06/2019 11:25 AM

without the written consent of Pace Analytical Services, LLC.

Page 9 of 47

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

Sample: MW-8 Parameters 6010 MET ICP, Dissolved Zinc, Dissolved 7470 Mercury Mercury 7470 Mercury, Dissolved Mercury, Dissolved 2540C Total Dissolved Solids Total Dissolved Solids Trivalent Chromium Calculation Chromium, Trivalent Dissolved Trivalent Cr Calc. Chromium, Trivalent, Dissolved Wet Chemistry 9020B Total Organic Halides 300.0 IC Anions 28 Days Chloride Fluoride Sulfate 353.2 Nitrogen, NO2/NO3 unpres Nitrogen, NO2 plus NO3 Nitrogen, Nitrate Nitrogen, Nitrite 410.4 COD Chemical Oxygen Demand 5310C TOC Total Organic Carbon 7196 Chromium, Hexavalent Chromium, Hexavalent 7196 Chromium, Hexavalent Diss Chromium, Hexavalent,Dissolved

Lab ID: 60311344002 Results

Collected: 08/08/19 12:55

Units

Report Limit

Received: 08/08/19 17:00

Prepared

Matrix: Water

Analyzed

CAS No.

Qual

Analytical Method: EPA 6010 Preparation Method: EPA 3010 ND

ug/L

50.0

08/13/19 08:58 08/13/19 18:32 7440-66-6

Analytical Method: EPA 7470 Preparation Method: EPA 7470 ND

ug/L

0.20

08/14/19 13:55 08/15/19 14:26 7439-97-6

Analytical Method: EPA 7470 Preparation Method: EPA 7470 ND

ug/L

0.20

10.0

08/14/19 13:55 08/15/19 13:16 7439-97-6

Analytical Method: SM 2540C 752

mg/L

08/14/19 10:58

Analytical Method: Trivalent Chromium Calculation ND

mg/L

0.010

08/29/19 16:15 16065-83-1

08/29/19 16:16 16065-83-1

Analytical Method: Dissolved Trivalent Cr Calc. ND

mg/L

0.010

Analytical Method: EPA 9020 Preparation Method: 9020B ND

ug/L

100

08/16/19 10:14 08/16/19 10:14

10.0 0.20 20.0

10 1 20

08/20/19 23:50 16887-00-6 08/20/19 23:35 16984-48-8 08/21/19 13:07 14808-79-8

0.10 0.10 0.10

1 1 1

08/09/19 08:18 08/09/19 08:18 14797-55-8 08/09/19 08:18 14797-65-0

Analytical Method: EPA 300.0 33.7 ND 220

mg/L mg/L mg/L

Analytical Method: EPA 353.2 ND ND ND

mg/L mg/L mg/L

Analytical Method: EPA 410.4 Preparation Method: EPA 410.4 12.4

mg/L

10.0

08/20/19 16:39 08/21/19 14:06

1.0

08/13/19 21:02 7440-44-0

0.010

08/09/19 09:40 18540-29-9

0.010

08/09/19 09:37 18540-29-9

Analytical Method: SM 5310C ND

mg/L

Analytical Method: EPA 7196 ND

mg/L

Analytical Method: EPA 7196 ND

mg/L

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/06/2019 11:25 AM

without the written consent of Pace Analytical Services, LLC.

Page 10 of 47

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

Sample: MW-7 Parameters 6010 MET ICP Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper Iron Lead Lithium Magnesium Manganese Molybdenum Nickel Selenium Silver Sodium Thallium Hardness, Total(SM 2340B) Zinc 6010 MET ICP, Dissolved Aluminum, Dissolved Antimony, Dissolved Arsenic, Dissolved Barium, Dissolved Beryllium, Dissolved Boron, Dissolved Cadmium, Dissolved Chromium, Dissolved Cobalt, Dissolved Copper, Dissolved Iron, Dissolved Lead, Dissolved Lithium, Dissolved Magnesium, Dissolved Manganese, Dissolved Molybdenum, Dissolved Nickel, Dissolved Selenium, Dissolved Silver, Dissolved Sodium, Dissolved Thallium, Dissolved

Lab ID: 60311344003 Results

Units

Collected: 08/08/19 11:40 Report Limit

Received: 08/08/19 17:00

Prepared

Matrix: Water

Analyzed

CAS No.

08/13/19 19:12 08/13/19 19:12 08/13/19 19:12 08/13/19 19:12 08/13/19 19:12 08/13/19 19:12 08/13/19 19:12 08/13/19 19:12 08/13/19 19:12 08/13/19 19:12 08/13/19 19:12 08/13/19 19:12 08/13/19 19:12 08/13/19 19:12 08/13/19 19:12 08/13/19 19:12 08/13/19 19:12 08/13/19 19:12 08/13/19 19:12 08/13/19 19:12 08/13/19 19:12 08/13/19 19:12 08/13/19 19:12 08/13/19 19:12

08/13/19 18:34 08/13/19 18:34 08/13/19 18:34 08/13/19 18:34 08/13/19 18:34 08/13/19 18:34 08/13/19 18:34 08/13/19 18:34 08/13/19 18:34 08/13/19 18:34 08/13/19 18:34 08/13/19 18:34 08/13/19 18:34 08/13/19 18:34 08/13/19 18:34 08/13/19 18:34 08/13/19 18:34 08/13/19 18:34 08/13/19 18:34 08/13/19 18:34 08/13/19 18:34

Qual

Analytical Method: EPA 6010 Preparation Method: EPA 3010 112 ND ND 205 ND 1460 ND 149000 ND ND ND 4810 ND 12.8 23900 8480 ND 7.8 ND ND 22000 ND 471000 ND

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

75.0 15.0 10.0 5.0 1.0 100 5.0 200 5.0 5.0 10.0 50.0 10.0 10.0 50.0 5.0 20.0 5.0 15.0 7.0 500 20.0 705 50.0

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

7440-66-6

Analytical Method: EPA 6010 Preparation Method: EPA 3010 ND ND ND 198 ND 1570 ND ND ND ND 4360 ND 12.1 23800 8410 ND 8.9 ND ND 23600 ND

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

75.0 15.0 10.0 5.0 1.0 100 5.0 5.0 5.0 10.0 50.0 10.0 10.0 50.0 5.0 20.0 5.0 15.0 7.0 500 20.0

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/06/2019 11:25 AM

without the written consent of Pace Analytical Services, LLC.

Page 11 of 47

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

Sample: MW-7 Parameters 6010 MET ICP, Dissolved Zinc, Dissolved 7470 Mercury Mercury 7470 Mercury, Dissolved Mercury, Dissolved 2540C Total Dissolved Solids Total Dissolved Solids Trivalent Chromium Calculation Chromium, Trivalent Dissolved Trivalent Cr Calc. Chromium, Trivalent, Dissolved Wet Chemistry 9020B Total Organic Halides 300.0 IC Anions 28 Days Chloride Fluoride Sulfate 353.2 Nitrogen, NO2/NO3 unpres Nitrogen, NO2 plus NO3 Nitrogen, Nitrate Nitrogen, Nitrite 410.4 COD Chemical Oxygen Demand 5310C TOC Total Organic Carbon 7196 Chromium, Hexavalent Chromium, Hexavalent 7196 Chromium, Hexavalent Diss Chromium, Hexavalent,Dissolved

Lab ID: 60311344003 Results

Collected: 08/08/19 11:40

Units

Report Limit

Received: 08/08/19 17:00

Prepared

Matrix: Water

Analyzed

CAS No.

Qual

Analytical Method: EPA 6010 Preparation Method: EPA 3010 ND

ug/L

50.0

08/13/19 08:58 08/13/19 18:34 7440-66-6

Analytical Method: EPA 7470 Preparation Method: EPA 7470 ND

ug/L

0.20

08/14/19 13:55 08/15/19 14:29 7439-97-6

Analytical Method: EPA 7470 Preparation Method: EPA 7470 ND

ug/L

0.20

10.0

08/14/19 13:55 08/15/19 13:18 7439-97-6

Analytical Method: SM 2540C 721

mg/L

08/14/19 10:58

Analytical Method: Trivalent Chromium Calculation ND

mg/L

0.010

08/29/19 16:15 16065-83-1

08/29/19 16:16 16065-83-1

Analytical Method: Dissolved Trivalent Cr Calc. ND

mg/L

0.010

Analytical Method: EPA 9020 Preparation Method: 9020B ND

ug/L

100

08/16/19 10:33 08/16/19 10:33

10.0 0.20 20.0

10 1 20

08/21/19 00:38 16887-00-6 08/21/19 13:22 16984-48-8 08/21/19 13:37 14808-79-8

0.10 0.10 0.10

1 1 1

08/09/19 08:14 08/09/19 08:14 14797-55-8 08/09/19 08:14 14797-65-0

Analytical Method: EPA 300.0 53.2 0.23 271

mg/L mg/L mg/L

Analytical Method: EPA 353.2 ND ND ND

mg/L mg/L mg/L

Analytical Method: EPA 410.4 Preparation Method: EPA 410.4 19.9

mg/L

10.0

08/20/19 16:39 08/21/19 14:06

1.0

08/13/19 21:15 7440-44-0

0.010

08/09/19 09:39 18540-29-9

0.010

08/09/19 09:36 18540-29-9

Analytical Method: SM 5310C ND

mg/L

Analytical Method: EPA 7196 ND

mg/L

Analytical Method: EPA 7196 ND

mg/L

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/06/2019 11:25 AM

without the written consent of Pace Analytical Services, LLC.

Page 12 of 47

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

Sample: MW-9 Parameters 6010 MET ICP Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper Iron Lead Lithium Magnesium Manganese Molybdenum Nickel Selenium Silver Sodium Thallium Hardness, Total(SM 2340B) Zinc 6010 MET ICP, Dissolved Aluminum, Dissolved Antimony, Dissolved Arsenic, Dissolved Barium, Dissolved Beryllium, Dissolved Boron, Dissolved Cadmium, Dissolved Chromium, Dissolved Cobalt, Dissolved Copper, Dissolved Iron, Dissolved Lead, Dissolved Lithium, Dissolved Magnesium, Dissolved Manganese, Dissolved Molybdenum, Dissolved Nickel, Dissolved Selenium, Dissolved Silver, Dissolved Sodium, Dissolved Thallium, Dissolved

Lab ID: 60311344004 Results

Units

Collected: 08/08/19 14:56 Report Limit

Received: 08/08/19 17:00

Prepared

Matrix: Water

Analyzed

CAS No.

08/13/19 19:14 08/13/19 19:14 08/13/19 19:14 08/13/19 19:14 08/13/19 19:14 08/13/19 19:14 08/13/19 19:14 08/13/19 19:14 08/13/19 19:14 08/13/19 19:14 08/13/19 19:14 08/13/19 19:14 08/13/19 19:14 08/13/19 19:14 08/13/19 19:14 08/13/19 19:14 08/13/19 19:14 08/13/19 19:14 08/13/19 19:14 08/13/19 19:14 08/13/19 19:14 08/13/19 19:14 08/13/19 19:14 08/13/19 19:14

08/13/19 18:36 08/13/19 18:36 08/13/19 18:36 08/13/19 18:36 08/13/19 18:36 08/13/19 18:36 08/13/19 18:36 08/13/19 18:36 08/13/19 18:36 08/13/19 18:36 08/13/19 18:36 08/13/19 18:36 08/13/19 18:36 08/13/19 18:36 08/13/19 18:36 08/13/19 18:36 08/13/19 18:36 08/13/19 18:36 08/13/19 18:36 08/13/19 18:36 08/13/19 18:36

Qual

Analytical Method: EPA 6010 Preparation Method: EPA 3010 199 ND 30.6 630 ND ND ND 137000 ND ND ND 7530 ND ND 36400 2370 ND ND ND ND 75100 ND 493000 ND

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

75.0 15.0 10.0 5.0 1.0 100 5.0 200 5.0 5.0 10.0 50.0 10.0 10.0 50.0 5.0 20.0 5.0 15.0 7.0 500 20.0 705 50.0

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

7440-66-6

Analytical Method: EPA 6010 Preparation Method: EPA 3010 ND ND 29.3 637 ND ND ND ND ND ND 6780 ND ND 36800 2390 ND ND ND ND 78300 ND

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

75.0 15.0 10.0 5.0 1.0 100 5.0 5.0 5.0 10.0 50.0 10.0 10.0 50.0 5.0 20.0 5.0 15.0 7.0 500 20.0

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

D9 D9

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/06/2019 11:25 AM

without the written consent of Pace Analytical Services, LLC.

Page 13 of 47

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

Sample: MW-9 Parameters 6010 MET ICP, Dissolved Zinc, Dissolved 7470 Mercury Mercury 7470 Mercury, Dissolved Mercury, Dissolved 2540C Total Dissolved Solids Total Dissolved Solids Trivalent Chromium Calculation Chromium, Trivalent Dissolved Trivalent Cr Calc. Chromium, Trivalent, Dissolved Wet Chemistry 9020B Total Organic Halides 300.0 IC Anions 28 Days Chloride Fluoride Sulfate 353.2 Nitrogen, NO2/NO3 unpres Nitrogen, NO2 plus NO3 Nitrogen, Nitrate Nitrogen, Nitrite 410.4 COD Chemical Oxygen Demand 5310C TOC Total Organic Carbon 7196 Chromium, Hexavalent Chromium, Hexavalent 7196 Chromium, Hexavalent Diss Chromium, Hexavalent,Dissolved

Lab ID: 60311344004 Results

Collected: 08/08/19 14:56

Units

Report Limit

Received: 08/08/19 17:00

Prepared

Matrix: Water

Analyzed

CAS No.

Qual

Analytical Method: EPA 6010 Preparation Method: EPA 3010 ND

ug/L

50.0

08/13/19 08:58 08/13/19 18:36 7440-66-6

Analytical Method: EPA 7470 Preparation Method: EPA 7470 ND

ug/L

0.20

08/14/19 13:55 08/15/19 14:31 7439-97-6

Analytical Method: EPA 7470 Preparation Method: EPA 7470 ND

ug/L

0.20

10.0

08/14/19 13:55 08/15/19 13:20 7439-97-6

Analytical Method: SM 2540C 634

mg/L

08/14/19 10:58

Analytical Method: Trivalent Chromium Calculation ND

mg/L

0.010

08/29/19 16:15 16065-83-1

08/29/19 16:16 16065-83-1

Analytical Method: Dissolved Trivalent Cr Calc. ND

mg/L

0.010

Analytical Method: EPA 9020 Preparation Method: 9020B ND

ug/L

100

08/16/19 11:36 08/16/19 11:36

2.0 0.20 1.0

2 1 1

08/21/19 13:52 16887-00-6 08/21/19 01:10 16984-48-8 08/21/19 01:10 14808-79-8

0.10 0.10 0.10

1 1 1

08/09/19 08:20 08/09/19 08:20 14797-55-8 08/09/19 08:20 14797-65-0

Analytical Method: EPA 300.0 18.6 0.50 12.4

mg/L mg/L mg/L

Analytical Method: EPA 353.2 ND ND ND

mg/L mg/L mg/L

Analytical Method: EPA 410.4 Preparation Method: EPA 410.4 12.2

mg/L

10.0

08/20/19 16:39 08/21/19 14:07

1.0

08/13/19 21:28 7440-44-0

0.010

08/09/19 09:44 18540-29-9

0.010

08/09/19 09:37 18540-29-9

Analytical Method: SM 5310C 1.7

mg/L

Analytical Method: EPA 7196 ND

mg/L

Analytical Method: EPA 7196 ND

mg/L

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/06/2019 11:25 AM

without the written consent of Pace Analytical Services, LLC.

Page 14 of 47

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

QC Batch:

603181

Analysis Method:

EPA 7470

QC Batch Method:

EPA 7470

Analysis Description:

7470 Mercury

Associated Lab Samples: METHOD BLANK:

60311344001, 60311344002, 60311344003, 60311344004

2466660

Associated Lab Samples: Parameter

Matrix: Water

60311344001, 60311344002, 60311344003, 60311344004 Blank Reporting Units Result Limit

Mercury

ug/L

LABORATORY CONTROL SAMPLE: Parameter

Spike Conc.

ug/L

LCS Result 5

Mercury

2466662 MS 60311344002 Spike Units Result Conc. ug/L

08/15/19 14:06

LCS % Rec 5.0

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

Parameter

Qualifiers

2466661 Units

Mercury

0.20

Analyzed

% Rec Limits 100

Qualifiers

80-120

2466663 MSD Spike Conc. 5

MS Result 5

4.8

MSD Result

MS % Rec

4.8

MSD % Rec 95

% Rec Limits

Max RPD RPD

75-125

Qual

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/06/2019 11:25 AM

without the written consent of Pace Analytical Services, LLC.

Page 15 of 47

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

QC Batch:

603178

Analysis Method:

EPA 7470

QC Batch Method:

EPA 7470

Analysis Description:

7470 Mercury ,Dissolved

Associated Lab Samples: METHOD BLANK:

60311344001, 60311344002, 60311344003, 60311344004

2466653

Associated Lab Samples: Parameter

Matrix: Water

60311344001, 60311344002, 60311344003, 60311344004 Blank Reporting Units Result Limit

Mercury, Dissolved

ug/L

LABORATORY CONTROL SAMPLE: Parameter

Spike Conc.

ug/L

LCS Result 5

Mercury, Dissolved

2466655 MS 60311438003 Spike Units Result Conc. ug/L

08/15/19 13:02

0.37

LCS % Rec 4.9

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

Parameter

Qualifiers

2466654 Units

Mercury, Dissolved

0.20

Analyzed

% Rec Limits 99

Qualifiers

80-120

2466656 MSD Spike Conc. 5

MS Result 5

4.8

MSD Result

MS % Rec

5.0

MSD % Rec 92

% Rec Limits

Max RPD RPD

75-125

Qual

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/06/2019 11:25 AM

without the written consent of Pace Analytical Services, LLC.

Page 16 of 47

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

QC Batch:

602767

Analysis Method:

EPA 6010

QC Batch Method:

EPA 3010

Analysis Description:

6010 MET

Associated Lab Samples: METHOD BLANK:

60311344001, 60311344002, 60311344003, 60311344004

2465275

Associated Lab Samples: Parameter Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper Hardness, Total(SM 2340B) Iron Lead Lithium Magnesium Manganese Molybdenum Nickel Selenium Silver Sodium Thallium Zinc

LABORATORY CONTROL SAMPLE: Parameter Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper Hardness, Total(SM 2340B)

Matrix: Water

60311344001, 60311344002, 60311344003, 60311344004 Blank Reporting Units Result Limit ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

75.0 15.0 10.0 5.0 1.0 100 5.0 200 5.0 5.0 10.0 705 50.0 10.0 10.0 50.0 5.0 20.0 5.0 15.0 7.0 500 20.0 50.0

Analyzed

Qualifiers

08/13/19 18:52 08/13/19 18:52 08/13/19 18:52 08/13/19 18:52 08/13/19 18:52 08/13/19 18:52 08/13/19 18:52 08/13/19 18:52 08/13/19 18:52 08/13/19 18:52 08/13/19 18:52 08/13/19 18:52 08/13/19 18:52 08/13/19 18:52 08/13/19 18:52 08/13/19 18:52 08/13/19 18:52 08/13/19 18:52 08/13/19 18:52 08/13/19 18:52 08/13/19 18:52 08/13/19 18:52 08/13/19 18:52 08/13/19 18:52

2465276 Units ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

Spike Conc. 10000 1000 1000 1000 1000 1000 1000 10000 1000 1000 1000 66200

LCS Result 9940 1020 932 981 972 1000 991 9850 963 986 1020 66200

LCS % Rec

% Rec Limits 99 102 93 98 97 100 99 98 96 99 102 100

Qualifiers

80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/06/2019 11:25 AM

without the written consent of Pace Analytical Services, LLC.

Page 17 of 47

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

LABORATORY CONTROL SAMPLE: Parameter

2465276 Spike Conc.

Units

Iron Lead Lithium Magnesium Manganese Molybdenum Nickel Selenium Silver Sodium Thallium Zinc

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

LCS Result

10000 1000 1000 10000 1000 1000 1000 1000 500 10000 1000 1000

9920 1050 983 10100 995 1020 1010 1010 500 10100 1030 963

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

Parameter Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper Hardness, Total(SM 2340B) Iron Lead Lithium Magnesium Manganese Molybdenum Nickel Selenium Silver Sodium Thallium Zinc

2465277 MS 60311439001 Spike Units Result Conc. ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

80.4 ND 12.9 1150 ND ND ND 94500 ND ND ND 335000 5190 ND ND 24000 1640 ND ND ND ND 82300 ND 227

10000 1000 1000 1000 1000 1000 1000 10000 1000 1000 1000 66200 10000 1000 1000 10000 1000 1000 1000 1000 500 10000 1000 1000

LCS % Rec

% Rec Limits 99 105 98 101 99 102 101 101 100 101 103 96

Qualifiers

80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120

2465278 MSD Spike Conc. 10000 1000 1000 1000 1000 1000 1000 10000 1000 1000 1000 66200 10000 1000 1000 10000 1000 1000 1000 1000 500 10000 1000 1000

MS Result

MSD Result

10300 1060 994 2120 1000 1060 1020 101000 976 982 1040 388000 15000 1040 1040 32800 2550 1050 999 1030 512 90000 1000 1170

9920 1030 966 2030 966 1030 986 97700 940 949 1010 374000 14500 1000 1000 31600 2470 1020 968 1020 494 86800 961 1130

MS % Rec 102 105 98 96 100 103 102 69 98 98 104 80 98 103 103 87 91 105 100 103 102 77 100 94

MSD % Rec 98 102 95 88 97 100 99 32 94 95 101 59 93 100 99 76 84 102 97 102 99 45 96 90

% Rec Limits

Max RPD RPD

75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125

3 3 3 4 3 3 3 4 4 3 3 4 3 3 4 4 3 3 3 1 4 4 4 3

Qual

20 20 20 20 20 20 20 20 M1 20 20 20 20 20 20 20 20 20 20 20 20 20 20 M1 20 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/06/2019 11:25 AM

without the written consent of Pace Analytical Services, LLC.

Page 18 of 47

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

QC Batch:

602764

Analysis Method:

EPA 6010

QC Batch Method:

EPA 3010

Analysis Description:

6010 MET Dissolved

Associated Lab Samples: METHOD BLANK:

60311344001, 60311344002, 60311344003, 60311344004

2465264

Associated Lab Samples: Parameter Aluminum, Dissolved Antimony, Dissolved Arsenic, Dissolved Barium, Dissolved Beryllium, Dissolved Boron, Dissolved Cadmium, Dissolved Chromium, Dissolved Cobalt, Dissolved Copper, Dissolved Iron, Dissolved Lead, Dissolved Lithium, Dissolved Magnesium, Dissolved Manganese, Dissolved Molybdenum, Dissolved Nickel, Dissolved Selenium, Dissolved Silver, Dissolved Sodium, Dissolved Thallium, Dissolved Zinc, Dissolved

LABORATORY CONTROL SAMPLE: Parameter Aluminum, Dissolved Antimony, Dissolved Arsenic, Dissolved Barium, Dissolved Beryllium, Dissolved Boron, Dissolved Cadmium, Dissolved Chromium, Dissolved Cobalt, Dissolved Copper, Dissolved Iron, Dissolved Lead, Dissolved Lithium, Dissolved Magnesium, Dissolved

Matrix: Water

60311344001, 60311344002, 60311344003, 60311344004 Blank Reporting Units Result Limit ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

75.0 15.0 10.0 5.0 1.0 100 5.0 5.0 5.0 10.0 50.0 10.0 10.0 50.0 5.0 20.0 5.0 15.0 7.0 500 20.0 50.0

Analyzed

Qualifiers

08/13/19 18:09 08/13/19 18:09 08/13/19 18:09 08/13/19 18:09 08/13/19 18:09 08/13/19 18:09 08/13/19 18:09 08/13/19 18:09 08/13/19 18:09 08/13/19 18:09 08/13/19 18:09 08/13/19 18:09 08/13/19 18:09 08/13/19 18:09 08/13/19 18:09 08/13/19 18:09 08/13/19 18:09 08/13/19 18:09 08/13/19 18:09 08/13/19 18:09 08/13/19 18:09 08/13/19 18:09

2465265 Units ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

Spike Conc. 10000 1000 1000 1000 1000 1000 1000 1000 1000 1000 10000 1000 1000 10000

LCS Result 10100 1020 950 986 990 992 994 980 999 999 10200 1070 987 10200

LCS % Rec

% Rec Limits 101 102 95 99 99 99 99 98 100 100 102 107 99 102

Qualifiers

80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/06/2019 11:25 AM

without the written consent of Pace Analytical Services, LLC.

Page 19 of 47

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

LABORATORY CONTROL SAMPLE:

2465265

Parameter

Units

Manganese, Dissolved Molybdenum, Dissolved Nickel, Dissolved Selenium, Dissolved Silver, Dissolved Sodium, Dissolved Thallium, Dissolved Zinc, Dissolved

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

Spike Conc.

LCS Result

1000 1000 1000 1000 500 10000 1000 1000

998 1030 1020 1010 502 10000 1040 994

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

Parameter Aluminum, Dissolved Antimony, Dissolved Arsenic, Dissolved Barium, Dissolved Beryllium, Dissolved Boron, Dissolved Cadmium, Dissolved Chromium, Dissolved Cobalt, Dissolved Copper, Dissolved Iron, Dissolved Lead, Dissolved Lithium, Dissolved Magnesium, Dissolved Manganese, Dissolved Molybdenum, Dissolved Nickel, Dissolved Selenium, Dissolved Silver, Dissolved Sodium, Dissolved Thallium, Dissolved Zinc, Dissolved

2465266 MS 60311540001 Spike Units Result Conc. ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

17800 ND 62.7 581 1.6 125 ND 25.7 55.6 41.1 42500 67.0 14.2 24400 10900 ND 68.2 ND ND 181000 ND 108

10000 1000 1000 1000 1000 1000 1000 1000 1000 1000 10000 1000 1000 10000 1000 1000 1000 1000 500 10000 1000 1000

LCS % Rec

% Rec Limits 100 103 102 101 100 100 104 99

Qualifiers

80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120

2465267 MSD Spike Conc. 10000 1000 1000 1000 1000 1000 1000 1000 1000 1000 10000 1000 1000 10000 1000 1000 1000 1000 500 10000 1000 1000

MS Result

MSD Result

36900 916 1010 1540 960 1110 974 968 979 1030 52600 1020 1010 33700 11300 986 1000 979 491 184000 910 1020

38000 922 1000 1560 970 1140 980 986 987 1040 54000 1030 1030 34400 11600 993 1010 987 498 191000 905 1030

MS % Rec 191 91 95 95 96 98 97 94 92 99 101 96 100 92 36 98 93 98 98 31 91 92

MSD % Rec 202 92 94 98 97 101 98 96 93 100 115 97 101 100 72 99 94 99 100 102 90 93

% Rec Limits

Max RPD RPD

75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125

3 1 1 2 1 2 1 2 1 1 3 1 1 2 3 1 1 1 1 4 1 1

Qual

20 M1 20 20 20 20 20 20 20 20 20 20 20 20 20 20 M1 20 20 20 20 20 M1 20 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/06/2019 11:25 AM

without the written consent of Pace Analytical Services, LLC.

Page 20 of 47

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

QC Batch:

603025

Analysis Method:

SM 2540C

QC Batch Method:

SM 2540C

Analysis Description:

2540C Total Dissolved Solids

Associated Lab Samples: METHOD BLANK:

60311344001, 60311344002, 60311344003, 60311344004

2466169

Associated Lab Samples: Parameter Total Dissolved Solids

mg/L

LABORATORY CONTROL SAMPLE: Parameter

5.0

Qualifiers

08/14/19 10:57

Spike Conc.

LCS Result

LCS % Rec

% Rec Limits

mg/L

1000

1100

110

80-120

Units

60311486004 Result

Dup Result

RPD

Max RPD

mg/L

374

Units

60311344004 Result

mg/L

634

Qualifiers

2466171

Parameter Total Dissolved Solids

SAMPLE DUPLICATE:

Analyzed

2466170 Units

Total Dissolved Solids

SAMPLE DUPLICATE:

Matrix: Water

60311344001, 60311344002, 60311344003, 60311344004 Blank Reporting Units Result Limit

392

Qualifiers 10

2466172

Parameter Total Dissolved Solids

Dup Result

Max RPD

RPD 663

Qualifiers 10

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/06/2019 11:25 AM

without the written consent of Pace Analytical Services, LLC.

Page 21 of 47

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

QC Batch:

1328210

Analysis Method:

EPA 9020

QC Batch Method:

9020B

Analysis Description:

Wet Chemistry 9020B

Associated Lab Samples: METHOD BLANK:

60311344001, 60311344002, 60311344003, 60311344004

R3440950-2

Associated Lab Samples: Parameter

Matrix: Water

60311344001, 60311344002, 60311344003, 60311344004 Blank Reporting Units Result Limit

Total Organic Halides

METHOD BLANK:

ug/L

R3441325-2

Associated Lab Samples: Parameter

100

Qualifiers

08/15/19 13:34

Matrix: Water

60311344001, 60311344002, 60311344003, 60311344004 Blank Reporting Units Result Limit

Total Organic Halides

ug/L

LABORATORY CONTROL SAMPLE: Parameter

Spike Conc.

ug/L

LABORATORY CONTROL SAMPLE: Parameter

LCS Result

200

Qualifiers

08/16/19 09:37

LCS % Rec 213

% Rec Limits 107

Qualifiers

85.0-115

R3441325-1 Spike Conc.

Units

Total Organic Halides

100

Analyzed

R3440950-1 Units

Total Organic Halides

ug/L

LCS Result

200

Parameter

Units

R3440950-5 MS L1128226-01 Spike Result Conc.

Total Organic Halides

ug/L

60.8

LCS % Rec 190

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

SAMPLE DUPLICATE:

Analyzed

% Rec Limits

95.1

Qualifiers

85.0-115

R3440950-6 MSD Spike Conc.

200

MS Result

MSD Result

266

MS % Rec

281

MSD % Rec

103

% Rec Limits

110 80.0-120

Max RPD RPD 5.50

Qual

R3440950-3

Parameter Total Organic Halides

Units

L1128116-02 Result

ug/L

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/06/2019 11:25 AM

without the written consent of Pace Analytical Services, LLC.

Page 22 of 47

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

SAMPLE DUPLICATE:

R3440950-4

Parameter Total Organic Halides

SAMPLE DUPLICATE:

Total Organic Halides

60311344001 Result

ug/L

Units

60311344002 Result

ug/L

Units

60311344003 Result

ug/L

Units

60311344004 Result

ug/L

Units

L1128949-01 Result

ug/L

Units

L1128949-02 Result

ug/L

29.8

20 D8

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

R3441325-7

Parameter Total Organic Halides

SAMPLE DUPLICATE:

Units

Qualifiers

R3441325-6

Parameter

SAMPLE DUPLICATE:

60.8

Max RPD

RPD

R3441325-5

Parameter

SAMPLE DUPLICATE:

ug/L

Dup Result

R3441325-4

Parameter

SAMPLE DUPLICATE:

L1128226-01 Result

R3441325-3

Parameter

SAMPLE DUPLICATE:

Units

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

R3441325-8

Parameter Total Organic Halides

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/06/2019 11:25 AM

without the written consent of Pace Analytical Services, LLC.

Page 23 of 47

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

QC Batch:

604246

Analysis Method:

EPA 300.0

QC Batch Method:

EPA 300.0

Analysis Description:

300.0 IC Anions

Associated Lab Samples: METHOD BLANK:

60311344001, 60311344002, 60311344003, 60311344004

2470614

Associated Lab Samples: Parameter

Matrix: Water

60311344001, 60311344002, 60311344003, 60311344004 Blank Reporting Units Result Limit

Chloride Fluoride Sulfate

mg/L mg/L mg/L

LABORATORY CONTROL SAMPLE: Parameter

ND ND ND

Spike Conc.

mg/L mg/L mg/L

LCS Result

5 2.5 5

Chloride Fluoride Sulfate

2470616 MS 60311214004 Spike Units Result Conc. mg/L mg/L mg/L

MATRIX SPIKE SAMPLE: Parameter Chloride Fluoride Sulfate

08/20/19 14:19 08/20/19 14:19 08/20/19 14:19

3480 ND 5420

2000 1000 2000

LCS % Rec 4.7 2.5 4.9

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

Parameter

Qualifiers

2470615 Units

Chloride Fluoride Sulfate

1.0 0.20 1.0

Analyzed

% Rec Limits 94 102 99

Qualifiers

90-110 90-110 90-110

2470617 MSD Spike Conc. 2000 1000 2000

MS Result 5590 1020 7580

MSD Result

MS % Rec

5480 1020 7450

MSD % Rec

105 102 108

100 102 102

% Rec Limits

Max RPD RPD

80-120 80-120 80-120

2 0 2

Qual

15 15 15

2470618 Units mg/L mg/L mg/L

60311252001 Result 2310 41.8 2650

Spike Conc.

MS Result

1000 125 1000

3340 124 3670

MS % Rec

% Rec Limits 103 66 101

Qualifiers

80-120 80-120 M1 80-120

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/06/2019 11:25 AM

without the written consent of Pace Analytical Services, LLC.

Page 24 of 47

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

QC Batch:

604582

Analysis Method:

EPA 300.0

QC Batch Method:

EPA 300.0

Analysis Description:

300.0 IC Anions

Associated Lab Samples: METHOD BLANK:

60311344002, 60311344003, 60311344004

2471521

Associated Lab Samples: Parameter

Matrix: Water

60311344002, 60311344003, 60311344004 Blank Units Result

Chloride Fluoride Sulfate

mg/L mg/L mg/L

LABORATORY CONTROL SAMPLE: Parameter

ND ND ND

1.0 0.20 1.0

Spike Conc.

mg/L mg/L mg/L

LCS Result

5 2.5 5

Chloride Fluoride Sulfate

2471523 MS 60310857002 Spike Units Result Conc. mg/L mg/L mg/L

MATRIX SPIKE SAMPLE: Parameter Chloride Fluoride Sulfate

Qualifiers

08/21/19 10:42 08/21/19 10:42 08/21/19 10:42

17.0 1.5 356

10 5 10

LCS % Rec 4.8 2.5 5.1

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

Parameter

Analyzed

2471522 Units

Chloride Fluoride Sulfate

Reporting Limit

% Rec Limits 95 99 102

Qualifiers

90-110 90-110 90-110

2471524 MSD Spike Conc. 10 5 10

MS Result 27.6 6.4 477

MSD Result

MS % Rec

28.0 6.5 475

MSD % Rec

105 99 30

109 100 9

% Rec Limits

Max RPD RPD

80-120 80-120 80-120

1 1 0

Qual

15 15 15 E,M1

2471525 Units mg/L mg/L mg/L

60312108011 Result 590 8.3J 15600

Spike Conc. 250 125 5000

MS Result 867 132 21400

MS % Rec

% Rec Limits 111 99 116

Qualifiers

80-120 80-120 80-120 E

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/06/2019 11:25 AM

without the written consent of Pace Analytical Services, LLC.

Page 25 of 47

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

QC Batch:

602109

Analysis Method:

EPA 353.2

QC Batch Method:

EPA 353.2

Analysis Description:

353.2 Nitrate + Nitrite, Unpres.

Associated Lab Samples: METHOD BLANK:

60311344001, 60311344002, 60311344003, 60311344004

2463141

Associated Lab Samples: Parameter

Matrix: Water

60311344001, 60311344002, 60311344003, 60311344004 Blank Reporting Units Result Limit

Nitrogen, Nitrate Nitrogen, Nitrite Nitrogen, NO2 plus NO3

LABORATORY CONTROL SAMPLE:

mg/L mg/L mg/L

Units

Nitrogen, Nitrate Nitrogen, Nitrite Nitrogen, NO2 plus NO3

mg/L mg/L mg/L

Units

Nitrogen, Nitrate Nitrogen, Nitrite Nitrogen, NO2 plus NO3

mg/L mg/L mg/L

Parameter Nitrogen, Nitrate Nitrogen, Nitrite Nitrogen, NO2 plus NO3

08/09/19 08:03 08/09/19 08:03 08/09/19 08:03

Spike Conc.

LCS Result

LCS % Rec

% Rec Limits

Qualifiers

1 1 2

1.2 0.90 2.1

118 90 104

70-130 90-110 90-110

60311224003 Result

Spike Conc.

MS Result

MS % Rec

2463143

Parameter

MATRIX SPIKE SAMPLE:

0.10 0.10 0.10

Qualifiers

2463142

Parameter

MATRIX SPIKE SAMPLE:

ND ND ND

Analyzed

3.2 ND 3.2

1 1 2

4.2 0.96 5.1

% Rec Limits 93 96 94

Qualifiers

70-130 90-110 90-110

2463145 Units mg/L mg/L mg/L

60311295003 Result 0.18 ND 0.18

Spike Conc.

MS Result 1 1 2

MS % Rec 1.2 0.98 2.2

% Rec Limits 100 98 99

Qualifiers

70-130 90-110 90-110

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/06/2019 11:25 AM

without the written consent of Pace Analytical Services, LLC.

Page 26 of 47

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

QC Batch:

604285

Analysis Method:

EPA 410.4

QC Batch Method:

EPA 410.4

Analysis Description:

410.4 Water Analysis

Associated Lab Samples: METHOD BLANK:

60311344001, 60311344002, 60311344003, 60311344004

2470724

Associated Lab Samples: Parameter Chemical Oxygen Demand

LABORATORY CONTROL SAMPLE: Parameter

mg/L

MATRIX SPIKE SAMPLE: Parameter

mg/L

MATRIX SPIKE SAMPLE: Parameter

mg/L

08/21/19 13:56

Spike Conc.

LCS Result

LCS % Rec

% Rec Limits

Qualifiers

54.9

110

90-110

60311043002 Result

Spike Conc.

MS Result

MS % Rec

48700

25000

% Rec Limits

71400

Qualifiers

90-110

2470728 Units

Chemical Oxygen Demand

10.0

Qualifiers

2470726 Units

Chemical Oxygen Demand

Analyzed

2470725 Units

Chemical Oxygen Demand

SAMPLE DUPLICATE:

Matrix: Water

60311344001, 60311344002, 60311344003, 60311344004 Blank Reporting Units Result Limit

60311214004 Result 121

mg/L

Spike Conc.

MS Result

MS % Rec 190

% Rec Limits 137

Qualifiers

90-110 E,M1

2470727

Parameter Chemical Oxygen Demand

Units

60311043004 Result

mg/L

22200

Dup Result

Max RPD

RPD

21800

Qualifiers 25

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/06/2019 11:25 AM

without the written consent of Pace Analytical Services, LLC.

Page 27 of 47

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

QC Batch:

602790

Analysis Method:

SM 5310C

QC Batch Method:

SM 5310C

Analysis Description:

5310C Total Organic Carbon

Associated Lab Samples: METHOD BLANK:

60311344001, 60311344002, 60311344003, 60311344004

2465329

Associated Lab Samples: Parameter Total Organic Carbon

mg/L

LABORATORY CONTROL SAMPLE: Parameter

mg/L

MATRIX SPIKE SAMPLE: Parameter

1.0

Qualifiers

08/13/19 15:40

Spike Conc.

LCS Result

LCS % Rec

% Rec Limits

Qualifiers

5.5

110

80-120

60311513001 Result

Spike Conc.

MS Result

MS % Rec

2465331 Units

Total Organic Carbon

Analyzed

2465330 Units

Total Organic Carbon

SAMPLE DUPLICATE:

Matrix: Water

60311344001, 60311344002, 60311344003, 60311344004 Blank Reporting Units Result Limit

mg/L

29.3

100

139

% Rec Limits 109

Qualifiers

80-120

2465332

Parameter Total Organic Carbon

Units

60311120001 Result

mg/L

4.9

Dup Result

Max RPD

RPD 4.1

Qualifiers 25

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/06/2019 11:25 AM

without the written consent of Pace Analytical Services, LLC.

Page 28 of 47

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

QC Batch:

602128

Analysis Method:

EPA 7196

QC Batch Method:

EPA 7196

Analysis Description:

7196 Chromium, Hexavalent

Associated Lab Samples: METHOD BLANK:

60311344001, 60311344002, 60311344003, 60311344004

2463195

Associated Lab Samples: Parameter Chromium, Hexavalent

mg/L

LABORATORY CONTROL SAMPLE: Parameter

mg/L

MATRIX SPIKE SAMPLE: Parameter

0.010

Qualifiers

08/09/19 09:39

Spike Conc.

LCS Result

LCS % Rec

% Rec Limits

0.1

0.10

101

90-110

60311344001 Result

Spike Conc.

MS Result

MS % Rec

Qualifiers

2463197 Units

Chromium, Hexavalent

Analyzed

2463196 Units

Chromium, Hexavalent

SAMPLE DUPLICATE:

Matrix: Water

60311344001, 60311344002, 60311344003, 60311344004 Blank Reporting Units Result Limit

mg/L

0.1

0.080

% Rec Limits 80

Qualifiers

85-115 M1

2463198

Parameter Chromium, Hexavalent

Units

60311344004 Result

mg/L

Dup Result

RPD ND

Max RPD

Qualifiers 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/06/2019 11:25 AM

without the written consent of Pace Analytical Services, LLC.

Page 29 of 47

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

QC Batch:

602130

Analysis Method:

EPA 7196

QC Batch Method:

EPA 7196

Analysis Description:

7196 Chromium, Hexavalent Diss

Associated Lab Samples: METHOD BLANK:

60311344001, 60311344002, 60311344003, 60311344004

2463202

Associated Lab Samples: Parameter

Chromium, Hexavalent,Dissolved

LABORATORY CONTROL SAMPLE: Parameter

mg/L

MATRIX SPIKE SAMPLE: Parameter

mg/L

0.010

Qualifiers

08/09/19 09:36

Spike Conc.

LCS Result

LCS % Rec

% Rec Limits

Qualifiers

0.1

0.10

100

90-110

60311344003 Result

Spike Conc.

MS Result

MS % Rec

2463204 Units

Chromium, Hexavalent,Dissolved

Analyzed

2463203 Units

Chromium, Hexavalent,Dissolved

SAMPLE DUPLICATE:

Matrix: Water

60311344001, 60311344002, 60311344003, 60311344004 Blank Reporting Units Result Limit

mg/L

0.1

0.10

% Rec Limits 101

Qualifiers

85-115

2463205

Parameter Chromium, Hexavalent,Dissolved

Units

60311344003 Result

mg/L

Dup Result

RPD ND

Max RPD

Qualifiers 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/06/2019 11:25 AM

without the written consent of Pace Analytical Services, LLC.

Page 30 of 47

#=ARR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS - RADIOCHEMISTRY Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

Sample: MW-10 PWS: Parameters

Lab ID: 60311344001 Site ID: Method

Radium-226

EPA 903.1

Radium-228

EPA 904.0

Collected: 08/08/19 14:41 Sample Type:

Received: 08/08/19 17:00

Act ± Unc (MDC) Carr Trac 1.67 ± 0.820 (0.803) C:NA T:93% 0.631 ± 0.566 (1.16) C:83% T:90%

Units

Analyzed

Matrix: Water

CAS No.

Qual

pCi/L

09/03/19 11:27 13982-63-3

pCi/L

08/29/19 14:19 15262-20-1

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 31 of 47

#=ARR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS - RADIOCHEMISTRY Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

Sample: MW-8 PWS: Parameters

Lab ID: 60311344002 Site ID: Method

Radium-226

EPA 903.1

Radium-228

EPA 904.0

Collected: 08/08/19 12:55 Sample Type:

Received: 08/08/19 17:00

Act ± Unc (MDC) Carr Trac 2.47 ± 1.01 (0.942) C:NA T:90% 0.466 ± 0.380 (0.757) C:80% T:95%

Units

Analyzed

Matrix: Water

CAS No.

Qual

pCi/L

09/03/19 11:27 13982-63-3

pCi/L

08/29/19 14:19 15262-20-1

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 32 of 47

#=ARR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS - RADIOCHEMISTRY Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

Sample: MW-7 PWS: Parameters

Lab ID: 60311344003 Site ID: Method

Radium-226

EPA 903.1

Radium-228

EPA 904.0

Collected: 08/08/19 11:40 Sample Type:

Received: 08/08/19 17:00

Act ± Unc (MDC) Carr Trac 1.48 ± 0.878 (0.992) C:NA T:89% 0.251 ± 0.362 (0.778) C:81% T:85%

Units

Analyzed

Matrix: Water

CAS No.

Qual

pCi/L

09/03/19 11:27 13982-63-3

pCi/L

08/29/19 14:19 15262-20-1

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 33 of 47

#=ARR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS - RADIOCHEMISTRY Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

Sample: MW-9 PWS: Parameters

Lab ID: 60311344004 Site ID: Method

Radium-226

EPA 903.1

Radium-228

EPA 904.0

Collected: 08/08/19 14:56 Sample Type:

Received: 08/08/19 17:00

Act ± Unc (MDC) Carr Trac 2.63 ± 1.13 (1.13) C:NA T:78% 0.662 ± 0.425 (0.817) C:83% T:84%

Units

Analyzed

Matrix: Water

CAS No.

Qual

pCi/L

09/03/19 11:27 13982-63-3

pCi/L

08/29/19 14:20 15262-20-1

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 34 of 47

#=QCR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL - RADIOCHEMISTRY Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

QC Batch:

357630

Analysis Method:

EPA 903.1

QC Batch Method:

EPA 903.1

Analysis Description:

903.1 Radium-226

Associated Lab Samples: METHOD BLANK:

1736661

Associated Lab Samples: Parameter Radium-226

60311344001, 60311344002, 60311344003, 60311344004 Matrix: Water

60311344001, 60311344002, 60311344003, 60311344004 Act ± Unc (MDC) Carr Trac 0.567 ± 0.420 (0.568) C:NA T:85%

Units

Analyzed

pCi/L

09/03/19 11:27

Qualifiers

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 35 of 47

#=QCR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL - RADIOCHEMISTRY Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

QC Batch:

357629

Analysis Method:

EPA 904.0

QC Batch Method:

EPA 904.0

Analysis Description:

904.0 Radium 228

Associated Lab Samples: METHOD BLANK:

1736658

Associated Lab Samples: Parameter Radium-228

60311344001, 60311344002, 60311344003, 60311344004 Matrix: Water

60311344001, 60311344002, 60311344003, 60311344004 Act ± Unc (MDC) Carr Trac

Units

Analyzed

-0.130 ± 0.326 (0.786) C:81% T:80%

pCi/L

08/29/19 14:21

Qualifiers

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 36 of 47

#=QL#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALIFIERS Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Act - Activity Unc - Uncertainty: SDWA = 1.96 sigma count uncertainty, all other matrices = Expanded Uncertainty (95% confidence interval). Gamma Spec = Expanded Uncertainty (95.4% Confidence Interval) (MDC) - Minimum Detectable Concentration Trac - Tracer Recovery (%) Carr - Carrier Recovery (%) Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. LABORATORIES PAN

Pace Analytical National

PASI-K

Pace Analytical Services - Kansas City

PASI-PA

Pace Analytical Services - Greensburg

ANALYTE QUALIFIERS

The sample and duplicate results for this parameter are less than 5 times the reporting limit, the RPD may not be statistically valid. Dissolved result is greater than the total. Data is within laboratory control limits.

Analyte concentration exceeded the calibration range. The reported result is estimated.

Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/06/2019 11:25 AM

without the written consent of Pace Analytical Services, LLC.

Page 37 of 47

#=CR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA CROSS REFERENCE TABLE Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

Lab ID

Sample ID

QC Batch Method

QC Batch

Analytical Method

Analytical Batch

60311344001 60311344002 60311344003 60311344004

MW-10 MW-8 MW-7 MW-9

EPA 3010 EPA 3010 EPA 3010 EPA 3010

602767 602767 602767 602767

EPA 6010 EPA 6010 EPA 6010 EPA 6010

602810 602810 602810 602810

60311344001 60311344002 60311344003 60311344004

MW-10 MW-8 MW-7 MW-9

EPA 3010 EPA 3010 EPA 3010 EPA 3010

602764 602764 602764 602764

EPA 6010 EPA 6010 EPA 6010 EPA 6010

602808 602808 602808 602808

60311344001 60311344002 60311344003 60311344004

MW-10 MW-8 MW-7 MW-9

EPA 7470 EPA 7470 EPA 7470 EPA 7470

603181 603181 603181 603181

EPA 7470 EPA 7470 EPA 7470 EPA 7470

603250 603250 603250 603250

60311344001 60311344002 60311344003 60311344004

MW-10 MW-8 MW-7 MW-9

EPA 7470 EPA 7470 EPA 7470 EPA 7470

603178 603178 603178 603178

EPA 7470 EPA 7470 EPA 7470 EPA 7470

603248 603248 603248 603248

60311344001 60311344002 60311344003 60311344004

MW-10 MW-8 MW-7 MW-9

EPA 903.1 EPA 903.1 EPA 903.1 EPA 903.1

357630 357630 357630 357630

60311344001 60311344002 60311344003 60311344004

MW-10 MW-8 MW-7 MW-9

EPA 904.0 EPA 904.0 EPA 904.0 EPA 904.0

357629 357629 357629 357629

60311344001 60311344002 60311344003 60311344004

MW-10 MW-8 MW-7 MW-9

SM 2540C SM 2540C SM 2540C SM 2540C

603025 603025 603025 603025

60311344001

MW-10

606557

60311344002

MW-8

60311344003

MW-7

60311344004

MW-9

Trivalent Chromium Calculation Trivalent Chromium Calculation Trivalent Chromium Calculation Trivalent Chromium Calculation

60311344001

MW-10

606558

60311344002

MW-8

60311344003

MW-7

60311344004

MW-9

Dissolved Trivalent Cr Calc. Dissolved Trivalent Cr Calc. Dissolved Trivalent Cr Calc. Dissolved Trivalent Cr Calc.

60311344001 60311344002 60311344003

MW-10 MW-8 MW-7

9020B 9020B 9020B

1328210 1328210 1328210

EPA 9020 EPA 9020 EPA 9020

1328210 1328210 1328210

606557 606557 606557

606558 606558 606558

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/06/2019 11:25 AM

without the written consent of Pace Analytical Services, LLC.

Page 38 of 47

#=CR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA CROSS REFERENCE TABLE Project:

IPL INDEPENDENCE

Pace Project No.:

60311344

Lab ID

Sample ID

QC Batch Method

QC Batch

Analytical Method

Analytical Batch

60311344004

MW-9

9020B

1328210

EPA 9020

1328210

60311344001 60311344002

MW-10 MW-8

EPA 300.0 EPA 300.0

604246 604246

60311344002

MW-8

EPA 300.0

604582

60311344003

MW-7

EPA 300.0

604246

60311344003

MW-7

EPA 300.0

604582

60311344004

MW-9

EPA 300.0

604246

60311344004

MW-9

EPA 300.0

604582

60311344001 60311344002 60311344003 60311344004

MW-10 MW-8 MW-7 MW-9

EPA 353.2 EPA 353.2 EPA 353.2 EPA 353.2

602109 602109 602109 602109

60311344001 60311344002 60311344003 60311344004

MW-10 MW-8 MW-7 MW-9

EPA 410.4 EPA 410.4 EPA 410.4 EPA 410.4

604285 604285 604285 604285

EPA 410.4 EPA 410.4 EPA 410.4 EPA 410.4

604721 604721 604721 604721

60311344001 60311344002 60311344003 60311344004

MW-10 MW-8 MW-7 MW-9

SM 5310C SM 5310C SM 5310C SM 5310C

602790 602790 602790 602790

60311344001 60311344002 60311344003 60311344004

MW-10 MW-8 MW-7 MW-9

EPA 7196 EPA 7196 EPA 7196 EPA 7196

602128 602128 602128 602128

60311344001 60311344002 60311344003 60311344004

MW-10 MW-8 MW-7 MW-9

EPA 7196 EPA 7196 EPA 7196 EPA 7196

602130 602130 602130 602130

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/06/2019 11:25 AM

without the written consent of Pace Analytical Services, LLC.

Page 39 of 47

Page 40 of 47

Page 41 of 47

Page 42 of 47

Page 43 of 47

Page 44 of 47

Page 45 of 47

Page 46 12 of 47 13

Page 47 13 of 47 13

#=CL#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

LIMS USE: FR - ANDREA COLLIER LIMS OBJECT ID: 60311438

September 05, 2019

Andrea Collier Barr Engineering 1001 Diamond Ridge, Ste 1100 Jefferson City, MO 65109

RE: Project: IPL INDEPENDENCE Pace Project No.: 60311438 Dear Andrea Collier: Enclosed are the analytical results for sample(s) received by the laboratory on August 09, 2019. The results relate only to the samples included in this report. Results reported herein conform to the most current, applicable TNI/NELAC standards and the laboratory's Quality Assurance Manual, where applicable, unless otherwise noted in the body of the report. If you have any questions concerning this report, please feel free to contact me. Sincerely,

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 1 of 43

#=CP#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

CERTIFICATIONS Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 2 of 43

#=CP#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

CERTIFICATIONS Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 3 of 43

#=SS#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

SAMPLE SUMMARY Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

Lab ID

Sample ID

Matrix

Date Collected

Date Received

60311438001

MW-11

Water

08/09/19 08:20

08/09/19 12:48

60311438002

TW -1

Water

08/09/19 10:40

08/09/19 12:48

60311438003

TW - 4

Water

08/09/19 10:40

08/09/19 12:48

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 4 of 43

#=SA#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

SAMPLE ANALYTE COUNT Project:

IPL INDEPENDENCE

Pace Project No.:

60311438 Analytes Reported

Lab ID

Sample ID

Method

Analysts

60311438001

MW-11

EPA 6010

EMR

PASI-K

EPA 6010

EMR

PASI-K

EPA 7470

LRS

PASI-K

EPA 7470

LRS

PASI-K

EPA 903.1

MK1

PASI-PA

EPA 904.0

VAL

PASI-PA

SM 2540C

AJS

PASI-K

EPA 9020

VRP

PAN

EPA 300.0

MGS

PASI-K

60311438002

60311438003

TW -1

TW - 4

Laboratory

EPA 353.2

LDB

PASI-K

SM 5310C

MJK

PASI-K

EPA 7196

LDB

PASI-K

EPA 7196

LDB

PASI-K

EPA 6010

EMR

PASI-K

EPA 6010

EMR

PASI-K

EPA 7470

LRS

PASI-K

EPA 7470

LRS

PASI-K

EPA 903.1

MK1

PASI-PA

EPA 904.0

VAL

PASI-PA

SM 2540C

AJS

PASI-K

EPA 9020

VRP

PAN

EPA 300.0

MGS

PASI-K

EPA 353.2

LDB

PASI-K

SM 5310C

MJK

PASI-K

EPA 7196

LDB

PASI-K

EPA 7196

LDB

PASI-K

EPA 6010

EMR

PASI-K

EPA 6010

EMR

PASI-K

EPA 7470

LRS

PASI-K

EPA 7470

LRS

PASI-K

EPA 903.1

MK1

PASI-PA

EPA 904.0

VAL

PASI-PA

SM 2540C

AJS

PASI-K

EPA 9020

VRP

PAN

EPA 300.0

MGS

PASI-K

EPA 353.2

LDB

PASI-K

SM 5310C

MJK

PASI-K

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 5 of 43

#=SA#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

SAMPLE ANALYTE COUNT Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

Lab ID

Sample ID

Analytes Reported

Method

Analysts

Laboratory

EPA 7196

LDB

PASI-K

EPA 7196

LDB

PASI-K

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 6 of 43

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

Sample: MW-11 Parameters 6010 MET ICP Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper Iron Lead Lithium Magnesium Manganese Molybdenum Nickel Selenium Silver Sodium Thallium Hardness, Total(SM 2340B) Zinc 6010 MET ICP, Dissolved Aluminum, Dissolved Antimony, Dissolved Arsenic, Dissolved Barium, Dissolved Beryllium, Dissolved Boron, Dissolved Cadmium, Dissolved Chromium, Dissolved Cobalt, Dissolved Copper, Dissolved Iron, Dissolved Lead, Dissolved Lithium, Dissolved Magnesium, Dissolved Manganese, Dissolved Molybdenum, Dissolved Nickel, Dissolved Selenium, Dissolved Silver, Dissolved Sodium, Dissolved Thallium, Dissolved

Lab ID: 60311438001 Results

Units

Collected: 08/09/19 08:20 Report Limit

Received: 08/09/19 12:48

Prepared

Matrix: Water

Analyzed

CAS No.

08/13/19 19:16 08/13/19 19:16 08/13/19 19:16 08/13/19 19:16 08/13/19 19:16 08/13/19 19:16 08/13/19 19:16 08/13/19 19:16 08/13/19 19:16 08/13/19 19:16 08/13/19 19:16 08/13/19 19:16 08/13/19 19:16 08/13/19 19:16 08/13/19 19:16 08/13/19 19:16 08/13/19 19:16 08/13/19 19:16 08/13/19 19:16 08/13/19 19:16 08/13/19 19:16 08/13/19 19:16 08/13/19 19:16 08/13/19 19:16

08/13/19 18:39 08/13/19 18:39 08/13/19 18:39 08/13/19 18:39 08/13/19 18:39 08/13/19 18:39 08/13/19 18:39 08/13/19 18:39 08/13/19 18:39 08/13/19 18:39 08/13/19 18:39 08/13/19 18:39 08/13/19 18:39 08/13/19 18:39 08/13/19 18:39 08/13/19 18:39 08/13/19 18:39 08/13/19 18:39 08/13/19 18:39 08/13/19 18:39 08/13/19 18:39

Qual

Analytical Method: EPA 6010 Preparation Method: EPA 3010 877 ND ND 402 ND ND ND 76400 ND ND ND 852 ND ND 19500 1210 ND ND ND ND 44800 ND 271000 ND

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

75.0 15.0 10.0 5.0 1.0 100 5.0 200 5.0 5.0 10.0 50.0 10.0 10.0 50.0 5.0 20.0 5.0 15.0 7.0 500 20.0 705 50.0

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

7440-66-6

Analytical Method: EPA 6010 Preparation Method: EPA 3010 ND ND ND 387 ND ND ND ND ND ND ND ND ND 19500 1190 ND ND ND ND 44700 ND

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

75.0 15.0 10.0 5.0 1.0 100 5.0 5.0 5.0 10.0 50.0 10.0 10.0 50.0 5.0 20.0 5.0 15.0 7.0 500 20.0

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/05/2019 04:06 PM

without the written consent of Pace Analytical Services, LLC.

Page 7 of 43

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

Sample: MW-11 Parameters 6010 MET ICP, Dissolved Zinc, Dissolved 7470 Mercury Mercury 7470 Mercury, Dissolved Mercury, Dissolved 2540C Total Dissolved Solids Total Dissolved Solids Wet Chemistry 9020B Total Organic Halides 300.0 IC Anions 28 Days Chloride Fluoride Sulfate 353.2 Nitrogen, NO2/NO3 unpres Nitrogen, NO2 plus NO3 Nitrogen, Nitrate Nitrogen, Nitrite 5310C TOC Total Organic Carbon 7196 Chromium, Hexavalent Chromium, Hexavalent 7196 Chromium, Hexavalent Diss Chromium, Hexavalent,Dissolved

Lab ID: 60311438001 Results

Collected: 08/09/19 08:20

Units

Report Limit

Received: 08/09/19 12:48

Prepared

Matrix: Water

Analyzed

CAS No.

Qual

Analytical Method: EPA 6010 Preparation Method: EPA 3010 ND

ug/L

50.0

08/13/19 08:58 08/13/19 18:39 7440-66-6

Analytical Method: EPA 7470 Preparation Method: EPA 7470 ND

ug/L

0.20

08/14/19 13:55 08/15/19 14:33 7439-97-6

Analytical Method: EPA 7470 Preparation Method: EPA 7470 ND

ug/L

0.20

10.0

08/14/19 13:55 08/15/19 13:29 7439-97-6

Analytical Method: SM 2540C 467

mg/L

08/14/19 10:59

Analytical Method: EPA 9020 Preparation Method: 9020B ND

ug/L

100

08/16/19 11:54 08/16/19 11:54

5.0 0.20 1.0

5 1 1

08/21/19 20:07 16887-00-6 08/21/19 19:50 16984-48-8 08/21/19 19:50 14808-79-8

0.10 0.10 0.10

1 1 1

08/09/19 17:50 08/09/19 17:50 14797-55-8 08/09/19 17:50 14797-65-0

1.0

08/15/19 00:10 7440-44-0

0.010

08/09/19 17:59 18540-29-9

0.010

08/09/19 18:04 18540-29-9

Analytical Method: EPA 300.0 48.8 ND 2.0

mg/L mg/L mg/L

Analytical Method: EPA 353.2 ND ND ND

mg/L mg/L mg/L

Analytical Method: SM 5310C 1.1

mg/L

Analytical Method: EPA 7196 ND

mg/L

Analytical Method: EPA 7196 ND

mg/L

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/05/2019 04:06 PM

without the written consent of Pace Analytical Services, LLC.

Page 8 of 43

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

Sample: TW -1 Parameters 6010 MET ICP Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper Iron Lead Lithium Magnesium Manganese Molybdenum Nickel Selenium Silver Sodium Thallium Hardness, Total(SM 2340B) Zinc 6010 MET ICP, Dissolved Aluminum, Dissolved Antimony, Dissolved Arsenic, Dissolved Barium, Dissolved Beryllium, Dissolved Boron, Dissolved Cadmium, Dissolved Chromium, Dissolved Cobalt, Dissolved Copper, Dissolved Iron, Dissolved Lead, Dissolved Lithium, Dissolved Magnesium, Dissolved Manganese, Dissolved Molybdenum, Dissolved Nickel, Dissolved Selenium, Dissolved Silver, Dissolved Sodium, Dissolved Thallium, Dissolved

Lab ID: 60311438002 Results

Units

Collected: 08/09/19 10:40 Report Limit

Received: 08/09/19 12:48

Prepared

Matrix: Water

Analyzed

CAS No.

08/13/19 19:19 08/13/19 19:19 08/13/19 19:19 08/13/19 19:19 08/13/19 19:19 08/13/19 19:19 08/13/19 19:19 08/13/19 19:19 08/13/19 19:19 08/13/19 19:19 08/13/19 19:19 08/13/19 19:19 08/13/19 19:19 08/13/19 19:19 08/13/19 19:19 08/13/19 19:19 08/13/19 19:19 08/13/19 19:19 08/13/19 19:19 08/13/19 19:19 08/13/19 19:19 08/13/19 19:19 08/13/19 19:19 08/13/19 19:19

08/13/19 18:45 08/13/19 18:45 08/13/19 18:45 08/13/19 18:45 08/13/19 18:45 08/13/19 18:45 08/13/19 18:45 08/13/19 18:45 08/13/19 18:45 08/13/19 18:45 08/13/19 18:45 08/13/19 18:45 08/13/19 18:45 08/13/19 18:45 08/13/19 18:45 08/13/19 18:45 08/13/19 18:45 08/13/19 18:45 08/13/19 18:45 08/13/19 18:45 08/13/19 18:45

Qual

Analytical Method: EPA 6010 Preparation Method: EPA 3010 13600 ND 15.1 191 ND 720 ND 49600 32.0 8.4 25.1 21300 11.1 62.5 18100 515 ND 28.2 ND ND 218000 ND 198000 ND

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

75.0 15.0 10.0 5.0 1.0 100 5.0 200 5.0 5.0 10.0 50.0 10.0 10.0 50.0 5.0 20.0 5.0 15.0 7.0 500 20.0 705 50.0

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

7440-66-6

Analytical Method: EPA 6010 Preparation Method: EPA 3010 ND ND ND 99.9 ND 724 ND ND ND ND ND ND 32.7 13100 171 ND ND ND ND 225000 ND

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

75.0 15.0 10.0 5.0 1.0 100 5.0 5.0 5.0 10.0 50.0 10.0 10.0 50.0 5.0 20.0 5.0 15.0 7.0 500 20.0

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/05/2019 04:06 PM

without the written consent of Pace Analytical Services, LLC.

Page 9 of 43

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

Sample: TW -1 Parameters 6010 MET ICP, Dissolved Zinc, Dissolved 7470 Mercury Mercury 7470 Mercury, Dissolved Mercury, Dissolved 2540C Total Dissolved Solids Total Dissolved Solids Wet Chemistry 9020B Total Organic Halides 300.0 IC Anions 28 Days Chloride Fluoride Sulfate 353.2 Nitrogen, NO2/NO3 unpres Nitrogen, NO2 plus NO3 Nitrogen, Nitrate Nitrogen, Nitrite 5310C TOC Total Organic Carbon 7196 Chromium, Hexavalent Chromium, Hexavalent 7196 Chromium, Hexavalent Diss Chromium, Hexavalent,Dissolved

Lab ID: 60311438002 Results

Collected: 08/09/19 10:40

Units

Report Limit

Received: 08/09/19 12:48

Prepared

Matrix: Water

Analyzed

CAS No.

Qual

Analytical Method: EPA 6010 Preparation Method: EPA 3010 ND

ug/L

50.0

08/13/19 08:58 08/13/19 18:45 7440-66-6

Analytical Method: EPA 7470 Preparation Method: EPA 7470 ND

ug/L

0.20

08/14/19 13:55 08/15/19 14:36 7439-97-6

Analytical Method: EPA 7470 Preparation Method: EPA 7470 ND

ug/L

0.20

10.0

08/14/19 13:55 08/15/19 13:32 7439-97-6

Analytical Method: SM 2540C 728

mg/L

08/14/19 10:59

Analytical Method: EPA 9020 Preparation Method: 9020B ND

ug/L

100

08/16/19 12:36 08/16/19 12:36

5.0 0.20 5.0

5 1 5

08/21/19 20:58 16887-00-6 08/21/19 20:41 16984-48-8 08/21/19 20:58 14808-79-8

0.10 0.10 0.10

1 1 1

08/09/19 17:50 08/09/19 17:50 14797-55-8 08/09/19 17:50 14797-65-0

1.0

08/15/19 00:23 7440-44-0

0.010

08/09/19 18:00 18540-29-9

0.010

08/09/19 18:04 18540-29-9

Analytical Method: EPA 300.0 67.8 0.52 88.7

mg/L mg/L mg/L

Analytical Method: EPA 353.2 0.13 0.13 ND

mg/L mg/L mg/L

Analytical Method: SM 5310C 3.5

mg/L

Analytical Method: EPA 7196 ND

mg/L

Analytical Method: EPA 7196 ND

mg/L

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/05/2019 04:06 PM

without the written consent of Pace Analytical Services, LLC.

Page 10 of 43

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

Sample: TW - 4 Parameters 6010 MET ICP Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper Iron Lead Lithium Magnesium Manganese Molybdenum Nickel Selenium Silver Sodium Thallium Hardness, Total(SM 2340B) Zinc 6010 MET ICP, Dissolved Aluminum, Dissolved Antimony, Dissolved Arsenic, Dissolved Barium, Dissolved Beryllium, Dissolved Boron, Dissolved Cadmium, Dissolved Chromium, Dissolved Cobalt, Dissolved Copper, Dissolved Iron, Dissolved Lead, Dissolved Lithium, Dissolved Magnesium, Dissolved Manganese, Dissolved Molybdenum, Dissolved Nickel, Dissolved Selenium, Dissolved Silver, Dissolved Sodium, Dissolved Thallium, Dissolved

Lab ID: 60311438003 Results

Units

Collected: 08/09/19 10:40 Report Limit

Received: 08/09/19 12:48

Prepared

Matrix: Water

Analyzed

CAS No.

08/13/19 19:21 08/13/19 19:21 08/13/19 19:21 08/13/19 19:21 08/13/19 19:21 08/13/19 19:21 08/13/19 19:21 08/13/19 19:21 08/13/19 19:21 08/13/19 19:21 08/13/19 19:21 08/13/19 19:21 08/13/19 19:21 08/13/19 19:21 08/13/19 19:21 08/13/19 19:21 08/13/19 19:21 08/13/19 19:21 08/13/19 19:21 08/13/19 19:21 08/13/19 19:21 08/13/19 19:21 08/13/19 19:21 08/13/19 19:21

08/13/19 18:48 08/13/19 18:48 08/13/19 18:48 08/13/19 18:48 08/13/19 18:48 08/13/19 18:48 08/13/19 18:48 08/13/19 18:48 08/13/19 18:48 08/13/19 18:48 08/13/19 18:48 08/13/19 18:48 08/13/19 18:48 08/13/19 18:48 08/13/19 18:48 08/13/19 18:48 08/13/19 18:48 08/13/19 18:48 08/13/19 18:48 08/13/19 18:48 08/13/19 18:48

Qual

Analytical Method: EPA 6010 Preparation Method: EPA 3010 384 ND ND 197 ND ND ND 31300 11.9 ND ND 524 ND 464 188 16.0 ND ND ND ND 90600 ND 78900 55.0

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

75.0 15.0 10.0 5.0 1.0 100 5.0 200 5.0 5.0 10.0 50.0 10.0 10.0 50.0 5.0 20.0 5.0 15.0 7.0 500 20.0 705 50.0

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

7440-66-6

Analytical Method: EPA 6010 Preparation Method: EPA 3010 92.4 ND ND 161 ND ND ND 11.1 ND ND ND ND 447 ND ND ND ND ND ND 88600 ND

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

75.0 15.0 10.0 5.0 1.0 100 5.0 5.0 5.0 10.0 50.0 10.0 10.0 50.0 5.0 20.0 5.0 15.0 7.0 500 20.0

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/05/2019 04:06 PM

without the written consent of Pace Analytical Services, LLC.

Page 11 of 43

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

Sample: TW - 4 Parameters 6010 MET ICP, Dissolved Zinc, Dissolved 7470 Mercury Mercury 7470 Mercury, Dissolved Mercury, Dissolved 2540C Total Dissolved Solids Total Dissolved Solids Wet Chemistry 9020B Total Organic Halides 300.0 IC Anions 28 Days Chloride Fluoride Sulfate 353.2 Nitrogen, NO2/NO3 unpres Nitrogen, NO2 plus NO3 Nitrogen, Nitrate Nitrogen, Nitrite 5310C TOC Total Organic Carbon 7196 Chromium, Hexavalent Chromium, Hexavalent 7196 Chromium, Hexavalent Diss Chromium, Hexavalent,Dissolved

Lab ID: 60311438003 Results

Collected: 08/09/19 10:40

Units

Report Limit

Received: 08/09/19 12:48

Prepared

Matrix: Water

Analyzed

CAS No.

Qual

Analytical Method: EPA 6010 Preparation Method: EPA 3010 ND

ug/L

50.0

08/13/19 08:58 08/13/19 18:48 7440-66-6

Analytical Method: EPA 7470 Preparation Method: EPA 7470 ND

ug/L

0.20

08/14/19 13:55 08/15/19 14:38 7439-97-6

Analytical Method: EPA 7470 Preparation Method: EPA 7470 0.37

ug/L

0.20

40.0

08/14/19 13:55 08/15/19 13:34 7439-97-6

Analytical Method: SM 2540C 968

mg/L

08/14/19 10:59

Analytical Method: EPA 9020 Preparation Method: 9020B ND

ug/L

100

08/16/19 12:55 08/16/19 12:55

1.0 0.20 1.0

1 1 1

08/22/19 12:09 16887-00-6 08/22/19 12:09 16984-48-8 08/22/19 12:09 14808-79-8

0.10 0.10 0.10

1 1 1

08/09/19 17:51 08/09/19 17:51 14797-55-8 08/09/19 17:51 14797-65-0

2.0

08/15/19 14:04 7440-44-0

0.010

08/09/19 18:00 18540-29-9

0.010

08/09/19 18:07 18540-29-9

Analytical Method: EPA 300.0 1.8 0.36 3.0

mg/L mg/L mg/L

Analytical Method: EPA 353.2 ND ND ND

mg/L mg/L mg/L

Analytical Method: SM 5310C 19.5

mg/L

Analytical Method: EPA 7196 0.015

mg/L

Analytical Method: EPA 7196 0.014

mg/L

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/05/2019 04:06 PM

without the written consent of Pace Analytical Services, LLC.

Page 12 of 43

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

QC Batch:

603181

Analysis Method:

EPA 7470

QC Batch Method:

EPA 7470

Analysis Description:

7470 Mercury

Associated Lab Samples: METHOD BLANK:

60311438001, 60311438002, 60311438003

2466660

Associated Lab Samples: Parameter

Matrix: Water

60311438001, 60311438002, 60311438003 Blank Units Result

Mercury

ug/L

LABORATORY CONTROL SAMPLE: Parameter

0.20

Spike Conc.

ug/L

LCS Result 5

Mercury

2466662 MS 60311344002 Spike Units Result Conc. ug/L

Qualifiers

08/15/19 14:06

LCS % Rec 5.0

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

Parameter

Analyzed

2466661 Units

Mercury

Reporting Limit

% Rec Limits 100

Qualifiers

80-120

2466663 MSD Spike Conc. 5

MS Result 5

4.8

MSD Result

MS % Rec

4.8

MSD % Rec 95

% Rec Limits

Max RPD RPD

75-125

Qual

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/05/2019 04:06 PM

without the written consent of Pace Analytical Services, LLC.

Page 13 of 43

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

QC Batch:

603178

Analysis Method:

EPA 7470

QC Batch Method:

EPA 7470

Analysis Description:

7470 Mercury ,Dissolved

Associated Lab Samples: METHOD BLANK:

60311438001, 60311438002, 60311438003

2466653

Associated Lab Samples: Parameter

Matrix: Water

60311438001, 60311438002, 60311438003 Blank Units Result

Mercury, Dissolved

ug/L

LABORATORY CONTROL SAMPLE: Parameter

0.20

Spike Conc.

ug/L

LCS Result 5

Mercury, Dissolved

2466655 MS 60311438003 Spike Units Result Conc. ug/L

Qualifiers

08/15/19 13:02

0.37

LCS % Rec 4.9

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

Parameter

Analyzed

2466654 Units

Mercury, Dissolved

Reporting Limit

% Rec Limits 99

Qualifiers

80-120

2466656 MSD Spike Conc. 5

MS Result 5

4.8

MSD Result

MS % Rec

5.0

MSD % Rec 92

% Rec Limits

Max RPD RPD

75-125

Qual

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/05/2019 04:06 PM

without the written consent of Pace Analytical Services, LLC.

Page 14 of 43

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

QC Batch:

602767

Analysis Method:

EPA 6010

QC Batch Method:

EPA 3010

Analysis Description:

6010 MET

Associated Lab Samples: METHOD BLANK:

60311438001, 60311438002, 60311438003

2465275

LABORATORY CONTROL SAMPLE: Parameter Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper Hardness, Total(SM 2340B)

Matrix: Water

60311438001, 60311438002, 60311438003 Blank Units Result ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

Reporting Limit

ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

75.0 15.0 10.0 5.0 1.0 100 5.0 200 5.0 5.0 10.0 705 50.0 10.0 10.0 50.0 5.0 20.0 5.0 15.0 7.0 500 20.0 50.0

Analyzed

Qualifiers

2465276 Units ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

Spike Conc. 10000 1000 1000 1000 1000 1000 1000 10000 1000 1000 1000 66200

LCS Result 9940 1020 932 981 972 1000 991 9850 963 986 1020 66200

LCS % Rec

% Rec Limits 99 102 93 98 97 100 99 98 96 99 102 100

Qualifiers

80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/05/2019 04:06 PM

without the written consent of Pace Analytical Services, LLC.

Page 15 of 43

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

LABORATORY CONTROL SAMPLE: Parameter

2465276 Spike Conc.

Units

Iron Lead Lithium Magnesium Manganese Molybdenum Nickel Selenium Silver Sodium Thallium Zinc

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

LCS Result

10000 1000 1000 10000 1000 1000 1000 1000 500 10000 1000 1000

9920 1050 983 10100 995 1020 1010 1010 500 10100 1030 963

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

2465277 MS 60311439001 Spike Units Result Conc. ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

80.4 ND 12.9 1150 ND ND ND 94500 ND ND ND 335000 5190 ND ND 24000 1640 ND ND ND ND 82300 ND 227

10000 1000 1000 1000 1000 1000 1000 10000 1000 1000 1000 66200 10000 1000 1000 10000 1000 1000 1000 1000 500 10000 1000 1000

LCS % Rec

% Rec Limits 99 105 98 101 99 102 101 101 100 101 103 96

Qualifiers

80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120

2465278 MSD Spike Conc. 10000 1000 1000 1000 1000 1000 1000 10000 1000 1000 1000 66200 10000 1000 1000 10000 1000 1000 1000 1000 500 10000 1000 1000

MS Result

MSD Result

10300 1060 994 2120 1000 1060 1020 101000 976 982 1040 388000 15000 1040 1040 32800 2550 1050 999 1030 512 90000 1000 1170

9920 1030 966 2030 966 1030 986 97700 940 949 1010 374000 14500 1000 1000 31600 2470 1020 968 1020 494 86800 961 1130

MS % Rec 102 105 98 96 100 103 102 69 98 98 104 80 98 103 103 87 91 105 100 103 102 77 100 94

MSD % Rec 98 102 95 88 97 100 99 32 94 95 101 59 93 100 99 76 84 102 97 102 99 45 96 90

% Rec Limits

Max RPD RPD

75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125

3 3 3 4 3 3 3 4 4 3 3 4 3 3 4 4 3 3 3 1 4 4 4 3

Qual

20 20 20 20 20 20 20 20 M1 20 20 20 20 20 20 20 20 20 20 20 20 20 20 M1 20 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/05/2019 04:06 PM

without the written consent of Pace Analytical Services, LLC.

Page 16 of 43

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

QC Batch:

602764

Analysis Method:

EPA 6010

QC Batch Method:

EPA 3010

Analysis Description:

6010 MET Dissolved

Associated Lab Samples: METHOD BLANK:

60311438001, 60311438002, 60311438003

2465264

Matrix: Water

60311438001, 60311438002, 60311438003 Blank Units Result ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

Reporting Limit

ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

75.0 15.0 10.0 5.0 1.0 100 5.0 5.0 5.0 10.0 50.0 10.0 10.0 50.0 5.0 20.0 5.0 15.0 7.0 500 20.0 50.0

Analyzed

Qualifiers

2465265 Units ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

Spike Conc. 10000 1000 1000 1000 1000 1000 1000 1000 1000 1000 10000 1000 1000 10000

LCS Result 10100 1020 950 986 990 992 994 980 999 999 10200 1070 987 10200

LCS % Rec

% Rec Limits 101 102 95 99 99 99 99 98 100 100 102 107 99 102

Qualifiers

80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/05/2019 04:06 PM

without the written consent of Pace Analytical Services, LLC.

Page 17 of 43

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

LABORATORY CONTROL SAMPLE:

2465265

Parameter

Units

Manganese, Dissolved Molybdenum, Dissolved Nickel, Dissolved Selenium, Dissolved Silver, Dissolved Sodium, Dissolved Thallium, Dissolved Zinc, Dissolved

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

Spike Conc.

LCS Result

1000 1000 1000 1000 500 10000 1000 1000

998 1030 1020 1010 502 10000 1040 994

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

2465266 MS 60311540001 Spike Units Result Conc. ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

17800 ND 62.7 581 1.6 125 ND 25.7 55.6 41.1 42500 67.0 14.2 24400 10900 ND 68.2 ND ND 181000 ND 108

10000 1000 1000 1000 1000 1000 1000 1000 1000 1000 10000 1000 1000 10000 1000 1000 1000 1000 500 10000 1000 1000

LCS % Rec

% Rec Limits 100 103 102 101 100 100 104 99

Qualifiers

80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120

2465267 MSD Spike Conc. 10000 1000 1000 1000 1000 1000 1000 1000 1000 1000 10000 1000 1000 10000 1000 1000 1000 1000 500 10000 1000 1000

MS Result

MSD Result

36900 916 1010 1540 960 1110 974 968 979 1030 52600 1020 1010 33700 11300 986 1000 979 491 184000 910 1020

38000 922 1000 1560 970 1140 980 986 987 1040 54000 1030 1030 34400 11600 993 1010 987 498 191000 905 1030

MS % Rec 191 91 95 95 96 98 97 94 92 99 101 96 100 92 36 98 93 98 98 31 91 92

MSD % Rec 202 92 94 98 97 101 98 96 93 100 115 97 101 100 72 99 94 99 100 102 90 93

% Rec Limits

Max RPD RPD

75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125

3 1 1 2 1 2 1 2 1 1 3 1 1 2 3 1 1 1 1 4 1 1

Qual

20 M1 20 20 20 20 20 20 20 20 20 20 20 20 20 20 M1 20 20 20 20 20 M1 20 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/05/2019 04:06 PM

without the written consent of Pace Analytical Services, LLC.

Page 18 of 43

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

QC Batch:

603025

Analysis Method:

SM 2540C

QC Batch Method:

SM 2540C

Analysis Description:

2540C Total Dissolved Solids

Associated Lab Samples: METHOD BLANK:

60311438001, 60311438002, 60311438003

2466169

Associated Lab Samples: Parameter Total Dissolved Solids

mg/L

LABORATORY CONTROL SAMPLE: Parameter

5.0

Analyzed

Qualifiers

08/14/19 10:57

Spike Conc.

LCS Result

LCS % Rec

% Rec Limits

mg/L

1000

1100

110

80-120

Units

60311486004 Result

Dup Result

RPD

Max RPD

mg/L

374

Units

60311344004 Result

mg/L

634

Qualifiers

2466171

Parameter Total Dissolved Solids

SAMPLE DUPLICATE:

Reporting Limit

2466170 Units

Total Dissolved Solids

SAMPLE DUPLICATE:

Matrix: Water

60311438001, 60311438002, 60311438003 Blank Units Result

392

Qualifiers 10

2466172

Parameter Total Dissolved Solids

Dup Result

Max RPD

RPD 663

Qualifiers 10

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/05/2019 04:06 PM

without the written consent of Pace Analytical Services, LLC.

Page 19 of 43

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

QC Batch:

1328210

Analysis Method:

EPA 9020

QC Batch Method:

9020B

Analysis Description:

Wet Chemistry 9020B

Associated Lab Samples: METHOD BLANK:

60311438001, 60311438002, 60311438003

R3440950-2

Associated Lab Samples: Parameter

Matrix: Water

60311438001, 60311438002, 60311438003 Blank Units Result

Total Organic Halides

METHOD BLANK:

ug/L

R3441325-2

Associated Lab Samples: Parameter

Reporting Limit 100

Qualifiers

08/15/19 13:34

Matrix: Water

60311438001, 60311438002, 60311438003 Blank Units Result

Total Organic Halides

ug/L

LABORATORY CONTROL SAMPLE: Parameter

Parameter

Spike Conc.

LCS Result

200

Qualifiers

08/16/19 09:37

LCS % Rec 213

% Rec Limits 107

Qualifiers

85.0-115

R3441325-1 Spike Conc.

Units

Total Organic Halides

100

Analyzed

R3440950-1

ug/L

LABORATORY CONTROL SAMPLE:

Reporting Limit

Units

Total Organic Halides

ug/L

LCS Result

200

Parameter

Units

R3440950-5 MS L1128226-01 Spike Result Conc.

Total Organic Halides

ug/L

60.8

LCS % Rec 190

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

SAMPLE DUPLICATE:

Analyzed

% Rec Limits

95.1

Qualifiers

85.0-115

R3440950-6 MSD Spike Conc.

200

MS Result

MSD Result

266

MS % Rec

281

MSD % Rec

103

% Rec Limits

110 80.0-120

Max RPD RPD 5.50

Qual

R3440950-3

Parameter Total Organic Halides

Units

L1128116-02 Result

ug/L

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/05/2019 04:06 PM

without the written consent of Pace Analytical Services, LLC.

Page 20 of 43

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

SAMPLE DUPLICATE:

R3440950-4

Parameter Total Organic Halides

SAMPLE DUPLICATE:

Total Organic Halides

ug/L

Units

L1128944-02 Result

ug/L

Units

L1128944-03 Result

ug/L

Units

L1128944-04 Result

ug/L

Units

60311438001 Result

ug/L

Units

60311438002 Result

ug/L

Units

60311438003 Result

ug/L

20 D8

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

R3441325-8

Parameter Total Organic Halides

SAMPLE DUPLICATE:

L1128944-01 Result

29.8

R3441325-7

Parameter

SAMPLE DUPLICATE:

Units

Qualifiers

R3441325-6

Parameter

SAMPLE DUPLICATE:

60.8

Max RPD

RPD

R3441325-5

Parameter

SAMPLE DUPLICATE:

ug/L

Dup Result

R3441325-4

Parameter

SAMPLE DUPLICATE:

L1128226-01 Result

R3441325-3

Parameter

SAMPLE DUPLICATE:

Units

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

R3441325-9

Parameter Total Organic Halides

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/05/2019 04:06 PM

without the written consent of Pace Analytical Services, LLC.

Page 21 of 43

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

SAMPLE DUPLICATE:

R3441325-11

Parameter Total Organic Halides

SAMPLE DUPLICATE:

Total Organic Halides

Units

L1129132-04 Result

ug/L

Units

L1129132-05 Result

ug/L

Units

L1129132-06 Result

ug/L

Units

L1129629-02 Result

ug/L

Max RPD

RPD ND

0.00

Qualifiers 20

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

R3441325-15

Parameter Total Organic Halides

SAMPLE DUPLICATE:

ug/L

Dup Result

R3441325-14

Parameter

SAMPLE DUPLICATE:

L1129132-02 Result

R3441325-13

Parameter

SAMPLE DUPLICATE:

Units

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

R3441325-16

Parameter Total Organic Halides

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/05/2019 04:06 PM

without the written consent of Pace Analytical Services, LLC.

Page 22 of 43

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

QC Batch:

604620

Analysis Method:

EPA 300.0

QC Batch Method:

EPA 300.0

Analysis Description:

300.0 IC Anions

Associated Lab Samples: METHOD BLANK:

60311438001, 60311438002

2471616

Associated Lab Samples:

Matrix: Water

60311438001, 60311438002

Parameter

Blank Result

Units

Chloride Fluoride Sulfate

mg/L mg/L mg/L

LABORATORY CONTROL SAMPLE: Parameter

ND ND ND

1.0 0.20 1.0

Spike Conc.

mg/L mg/L mg/L

LCS Result

5 2.5 5

Chloride Fluoride Sulfate

2471618 MS 60311382002 Spike Units Result Conc. mg/L mg/L mg/L

Qualifiers

08/21/19 16:11 08/21/19 16:11 08/21/19 16:11

137 <2.0 217

50 25 100

LCS % Rec 4.8 2.4 4.6

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

Parameter

Analyzed

2471617 Units

Chloride Fluoride Sulfate

Reporting Limit

% Rec Limits 96 96 93

Qualifiers

90-110 90-110 90-110

2471619 MSD Spike Conc. 50 25 100

MS Result 196 25.3 313

MSD Result

MS % Rec

199 25.5 311

117 96 95

MSD % Rec 124 97 93

% Rec Limits

Max RPD RPD

80-120 80-120 80-120

2 1 1

Qual

15 M1 15 15

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/05/2019 04:06 PM

without the written consent of Pace Analytical Services, LLC.

Page 23 of 43

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

QC Batch:

604880

Analysis Method:

EPA 300.0

QC Batch Method:

EPA 300.0

Analysis Description:

300.0 IC Anions

Associated Lab Samples: METHOD BLANK:

60311438003

2472665

Associated Lab Samples:

Matrix: Water

60311438003

Parameter

Blank Result

Units

Chloride Fluoride Sulfate

mg/L mg/L mg/L

LABORATORY CONTROL SAMPLE: Parameter

ND ND ND

1.0 0.20 1.0

Spike Conc.

mg/L mg/L mg/L

LCS Result

5 2.5 5

Chloride Fluoride Sulfate

2472667 MS 60311438003 Spike Units Result Conc. mg/L mg/L mg/L

Qualifiers

08/22/19 10:38 08/22/19 10:38 08/22/19 10:38

1.8 0.36 3.0

5 2.5 5

LCS % Rec 4.8 2.5 5.1

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

Parameter

Analyzed

2472666 Units

Chloride Fluoride Sulfate

Reporting Limit

% Rec Limits 95 99 101

Qualifiers

90-110 90-110 90-110

2472668 MSD Spike Conc. 5 2.5 5

MS Result 6.4 2.2 7.8

MSD Result

MS % Rec

6.5 2.2 7.8

91 73 96

MSD % Rec 93 74 97

% Rec Limits

Max RPD RPD

80-120 80-120 80-120

1 1 1

Qual

15 15 M1 15

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/05/2019 04:06 PM

without the written consent of Pace Analytical Services, LLC.

Page 24 of 43

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

QC Batch:

602400

Analysis Method:

EPA 353.2

QC Batch Method:

EPA 353.2

Analysis Description:

353.2 Nitrate + Nitrite, Unpres.

Associated Lab Samples: METHOD BLANK:

60311438001, 60311438002, 60311438003

2463979

Associated Lab Samples: Parameter

Matrix: Water

60311438001, 60311438002, 60311438003 Blank Units Result

Nitrogen, Nitrate Nitrogen, Nitrite Nitrogen, NO2 plus NO3

mg/L mg/L mg/L

LABORATORY CONTROL SAMPLE:

Units

Nitrogen, Nitrate Nitrogen, Nitrite Nitrogen, NO2 plus NO3

mg/L mg/L mg/L

0.10 0.10 0.10

Qualifiers

08/09/19 17:41 08/09/19 17:41 08/09/19 17:41

Spike Conc.

LCS Result

LCS % Rec

% Rec Limits

Qualifiers

1 1 2

1.0 1.1 2.1

104 110 107

70-130 90-110 90-110

60311417002 Result

Spike Conc.

MS Result

MS % Rec

2463981

Parameter

Units

Nitrogen, Nitrate Nitrogen, Nitrite Nitrogen, NO2 plus NO3

mg/L mg/L mg/L

SAMPLE DUPLICATE:

ND ND ND

Analyzed

2463980

Parameter

MATRIX SPIKE SAMPLE:

Reporting Limit

ND ND ND

1 1 2

1.0 1.1 2.1

% Rec Limits 105 110 107

Qualifiers

70-130 90-110 90-110

2463982

Parameter Nitrogen, Nitrate Nitrogen, Nitrite Nitrogen, NO2 plus NO3

Units

60311417002 Result

mg/L mg/L mg/L

ND ND ND

Dup Result

RPD ND ND ND

Max RPD

Qualifiers 20 20 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/05/2019 04:06 PM

without the written consent of Pace Analytical Services, LLC.

Page 25 of 43

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

QC Batch:

603146

Analysis Method:

SM 5310C

QC Batch Method:

SM 5310C

Analysis Description:

5310C Total Organic Carbon

Associated Lab Samples: METHOD BLANK:

60311438001, 60311438002

2466510

Associated Lab Samples: Parameter

Units

Total Organic Carbon

Blank Result

mg/L

LABORATORY CONTROL SAMPLE: Parameter

Reporting Limit ND

1.0

Analyzed

Qualifiers

08/14/19 18:47

2466511 Units

Total Organic Carbon

SAMPLE DUPLICATE:

Matrix: Water

60311438001, 60311438002

mg/L

Spike Conc.

LCS Result 5

LCS % Rec

% Rec Limits

5.3

105

80-120

Dup Result

RPD

Max RPD

Qualifiers

2466513

Parameter Total Organic Carbon

Units

60311313001 Result

mg/L

11.5

12.1

Qualifiers 25

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/05/2019 04:06 PM

without the written consent of Pace Analytical Services, LLC.

Page 26 of 43

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

QC Batch:

603372

Analysis Method:

SM 5310C

QC Batch Method:

SM 5310C

Analysis Description:

5310C Total Organic Carbon

Associated Lab Samples: METHOD BLANK:

60311438003

2467321

Associated Lab Samples: Parameter

Units

Total Organic Carbon

Blank Result

mg/L

LABORATORY CONTROL SAMPLE: Parameter

mg/L

MATRIX SPIKE SAMPLE: Parameter

1.0

Analyzed

Qualifiers

08/15/19 10:26

Spike Conc.

LCS Result

LCS % Rec

% Rec Limits

Qualifiers

5.2

104

80-120

60310996003 Result

Spike Conc.

MS Result

MS % Rec

2467323 Units

Total Organic Carbon

Reporting Limit

2467322 Units

Total Organic Carbon

SAMPLE DUPLICATE:

Matrix: Water

60311438003

mg/L

14.4

71.8

% Rec Limits 115

Qualifiers

80-120

2467324

Parameter Total Organic Carbon

Units

60311776001 Result

mg/L

6.0

Dup Result

Max RPD

RPD 5.0

Qualifiers 25

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/05/2019 04:06 PM

without the written consent of Pace Analytical Services, LLC.

Page 27 of 43

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

QC Batch:

602401

Analysis Method:

EPA 7196

QC Batch Method:

EPA 7196

Analysis Description:

7196 Chromium, Hexavalent

Associated Lab Samples: METHOD BLANK:

60311438001, 60311438002, 60311438003

2463983

Associated Lab Samples: Parameter Chromium, Hexavalent

mg/L

LABORATORY CONTROL SAMPLE: Parameter

mg/L

MATRIX SPIKE SAMPLE: Parameter

0.010

Analyzed

Qualifiers

08/09/19 17:58

Spike Conc.

LCS Result

LCS % Rec

% Rec Limits

0.1

0.090

90-110

60311438001 Result

Spike Conc.

MS Result

MS % Rec

Qualifiers

2463985 Units

Chromium, Hexavalent

Reporting Limit

2463984 Units

Chromium, Hexavalent

SAMPLE DUPLICATE:

Matrix: Water

60311438001, 60311438002, 60311438003 Blank Units Result

mg/L

0.1

0.097

% Rec Limits 97

Qualifiers

85-115

2463986

Parameter Chromium, Hexavalent

Units

60311438001 Result

mg/L

Dup Result

RPD ND

Max RPD

Qualifiers 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/05/2019 04:06 PM

without the written consent of Pace Analytical Services, LLC.

Page 28 of 43

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

QC Batch:

602403

Analysis Method:

EPA 7196

QC Batch Method:

EPA 7196

Analysis Description:

7196 Chromium, Hexavalent Diss

Associated Lab Samples: METHOD BLANK:

60311438001, 60311438002, 60311438003

2463991

Associated Lab Samples: Parameter

Chromium, Hexavalent,Dissolved

LABORATORY CONTROL SAMPLE: Parameter

mg/L

MATRIX SPIKE SAMPLE: Parameter

mg/L

0.010

Analyzed

Qualifiers

08/09/19 18:01

Spike Conc.

LCS Result

LCS % Rec

% Rec Limits

0.1

0.091

90-110

60311438001 Result

Spike Conc.

MS Result

MS % Rec

Qualifiers

2463993 Units

Chromium, Hexavalent,Dissolved

Reporting Limit

2463992 Units

Chromium, Hexavalent,Dissolved

SAMPLE DUPLICATE:

Matrix: Water

60311438001, 60311438002, 60311438003 Blank Units Result

mg/L

0.1

0.094

% Rec Limits 94

Qualifiers

85-115

2463994

Parameter Chromium, Hexavalent,Dissolved

Units

60311438001 Result

mg/L

Dup Result

RPD ND

Max RPD

Qualifiers 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/05/2019 04:06 PM

without the written consent of Pace Analytical Services, LLC.

Page 29 of 43

#=ARR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS - RADIOCHEMISTRY Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

Sample: MW-11 PWS: Parameters

Lab ID: 60311438001 Site ID: Method

Radium-226

EPA 903.1

Radium-228

EPA 904.0

Collected: 08/09/19 08:20 Sample Type:

Received: 08/09/19 12:48

Act ± Unc (MDC) Carr Trac 1.51 ± 0.696 (0.582) C:NA T:97% 0.597 ± 0.420 (0.817) C:78% T:88%

Units

Analyzed

Matrix: Water

CAS No.

Qual

pCi/L

09/03/19 11:27 13982-63-3

pCi/L

08/29/19 14:18 15262-20-1

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 30 of 43

#=ARR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS - RADIOCHEMISTRY Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

Sample: TW -1 PWS: Parameters

Lab ID: 60311438002 Site ID: Method

Radium-226

EPA 903.1

Radium-228

EPA 904.0

Collected: 08/09/19 10:40 Sample Type:

Received: 08/09/19 12:48

Act ± Unc (MDC) Carr Trac 1.86 ± 0.791 (0.219) C:NA T:87% 0.297 ± 0.353 (0.745) C:83% T:89%

Units

Analyzed

Matrix: Water

CAS No.

Qual

pCi/L

09/03/19 11:27 13982-63-3

pCi/L

08/29/19 14:18 15262-20-1

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 31 of 43

#=ARR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS - RADIOCHEMISTRY Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

Sample: TW - 4 PWS: Parameters

Lab ID: 60311438003 Site ID: Method

Radium-226

EPA 903.1

Radium-228

EPA 904.0

Collected: 08/09/19 10:40 Sample Type:

Received: 08/09/19 12:48

Act ± Unc (MDC) Carr Trac 3.24 ± 1.57 (1.37) C:NA T:79% 1.48 ± 0.828 (1.51) C:79% T:74%

Units

Analyzed

Matrix: Water

CAS No.

Qual

pCi/L

09/03/19 11:27 13982-63-3

pCi/L

08/29/19 14:18 15262-20-1

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 32 of 43

#=QCR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL - RADIOCHEMISTRY Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

QC Batch:

357630

Analysis Method:

EPA 903.1

QC Batch Method:

EPA 903.1

Analysis Description:

903.1 Radium-226

Associated Lab Samples: METHOD BLANK:

1736661

Associated Lab Samples: Parameter Radium-226

60311438001, 60311438002, 60311438003 Matrix: Water

60311438001, 60311438002, 60311438003 Act ± Unc (MDC) Carr Trac 0.567 ± 0.420 (0.568) C:NA T:85%

Units

Analyzed

pCi/L

09/03/19 11:27

Qualifiers

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 33 of 43

#=QCR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL - RADIOCHEMISTRY Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

QC Batch:

357629

Analysis Method:

EPA 904.0

QC Batch Method:

EPA 904.0

Analysis Description:

904.0 Radium 228

Associated Lab Samples: METHOD BLANK:

1736658

Associated Lab Samples: Parameter Radium-228

60311438001, 60311438002, 60311438003 Matrix: Water

60311438001, 60311438002, 60311438003 Act ± Unc (MDC) Carr Trac

Units

Analyzed

-0.130 ± 0.326 (0.786) C:81% T:80%

pCi/L

08/29/19 14:21

Qualifiers

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 34 of 43

#=QL#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALIFIERS Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Act - Activity Unc - Uncertainty: SDWA = 1.96 sigma count uncertainty, all other matrices = Expanded Uncertainty (95% confidence interval). Gamma Spec = Expanded Uncertainty (95.4% Confidence Interval) (MDC) - Minimum Detectable Concentration Trac - Tracer Recovery (%) Carr - Carrier Recovery (%) Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. LABORATORIES PAN

Pace Analytical National

PASI-K

Pace Analytical Services - Kansas City

PASI-PA

Pace Analytical Services - Greensburg

ANALYTE QUALIFIERS

Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/05/2019 04:06 PM

without the written consent of Pace Analytical Services, LLC.

Page 35 of 43

#=CR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA CROSS REFERENCE TABLE Project:

IPL INDEPENDENCE

Pace Project No.:

60311438

Lab ID

Sample ID

QC Batch Method

QC Batch

Analytical Method

Analytical Batch

60311438001 60311438002 60311438003

MW-11 TW -1 TW - 4

EPA 3010 EPA 3010 EPA 3010

602767 602767 602767

EPA 6010 EPA 6010 EPA 6010

602810 602810 602810

60311438001 60311438002 60311438003

MW-11 TW -1 TW - 4

EPA 3010 EPA 3010 EPA 3010

602764 602764 602764

EPA 6010 EPA 6010 EPA 6010

602808 602808 602808

60311438001 60311438002 60311438003

MW-11 TW -1 TW - 4

EPA 7470 EPA 7470 EPA 7470

603181 603181 603181

EPA 7470 EPA 7470 EPA 7470

603250 603250 603250

60311438001 60311438002 60311438003

MW-11 TW -1 TW - 4

EPA 7470 EPA 7470 EPA 7470

603178 603178 603178

EPA 7470 EPA 7470 EPA 7470

603248 603248 603248

60311438001 60311438002 60311438003

MW-11 TW -1 TW - 4

EPA 903.1 EPA 903.1 EPA 903.1

357630 357630 357630

60311438001 60311438002 60311438003

MW-11 TW -1 TW - 4

EPA 904.0 EPA 904.0 EPA 904.0

357629 357629 357629

60311438001 60311438002 60311438003

MW-11 TW -1 TW - 4

SM 2540C SM 2540C SM 2540C

603025 603025 603025

60311438001 60311438002 60311438003

MW-11 TW -1 TW - 4

9020B 9020B 9020B

1328210 1328210 1328210

EPA 9020 EPA 9020 EPA 9020

1328210 1328210 1328210

60311438001 60311438002

MW-11 TW -1

EPA 300.0 EPA 300.0

604620 604620

60311438003

TW - 4

EPA 300.0

604880

60311438001 60311438002 60311438003

MW-11 TW -1 TW - 4

EPA 353.2 EPA 353.2 EPA 353.2

602400 602400 602400

60311438001 60311438002

MW-11 TW -1

SM 5310C SM 5310C

603146 603146

60311438003

TW - 4

SM 5310C

603372

60311438001 60311438002 60311438003

MW-11 TW -1 TW - 4

EPA 7196 EPA 7196 EPA 7196

602401 602401 602401

60311438001 60311438002 60311438003

MW-11 TW -1 TW - 4

EPA 7196 EPA 7196 EPA 7196

602403 602403 602403

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/05/2019 04:06 PM

without the written consent of Pace Analytical Services, LLC.

Page 36 of 43

Page 37 of 43

Page 38 of 43

Page 39 of 43

Page 40 of 43

Page 41 of 43

Page 42 11 of 43 12

Page 43 12 of 43 12

#=CL#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

LIMS USE: FR - ANDREA COLLIER LIMS OBJECT ID: 60313216

September 03, 2019

Andrea Collier Barr Engineering 1001 Diamond Ridge, Ste 1100 Jefferson City, MO 65109

RE: Project: IPL Pace Project No.: 60313216 Dear Andrea Collier: Enclosed are the analytical results for sample(s) received by the laboratory on August 28, 2019. The results relate only to the samples included in this report. Results reported herein conform to the most current, applicable TNI/NELAC standards and the laboratory's Quality Assurance Manual, where applicable, unless otherwise noted in the body of the report. If you have any questions concerning this report, please feel free to contact me. Sincerely,

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 1 of 11

#=CP#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

CERTIFICATIONS Project:

IPL

Pace Project No.:

60313216

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 2 of 11

#=SS#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

SAMPLE SUMMARY Project:

IPL

Pace Project No.:

60313216

Lab ID

Sample ID

Matrix

Date Collected

Date Received

60313216001

WC-2

Solid

08/09/19 17:50

08/28/19 08:22

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 3 of 11

#=SA#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

SAMPLE ANALYTE COUNT Project:

IPL

Pace Project No.:

60313216 Analytes Reported

Lab ID

Sample ID

Method

Analysts

60313216001

WC-2

EPA 6010

HKC

PASI-K

EPA 7470

JLH

PASI-K

Laboratory

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 4 of 11

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL

Pace Project No.:

60313216

Sample: WC-2

Lab ID: 60313216001

Collected: 08/09/19 17:50

Received: 08/28/19 08:22

Matrix: Solid

Results reported on a "dry weight" basis and are adjusted for percent moisture, sample size and any dilutions. Parameters 6010 MET ICP, TCLP

Results

Units

Report Limit

Prepared

Analyzed

CAS No.

Qual

Analytical Method: EPA 6010 Preparation Method: EPA 3010 Leachate Method/Date: EPA 1311; 08/29/19 10:03 Initial pH: 7.21; Final pH: 5.12

Arsenic Barium Cadmium Chromium Lead Selenium Silver 7470 Mercury, TCLP

ND ND ND ND ND ND ND

mg/L mg/L mg/L mg/L mg/L mg/L mg/L

0.50 2.5 0.050 0.10 0.50 0.50 0.10

1 1 1 1 1 1 1

08/29/19 12:44 08/29/19 12:44 08/29/19 12:44 08/29/19 12:44 08/29/19 12:44 08/29/19 12:44 08/29/19 12:44

08/30/19 10:15 08/30/19 10:15 08/30/19 10:15 08/30/19 10:15 08/30/19 10:15 08/30/19 10:15 08/30/19 10:15

7440-38-2 7440-39-3 7440-43-9 7440-47-3 7439-92-1 7782-49-2 7440-22-4

Analytical Method: EPA 7470 Preparation Method: EPA 7470 Leachate Method/Date: EPA 1311; 08/29/19 10:03 Initial pH: 7.21; Final pH: 5.12

Mercury

mg/L

0.0020

08/29/19 11:49 08/30/19 15:43 7439-97-6

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/03/2019 05:14 PM

without the written consent of Pace Analytical Services, LLC.

Page 5 of 11

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL

Pace Project No.:

60313216

QC Batch:

606405

Analysis Method:

EPA 7470

QC Batch Method:

EPA 7470

Analysis Description:

7470 Mercury TCLP

Associated Lab Samples: METHOD BLANK:

60313216001

2477068

Associated Lab Samples:

Matrix: Water

60313216001

Parameter

Blank Result

Units

Mercury

mg/L

LABORATORY CONTROL SAMPLE: Parameter

0.0020

Spike Conc.

mg/L

LCS Result

0.015

Mercury

2478422 MS 60312945001 Spike Units Result Conc. mg/L

Qualifiers

09/03/19 16:28

0.015

LCS % Rec

0.016

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

Parameter

Analyzed

2478421 Units

Mercury

Reporting Limit

% Rec Limits 107

Qualifiers

80-120

2478423 MSD Spike Conc. 0.015

MS Result 0.016

MSD Result

MS % Rec

0.015

103

MSD % Rec 100

% Rec Limits

Max RPD RPD

75-125

Qual

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/03/2019 05:14 PM

without the written consent of Pace Analytical Services, LLC.

Page 6 of 11

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL

Pace Project No.:

60313216

QC Batch:

606414

Analysis Method:

EPA 6010

QC Batch Method:

EPA 3010

Analysis Description:

6010 MET TCLP

Associated Lab Samples: METHOD BLANK:

60313216001

2477068

Associated Lab Samples:

Matrix: Water

60313216001

Parameter

Blank Result

Units

Arsenic Barium Cadmium Chromium Lead Selenium Silver

mg/L mg/L mg/L mg/L mg/L mg/L mg/L

LABORATORY CONTROL SAMPLE: Parameter

ND ND ND ND ND ND ND

0.50 2.5 0.050 0.10 0.50 0.50 0.10

Spike Conc.

mg/L mg/L mg/L mg/L mg/L mg/L mg/L

LCS Result

10 10 10 10 10 10 5

Arsenic Barium Cadmium Chromium Lead Selenium Silver

2478443 MS 60312945001 Spike Units Result Conc. mg/L mg/L mg/L mg/L mg/L mg/L mg/L

Qualifiers

08/30/19 09:40 08/30/19 09:40 08/30/19 09:40 08/30/19 09:40 08/30/19 09:40 08/30/19 09:40 08/30/19 09:40

ND ND ND ND ND ND ND

10 10 10 10 10 10 5

LCS % Rec 9.4 10.3 9.8 9.8 10.2 10 5.0

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

Parameter

Analyzed

2478442 Units

Arsenic Barium Cadmium Chromium Lead Selenium Silver

Reporting Limit

% Rec Limits 94 103 98 98 102 100 99

Qualifiers

80-120 80-120 80-120 80-120 80-120 80-120 80-120

2478444 MSD Spike Conc. 10 10 10 10 10 10 5

MS Result 9.2 9.9 9.6 9.6 10 9.7 4.9

MSD Result

MS % Rec

9.3 10 9.7 9.6 10 9.8 4.9

92 96 96 95 100 96 97

MSD % Rec 93 97 97 96 100 97 98

% Rec Limits

Max RPD RPD

75-125 75-125 75-125 72-127 75-125 75-125 75-125

1 1 1 0 0 1 1

Qual

20 20 20 20 20 20 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/03/2019 05:14 PM

without the written consent of Pace Analytical Services, LLC.

Page 7 of 11

#=QL#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALIFIERS Project:

IPL

Pace Project No.:

60313216

Pace Analytical Services - Kansas City

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/03/2019 05:14 PM

without the written consent of Pace Analytical Services, LLC.

Page 8 of 11

#=CR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA CROSS REFERENCE TABLE Project:

IPL

Pace Project No.:

60313216

Lab ID

Sample ID

QC Batch Method

QC Batch

Analytical Method

Analytical Batch

60313216001

WC-2

EPA 3010

606414

EPA 6010

606469

60313216001

WC-2

EPA 7470

606405

EPA 7470

606462

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 09/03/2019 05:14 PM

without the written consent of Pace Analytical Services, LLC.

Page 9 of 11

Page 10 of 11

Page 11 of 11

#=CL#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

LIMS USE: FR - ANDREA COLLIER LIMS OBJECT ID: 60313971

October 03, 2019

Andrea Collier Barr Engineering 1001 Diamond Ridge, Ste 1100 Jefferson City, MO 65109

RE: Project: IPL INDEPENDENCE Pace Project No.: 60313971 Dear Andrea Collier: Enclosed are the analytical results for sample(s) received by the laboratory on September 05, 2019. The results relate only to the samples included in this report. Results reported herein conform to the most current, applicable TNI/NELAC standards and the laboratory's Quality Assurance Manual, where applicable, unless otherwise noted in the body of the report. If you have any questions concerning this report, please feel free to contact me. Sincerely,

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 1 of 38

#=CP#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

CERTIFICATIONS Project:

IPL INDEPENDENCE

Pace Project No.:

60313971

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 2 of 38

#=CP#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

CERTIFICATIONS Project:

IPL INDEPENDENCE

Pace Project No.:

60313971

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 3 of 38

#=SS#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

SAMPLE SUMMARY Project:

IPL INDEPENDENCE

Pace Project No.:

60313971

Lab ID

Sample ID

Matrix

Date Collected

Date Received

60313971001

TW-2

Water

09/05/19 11:30

09/05/19 13:25

60313971002

TW-5

Water

09/05/19 11:45

09/05/19 13:25

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 4 of 38

#=SA#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

SAMPLE ANALYTE COUNT Project:

IPL INDEPENDENCE

Pace Project No.:

60313971 Analytes Reported

Lab ID

Sample ID

Method

Analysts

60313971001

TW-2

EPA 6010

JDE

PASI-K

EPA 6010

JDE

PASI-K

EPA 7470

JLH

PASI-K

EPA 7470

JLH

PASI-K

EPA 903.1

MK1

PASI-PA

EPA 904.0

VAL

PASI-PA

60313971002

TW-5

Laboratory

SM 2540C

BLA

PASI-K

Trivalent Chromium Calculation

LDB

PASI-K

Dissolved Trivalent Cr Calc.

LDB

PASI-K

EPA 9020

EEM

PAN

EPA 300.0

MGS

PASI-K

EPA 353.2

AJS

PASI-K

EPA 410.4

MAP

PASI-K

SM 5310C

LDB

PASI-K

EPA 7196

MAP

PASI-K

EPA 7196

MAP

PASI-K

EPA 6010

JDE

PASI-K

EPA 6010

JDE

PASI-K

EPA 7470

JLH

PASI-K

EPA 7470

JLH

PASI-K

EPA 903.1

MK1

PASI-PA

EPA 904.0

VAL

PASI-PA

SM 2540C

BLA

PASI-K

Trivalent Chromium Calculation

LDB

PASI-K

Dissolved Trivalent Cr Calc.

LDB

PASI-K

EPA 9020

EEM

PAN

EPA 300.0

MGS

PASI-K

EPA 353.2

AJS

PASI-K

EPA 410.4

MAP

PASI-K

SM 5310C

LDB

PASI-K

EPA 7196

MAP

PASI-K

EPA 7196

MAP

PASI-K

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 5 of 38

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL INDEPENDENCE

Pace Project No.:

60313971

Sample: TW-2 Parameters 6010 MET ICP Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper Iron Lead Lithium Magnesium Manganese Molybdenum Nickel Selenium Silver Sodium Thallium Hardness, Total(SM 2340B) Zinc 6010 MET ICP, Dissolved Aluminum, Dissolved Antimony, Dissolved Arsenic, Dissolved Barium, Dissolved Beryllium, Dissolved Boron, Dissolved Cadmium, Dissolved Chromium, Dissolved Cobalt, Dissolved Copper, Dissolved Iron, Dissolved Lead, Dissolved Lithium, Dissolved Magnesium, Dissolved Manganese, Dissolved Molybdenum, Dissolved Nickel, Dissolved Selenium, Dissolved Silver, Dissolved Sodium, Dissolved Thallium, Dissolved

Lab ID: 60313971001 Results

Units

Collected: 09/05/19 11:30 Report Limit

Received: 09/05/19 13:25

Prepared

Matrix: Water

Analyzed

CAS No.

09/12/19 11:49 09/12/19 11:49 09/12/19 11:49 09/12/19 11:49 09/12/19 11:49 09/12/19 11:49 09/12/19 11:49 09/12/19 11:49 09/12/19 11:49 09/12/19 11:49 09/12/19 11:49 09/12/19 11:49 09/12/19 11:49 09/12/19 11:49 09/12/19 11:49 09/12/19 11:49 09/12/19 11:49 09/12/19 11:49 09/12/19 11:49 09/12/19 11:49 09/12/19 11:49 09/12/19 11:49 09/12/19 11:49 09/12/19 11:49

09/13/19 15:30 09/13/19 15:30 09/13/19 15:30 09/13/19 15:30 09/13/19 15:30 09/13/19 15:30 09/13/19 15:30 09/13/19 15:30 09/13/19 15:30 09/13/19 15:30 09/13/19 15:30 09/13/19 15:30 09/13/19 15:30 09/13/19 15:30 09/13/19 15:30 09/13/19 15:30 09/13/19 15:30 09/13/19 15:30 09/13/19 15:30 09/13/19 15:30 09/13/19 15:30

Qual

Analytical Method: EPA 6010 Preparation Method: EPA 3010 369 ND ND 59.1 ND 1370 ND 13300 ND ND ND 536 ND ND 4070 69.6 23.2 ND ND ND 213000 ND 50000 194

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

75.0 15.0 10.0 5.0 1.0 100 5.0 200 5.0 5.0 10.0 50.0 10.0 10.0 50.0 5.0 20.0 5.0 15.0 7.0 500 20.0 705 50.0

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

09/11/19 15:44 09/11/19 15:44 09/11/19 15:44 09/11/19 15:44 09/11/19 15:44 09/11/19 15:44 09/11/19 15:44 09/11/19 15:44 09/11/19 15:44 09/11/19 15:44 09/11/19 15:44 09/11/19 15:44 09/11/19 15:44 09/11/19 15:44 09/11/19 15:44 09/11/19 15:44 09/11/19 15:44 09/11/19 15:44 09/11/19 15:44 09/11/19 15:44 09/11/19 15:44 09/11/19 15:44 09/11/19 15:44 09/11/19 15:44

7440-66-6

Analytical Method: EPA 6010 Preparation Method: EPA 3010 ND ND ND 49.4 ND 1440 ND ND ND ND ND ND 11.4 4060 58.3 23.0 ND ND ND 219000 ND

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

75.0 15.0 10.0 5.0 1.0 100 5.0 5.0 5.0 10.0 50.0 10.0 10.0 50.0 5.0 20.0 5.0 15.0 7.0 500 20.0

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

09/13/19 09:52 09/13/19 09:52 09/13/19 09:52 09/13/19 09:52 09/13/19 09:52 09/13/19 09:52 09/13/19 09:52 09/13/19 09:52 09/13/19 09:52 09/13/19 09:52 09/13/19 09:52 09/13/19 09:52 09/13/19 09:52 09/13/19 09:52 09/13/19 09:52 09/13/19 09:52 09/13/19 09:52 09/13/19 09:52 09/13/19 09:52 09/13/19 09:52 09/13/19 09:52

D9,M1

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/03/2019 03:34 PM

without the written consent of Pace Analytical Services, LLC.

Page 6 of 38

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL INDEPENDENCE

Pace Project No.:

60313971

Sample: TW-2 Parameters 6010 MET ICP, Dissolved Zinc, Dissolved 7470 Mercury Mercury 7470 Mercury, Dissolved Mercury, Dissolved 2540C Total Dissolved Solids Total Dissolved Solids Trivalent Chromium Calculation Chromium, Trivalent Dissolved Trivalent Cr Calc. Chromium, Trivalent, Dissolved Wet Chemistry 9020B Total Organic Halides 300.0 IC Anions 28 Days Chloride Fluoride Sulfate 353.2 Nitrogen, NO2/NO3 unpres Nitrogen, NO2 plus NO3 Nitrogen, Nitrate Nitrogen, Nitrite 410.4 COD Chemical Oxygen Demand 5310C TOC Total Organic Carbon 7196 Chromium, Hexavalent Chromium, Hexavalent 7196 Chromium, Hexavalent Diss Chromium, Hexavalent,Dissolved

Lab ID: 60313971001 Results

Collected: 09/05/19 11:30

Units

Report Limit

Received: 09/05/19 13:25

Prepared

Matrix: Water

Analyzed

CAS No.

Qual

Analytical Method: EPA 6010 Preparation Method: EPA 3010 ND

ug/L

50.0

09/13/19 09:52 09/13/19 15:30 7440-66-6

Analytical Method: EPA 7470 Preparation Method: EPA 7470 ND

ug/L

0.20

09/10/19 12:25 09/10/19 16:36 7439-97-6

Analytical Method: EPA 7470 Preparation Method: EPA 7470 ND

ug/L

0.20

10.0

09/10/19 12:25 09/10/19 16:22 7439-97-6

Analytical Method: SM 2540C 608

mg/L

09/10/19 13:03

Analytical Method: Trivalent Chromium Calculation ND

mg/L

0.010

09/19/19 16:04 16065-83-1

09/19/19 16:06 16065-83-1

Analytical Method: Dissolved Trivalent Cr Calc. ND

mg/L

0.010

Analytical Method: EPA 9020 Preparation Method: 9020B ND

mg/L

0.100

09/16/19 11:44 09/16/19 11:44

10.0 0.20 10.0

10 1 10

09/12/19 17:39 16887-00-6 09/12/19 16:52 16984-48-8 09/12/19 17:39 14808-79-8

0.10 0.10 0.10

1 1 1

09/07/19 10:29 09/07/19 10:29 14797-55-8 09/07/19 10:29 14797-65-0

Analytical Method: EPA 300.0 34.8 1.1 37.8

mg/L mg/L mg/L

Analytical Method: EPA 353.2 ND ND ND

mg/L mg/L mg/L

Analytical Method: EPA 410.4 Preparation Method: EPA 410.4 10.8

mg/L

10.0

09/13/19 11:12 09/16/19 08:42

1.0

09/17/19 16:14 7440-44-0

0.010

09/05/19 18:15 18540-29-9

0.010

09/05/19 18:19 18540-29-9

Analytical Method: SM 5310C 2.7

mg/L

Analytical Method: EPA 7196 ND

mg/L

Analytical Method: EPA 7196 ND

mg/L

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/03/2019 03:34 PM

without the written consent of Pace Analytical Services, LLC.

Page 7 of 38

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL INDEPENDENCE

Pace Project No.:

60313971

Sample: TW-5 Parameters 6010 MET ICP Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper Iron Lead Lithium Magnesium Manganese Molybdenum Nickel Selenium Silver Sodium Thallium Hardness, Total(SM 2340B) Zinc 6010 MET ICP, Dissolved Aluminum, Dissolved Antimony, Dissolved Arsenic, Dissolved Barium, Dissolved Beryllium, Dissolved Boron, Dissolved Cadmium, Dissolved Chromium, Dissolved Cobalt, Dissolved Copper, Dissolved Iron, Dissolved Lead, Dissolved Lithium, Dissolved Magnesium, Dissolved Manganese, Dissolved Molybdenum, Dissolved Nickel, Dissolved Selenium, Dissolved Silver, Dissolved Sodium, Dissolved Thallium, Dissolved

Lab ID: 60313971002 Results

Units

Collected: 09/05/19 11:45 Report Limit

Received: 09/05/19 13:25

Prepared

Matrix: Water

Analyzed

CAS No.

09/12/19 12:00 09/12/19 12:00 09/12/19 12:00 09/12/19 12:00 09/12/19 12:00 09/12/19 12:00 09/12/19 12:00 09/12/19 12:00 09/12/19 12:00 09/12/19 12:00 09/12/19 12:00 09/12/19 12:00 09/12/19 12:00 09/12/19 12:00 09/12/19 12:00 09/12/19 12:00 09/12/19 12:00 09/12/19 12:00 09/12/19 12:00 09/12/19 12:00 09/12/19 12:00 09/12/19 12:00 09/12/19 12:00 09/12/19 12:00

09/13/19 15:36 09/13/19 15:36 09/13/19 15:36 09/13/19 15:36 09/13/19 15:36 09/13/19 15:36 09/13/19 15:36 09/13/19 15:36 09/13/19 15:36 09/13/19 15:36 09/13/19 15:36 09/13/19 15:36 09/13/19 15:36 09/13/19 15:36 09/13/19 15:36 09/13/19 15:36 09/13/19 15:36 09/13/19 15:36 09/13/19 15:36 09/13/19 15:36 09/13/19 15:36

Qual

Analytical Method: EPA 6010 Preparation Method: EPA 3010 252 ND ND 52.6 ND 1400 ND 13000 ND ND ND 304 ND ND 4060 60.0 25.1 ND ND ND 215000 ND 49300 ND

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

75.0 15.0 10.0 5.0 1.0 100 5.0 200 5.0 5.0 10.0 50.0 10.0 10.0 50.0 5.0 20.0 5.0 15.0 7.0 500 20.0 705 50.0

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

7440-66-6

Analytical Method: EPA 6010 Preparation Method: EPA 3010 ND ND ND 44.6 ND 1350 ND ND ND ND ND ND 10.3 3770 53.8 22.9 ND ND ND 203000 ND

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

75.0 15.0 10.0 5.0 1.0 100 5.0 5.0 5.0 10.0 50.0 10.0 10.0 50.0 5.0 20.0 5.0 15.0 7.0 500 20.0

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/03/2019 03:34 PM

without the written consent of Pace Analytical Services, LLC.

Page 8 of 38

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL INDEPENDENCE

Pace Project No.:

60313971

Sample: TW-5 Parameters 6010 MET ICP, Dissolved Zinc, Dissolved 7470 Mercury Mercury 7470 Mercury, Dissolved Mercury, Dissolved 2540C Total Dissolved Solids Total Dissolved Solids Trivalent Chromium Calculation Chromium, Trivalent Dissolved Trivalent Cr Calc. Chromium, Trivalent, Dissolved Wet Chemistry 9020B Total Organic Halides 300.0 IC Anions 28 Days Chloride Fluoride Sulfate 353.2 Nitrogen, NO2/NO3 unpres Nitrogen, NO2 plus NO3 Nitrogen, Nitrate Nitrogen, Nitrite 410.4 COD Chemical Oxygen Demand 5310C TOC Total Organic Carbon 7196 Chromium, Hexavalent Chromium, Hexavalent 7196 Chromium, Hexavalent Diss Chromium, Hexavalent,Dissolved

Lab ID: 60313971002 Results

Collected: 09/05/19 11:45

Units

Report Limit

Received: 09/05/19 13:25

Prepared

Matrix: Water

Analyzed

CAS No.

Qual

Analytical Method: EPA 6010 Preparation Method: EPA 3010 ND

ug/L

50.0

09/13/19 09:52 09/13/19 15:36 7440-66-6

Analytical Method: EPA 7470 Preparation Method: EPA 7470 ND

ug/L

0.20

09/10/19 12:25 09/10/19 16:38 7439-97-6

Analytical Method: EPA 7470 Preparation Method: EPA 7470 ND

ug/L

0.20

10.0

09/10/19 12:25 09/10/19 16:29 7439-97-6

Analytical Method: SM 2540C 611

mg/L

09/10/19 13:04

Analytical Method: Trivalent Chromium Calculation ND

mg/L

0.010

09/19/19 16:04 16065-83-1

09/19/19 16:06 16065-83-1

Analytical Method: Dissolved Trivalent Cr Calc. ND

mg/L

0.010

Analytical Method: EPA 9020 Preparation Method: 9020B ND

mg/L

0.100

09/16/19 12:03 09/16/19 12:03

10.0 0.20 10.0

10 1 10

09/12/19 19:59 16887-00-6 09/12/19 19:44 16984-48-8 09/12/19 19:59 14808-79-8

0.10 0.10 0.10

1 1 1

09/07/19 10:31 09/07/19 10:31 14797-55-8 09/07/19 10:31 14797-65-0

Analytical Method: EPA 300.0 34.2 1.1 38.5

mg/L mg/L mg/L

Analytical Method: EPA 353.2 ND ND ND

mg/L mg/L mg/L

Analytical Method: EPA 410.4 Preparation Method: EPA 410.4 30.8

mg/L

10.0

09/13/19 11:12 09/16/19 08:42

1.0

09/17/19 16:41 7440-44-0

0.010

09/05/19 18:17 18540-29-9

0.010

09/05/19 18:20 18540-29-9

Analytical Method: SM 5310C 3.4

mg/L

Analytical Method: EPA 7196 ND

mg/L

Analytical Method: EPA 7196 ND

mg/L

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/03/2019 03:34 PM

without the written consent of Pace Analytical Services, LLC.

Page 9 of 38

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60313971

QC Batch:

608347

Analysis Method:

EPA 7470

QC Batch Method:

EPA 7470

Analysis Description:

7470 Mercury

Associated Lab Samples: METHOD BLANK:

60313971001, 60313971002

2485246

Associated Lab Samples:

Matrix: Water

60313971001, 60313971002

Parameter

Blank Result

Units

Mercury

ug/L

LABORATORY CONTROL SAMPLE: Parameter

0.20

Spike Conc.

ug/L

LCS Result 5

Mercury

2485248 MS 60314108001 Spike Units Result Conc. ug/L

Qualifiers

09/10/19 16:31

LCS % Rec 5.0

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

Parameter

Analyzed

2485247 Units

Mercury

Reporting Limit

% Rec Limits 100

Qualifiers

80-120

2485249 MSD Spike Conc. 5

MS Result 5

4.9

MSD Result

MS % Rec

4.8

MSD % Rec 97

% Rec Limits

Max RPD RPD

75-125

Qual

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/03/2019 03:34 PM

without the written consent of Pace Analytical Services, LLC.

Page 10 of 38

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60313971

QC Batch:

608346

Analysis Method:

EPA 7470

QC Batch Method:

EPA 7470

Analysis Description:

7470 Mercury ,Dissolved

Associated Lab Samples: METHOD BLANK:

60313971001, 60313971002

2485240

Associated Lab Samples:

Matrix: Water

60313971001, 60313971002

Parameter

Blank Result

Units

Mercury, Dissolved

ug/L

LABORATORY CONTROL SAMPLE: Parameter

0.20

Spike Conc.

ug/L

LCS Result 5

Mercury, Dissolved

2485242 MS 60313971001 Spike Units Result Conc. ug/L

Qualifiers

09/10/19 16:18

LCS % Rec 5.1

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

Parameter

Analyzed

2485241 Units

Mercury, Dissolved

Reporting Limit

% Rec Limits 103

Qualifiers

80-120

2485243 MSD Spike Conc. 5

MS Result 5

5.1

MSD Result

MS % Rec

5.1

103

MSD % Rec 102

% Rec Limits

Max RPD RPD

75-125

Qual

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/03/2019 03:34 PM

without the written consent of Pace Analytical Services, LLC.

Page 11 of 38

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60313971

QC Batch:

608755

Analysis Method:

EPA 6010

QC Batch Method:

EPA 3010

Analysis Description:

6010 MET

Associated Lab Samples: METHOD BLANK:

60313971001, 60313971002

2486762

LABORATORY CONTROL SAMPLE: Parameter Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper Hardness, Total(SM 2340B)

Matrix: Water

60313971001, 60313971002 Units

Blank Result

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

Reporting Limit ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

75.0 15.0 10.0 5.0 1.0 100 5.0 200 5.0 5.0 10.0 705 50.0 10.0 10.0 50.0 5.0 20.0 5.0 15.0 7.0 500 20.0 50.0

Analyzed

Qualifiers

09/12/19 11:47 09/12/19 11:47 09/12/19 11:47 09/12/19 11:47 09/12/19 11:47 09/12/19 11:47 09/12/19 11:47 09/12/19 11:47 09/12/19 11:47 09/12/19 11:47 09/12/19 11:47 09/12/19 11:47 09/12/19 11:47 09/12/19 11:47 09/12/19 11:47 09/12/19 11:47 09/12/19 11:47 09/12/19 11:47 09/12/19 11:47 09/12/19 11:47 09/12/19 11:47 09/12/19 11:47 09/12/19 11:47 09/12/19 11:47

2486763 Units ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

Spike Conc. 10000 1000 1000 1000 1000 1000 1000 10000 1000 1000 1000 66200

LCS Result 10200 1060 986 1030 1030 997 1030 10600 1030 1040 1020 68500

LCS % Rec

% Rec Limits 102 106 99 103 103 100 103 106 103 104 102 104

Qualifiers

80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/03/2019 03:34 PM

without the written consent of Pace Analytical Services, LLC.

Page 12 of 38

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60313971

LABORATORY CONTROL SAMPLE: Parameter

2486763 Spike Conc.

Units

Iron Lead Lithium Magnesium Manganese Molybdenum Nickel Selenium Silver Sodium Thallium Zinc

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

LCS Result

10000 1000 1000 10000 1000 1000 1000 1000 500 10000 1000 1000

10400 1110 1010 10200 1010 1060 1070 1040 511 10400 1070 1030

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

2486764 MS 60313971001 Spike Units Result Conc. ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

369 ND ND 59.1 ND 1370 ND 13300 ND ND ND 50000 536 ND ND 4070 69.6 23.2 ND ND ND 213000 ND 194

10000 1000 1000 1000 1000 1000 1000 10000 1000 1000 1000 66200 10000 1000 1000 10000 1000 1000 1000 1000 500 10000 1000 1000

LCS % Rec

% Rec Limits 104 111 101 102 101 106 107 104 102 104 107 103

Qualifiers

80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120

2486765 MSD Spike Conc. 10000 1000 1000 1000 1000 1000 1000 10000 1000 1000 1000 66200 10000 1000 1000 10000 1000 1000 1000 1000 500 10000 1000 1000

MS Result

MSD Result

10000 973 912 986 937 2170 929 21800 924 930 910 107000 9960 978 919 12700 951 982 949 944 462 206000 903 1120

11100 1070 1020 1090 1030 2420 1030 23900 1030 1020 1020 118000 10900 1070 1010 14100 1060 1080 1040 1040 512 228000 990 1230

MS % Rec 97 97 91 93 94 80 93 85 92 93 90 86 94 98 91 86 88 96 95 94 92 -65 90 92

MSD % Rec 107 107 101 103 103 105 103 106 103 102 101 102 104 107 101 100 99 106 104 104 102 148 99 103

% Rec Limits

Max RPD RPD

75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125

10 10 11 10 10 11 10 9 11 10 11 10 9 9 10 10 11 10 9 10 10 10 9 9

Qual

20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 M1 20 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/03/2019 03:34 PM

without the written consent of Pace Analytical Services, LLC.

Page 13 of 38

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60313971

QC Batch:

609132

Analysis Method:

EPA 6010

QC Batch Method:

EPA 3010

Analysis Description:

6010 MET Dissolved

Associated Lab Samples: METHOD BLANK:

60313971001, 60313971002

2488253

Associated Lab Samples:

Matrix: Water

60313971001, 60313971002

Parameter

Units

Aluminum, Dissolved Antimony, Dissolved Arsenic, Dissolved Barium, Dissolved Beryllium, Dissolved Boron, Dissolved Cadmium, Dissolved Chromium, Dissolved Cobalt, Dissolved Copper, Dissolved Iron, Dissolved Lead, Dissolved Lithium, Dissolved Magnesium, Dissolved Manganese, Dissolved Molybdenum, Dissolved Nickel, Dissolved Selenium, Dissolved Silver, Dissolved Sodium, Dissolved Thallium, Dissolved Zinc, Dissolved

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

Blank Result

Reporting Limit ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

75.0 15.0 10.0 5.0 1.0 100 5.0 5.0 5.0 10.0 50.0 10.0 10.0 50.0 5.0 20.0 5.0 15.0 7.0 500 20.0 50.0

Analyzed

Qualifiers

09/13/19 15:27 09/13/19 15:27 09/13/19 15:27 09/13/19 15:27 09/13/19 15:27 09/13/19 15:27 09/13/19 15:27 09/13/19 15:27 09/13/19 15:27 09/13/19 15:27 09/13/19 15:27 09/13/19 15:27 09/13/19 15:27 09/13/19 15:27 09/13/19 15:27 09/13/19 15:27 09/13/19 15:27 09/13/19 15:27 09/13/19 15:27 09/13/19 15:27 09/13/19 15:27 09/13/19 15:27

2488254 Units ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

Spike Conc. 10000 1000 1000 1000 1000 1000 1000 1000 1000 1000 10000 1000 1000 10000

LCS Result 9860 1020 960 992 981 988 1000 1010 999 1010 9740 1070 966 9940

LCS % Rec

% Rec Limits 99 102 96 99 98 99 100 101 100 101 97 107 97 99

Qualifiers

80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/03/2019 03:34 PM

without the written consent of Pace Analytical Services, LLC.

Page 14 of 38

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60313971

LABORATORY CONTROL SAMPLE:

2488254

Parameter

Units

Manganese, Dissolved Molybdenum, Dissolved Nickel, Dissolved Selenium, Dissolved Silver, Dissolved Sodium, Dissolved Thallium, Dissolved Zinc, Dissolved

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

Spike Conc.

LCS Result

1000 1000 1000 1000 500 10000 1000 1000

990 1020 1030 1000 500 10000 1020 984

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

2488255 MS 60313971001 Spike Units Result Conc. ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

ND ND ND 49.4 ND 1440 ND ND ND ND ND ND 11.4 4060 58.3 23.0 ND ND ND 219000 ND ND

10000 1000 1000 1000 1000 1000 1000 1000 1000 1000 10000 1000 1000 10000 1000 1000 1000 1000 500 10000 1000 1000

LCS % Rec

% Rec Limits 99 102 103 100 100 100 102 98

Qualifiers

80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120

2488256 MSD Spike Conc. 10000 1000 1000 1000 1000 1000 1000 1000 1000 1000 10000 1000 1000 10000 1000 1000 1000 1000 500 10000 1000 1000

MS Result

MSD Result

9640 1020 970 1020 972 2400 987 1000 968 995 9570 1020 960 13400 1030 1040 993 992 494 222000 944 1000

9640 1010 973 1020 970 2380 984 992 961 991 9560 1020 965 13300 1020 1040 989 992 491 220000 936 999

MS % Rec 96 101 97 97 97 96 99 100 97 100 95 102 95 94 97 102 99 99 99 25 94 95

MSD % Rec 96 101 97 97 97 94 98 99 96 99 95 101 95 92 96 101 99 99 98 6 94 95

% Rec Limits

Max RPD RPD

75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125

0 1 0 0 0 1 0 1 1 0 0 0 0 1 1 0 0 0 1 1 1 0

Qual

20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 M1 20 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/03/2019 03:34 PM

without the written consent of Pace Analytical Services, LLC.

Page 15 of 38

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60313971

QC Batch:

608257

Analysis Method:

SM 2540C

QC Batch Method:

SM 2540C

Analysis Description:

2540C Total Dissolved Solids

Associated Lab Samples: METHOD BLANK:

60313971001, 60313971002

2484941

Associated Lab Samples: Parameter

Units

Total Dissolved Solids

Parameter

Reporting Limit ND

5.0

Analyzed

Qualifiers

09/10/19 13:00

2484942 Units

Total Dissolved Solids

Spike Conc.

LCS Result

LCS % Rec

% Rec Limits

mg/L

1000

995

100

80-120

Units

60314117001 Result

Dup Result

RPD

Max RPD

mg/L

11000

Units

60314116001 Result

mg/L

3160

Qualifiers

2484943

Parameter Total Dissolved Solids

SAMPLE DUPLICATE:

Blank Result

mg/L

LABORATORY CONTROL SAMPLE:

SAMPLE DUPLICATE:

Matrix: Water

60313971001, 60313971002

10700

Qualifiers 10

2484944

Parameter Total Dissolved Solids

Dup Result

Max RPD

RPD

3120

Qualifiers 10

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/03/2019 03:34 PM

without the written consent of Pace Analytical Services, LLC.

Page 16 of 38

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60313971

QC Batch:

1345780

Analysis Method:

EPA 9020

QC Batch Method:

9020B

Analysis Description:

Wet Chemistry 9020B

Associated Lab Samples: METHOD BLANK:

60313971001, 60313971002

R3450683-2

Associated Lab Samples: Parameter

mg/L

Blank Result

mg/L

0.100

Analyzed

Qualifiers

09/16/19 10:46

Matrix: Water Blank Result

Units

Total Organic Halides

mg/L

Reporting Limit ND

R3452364-2

0.100

Analyzed

Qualifiers

09/17/19 10:38

Matrix: Water

60313971001, 60313971002

Parameter Total Organic Halides

LABORATORY CONTROL SAMPLE: Parameter Total Organic Halides

LABORATORY CONTROL SAMPLE:

Total Organic Halides

09/14/19 10:40

60313971001, 60313971002

Parameter

Reporting Limit ND

R3451586-2

Associated Lab Samples:

Qualifiers

Matrix: Water

Units

Total Organic Halides

METHOD BLANK:

0.100

Analyzed

60313971001, 60313971002

Parameter

Associated Lab Samples:

Reporting Limit ND

R3451007-2

Associated Lab Samples:

METHOD BLANK:

Blank Result

Units

Total Organic Halides

METHOD BLANK:

Matrix: Water

60313971001, 60313971002

Blank Result

Units mg/L

Reporting Limit ND

0.100

Analyzed

Qualifiers

09/19/19 10:06

R3450683-1 Spike Conc.

Units mg/L

0.200

LCS Result 0.199

LCS % Rec

% Rec Limits

99.3

Qualifiers

85.0-115

R3451007-1 Units mg/L

Spike Conc. 0.200

LCS Result 0.205

LCS % Rec

% Rec Limits 103

Qualifiers

85.0-115

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/03/2019 03:34 PM

without the written consent of Pace Analytical Services, LLC.

Page 17 of 38

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60313971

LABORATORY CONTROL SAMPLE: Parameter

R3451586-1 Spike Conc.

Units

Total Organic Halides

mg/L

LABORATORY CONTROL SAMPLE: Parameter

0.200

0.215

Spike Conc.

mg/L

0.200

Parameter

Units

R3450683-3 MS L1138728-16 Spike Result Conc.

Total Organic Halides

mg/L

0.200

Parameter

Units

R3451007-4 MS L1138728-15 Spike Result Conc.

Total Organic Halides

mg/L

0.200

% Rec Limits 106

Qualifiers

85.0-115

R3450683-4 MSD Spike Conc. 0.200

MS Result

MSD Result

0.208

MS % Rec

0.231

MSD % Rec

104

% Rec Limits

115 80.0-120

Max RPD RPD 10.4

Qual

R3451007-5 MSD Spike Conc. 0.200

MS Result

MSD Result

0.219

MS % Rec

0.225

MSD % Rec

110

% Rec Limits

112 80.0-120

Max RPD RPD 2.41

Qual

R3450683-5

Parameter Total Organic Halides

Units

L1138728-16 Result

mg/L

Units

L1138728-28 Result

mg/L

Units

L1138728-15 Result

mg/L

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

R3450683-6

Parameter Total Organic Halides

SAMPLE DUPLICATE:

Qualifiers

85.0-115

LCS % Rec

0.211

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

SAMPLE DUPLICATE:

% Rec Limits 108

LCS Result

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

SAMPLE DUPLICATE:

LCS % Rec

R3452364-1 Units

Total Organic Halides

LCS Result

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

R3451007-3

Parameter Total Organic Halides

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/03/2019 03:34 PM

without the written consent of Pace Analytical Services, LLC.

Page 18 of 38

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60313971

SAMPLE DUPLICATE:

R3451007-6

Parameter Total Organic Halides

SAMPLE DUPLICATE:

Units

60313971001 Result

mg/L

Units

60313971002 Result

mg/L

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

R3451007-7

Parameter Total Organic Halides

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/03/2019 03:34 PM

without the written consent of Pace Analytical Services, LLC.

Page 19 of 38

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60313971

QC Batch:

609007

Analysis Method:

EPA 300.0

QC Batch Method:

EPA 300.0

Analysis Description:

300.0 IC Anions

Associated Lab Samples: METHOD BLANK:

60313971001, 60313971002

2487719

Associated Lab Samples:

Matrix: Water

60313971001, 60313971002

Parameter

Blank Result

Units

Chloride Fluoride Sulfate

mg/L mg/L mg/L

LABORATORY CONTROL SAMPLE: Parameter

ND ND ND

1.0 0.20 1.0

Spike Conc.

mg/L mg/L mg/L

LCS Result

5 2.5 5

Chloride Fluoride Sulfate

2487721 MS 60313971001 Spike Units Result Conc. mg/L mg/L mg/L

MATRIX SPIKE SAMPLE: Parameter Chloride Fluoride Sulfate

Qualifiers

09/12/19 10:11 09/12/19 10:11 09/12/19 10:11

34.8 1.1 37.8

50 2.5 50

LCS % Rec 5.1 2.6 4.9

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

Parameter

Analyzed

2487720 Units

Chloride Fluoride Sulfate

Reporting Limit

% Rec Limits 101 104 98

Qualifiers

90-110 90-110 90-110

2487722 MSD Spike Conc. 50 2.5 50

MS Result 89.0 3.8 94.0

MSD Result

MS % Rec

92.2 3.8 98.0

MSD % Rec

108 109 112

115 105 120

% Rec Limits

Max RPD RPD

80-120 80-120 80-120

4 2 4

Qual

15 15 15

2487723 Units mg/L mg/L mg/L

60313169007 Result 23.3 1.1 161

Spike Conc.

MS Result

25 2.5 100

MS % Rec 50.0 3.8 265

% Rec Limits 107 106 105

Qualifiers

80-120 80-120 80-120

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/03/2019 03:34 PM

without the written consent of Pace Analytical Services, LLC.

Page 20 of 38

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60313971

QC Batch:

607965

Analysis Method:

EPA 353.2

QC Batch Method:

EPA 353.2

Analysis Description:

353.2 Nitrate + Nitrite, Unpres.

Associated Lab Samples: METHOD BLANK:

60313971001, 60313971002

2483946

Associated Lab Samples:

Matrix: Water

60313971001, 60313971002

Parameter

Units

Nitrogen, Nitrate Nitrogen, Nitrite Nitrogen, NO2 plus NO3

mg/L mg/L mg/L

LABORATORY CONTROL SAMPLE:

Units

Nitrogen, Nitrate Nitrogen, Nitrite Nitrogen, NO2 plus NO3

mg/L mg/L mg/L

ND ND ND

0.10 0.10 0.10

Analyzed

Qualifiers

09/07/19 10:27 09/07/19 10:27 09/07/19 10:27

Spike Conc.

LCS Result

LCS % Rec

% Rec Limits

Qualifiers

1 1 2

0.99 1.0 2.0

99 103 101

70-130 90-110 90-110

60313971001 Result

Spike Conc.

MS Result

MS % Rec

2483948

Parameter

Units

Nitrogen, Nitrate Nitrogen, Nitrite Nitrogen, NO2 plus NO3

mg/L mg/L mg/L

SAMPLE DUPLICATE:

Reporting Limit

2483947

Parameter

MATRIX SPIKE SAMPLE:

Blank Result

ND ND ND

1 1 2

1.0 1.1 2.1

% Rec Limits 103 110 105

Qualifiers

70-130 90-110 90-110

2483949

Parameter Nitrogen, Nitrate Nitrogen, Nitrite Nitrogen, NO2 plus NO3

Units

60313971002 Result

mg/L mg/L mg/L

ND ND ND

Dup Result

RPD ND ND ND

Max RPD

Qualifiers 20 20 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/03/2019 03:34 PM

without the written consent of Pace Analytical Services, LLC.

Page 21 of 38

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60313971

QC Batch:

609166

Analysis Method:

EPA 410.4

QC Batch Method:

EPA 410.4

Analysis Description:

410.4 Water Analysis

Associated Lab Samples: METHOD BLANK:

60313971001, 60313971002

2488385

Associated Lab Samples: Parameter

Units

Chemical Oxygen Demand

LABORATORY CONTROL SAMPLE: Parameter

MATRIX SPIKE SAMPLE: Parameter

mg/L

10.0

Analyzed

Qualifiers

09/16/19 08:27

Spike Conc.

LCS Result

LCS % Rec

% Rec Limits

Qualifiers

53.1

106

90-110

60313677001 Result

Spike Conc.

MS Result

MS % Rec

2488387

mg/L

36.8

% Rec Limits

85.6

Qualifiers

90-110

2488389 Units

Chemical Oxygen Demand

Reporting Limit

2488386

Units

Chemical Oxygen Demand

Blank Result

mg/L

Units

Chemical Oxygen Demand

SAMPLE DUPLICATE:

Matrix: Water

60313971001, 60313971002

mg/L

60313983001 Result 25.1

Spike Conc.

MS Result

MS % Rec 75.3

% Rec Limits 100

Qualifiers

90-110

2488388

Parameter Chemical Oxygen Demand

Units

60313683001 Result

mg/L

2330

Dup Result

Max RPD

RPD

2220

Qualifiers 25

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/03/2019 03:34 PM

without the written consent of Pace Analytical Services, LLC.

Page 22 of 38

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60313971

QC Batch:

609713

Analysis Method:

SM 5310C

QC Batch Method:

SM 5310C

Analysis Description:

5310C Total Organic Carbon

Associated Lab Samples: METHOD BLANK:

60313971001, 60313971002

2490860

Associated Lab Samples: Parameter

Units

Total Organic Carbon

Blank Result

mg/L

LABORATORY CONTROL SAMPLE: Parameter

Reporting Limit ND

1.0

Analyzed

Qualifiers

09/17/19 15:08

2490861 Units

Total Organic Carbon

SAMPLE DUPLICATE:

Matrix: Water

60313971001, 60313971002

mg/L

Spike Conc.

LCS Result 5

LCS % Rec

% Rec Limits

5.2

104

80-120

Dup Result

RPD

Max RPD

Qualifiers

2490863

Parameter Total Organic Carbon

Units

60313971001 Result

mg/L

2.7

2.6

Qualifiers 25

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/03/2019 03:34 PM

without the written consent of Pace Analytical Services, LLC.

Page 23 of 38

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60313971

QC Batch:

607673

Analysis Method:

EPA 7196

QC Batch Method:

EPA 7196

Analysis Description:

7196 Chromium, Hexavalent

Associated Lab Samples: METHOD BLANK:

60313971001, 60313971002

2482977

Associated Lab Samples: Parameter

Units

Chromium, Hexavalent

Blank Result

mg/L

LABORATORY CONTROL SAMPLE: Parameter

mg/L

MATRIX SPIKE SAMPLE: Parameter

0.010

Analyzed

Qualifiers

09/05/19 18:14

Spike Conc.

LCS Result

LCS % Rec

% Rec Limits

0.1

0.10

101

90-110

60313971001 Result

Spike Conc.

MS Result

MS % Rec

Qualifiers

2482979 Units

Chromium, Hexavalent

Reporting Limit

2482978 Units

Chromium, Hexavalent

SAMPLE DUPLICATE:

Matrix: Water

60313971001, 60313971002

mg/L

0.1

0.024

% Rec Limits 24

Qualifiers

85-115 M1

2482980

Parameter Chromium, Hexavalent

Units

60313971001 Result

mg/L

Dup Result

RPD ND

Max RPD

Qualifiers 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/03/2019 03:34 PM

without the written consent of Pace Analytical Services, LLC.

Page 24 of 38

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60313971

QC Batch:

607674

Analysis Method:

EPA 7196

QC Batch Method:

EPA 7196

Analysis Description:

7196 Chromium, Hexavalent Diss

Associated Lab Samples: METHOD BLANK:

60313971001, 60313971002

2482983

Associated Lab Samples: Parameter

Units

Chromium, Hexavalent,Dissolved

LABORATORY CONTROL SAMPLE: Parameter

MATRIX SPIKE SAMPLE: Parameter

Reporting Limit ND

0.010

Analyzed

Qualifiers

09/05/19 18:19

2482984

mg/L

Spike Conc.

LCS Result

LCS % Rec

% Rec Limits

0.1

0.10

101

90-110

60313971001 Result

Spike Conc.

MS Result

MS % Rec

Qualifiers

2482985 Units

Chromium, Hexavalent,Dissolved

Blank Result

mg/L

Units

Chromium, Hexavalent,Dissolved

SAMPLE DUPLICATE:

Matrix: Water

60313971001, 60313971002

mg/L

0.1

0.010

% Rec Limits 8

Qualifiers

85-115 M1

2482986

Parameter Chromium, Hexavalent,Dissolved

Units

60313971001 Result

mg/L

Dup Result

RPD ND

Max RPD

Qualifiers 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/03/2019 03:34 PM

without the written consent of Pace Analytical Services, LLC.

Page 25 of 38

#=ARR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS - RADIOCHEMISTRY Project:

IPL INDEPENDENCE

Pace Project No.:

60313971

Sample: TW-2 PWS: Parameters

Lab ID: 60313971001 Site ID: Method

Radium-226

EPA 903.1

Radium-228

EPA 904.0

Collected: 09/05/19 11:30 Sample Type:

Received: 09/05/19 13:25

Act ± Unc (MDC) Carr Trac 0.976 ± 0.732 (0.378) C:NA T:87% 0.732 ± 0.553 (1.10) C:70% T:89%

Units

Analyzed

Matrix: Water

CAS No.

Qual

pCi/L

09/27/19 14:48 13982-63-3

pCi/L

10/01/19 10:57 15262-20-1

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 26 of 38

#=ARR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS - RADIOCHEMISTRY Project:

IPL INDEPENDENCE

Pace Project No.:

60313971

Sample: TW-5 PWS: Parameters

Lab ID: 60313971002 Site ID: Method

Radium-226

EPA 903.1

Radium-228

EPA 904.0

Collected: 09/05/19 11:45 Sample Type:

Received: 09/05/19 13:25

Act ± Unc (MDC) Carr Trac 2.20 ± 1.05 (0.331) C:NA T:92% -0.0805 ± 0.490 (1.15) C:75% T:80%

Units

Analyzed

Matrix: Water

CAS No.

Qual

pCi/L

09/27/19 14:48 13982-63-3

pCi/L

10/01/19 10:57 15262-20-1

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 27 of 38

#=QCR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL - RADIOCHEMISTRY Project:

IPL INDEPENDENCE

Pace Project No.:

60313971

QC Batch:

361823

Analysis Method:

EPA 904.0

QC Batch Method:

EPA 904.0

Analysis Description:

904.0 Radium 228

Associated Lab Samples: METHOD BLANK:

1755602

Associated Lab Samples: Parameter Radium-228

60313971001, 60313971002 Matrix: Water

60313971001, 60313971002 Act ± Unc (MDC) Carr Trac

Units

Analyzed

-0.402 ± 0.291 (0.784) C:66% T:81%

pCi/L

10/01/19 10:59

Qualifiers

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 28 of 38

#=QCR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL - RADIOCHEMISTRY Project:

IPL INDEPENDENCE

Pace Project No.:

60313971

QC Batch:

361821

Analysis Method:

EPA 903.1

QC Batch Method:

EPA 903.1

Analysis Description:

903.1 Radium-226

Associated Lab Samples: METHOD BLANK:

1755601

Associated Lab Samples: Parameter Radium-226

60313971001, 60313971002 Matrix: Water

60313971001, 60313971002 Act ± Unc (MDC) Carr Trac

Units

Analyzed

0.0672 ± 0.314 (0.563) C:NA T:94%

pCi/L

09/27/19 14:48

Qualifiers

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 29 of 38

#=QL#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALIFIERS Project:

IPL INDEPENDENCE

Pace Project No.:

60313971

DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Act - Activity Unc - Uncertainty: SDWA = 1.96 sigma count uncertainty, all other matrices = Expanded Uncertainty (95% confidence interval). Gamma Spec = Expanded Uncertainty (95.4% Confidence Interval) (MDC) - Minimum Detectable Concentration Trac - Tracer Recovery (%) Carr - Carrier Recovery (%) Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. LABORATORIES PAN

Pace Analytical National

PASI-K

Pace Analytical Services - Kansas City

PASI-PA

Pace Analytical Services - Greensburg

ANALYTE QUALIFIERS D9

Dissolved result is greater than the total. Data is within laboratory control limits.

Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.

Sample field preservation does not meet EPA or method recommendations for this analysis.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/03/2019 03:34 PM

without the written consent of Pace Analytical Services, LLC.

Page 30 of 38

#=CR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA CROSS REFERENCE TABLE Project:

IPL INDEPENDENCE

Pace Project No.:

60313971

Lab ID

Sample ID

QC Batch Method

QC Batch

Analytical Method

Analytical Batch

60313971001 60313971002

TW-2 TW-5

EPA 3010 EPA 3010

608755 608755

EPA 6010 EPA 6010

608793 608793

60313971001 60313971002

TW-2 TW-5

EPA 3010 EPA 3010

609132 609132

EPA 6010 EPA 6010

609322 609322

60313971001 60313971002

TW-2 TW-5

EPA 7470 EPA 7470

608347 608347

EPA 7470 EPA 7470

608393 608393

60313971001 60313971002

TW-2 TW-5

EPA 7470 EPA 7470

608346 608346

EPA 7470 EPA 7470

608392 608392

60313971001 60313971002

TW-2 TW-5

EPA 903.1 EPA 903.1

361821 361821

60313971001 60313971002

TW-2 TW-5

EPA 904.0 EPA 904.0

361823 361823

60313971001 60313971002

TW-2 TW-5

SM 2540C SM 2540C

608257 608257

60313971001

TW-2

610562

60313971002

TW-5

Trivalent Chromium Calculation Trivalent Chromium Calculation

60313971001

TW-2

610563

60313971002

TW-5

Dissolved Trivalent Cr Calc. Dissolved Trivalent Cr Calc.

60313971001 60313971002

TW-2 TW-5

9020B 9020B

1345780 1345780

EPA 9020 EPA 9020

1345780 1345780

60313971001 60313971002

TW-2 TW-5

EPA 300.0 EPA 300.0

609007 609007

60313971001 60313971002

TW-2 TW-5

EPA 353.2 EPA 353.2

607965 607965

60313971001 60313971002

TW-2 TW-5

EPA 410.4 EPA 410.4

609166 609166

EPA 410.4 EPA 410.4

609620 609620

60313971001 60313971002

TW-2 TW-5

SM 5310C SM 5310C

609713 609713

60313971001 60313971002

TW-2 TW-5

EPA 7196 EPA 7196

607673 607673

60313971001 60313971002

TW-2 TW-5

EPA 7196 EPA 7196

607674 607674

610562

610563

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/03/2019 03:34 PM

without the written consent of Pace Analytical Services, LLC.

Page 31 of 38

Page 32 of 38

Page 33 of 38

Page 34 of 38

Page 35 of 38

Page 36 of 38

Page 37 of 38

Page 38 of 38

#=CL#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

LIMS USE: FR - ANDREA COLLIER LIMS OBJECT ID: 60315028

October 16, 2019

Andrea Collier Barr Engineering 1001 Diamond Ridge, Ste 1100 Jefferson City, MO 65109

RE: Project: IPL INDEPENDENCE Pace Project No.: 60315028 Dear Andrea Collier: Enclosed are the analytical results for sample(s) received by the laboratory on September 16, 2019. The results relate only to the samples included in this report. Results reported herein conform to the most current, applicable TNI/NELAC standards and the laboratory's Quality Assurance Manual, where applicable, unless otherwise noted in the body of the report. If you have any questions concerning this report, please feel free to contact me. Sincerely,

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 1 of 36

#=CP#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

CERTIFICATIONS Project:

IPL INDEPENDENCE

Pace Project No.:

60315028

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 2 of 36

#=CP#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

CERTIFICATIONS Project:

IPL INDEPENDENCE

Pace Project No.:

60315028

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 3 of 36

#=SS#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

SAMPLE SUMMARY Project:

IPL INDEPENDENCE

Pace Project No.:

60315028

Lab ID

Sample ID

Matrix

Date Collected

Date Received

60315028001

TW-6

Water

09/16/19 09:30

09/16/19 15:00

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 4 of 36

#=SA#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

SAMPLE ANALYTE COUNT Project:

IPL INDEPENDENCE

Pace Project No.:

60315028 Analytes Reported

Lab ID

Sample ID

Method

Analysts

60315028001

TW-6

EPA 6010

JDE

PASI-K

EPA 6010

LRS

PASI-K

EPA 7470

HKC

PASI-K

EPA 7470

HKC

PASI-K

EPA 903.1

MK1

PASI-PA

EPA 904.0

VAL

PASI-PA

SM 2540C

BLA

PASI-K

EPA 410.4

MJA

PAN

SM 5310B

VRP

PAN

Laboratory

SM 5310B

VRP

PAN

Trivalent Chromium Calculation

JMC1

PASI-K

EPA 300.0

MGS, MJK

PASI-K

EPA 353.2

AJS

PASI-K

EPA 7196

MAP

PASI-K

EPA 7196

MAP

PASI-K

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 5 of 36

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL INDEPENDENCE

Pace Project No.:

60315028

Sample: TW-6 Parameters 6010 MET ICP Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper Iron Lead Lithium Magnesium Manganese Molybdenum Nickel Selenium Silver Sodium Thallium Hardness, Total(SM 2340B) Zinc 6010 MET ICP, Dissolved Aluminum, Dissolved Antimony, Dissolved Arsenic, Dissolved Barium, Dissolved Beryllium, Dissolved Boron, Dissolved Cadmium, Dissolved Chromium, Dissolved Cobalt, Dissolved Copper, Dissolved Iron, Dissolved Lead, Dissolved Lithium, Dissolved Magnesium, Dissolved Manganese, Dissolved Molybdenum, Dissolved Nickel, Dissolved Selenium, Dissolved Silver, Dissolved Sodium, Dissolved Thallium, Dissolved

Lab ID: 60315028001 Results

Units

Collected: 09/16/19 09:30 Report Limit

Received: 09/16/19 15:00

Prepared

Matrix: Water

Analyzed

CAS No.

09/26/19 16:45 09/26/19 16:45 09/26/19 16:45 09/26/19 16:45 09/26/19 16:45 09/26/19 16:45 09/26/19 16:45 09/26/19 16:45 09/26/19 16:45 09/26/19 16:45 09/26/19 16:45 09/26/19 16:45 09/26/19 16:45 09/26/19 16:45 09/26/19 16:45 09/26/19 16:45 09/26/19 16:45 09/26/19 16:45 09/26/19 16:45 09/26/19 16:45 09/26/19 16:45 09/26/19 16:45 09/26/19 16:45 09/26/19 16:45

09/27/19 11:45 09/27/19 11:45 09/27/19 11:45 09/27/19 11:45 09/27/19 11:45 09/27/19 11:45 09/27/19 11:45 09/27/19 11:45 09/27/19 11:45 09/27/19 11:45 09/27/19 11:45 09/27/19 11:45 09/27/19 11:45 09/27/19 11:45 09/27/19 11:45 09/27/19 11:45 09/27/19 11:45 09/27/19 11:45 09/27/19 11:45 09/27/19 11:45 09/27/19 11:45

Qual

Analytical Method: EPA 6010 Preparation Method: EPA 3010 2100 ND ND 41.8 ND 637 ND 36300 8.6 ND ND 7040 ND 128 13600 336 49.6 6.7 ND ND 151000 ND 147000 ND

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

75.0 15.0 10.0 5.0 1.0 100 5.0 200 5.0 5.0 10.0 50.0 10.0 10.0 50.0 5.0 20.0 5.0 15.0 7.0 500 20.0 705 50.0

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

09/26/19 10:30 09/26/19 10:30 09/26/19 10:30 09/26/19 10:30 09/26/19 10:30 09/26/19 10:30 09/26/19 10:30 09/26/19 10:30 09/26/19 10:30 09/26/19 10:30 09/26/19 10:30 09/26/19 10:30 09/26/19 10:30 09/26/19 10:30 09/26/19 10:30 09/26/19 10:30 09/26/19 10:30 09/26/19 10:30 09/26/19 10:30 09/26/19 10:30 09/26/19 10:30 09/26/19 10:30 09/26/19 10:30 09/26/19 10:30

7440-66-6

Analytical Method: EPA 6010 Preparation Method: EPA 3010 131 ND ND 28.5 ND 641 ND ND ND ND 68.0 ND 130 12300 ND 50.5 ND ND ND 150000 ND

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

75.0 15.0 10.0 5.0 1.0 100 5.0 5.0 5.0 10.0 50.0 10.0 10.0 50.0 5.0 20.0 5.0 15.0 7.0 500 20.0

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

09/26/19 12:06 09/26/19 12:06 09/26/19 12:06 09/26/19 12:06 09/26/19 12:06 09/26/19 12:06 09/26/19 12:06 09/26/19 12:06 09/26/19 12:06 09/26/19 12:06 09/26/19 12:06 09/26/19 12:06 09/26/19 12:06 09/26/19 12:06 09/26/19 12:06 09/26/19 12:06 09/26/19 12:06 09/26/19 12:06 09/26/19 12:06 09/26/19 12:06 09/26/19 12:06

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/16/2019 05:03 PM

without the written consent of Pace Analytical Services, LLC.

Page 6 of 36

#=AR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS Project:

IPL INDEPENDENCE

Pace Project No.:

60315028

Sample: TW-6 Parameters 6010 MET ICP, Dissolved Zinc, Dissolved 7470 Mercury Mercury 7470 Mercury, Dissolved Mercury, Dissolved 2540C Total Dissolved Solids Total Dissolved Solids Wet Chemistry 410.4 Chemical Oxygen Demand Wet Chemistry 5310 B-2011 Total Organic Carbon Wet Chemistry 5320 B-2010 Total Organic Halides Trivalent Chromium Calculation Chromium, Trivalent 300.0 IC Anions 28 Days Chloride Fluoride Sulfate 353.2 Nitrogen, NO2/NO3 unpres Nitrogen, NO2 plus NO3 Nitrogen, Nitrate Nitrogen, Nitrite 7196 Chromium, Hexavalent Chromium, Hexavalent 7196 Chromium, Hexavalent Diss Chromium, Hexavalent,Dissolved

Lab ID: 60315028001 Results

Collected: 09/16/19 09:30

Units

Report Limit

Received: 09/16/19 15:00

Prepared

Matrix: Water

Analyzed

CAS No.

Qual

Analytical Method: EPA 6010 Preparation Method: EPA 3010 ND

ug/L

50.0

09/26/19 12:06 09/27/19 11:45 7440-66-6

Analytical Method: EPA 7470 Preparation Method: EPA 7470 ND

ug/L

0.20

09/19/19 13:23 09/20/19 13:47 7439-97-6

Analytical Method: EPA 7470 Preparation Method: EPA 7470 ND

ug/L

0.20

10.0

09/20/19 10:08 09/20/19 14:28 7439-97-6

Analytical Method: SM 2540C 594

mg/L

09/19/19 16:23

Analytical Method: EPA 410.4 Preparation Method: 410.1 31.4

mg/L

10.0

09/25/19 11:00 09/25/19 16:21

Analytical Method: SM 5310B Preparation Method: 5310 B-2011 2.01

mg/L

1.00

09/20/19 16:44 09/20/19 16:44 7440-44-0

Analytical Method: SM 5310B Preparation Method: 5320 B-2010 ND

mg/L

0.100

09/21/19 13:52 09/21/19 13:52

Analytical Method: Trivalent Chromium Calculation ND

mg/L

0.010

09/30/19 15:24 16065-83-1

10.0 0.20 2.0

10 1 2

09/25/19 22:55 16887-00-6 09/25/19 22:39 16984-48-8 09/26/19 17:54 14808-79-8

0.10 0.10 0.10

1 1 1

09/18/19 09:03 09/18/19 09:03 14797-55-8 09/18/19 09:03 14797-65-0

0.010

09/16/19 17:29 18540-29-9

0.010

09/16/19 17:31 18540-29-9

Analytical Method: EPA 300.0 123 0.30 18.8

mg/L mg/L mg/L

Analytical Method: EPA 353.2 ND ND ND

mg/L mg/L mg/L

Analytical Method: EPA 7196 ND

mg/L

Analytical Method: EPA 7196 ND

mg/L

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/16/2019 05:03 PM

without the written consent of Pace Analytical Services, LLC.

Page 7 of 36

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60315028

QC Batch:

610447

Analysis Method:

EPA 7470

QC Batch Method:

EPA 7470

Analysis Description:

7470 Mercury

Associated Lab Samples: METHOD BLANK:

60315028001

2493639

Associated Lab Samples:

Matrix: Water

60315028001

Parameter

Blank Result

Units

Mercury

ug/L

LABORATORY CONTROL SAMPLE: Parameter

0.20

Spike Conc.

ug/L

LCS Result 5

Mercury

2493641 MS 60315063001 Spike Units Result Conc. ug/L

Qualifiers

09/20/19 13:18

LCS % Rec 5.2

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

Parameter

Analyzed

2493640 Units

Mercury

Reporting Limit

% Rec Limits 103

Qualifiers

80-120

2493642 MSD Spike Conc. 5

MS Result 5

5.1

MSD Result

MS % Rec

5.1

103

MSD % Rec 102

% Rec Limits

Max RPD RPD

75-125

Qual

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/16/2019 05:03 PM

without the written consent of Pace Analytical Services, LLC.

Page 8 of 36

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60315028

QC Batch:

610659

Analysis Method:

EPA 7470

QC Batch Method:

EPA 7470

Analysis Description:

7470 Mercury ,Dissolved

Associated Lab Samples: METHOD BLANK:

60315028001

2494484

Associated Lab Samples:

Matrix: Water

60315028001

Parameter

Blank Result

Units

Mercury, Dissolved

ug/L

LABORATORY CONTROL SAMPLE: Parameter

0.20

Spike Conc.

ug/L

LCS Result 5

Mercury, Dissolved

2494486 MS 60315028001 Spike Units Result Conc. ug/L

Qualifiers

09/20/19 14:23

LCS % Rec 5.2

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

Parameter

Analyzed

2494485 Units

Mercury, Dissolved

Reporting Limit

% Rec Limits 103

Qualifiers

80-120

2494487 MSD Spike Conc. 5

MS Result 5

5.0

MSD Result

MS % Rec

4.8

MSD % Rec 97

% Rec Limits

Max RPD RPD

75-125

Qual

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/16/2019 05:03 PM

without the written consent of Pace Analytical Services, LLC.

Page 9 of 36

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60315028

QC Batch:

611805

Analysis Method:

EPA 6010

QC Batch Method:

EPA 3010

Analysis Description:

6010 MET

Associated Lab Samples: METHOD BLANK:

60315028001

2499008

LABORATORY CONTROL SAMPLE: Parameter Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper Hardness, Total(SM 2340B)

Matrix: Water

60315028001 Units

Blank Result

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

Reporting Limit ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

75.0 15.0 10.0 5.0 1.0 100 5.0 200 5.0 5.0 10.0 705 50.0 10.0 10.0 50.0 5.0 20.0 5.0 15.0 7.0 500 20.0 50.0

Analyzed

Qualifiers

09/26/19 16:41 09/26/19 16:41 09/26/19 16:41 09/26/19 16:41 09/26/19 16:41 09/26/19 16:41 09/26/19 16:41 09/26/19 16:41 09/26/19 16:41 09/26/19 16:41 09/26/19 16:41 09/26/19 16:41 09/26/19 16:41 09/26/19 16:41 09/26/19 16:41 09/26/19 16:41 09/26/19 16:41 09/26/19 16:41 09/26/19 16:41 09/26/19 16:41 09/26/19 16:41 09/26/19 16:41 09/26/19 16:41 09/26/19 16:41

2499009 Units ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

Spike Conc. 10000 1000 1000 1000 1000 1000 1000 10000 1000 1000 1000 66200

LCS Result 9970 989 961 988 1000 982 1010 9980 982 978 1000 65800

LCS % Rec

% Rec Limits 100 99 96 99 100 98 101 100 98 98 100 99

Qualifiers

80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/16/2019 05:03 PM

without the written consent of Pace Analytical Services, LLC.

Page 10 of 36

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60315028

LABORATORY CONTROL SAMPLE: Parameter

2499009 Spike Conc.

Units

Iron Lead Lithium Magnesium Manganese Molybdenum Nickel Selenium Silver Sodium Thallium Zinc

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

LCS Result

10000 1000 1000 10000 1000 1000 1000 1000 500 10000 1000 1000

9960 1060 989 9920 1010 998 1000 1020 494 10200 1050 982

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

2499010 MS 60315028001 Spike Units Result Conc. ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

2100 ND ND 41.8 ND 637 ND 36300 8.6 ND ND 147000 7040 ND 128 13600 336 49.6 6.7 ND ND 151000 ND ND

10000 1000 1000 1000 1000 1000 1000 10000 1000 1000 1000 66200 10000 1000 1000 10000 1000 1000 1000 1000 500 10000 1000 1000

LCS % Rec

% Rec Limits 100 106 99 99 101 100 100 102 99 102 105 98

Qualifiers

80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120

2499011 MSD Spike Conc. 10000 1000 1000 1000 1000 1000 1000 10000 1000 1000 1000 66200 10000 1000 1000 10000 1000 1000 1000 1000 500 10000 1000 1000

MS Result

MSD Result

12500 972 974 1010 986 1660 992 46200 988 938 990 212000 16800 1010 1100 23500 1340 1040 968 996 489 161000 948 990

12600 973 980 1010 992 1650 991 46100 987 938 986 212000 16800 1010 1100 23500 1330 1040 968 993 488 161000 952 989

MS % Rec 104 97 97 97 99 103 99 98 98 94 99 99 98 100 97 99 100 99 96 100 98 101 95 96

MSD % Rec 105 97 97 97 99 101 99 98 98 94 98 99 98 100 98 99 100 99 96 99 97 104 95 96

% Rec Limits

Max RPD RPD

75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125

1 0 1 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Qual

20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/16/2019 05:03 PM

without the written consent of Pace Analytical Services, LLC.

Page 11 of 36

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60315028

QC Batch:

611809

Analysis Method:

EPA 6010

QC Batch Method:

EPA 3010

Analysis Description:

6010 MET Dissolved

Associated Lab Samples: METHOD BLANK:

60315028001

2499031

Associated Lab Samples:

Matrix: Water

60315028001

Parameter

Units

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

Blank Result

Reporting Limit ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

75.0 15.0 10.0 5.0 1.0 100 5.0 5.0 5.0 10.0 50.0 10.0 10.0 50.0 5.0 20.0 5.0 15.0 7.0 500 20.0 50.0

Analyzed

Qualifiers

09/27/19 11:42 09/27/19 11:42 09/27/19 11:42 09/27/19 11:42 09/27/19 11:42 09/27/19 11:42 09/27/19 11:42 09/27/19 11:42 09/27/19 11:42 09/27/19 11:42 09/27/19 11:42 09/27/19 11:42 09/27/19 11:42 09/27/19 11:42 09/27/19 11:42 09/27/19 11:42 09/27/19 11:42 09/27/19 11:42 09/27/19 11:42 09/27/19 11:42 09/27/19 11:42 09/27/19 11:42

2499032 Units ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

Spike Conc. 10000 1000 1000 1000 1000 1000 1000 1000 1000 1000 10000 1000 1000 10000

LCS Result 10300 1030 978 996 1000 979 1030 964 1030 1020 10700 1070 1020 10100

LCS % Rec

% Rec Limits 103 103 98 100 100 98 103 96 103 102 107 107 102 101

Qualifiers

80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/16/2019 05:03 PM

without the written consent of Pace Analytical Services, LLC.

Page 12 of 36

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60315028

LABORATORY CONTROL SAMPLE:

2499032

Parameter

Units

Manganese, Dissolved Molybdenum, Dissolved Nickel, Dissolved Selenium, Dissolved Silver, Dissolved Sodium, Dissolved Thallium, Dissolved Zinc, Dissolved

ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

Spike Conc.

LCS Result

1000 1000 1000 1000 500 10000 1000 1000

981 1040 1070 1060 519 10200 1110 1050

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

2499033 MS 60315028001 Spike Units Result Conc. ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L

131 ND ND 28.5 ND 641 ND ND ND ND 68.0 ND 130 12300 ND 50.5 ND ND ND 150000 ND ND

10000 1000 1000 1000 1000 1000 1000 1000 1000 1000 10000 1000 1000 10000 1000 1000 1000 1000 500 10000 1000 1000

LCS % Rec

% Rec Limits 98 104 107 106 104 102 111 105

Qualifiers

80-120 80-120 80-120 80-120 80-120 80-120 80-120 80-120

2499034 MSD Spike Conc. 10000 1000 1000 1000 1000 1000 1000 1000 1000 1000 10000 1000 1000 10000 1000 1000 1000 1000 500 10000 1000 1000

MS Result

MSD Result

10000 1020 986 1000 987 1630 1010 951 993 992 10400 1020 1120 22000 959 1080 1030 1040 507 160000 1020 1050

10100 1000 975 1010 989 1610 1000 938 986 976 10500 1010 1120 21700 942 1080 1020 1030 500 160000 1010 1040

MS % Rec 99 101 99 98 99 99 101 95 99 99 104 102 99 97 96 103 103 104 101 96 101 105

MSD % Rec 99 100 98 98 99 97 100 94 99 97 104 101 99 94 94 103 102 103 100 98 100 104

% Rec Limits

Max RPD RPD

75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125 75-125

0 1 1 0 0 1 1 1 1 2 0 1 0 1 2 0 1 1 2 0 1 1

Qual

20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/16/2019 05:03 PM

without the written consent of Pace Analytical Services, LLC.

Page 13 of 36

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60315028

QC Batch:

1351436

Analysis Method:

EPA 410.4

QC Batch Method:

410.1

Analysis Description:

Wet Chemistry 410.4

Associated Lab Samples: METHOD BLANK:

60315028001

R3454522-1

Associated Lab Samples:

Matrix: Water

60315028001

Parameter

Blank Result

Units

Chemical Oxygen Demand

mg/L

LABORATORY CONTROL SAMPLE: Parameter

10.0

Spike Conc.

mg/L

LCS Result

222

Parameter

Units

R3454522-4 MS L1142408-01 Spike Result Conc.

Chemical Oxygen Demand

mg/L

LCS % Rec

% Rec Limits

97.2

Qualifiers

90.0-110

R3454522-5 MSD Spike Conc.

400

MS Result 416

MSD Result

MS % Rec

408

MSD % Rec

104

% Rec Limits

102 80.0-120

Max RPD RPD 1.73

Qual

R3454522-3

Parameter Chemical Oxygen Demand

SAMPLE DUPLICATE:

Qualifiers

09/25/19 16:21

216

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

SAMPLE DUPLICATE:

Analyzed

R3454522-2 Units

Chemical Oxygen Demand

Reporting Limit

Units

60315028001 Result

mg/L

31.4

Units

L1142488-01 Result

mg/L

15.1

Dup Result

Max RPD

RPD 31.4

0.255

Qualifiers 20

R3454522-6

Parameter Chemical Oxygen Demand

Dup Result

Max RPD

RPD 16.1

6.45

Qualifiers 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/16/2019 05:03 PM

without the written consent of Pace Analytical Services, LLC.

Page 14 of 36

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60315028

QC Batch:

1349346

Analysis Method:

SM 5310B

QC Batch Method:

5310 B-2011

Analysis Description:

Wet Chemistry 5310 B-2011

Associated Lab Samples: METHOD BLANK:

60315028001

R3453116-1

Associated Lab Samples:

Matrix: Water

60315028001

Parameter

Blank Result

Units

Total Organic Carbon

mg/L

LABORATORY CONTROL SAMPLE: Parameter

1.00

Spike Conc.

mg/L

LCS Result

75.0

R3453116-4 MS 60315028001 Spike Units Result Conc.

Total Organic Carbon

mg/L

2.01

50.0

Parameter

Units

R3453116-6 MS L1141292-03 Spike Result Conc.

Total Organic Carbon

mg/L

0.345

% Rec Limits 105

Qualifiers

85.0-115

50.0

MS Result

MSD Result

58.6

MS % Rec

58.4

MSD % Rec

113

% Rec Limits

Max RPD RPD

113 80.0-120 0.308

Qual

R3453116-7 MSD Spike Conc. 50.0

MS Result

MSD Result

53.2

MS % Rec

54.6

MSD % Rec

106

% Rec Limits

108 80.0-120

Max RPD RPD 2.60

Qual

R3453116-3

Parameter Total Organic Carbon

SAMPLE DUPLICATE:

50.0

LCS % Rec

R3453116-5 MSD Spike Conc.

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

SAMPLE DUPLICATE:

Qualifiers

09/20/19 10:42

78.7

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

Parameter

Analyzed

R3453116-2 Units

Total Organic Carbon

Reporting Limit

Units

L1140935-01 Result

mg/L

14.3

Units

L1141292-06 Result

mg/L

0.262

Dup Result

Max RPD

RPD 14.4

0.769

Qualifiers 20

R3453116-8

Parameter Total Organic Carbon

Dup Result

Max RPD

RPD ND

17.1

Qualifiers 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/16/2019 05:03 PM

without the written consent of Pace Analytical Services, LLC.

Page 15 of 36

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60315028

QC Batch:

1349618

Analysis Method:

SM 5310B

QC Batch Method:

5320 B-2010

Analysis Description:

Wet Chemistry 5320 B-2010

Associated Lab Samples: METHOD BLANK:

60315028001

R3453192-2

Associated Lab Samples:

Matrix: Water

60315028001

Parameter Total Organic Halides

METHOD BLANK:

Blank Result

Units mg/L

R3454099-2

Associated Lab Samples:

Reporting Limit 0.100

Qualifiers

09/21/19 13:08

Matrix: Water

60315028001

Parameter

Blank Result

Units

Total Organic Halides

mg/L

LABORATORY CONTROL SAMPLE: Parameter

Parameter

Spike Conc.

LCS Result

0.200

Qualifiers

09/24/19 13:02

LCS % Rec

0.181

% Rec Limits

90.4

Qualifiers

85.0-115

R3454099-1 Spike Conc.

Units

Total Organic Halides

0.100

Analyzed

R3453192-1

mg/L

LABORATORY CONTROL SAMPLE:

Reporting Limit ND

Units

Total Organic Halides

mg/L

LCS Result

0.200

Parameter

Units

R3453192-5 MS L1141439-01 Spike Result Conc.

Total Organic Halides

mg/L

0.200

LCS % Rec

0.213

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

SAMPLE DUPLICATE:

Analyzed

% Rec Limits 107

Qualifiers

85.0-115

R3453192-6 MSD Spike Conc. 0.200

MS Result

MSD Result

0.232

MS % Rec

0.217

MSD % Rec

116

% Rec Limits

109 80.0-120

Max RPD RPD 6.45

Qual

R3453192-3

Parameter Total Organic Halides

Units

60315028001 Result

mg/L

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/16/2019 05:03 PM

without the written consent of Pace Analytical Services, LLC.

Page 16 of 36

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60315028

SAMPLE DUPLICATE:

R3453192-4

Parameter Total Organic Halides

SAMPLE DUPLICATE:

Total Organic Halides

mg/L

Units

L1141439-03 Result

mg/L

Units

L1141439-04 Result

mg/L

Units

L1141945-01 Result

mg/L

Units

L1141958-01 Result

mg/L

Units

L1141661-11 Result

mg/L

Units

L1141661-12 Result

mg/L

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

R3454099-5

Parameter Total Organic Halides

SAMPLE DUPLICATE:

L1141439-02 Result

0.00

R3454099-4

Parameter

SAMPLE DUPLICATE:

Units

Qualifiers

R3454099-3

Parameter

SAMPLE DUPLICATE:

Max RPD

RPD

R3453192-9

Parameter

SAMPLE DUPLICATE:

mg/L

Dup Result

R3453192-8

Parameter

SAMPLE DUPLICATE:

L1141439-01 Result

R3453192-7

Parameter

SAMPLE DUPLICATE:

Units

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

R3454099-6

Parameter Total Organic Halides

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/16/2019 05:03 PM

without the written consent of Pace Analytical Services, LLC.

Page 17 of 36

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60315028

SAMPLE DUPLICATE:

R3454099-7

Parameter Total Organic Halides

SAMPLE DUPLICATE:

L1141661-13 Result

mg/L

Units

L1141661-14 Result

mg/L

Units

L1141661-15 Result

mg/L

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

R3454099-8

Parameter Total Organic Halides

SAMPLE DUPLICATE:

Units

Dup Result

Max RPD

RPD ND

0.00

Qualifiers 20

R3454099-9

Parameter Total Organic Halides

Dup Result

Max RPD

RPD ND

200

Qualifiers 20 D8

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/16/2019 05:03 PM

without the written consent of Pace Analytical Services, LLC.

Page 18 of 36

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60315028

QC Batch:

610530

Analysis Method:

SM 2540C

QC Batch Method:

SM 2540C

Analysis Description:

2540C Total Dissolved Solids

Associated Lab Samples: METHOD BLANK:

60315028001

2493950

Associated Lab Samples: Parameter

Units

Total Dissolved Solids

Parameter

Reporting Limit ND

5.0

Analyzed

Qualifiers

09/19/19 16:21

2493951 Units

Total Dissolved Solids

Spike Conc.

LCS Result

LCS % Rec

% Rec Limits

mg/L

1000

987

80-120

Units

60315000002 Result

Dup Result

RPD

Max RPD

mg/L

446

Units

60315372001 Result

mg/L

226

Qualifiers

2493952

Parameter Total Dissolved Solids

SAMPLE DUPLICATE:

Blank Result

mg/L

LABORATORY CONTROL SAMPLE:

SAMPLE DUPLICATE:

Matrix: Water

60315028001

450

Qualifiers 10

2493953

Parameter Total Dissolved Solids

Dup Result

Max RPD

RPD 226

Qualifiers 10

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/16/2019 05:03 PM

without the written consent of Pace Analytical Services, LLC.

Page 19 of 36

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60315028

QC Batch:

611634

Analysis Method:

EPA 300.0

QC Batch Method:

EPA 300.0

Analysis Description:

300.0 IC Anions

Associated Lab Samples: METHOD BLANK:

60315028001

2498338

Associated Lab Samples:

Matrix: Water

60315028001

Parameter

Blank Result

Units

Chloride Fluoride

mg/L mg/L

LABORATORY CONTROL SAMPLE: Parameter

ND ND

1.0 0.20

Spike Conc.

mg/L mg/L

LCS Result

5 2.5

Qualifiers

09/25/19 18:09 09/25/19 18:09

2498340 MS 60315539001 Spike Units Result Conc.

LCS % Rec 4.8 2.4

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

Parameter

Analyzed

2498339 Units

Chloride Fluoride

Reporting Limit

% Rec Limits 96 96

Qualifiers

90-110 90-110

2498341 MSD Spike Conc.

MS Result

MSD Result

MS % Rec

MSD % Rec

% Rec Limits

Max RPD RPD

Chloride

mg/L

7630

2500

12800

10800

206

125

80-120

Fluoride

mg/L

66.4

51.4

129

80-120

Qual

15 E,M1, R1 15 M1,R1

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/16/2019 05:03 PM

without the written consent of Pace Analytical Services, LLC.

Page 20 of 36

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60315028

QC Batch:

611927

Analysis Method:

EPA 300.0

QC Batch Method:

EPA 300.0

Analysis Description:

300.0 IC Anions

Associated Lab Samples: METHOD BLANK:

60315028001

2499474

Associated Lab Samples:

Matrix: Water

60315028001

Parameter

Blank Result

Units

Sulfate

mg/L

LABORATORY CONTROL SAMPLE: Parameter

1.0

Spike Conc.

mg/L

LCS Result 5

Sulfate

2499476 MS 20121881004 Spike Units Result Conc. mg/L

MATRIX SPIKE SAMPLE: Parameter Sulfate

Qualifiers

09/26/19 11:15

5800

5000

LCS % Rec 4.7

MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

Parameter

Analyzed

2499475 Units

Sulfate

Reporting Limit

% Rec Limits 95

Qualifiers

90-110

2499477 MSD Spike Conc. 5000

MS Result

MSD Result

10700

MS % Rec

10700

MSD % Rec

% Rec Limits

Max RPD RPD

80-120

Qual

2499478 Units mg/L

20121775006 Result 0.23U

Spike Conc.

MS Result 5

MS % Rec 5.1

% Rec Limits 102

Qualifiers

80-120

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/16/2019 05:03 PM

without the written consent of Pace Analytical Services, LLC.

Page 21 of 36

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60315028

QC Batch:

610040

Analysis Method:

EPA 353.2

QC Batch Method:

EPA 353.2

Analysis Description:

353.2 Nitrate + Nitrite, Unpres.

Associated Lab Samples: METHOD BLANK:

60315028001

2492071

Associated Lab Samples:

Matrix: Water

60315028001

Parameter

Units

Nitrogen, Nitrate Nitrogen, Nitrite Nitrogen, NO2 plus NO3

mg/L mg/L mg/L

LABORATORY CONTROL SAMPLE:

Units

Nitrogen, Nitrate Nitrogen, Nitrite Nitrogen, NO2 plus NO3

mg/L mg/L mg/L

ND ND ND

0.10 0.10 0.10

Analyzed

Qualifiers

09/18/19 09:02 09/18/19 09:02 09/18/19 09:02

Spike Conc.

LCS Result

LCS % Rec

% Rec Limits

Qualifiers

1 1 2

1.0 1.0 2.1

105 105 105

70-130 90-110 90-110

60315028001 Result

Spike Conc.

MS Result

MS % Rec

2492073

Parameter

Units

Nitrogen, Nitrate Nitrogen, Nitrite Nitrogen, NO2 plus NO3

mg/L mg/L mg/L

SAMPLE DUPLICATE:

Reporting Limit

2492072

Parameter

MATRIX SPIKE SAMPLE:

Blank Result

ND ND ND

1 1 2

1.0 1.0 2.1

% Rec Limits 102 105 103

Qualifiers

70-130 90-110 90-110

2492074

Parameter Nitrogen, Nitrate Nitrogen, Nitrite Nitrogen, NO2 plus NO3

Units

60315056003 Result

mg/L mg/L mg/L

7.3 ND 7.3

Dup Result

Max RPD

RPD 7.4 ND 7.4

0 0

Qualifiers 20 20 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/16/2019 05:03 PM

without the written consent of Pace Analytical Services, LLC.

Page 22 of 36

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60315028

QC Batch:

609706

Analysis Method:

EPA 7196

QC Batch Method:

EPA 7196

Analysis Description:

7196 Chromium, Hexavalent

Associated Lab Samples: METHOD BLANK:

60315028001

2490836

Associated Lab Samples: Parameter

Units

Chromium, Hexavalent

Blank Result

mg/L

LABORATORY CONTROL SAMPLE: Parameter

mg/L

MATRIX SPIKE SAMPLE: Parameter

0.010

Analyzed

Qualifiers

09/16/19 17:28

Spike Conc.

LCS Result

LCS % Rec

% Rec Limits

Qualifiers

0.1

0.093

90-110

60315017001 Result

Spike Conc.

MS Result

MS % Rec

2490838 Units

Chromium, Hexavalent

Reporting Limit

2490837 Units

Chromium, Hexavalent

SAMPLE DUPLICATE:

Matrix: Water

60315028001

mg/L

0.1

0.10

% Rec Limits 102

Qualifiers

85-115

2490839

Parameter Chromium, Hexavalent

Units

60315028001 Result

mg/L

Dup Result

RPD ND

Max RPD

Qualifiers 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/16/2019 05:03 PM

without the written consent of Pace Analytical Services, LLC.

Page 23 of 36

#=QC#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL DATA Project:

IPL INDEPENDENCE

Pace Project No.:

60315028

QC Batch:

609708

Analysis Method:

EPA 7196

QC Batch Method:

EPA 7196

Analysis Description:

7196 Chromium, Hexavalent Diss

Associated Lab Samples: METHOD BLANK:

60315028001

2490844

Associated Lab Samples: Parameter

Units

Chromium, Hexavalent,Dissolved

LABORATORY CONTROL SAMPLE: Parameter

MATRIX SPIKE SAMPLE: Parameter

Reporting Limit ND

0.010

Analyzed

Qualifiers

09/16/19 17:31

2490845

mg/L

Spike Conc.

LCS Result

LCS % Rec

% Rec Limits

Qualifiers

0.1

0.093

90-110

60315017001 Result

Spike Conc.

MS Result

MS % Rec

2490846 Units

Chromium, Hexavalent,Dissolved

Blank Result

mg/L

Units

Chromium, Hexavalent,Dissolved

SAMPLE DUPLICATE:

Matrix: Water

60315028001

mg/L

0.1

0.10

% Rec Limits 104

Qualifiers

85-115

2490847

Parameter Chromium, Hexavalent,Dissolved

Units

60315028001 Result

mg/L

Dup Result

RPD ND

Max RPD

Qualifiers 20

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/16/2019 05:03 PM

without the written consent of Pace Analytical Services, LLC.

Page 24 of 36

#=ARR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

ANALYTICAL RESULTS - RADIOCHEMISTRY Project:

IPL INDEPENDENCE

Pace Project No.:

60315028

Sample: TW-6 PWS: Parameters

Lab ID: 60315028001 Site ID: Method

Radium-226

EPA 903.1

Radium-228

EPA 904.0

Collected: 09/16/19 09:30 Sample Type:

Received: 09/16/19 15:00

Act ± Unc (MDC) Carr Trac 0.155 ± 1.45 (2.81) C:NA T:84% 0.687 ± 0.564 (1.13) C:64% T:90%

Units

Analyzed

Matrix: Water

CAS No.

Qual

pCi/L

10/10/19 14:10 13982-63-3

pCi/L

10/10/19 15:28 15262-20-1

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Page 25 of 36

#=QCR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL - RADIOCHEMISTRY Project:

IPL INDEPENDENCE

Pace Project No.:

60315028

QC Batch:

363850

Analysis Method:

EPA 904.0

QC Batch Method:

EPA 904.0

Analysis Description:

904.0 Radium 228

Associated Lab Samples: METHOD BLANK:

1765167

Associated Lab Samples: Parameter Radium-228

60315028001 Matrix: Water

60315028001 Act ± Unc (MDC) Carr Trac

Units

Analyzed

0.511 ± 0.358 (0.686) C:88% T:73%

pCi/L

10/10/19 15:28

Qualifiers

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

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#=QCR#

Pace Analytical Services, LLC 9608 Loiret Blvd. Lenexa, KS 66219 (913)599-5665

QUALITY CONTROL - RADIOCHEMISTRY Project:

IPL INDEPENDENCE

Pace Project No.:

60315028

QC Batch:

363851

Analysis Method:

EPA 903.1

QC Batch Method:

EPA 903.1

Analysis Description:

903.1 Radium-226

Associated Lab Samples: METHOD BLANK:

1765169

Associated Lab Samples: Parameter Radium-226

60315028001 Matrix: Water

60315028001 Act ± Unc (MDC) Carr Trac 0.321 ± 0.334 (0.497) C:NA T:79%

Units

Analyzed

pCi/L

10/10/19 13:57

Qualifiers

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

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QUALIFIERS Project:

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60315028

DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Act - Activity Unc - Uncertainty: SDWA = 1.96 sigma count uncertainty, all other matrices = Expanded Uncertainty (95% confidence interval). Gamma Spec = Expanded Uncertainty (95.4% Confidence Interval) (MDC) - Minimum Detectable Concentration Trac - Tracer Recovery (%) Carr - Carrier Recovery (%) Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. LABORATORIES PAN

Pace Analytical National

PASI-K

Pace Analytical Services - Kansas City

PASI-PA

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ANALYTE QUALIFIERS

Analyte concentration exceeded the calibration range. The reported result is estimated.

Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.

RPD value was outside control limits.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/16/2019 05:03 PM

without the written consent of Pace Analytical Services, LLC.

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#=CR#

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QUALITY CONTROL DATA CROSS REFERENCE TABLE Project:

IPL INDEPENDENCE

Pace Project No.:

60315028

Lab ID

Sample ID

QC Batch Method

QC Batch

Analytical Method

Analytical Batch

60315028001

TW-6

EPA 3010

611805

EPA 6010

611843

60315028001

TW-6

EPA 3010

611809

EPA 6010

611998

60315028001

TW-6

EPA 7470

610447

EPA 7470

610475

60315028001

TW-6

EPA 7470

610659

EPA 7470

610681

60315028001

TW-6

EPA 903.1

363851

60315028001

TW-6

EPA 904.0

363850

60315028001

TW-6

SM 2540C

610530

60315028001

TW-6

410.1

1351436

EPA 410.4

1351436

60315028001

TW-6

5310 B-2011

1349346

SM 5310B

1349346

60315028001

TW-6

5320 B-2010

1349618

SM 5310B

1349618

60315028001

TW-6

Trivalent Chromium Calculation

612543

60315028001

TW-6

EPA 300.0

611634

60315028001

TW-6

EPA 300.0

611927

60315028001

TW-6

EPA 353.2

610040

60315028001

TW-6

EPA 7196

609706

60315028001

TW-6

EPA 7196

609708

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full,

Date: 10/16/2019 05:03 PM

without the written consent of Pace Analytical Services, LLC.

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Appendix E Aquifer Testing

APPENDIX E IPL AQTESOLV TEST RESULTS SUMMARY

Project Information

Well

Borehole

MW-1 MW-1 MW-2 MW-2 MW-2 MW-3 MW-3 MW-4 MW-4

BH-7 BH-7 BH-8 BH-8 BH-8 BH-9 BH-9 BH-10 BH-10

Slug Type and File Name*

MW 7 Slug In 1645_2019-08-05_16-11-21-080 MW 7 Slug Out 1614_2019-08-05_16-10-36-458 MW 8 Slug In 1615_2019-08-05_16-39-11-735 MW 8 Slug Out 0811_2019-08-06_08-43-22-853 MW 8 Slug Out 1825_2019-08-06_18-53-47-311 MW 9 Slug In 1152_2019-08-06_12-33-23-305 MW 9 Slug Out 1234_2019-08-06_13-12-43-858 MW 10 Slug In 1520_2019-08-06_15-56-00-065 MW 10 Slug Out 1558_2019-08-06_1643-59-196

Aquifer Data

Test Date

Sat. Thickness

Anisotrophy Ratio

8/3/2019 8/3/2019 8/5/2019 8/6/2019 8/6/2019 8/6/2019 8/6/2019 8/6/2019 8/6/2019

ft 5 5 15 15 15 10 10 11.5 11.5

Kz/Kr 1 1 1 1 1 1 1 1 1

Well Data Aquifer material fine sand fine sand silt silt silt sand sand silty clay, clay silty clay, clay

Solution

Initial Displacement

Total Penetration Depth (TOR)

Casing Radius

Depth to Water (TOR)

Static Water Column Height

Screen Length

ft 0.848 1.009 0.949 0.881 1.054 1.041 0.955 0.904 1.614

ft 36.6 36.6 37.25 37.25 37.25 35 35 45 45

ft 0.083 0.083 0.083 0.083 0.083 0.083 0.083 0.083 0.083

ft 25.14 25.2 22.05 22.16 22.09 21.256 21.256 33.45 33.451

ft 11.46 11.4 15.2 15.09 15.16 13.744 13.744 11.55 11.549

ft 17.5 17.5 20 20 20 20 20 30 30

Depth to Top of Well Screen ft 19.1 19.1 17.25 17.25 17.25 15 15 15 15

Well Radius ft 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

Gravel Pack Porosity 0 0 0 0 0 0 0 0 0

Aquifer Model Confined Confined Unconfined Unconfined Unconfined Confined Confined Unconfined Unconfined Average

K ft/day 3.37E-01 3.08E-01 4.54E-01 3.88E-01 3.17E-01 2.76E-01 1.93E-01 1.79E-01 1.71E-01 2.84E-01

Solution Method cm/sec 1.2E-04 1.1E-04 1.6E-04 1.4E-04 1.1E-04 9.7E-05 6.8E-05 6.3E-05 6.0E-05 1.00E-04

Bouwer-Rice Bouwer-Rice Bouwer-Rice Bouwer-Rice Bouwer-Rice Bouwer-Rice Bouwer-Rice Bouwer-Rice Bouwer-Rice

y0 ft 0.5807 0.6519 0.6733 0.5704 0.6457 0.7128 0.5509 0.907 0.9351 6.64E-01

Appendix F Groundwater Flow Modeling

Technical Memorandum To: Project file From: Katrina Marini Subject: IPL Blue Valley CCR Site Groundwater Model Date: January 31, 2020 Project: 25491019 c: Tony Schroer

1.0

Introduction

The Blue Valley Power Plant is located at 21500 East Truman Road in Independence, Missouri (Figure F-1). The Facility completed the closure of three coal combustion residual (CCR) impoundments and a final closure report in early 2018 following the Facility’s discontinuation of all coal power generation and corresponding conversion to a natural gas power facility in 2015 (SCS, 2018). The study area for this report includes the CCR impoundments and areas immediately adjacent to the impoundments. For the purposes of this technical memorandum the CCR impoundments and areas immediately adjacent to the impoundments will be referred to as the Site, whereas the entire Blue Valley Power Plant will be referred to as the Facility. A groundwater flow model was developed to represent groundwater flow directions at the Site and in the surrounding area in support of CCR groundwater monitoring. It is common practice in the field of groundwater modeling to develop models that are simplified to the degree possible while still incorporating enough complexity to meet the model objectives (Anderson and Woessner, 2002). In this case, model simplifications (e.g., homogeneous aquifer properties) were consistent with a medium-fidelity model as defined in ASTM D5981 (ASTM, 2018), in which the model was designed to resemble the physical system but not necessarily closely match observations of the system. This technical memorandum describes the process of model development, along with data used to support decisions made during the modeling process.

2.0

Model Development

2.1

Site Hydrogeology and Modeled Flow Conditions

Groundwater at and near the Site generally flows toward the Little Blue River in the unconsolidated deposits and shallow bedrock. 2.2

Model Software Selection

A localized, steady-state, three-dimensional groundwater flow model was developed using MODFLOWNWT (Niswonger et al., 2011), a United States Geological Survey groundwater modeling code. MODFLOW-NWT was developed to improve representation of unconfined aquifers when unsaturated

Barr Engineering Co. 1001 Diamond Ridge, Suite 1100, Jefferson City, MO 65109 573.638.5000 www.barr.com

To: Project file From: Katrina Marini Subject: IPL Blue Valley CCR Site Groundwater Model Date: January 31, 2020 Page: 2

conditions (simulated heads below the base of a model cell) may occur in part of the active domain (Niswonger et al., 2011).

3.0

Model Construction

The graphical user interface Groundwater Vistas (ESI, 2017, Version 7) was used to help construct the MODFLOW model for this application. 3.1

Model Domain, Grid, and Layers

The model domain encompasses approximately 11 square miles surrounding the Site, as proposed in the Work Plan (Barr, 2019). The model area was discretized horizontally into rectangular cells ranging from 25 feet by 25 feet at the Site to 400 feet by 400 feet near the edges of the model domain. Vertically, the model was divided into 5 layers representing (in order from top to bottom) the CCR impoundments; the silt/clay unit underlying the impoundment; the sandy unit(s) bisecting the silt/clay unit, where present; interbedded limestone, sandstone, and shale, where present; and siltstone (Table F-1). Deeper bedrock was excluded from the model, consistent with the assumptions that the vertical component of groundwater flow will be low relative to the horizontal component of groundwater flow and that the underlying siltstones and shales have low hydraulic conductivities. Table F-1. Model layers Hydrogeologic Unit CCR impoundments Silt/clay Silt/clay or siltstone Fine sand; silt/clay; alluvium; or interbedded limestone, sandstone, and siltstone Siltstone or interbedded limestone, sandstone, and siltstone

3.2

Model Layer 1 2 3 4

Bottom Elevation (feet MSL) 745 735 725 710

Thickness (feet) 2 - 50 10 10 15

650

Hydraulic Conductivity Distribution

Limited geologic data are available for the model domain. Geologic logs from wells, piezometers, and boreholes installed at the Site were used to assign hydraulic conductivity zones at the Site. The zones were extended beyond the Site based on geologic maps (MDNR, 2017; 2018), descriptions of regional geology (Kelly, 1996; Miller and Vandike, 1997), and Site data. The hydraulic conductivity zones are simplified interpretations of the available geologic information. The distribution of hydrogeologic units, as represented in the model, is presented in Figures F-2 through F-6. 3.3

Boundary Conditions

The active model domain is bounded by no-flow cells at watershed divides and general head boundary cells elsewhere. Transmissivity of each general head boundary was estimated by multiplying the area perpendicular to the direction of groundwater flow (model cell thickness times cell width) by the hydraulic

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conductivity of the hydrogeologic unit represented in the cell. The hydraulic conductivity component was updated during model calibration as hydraulic conductivity parameters were adjusted. The bottom of the model is a no-flow boundary. Head-dependent flux cells represent surface water features, including the Little Blue River, streams, ponds, the impoundments (when active), and the existing sedimentation basin. The distribution of boundary conditions, as represented in the model, is presented in Figures F-7 through F-11. The distribution of recharge zones is presented in Figure F-12.

4.0

Model Calibration

Calibration was completed using a combination of manual methods and the automated parameter calibration code PEST (Doherty, 2018; Version 15). Through systematic adjustment of model parameters within a user-specified range, PEST attempts to minimize the difference between observed and modeled values (residuals), and the objective of the model calibration was to minimize the residuals to the extent practicable by applying minor calibration efforts consistent with a medium-fidelity model as defined in ASTM D5981 (ASTM, 2018). Two steady-state scenarios, representative of active impoundment and post-closure impoundment conditions, were used to calibrate the model. 4.1

Calibration Datasets

Groundwater elevation data are available from piezometers and wells in 1977, 2012, 2019, and 2020. Data collected September 7, 2012 were used to represent active impoundment conditions (Aquaterra, 2012). Data collected by Barr staff on January 9, 2020 were used to represent post-closure impoundment conditions. Table F-2 summarizes the groundwater elevation data used in calibration. Table F-2. Summary of head targets Location A1a A1b A2 B2 C1a C1b C2 MW-1 MW-2 MW-3 MW-4 MW-5 MW-6 MW-7 TW-3 MW-8

Groundwater Elevation (feet amsl) <751.82 (1) 742.28 746.32 748.62 <756.01 (1) 751.54 750.66 744.89 749.16 746.46 748.15 741.76 757.60 756.72 765.17 755.44

Model Layer 1 2 4 3 1 2 3 4 4 4 4 5 5 5 5 5

Model Active impoundments Active impoundments Active impoundments Active impoundments Active impoundments Active impoundments Active impoundments Post-closure Post-closure Post-closure Post-closure Post-closure Post-closure Post-closure Post-closure Post-closure

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Piezometers A1a and C1a were dry. Head targets at these locations were censored, so that only modeled heads above the bottom of the piezometers produced non-zero residuals during calibration.

Seepage from the impoundments was estimated for active impoundment conditions. The calculation of potential seepage was based on pond and piezometer water levels measured in 2012, as well as the approximate pond areas from the same period (Aquaterra, 2012), and the geometric mean hydraulic conductivity of silt/clay from slug tests. The calibration target for seepage was 35 gpm. 4.2

Calibration Parameters

Model inputs adjusted during calibration consisted of horizontal hydraulic conductivity, vertical anisotropy, and river conductance multipliers. A user-specified range of input values was applied to each adjusted input. Site-specific slug tests were used to define the range of input values for silt/clay and fine sand, since slug tests were completed in wells screened across those materials. Table F-3 summarizes the initial value, range of values, and calibrated value for each of the adjusted inputs. Table F-4 summarizes horizontal and vertical hydraulic conductivity by hydrogeologic unit. Table F-3. Summary of adjusted inputs Input

Units feet/day

Calibrated Value 8.13E-03

Lower Bound 3.28E-04

Upper Bound 32.8

Basis of Upper and Lower Bounds Assumed from literature (1)

Horizontal hydraulic conductivity of ash Horizontal hydraulic conductivity of fill in impoundment berms Horizontal hydraulic conductivity of silt/clay Horizontal hydraulic conductivity of alluvium Horizontal hydraulic conductivity of fine sand Horizontal hydraulic conductivity of siltstone Horizontal hydraulic conductivity of interbedded limestone, sandstone, and siltstone Anisotropy of ash Anisotropy of fill in impoundment berms Anisotropy of silt/clay Anisotropy of alluvium Anisotropy of fine sand Anisotropy of siltstone Anisotropy of interbedded limestone, sandstone, and siltstone Regional recharge Impoundment recharge (active)

feet/day

9.72E-03

3.28E-04

32.8

feet/day

0.0277

1.28E-05

0.328

Site-specific data; assumed similar to silt/clay (2) Site-specific data

feet/day

30.4

3.28E-03

32.8

Assumed from literature

feet/day

189

3.28E-03

328

Site-specific data

feet/day

0.284

3.28E-05

0.328

Assumed from literature

feet/day

0.322

3.28E-05

3.28

Assumed from literature

unitless unitless

6.45 2.00

2.0 2.0

100 1000

Assumed from literature Assumed from literature

unitless unitless unitless unitless unitless

2.05 20.0 2.22 22.9 2.03

2.0 2.0 2.0 2.0 2.0

1000 1000 100 100 1000

Assumed from literature Assumed from literature Assumed from literature Assumed from literature Assumed from literature

in/yr in/yr

8.81E-04 4.34E-03

4.50E-04 4.50E-04

11.2 11.2

0.001-25% precipitation (3) 0.001-25% precipitation

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Impoundment recharge (postclosure) Impoundment drainageway recharge (post-closure) River conductance factor (Little Blue River) River conductance factor (stream upper reaches) River conductance factor (stream lower reaches) River conductance factor (ponds) River conductance factor (North Fly Ash impoundment) River conductance factor (South Fly Ash impoundment) River conductance factor (Bottom Ash impoundment) River conductance factor (Sedimentation Basin) Drain conductance factor (ditches) (1)

in/yr

6.54E-04

4.50E-04

1.83

0.001-4% precipitation

In/yr

1.22

4.50E-04

45.0

0.001-100% precipitation

feet/day

3.42

3.28E-04

3281

Assumed from literature

feet/day

9.75

3.28E-04

3281

Assumed from literature

feet/day

0.0144

3.28E-04

3281

Assumed from literature

feet/day feet/day

0.0658 13.8

3.28E-04 3.28E-04

3281 3281

Assumed from literature Assumed from literature

feet/day

15.4

3.28E-04

3281

Assumed from literature

feet/day

6.76

3.28E-04

3281

Assumed from literature

feet/day

2.83E-04

3.28E-04

3281

Site-specific data (SCS, 2018)

feet/day

1.07

3.28E-04

3281

Assumed from literature

Literature values for hydraulic conductivity ranges based on Freeze and Cherry, 1979; Driscoll, 1986; Kelly, 1996; Miller and Vandike, 1997. Site-specific data taken from slug test analyses. Average precipitation, approximately 45 in/yr, calculated from PRISM dataset for 1970 – 2017 (PRISM Climate Group, 2019).

(2) (3)

Table F-4. Summary of Hydraulic Conductivity Hydrogeologic Unit Ash Embankments Silt/clay Alluvium Fine sand Siltstone/shale Interbedded limestone, sandstone, and siltstone

4.3

Horizontal Hydraulic Conductivity (feet/day) 0.00813 0.0972 0.0277 30.4 189 0.284 0.322

Vertical Hydraulic Conductivity (feet/day) 0.00126 4.86E-03 0.0135 1.52 85.3 0.0124 0.159

Calibration Results

Table F-5 summarizes the key calibration statistics, which are defined as follows: •

Range in Observed Groundwater Elevations – the difference between the maximum and minimum groundwater elevations calculated from site-specific water level measurements.

•

Residual Mean – the mean of the residuals calculated for each calibration observation.

•

Absolute Residual Mean – the mean of the absolute values of the residuals calculated for each calibration observation.

•

Maximum Absolute Residual – the greatest absolute value residual.

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•

Absolute Residual Mean / Range – the mean of the absolute values of the residuals divided by the range in observed groundwater elevations.

Table F-5. Calibration Statistics for Head Observations Statistics Range in Observed Groundwater Elevation (feet) Residual Mean (feet) Absolute Residual Mean (feet) Maximum Absolute Residual (feet) Absolute Residual Mean / Range

Active Conditions 13.73 -0.33 2.11 7.29 0.15

Post-closure Conditions 23.41 1.10 4.22 9.39 0.18

Although the maximum absolute residuals are relatively high, the statistics above are considered an acceptable fit between the calibration observations and the model results for the available site-specific data and intended uses of the model. A scatter plot of modeled and measured groundwater elevations with active and post-closure conditions is presented on Figure F-13. In general, an acceptable match to the active conditions observations was achieved. The post-closure conditions observations contained more scatter among residuals at the upper range of measured elevations and some spatial bias indicated by underprediction (i.e. modeled groundwater elevations lower than measured) of observations at the lower range of measured elevations. The modeled seepage from the impoundments during active conditions was 18.1 gpm, approximately half of the estimated seepage of 35 gpm used as a calibration target. Groundwater flow rates generally have higher uncertainty than groundwater elevation data, so modeled values within one order of magnitude are typically considered acceptable (ASTM, 2018). Overall, the calibration was deemed acceptable, given the objectives and intended uses of the model.

5.0

Deviations from the Work Plan

The following aspects of model development and calibration differed from the methods proposed in the Work Plan (Barr, 2018): •

The bottom of the model was defined with a no-flow boundary in the Pennsylvanian bedrock instead of a general head boundary representing water levels in the underlying Mississippian bedrock.

•

The top of the model in layer 2 was defined with topographic data rather than the approximate water table.

•

Horizontal and vertical gradients between wells were not used as calibration targets. Instead only the groundwater elevations were used.

•

Baseflow estimates for the Little Blue River were not used as calibration targets. Baseflow data were not located for the Little Blue River in the area of interest.

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6.0

Summary

A medium-fidelity groundwater flow model for the Site was developed and calibrated against two hydrologic conditions. The modeled fit to target data were considered acceptable for the purpose of evaluating groundwater flow directions historically in active impoundment conditions and in the current closed impoundment conditions. 6.1

Model Results

The modeled regional direction of groundwater flow is east-southeast toward the Little Blue River. Figure F-14 presents modeled groundwater contours near the Site under active and post-closure conditions. Modeled groundwater flow at the site is generally consistent with regional trends. Modeled seepage from the North Fly Ash Pond, while active, flowed to the east (offsite) or to the south, toward the South Fly Ash Pond. Post-closure, groundwater flow directions were very similar in and around the former North Fly Ash Pond area. Modeled seepage from the Bottom Ash Pond, while active, flowed north to the sandy unit underlying the impoundment or southeast. Post-closure, modeled groundwater flow in the former Bottom Ash Pond area was toward the sandy unit underlying the impoundment. Modeled seepage from the existing Settling Basin was toward the east. Modeled seepage from the South Fly Ash Pond, while active, was to the north to the sandy unit underlying the impoundment or the east and southeast. Post-closure, the divide within the South Fly Ash Pond area was less pronounced; the modeled groundwater flow directions were northeast to the sandy unit underlying the impoundment and east (offsite). 6.2

Recommendations

Additional aquifer testing could be used to in improve understanding of the Site hydrogeology. Slug testing at MW-5 and at the temporary wells (MW-6, MW-7, and MW-8) would improve estimates of alluvium and bedrock hydraulic properties, respectively. The groundwater flow model could be updated and recalibrated with any new Site data collected in subsequent phases of work. At the same time or as a separate effort, sensitivity analysis could be performed on the groundwater flow model to identify the model parameters to which modeled groundwater flow directions are most sensitive and whether sufficient data are available to constrain those parameters. A potential future use of the groundwater flow model is particle tracking. The particle-tracking program MODPATH could be used with the existing groundwater flow model to visualize the modeled movement of groundwater in specific areas near the Site. Particle tracking could also be used to predict potential travel times.

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7.0

References

Anderson, M.P. and Woessner, W.W., 2002. Applied Groundwater Modeling, Simulation of Flow and Advective Transport: Academic Press, Inc., New York, New York, 381 p. Aquaterra Environmental Solutions, Inc. (Aquaterra), 2012. Ash Pond Seepage and Stability Evaluation, Independence Power & Light, Blue Valley Power Station, 21500 E. Truman Road, Independence, Missouri. Prepared for Independence Power & Light. October 17, 2012. ASTM, 2014. D5490-93(2014)e1 Standard Guide for Comparing Ground-Water Flow Model Simulations to Site-Specific Information. ASTM International, West Conshohocken, PA, https://doi.org/10.1520/D5490-93R14E01 ASTM, 2018. D5981/D5981M – 18: Standard Guide for Calibrating a Groundwater Flow Model Application. ASTM International, West Conshohocken, PA, https://doi.org/10.1520/D5981_D5981M-18 Barr Engineering Co. (Barr), 2019. Blue Valley Coal Combustion Residuals Impoundment Site Characterization Work Plan, Independence Power and Light Blue Valley Power Plant, Independence, Missouri. April 2019. Doherty, J., 2018. PEST: Model-Independent Parameter Estimation, User Manual Part I: PEST, SENSAN, and Global Optimisers, 7th ed.: Watermark Numerical Computing. Available at http://www.pesthomepage.org/Downloads.php Driscoll, F.G., 1986. Groundwater and Wells, 2nd ed.: Johnson Screens, St. Paul, Minnesota, p 75. Environmental Simulations, Inc. (ESI). 2017. Guide to Using Groundwater Vistas, Version 7. Freeze, R.A. and Cherry, J.A., 1979. Groundwater, Prentice-Hall, Inc., Englewood Cliffs, New Jersey, p 29. GEI Consultants, Inc. (GEI), 2011. Site Specific Assessment for Blue Valley Power Station North and South Fly Ash Ponds and Bottom Ash Pond. Prepared for U.S. Environmental Protection Agency. June 2011. Harbaugh, A.W., 2005, MODFLOW-2005, The U.S. Geological Survey modular ground-water model—the ground-water flow process: U.S. Geological Survey Techniques and Methods 6-A16, Kelly, B.P., 1996. Simulation of Ground-Water Flow and Contributing Recharge Areas in the Missouri River Alluvial Aquifer at Kansas City, Missouri and Kansas: U.S. Geological Survey Water-Resources Investigations Report 96-4250. Available at https://pubs.er.usgs.gov/publication/wri964250 Miller, D.E. and Vandike, J.E., 1997. Missouri State Water Plan Series Volume II - Groundwater Resources of Missouri: Missouri Department of Natural Resources, Water Resources Report Number 46, p. 175-184. https://dnr.mo.gov/pubs/WR46.pdf

P:\Jeff City\25 MO\49\25491019 Groundwater Monitoring Program\WorkFiles\Characterization Report\Appendix F - Groundwater Flow Model\GW model tech memo_v1d3.docx

To: Project file From: Katrina Marini Subject: IPL Blue Valley CCR Site Groundwater Model Date: January 31, 2020 Page: 9

Niswonger, R.G., Panday, S. and Ibaraki, M., 2011. MODFLOW-NWT, A Newton Formulation for MODLOW2005. U.S. Geological Survey Techniques and Methods 6-A37, 44 p. PRISM Climate Group, 2019. PRISM Time Series Data – Monthly Precipitation at 4km Resolution: Oregon State University, retrieved July 23, 2019. http://prism.oregonstate.edu SCS Engineers (SCS), 2018. Ash Impoundment Closure Report, Independence Power & Light, Blue Valley Power Station, 21500 East Truman Road, Independence, Missouri 64056. Prepared for Independence Power & Light. April 2018.

P:\Jeff City\25 MO\49\25491019 Groundwater Monitoring Program\WorkFiles\Characterization Report\Appendix F - Groundwater Flow Model\GW model tech memo_v1d3.docx

Figures

Barr Footer: ArcGIS 10.7.1, 2020-02-06 09:30 File: I:\Projects\25\49\1019\Maps\Reports\Characterization_Report\GW_Model\Figure F-1 Site Location.mxd User: MRQ

£ ¤

Ja c ks o n C o u n t y HUC8: Lower Missouri-Crooked 10300101 HUC12: Little Blue River 103001010208

Property Boundary

W es

tF ire

Pr a

ir i e

Perennial Stream or River

Intermittent Stream, River, or Wash

Cr ee k

County Boundary HUC12 Watershed Boundary

Wetlands (NWI)

Freshwater Emergent Wetland

Lit tle

Bl u

er e R iv

Spr ing Bran c h Cr

Freshwater Forested/ Shrub Wetland

ee k

Freshwater Pond

Other

Stream

HUC12: Burr Oak Creek-Little Blue River 103001010207

Riverine

reek r O ak C r u B

; ! N

1,500

3,000

4,500

Feet

FIGURE F-1

Barr Footer: ArcGIS 10.7.1, 2020-02-04 16:46 File: I:\Projects\25\49\1019\Maps\Reports\Characterization_Report\GW_Model\Figure F-2 Hydraulic Conductivity Distribution L1.mxd User: MRQ

Active Conditions TW-4 ! >

MW-1 ! > C1a ! >! > C2 C1b

POWELL RD

TW-1 ! >

MW-2 ! >

B2 ! >

MW-3 ! >

TW-2 ! >

A1a A1b ! >! > A2 MW-4 ! > TW-3 ! > 78 MW-5 ! >

Post-Closure Conditions TW-4 ! >

MW-1 ! > C1a ! >! > C1b C2

POWELL RD

TW-1 ! >

MW-2 ! >

B2 ! >

MW-3 ! >

TW-2 ! >

A1a >! > A1b ! A2 MW-4 ! > TW-3 ! > 78 Note: Property boundary obtained from Jackson County parcel dataset, MO GIS Department. Imagery: NearMap, July 2019

MW-5 ! >

! >

Current Well Location

Hydraulic Conductivity Zone

! >

Former Piezometer Location

Ash

Property Boundary

Fill

Site Features

Silt/Clay

DRAFT

; ! N

Feet

500

HYDRAULIC CONDUCTIVITY DISTRIBUTION - LAYER 1 Independence Power & Light Independence, Missouri FIGURE F-2

Barr Footer: ArcGIS 10.7.1, 2020-02-05 09:41 File: I:\Projects\25\49\1019\Maps\Reports\Characterization_Report\GW_Model\Figure F-3 Hydraulic Conductivity Distribution L2.mxd User: MRQ

£ ¤ 7

SEE INSET

! >

! > ! >

! > ! > ! ! > > ! ! > > ! > ! > ! > ! >

! >

TW-4 ! >

INSET TW-1 ! >

TW-2 ! > TW-3 ! >

MW-1 ! > C1b ! >! > C2

MW-2 ! > B2 ! > MW-3 ! > A1b A2 ! >! > MW-4 ! >

MW-5 ! > Note: Property boundary obtained from Jackson County parcel dataset, MO GIS Department. Imagery: USDA-FSA-APFO NAIP, 2018

291

! >

Current Well Location

! >

Former Piezometer Location Hydrogeologic Unit Property Boundary Impoundment Boundary

Settling Pond Silt/Clay

; ! N

DRAFT

Feet

3,000

HYDRAULIC CONDUCTIVITY DISTRIBUTION - LAYER 2 Independence Power & Light Independence, Missouri FIGURE F-3

Barr Footer: ArcGIS 10.7.1, 2020-02-05 14:25 File: I:\Projects\25\49\1019\Maps\Reports\Characterization_Report\GW_Model\Figure F-4 Hydraulic Conductivity Distribution L3.mxd User: MRQ

£ ¤ 7

SEE INSET

! >

! > ! >

! > ! > ! > ! ! > > ! > ! > ! >

! >

TW-4 ! >

INSET

MW-1 ! > C2 ! >

TW-1 ! >

TW-2 ! > TW-3 ! >

MW-2 ! > B2 ! > MW-3 ! > A2 ! > MW-4 ! >

MW-5 ! > Note: Property boundary obtained from Jackson County parcel dataset, MO GIS Department. Imagery: USDA-FSA-APFO NAIP, 2018

291

! >

Current Well Location

! >

Former Piezometer Location Property Boundary Impoundment Boundary Settling Pond

Hydraulic Conductivity Zone Interbedded Limestone, Sandstone, and Siltstone No Flow

; ! N

Silt/Clay

DRAFT

Feet

3,000

HYDRAULIC CONDUCTIVITY DISTRIBUTION - LAYER 3 Independence Power & Light Independence, Missouri FIGURE F-4

Barr Footer: ArcGIS 10.7.1, 2020-02-05 14:36 File: I:\Projects\25\49\1019\Maps\Reports\Characterization_Report\GW_Model\Figure F-5 Hydraulic Conductivity Distribution L4.mxd User: MRQ

£ ¤ 7

SEE INSET

! > ! > ! > ! > ! > ! >

! >

! > ! >

! >

TW-4 ! >

INSET

MW-1 ! >

TW-1 ! >

TW-2 ! > TW-3 ! >

MW-2 ! > MW-3 ! > A2 ! > MW-4 ! >

MW-5 ! > Note: Property boundary obtained from Jackson County parcel dataset, MO GIS Department. Imagery: USDA-FSA-APFO NAIP, 2018

291

! > ! >

Current Well Location

Former Piezometer Location Property Boundary

Impoundment Boundary Settling Pond

Hydraulic Conductivity Zone Silt/Clay

Alluvium

Fine Sand Siltstone

No Flow

DRAFT

; ! N

Feet

3,000

HYDRAULIC CONDUCTIVITY DISTRIBUTION - LAYER 4 Independence Power & Light Independence, Missouri FIGURE F-5

Barr Footer: ArcGIS 10.7.1, 2020-02-05 14:49 File: I:\Projects\25\49\1019\Maps\Reports\Characterization_Report\GW_Model\Figure F-6 Hydraulic Conductivity Distribution L5.mxd User: MRQ

£ ¤ 7

SEE INSET

! >

! > ! > ! >

TW-4 ! >

INSET TW-1 ! >

TW-2 ! > TW-3 ! > MW-5 ! > Note: Property boundary obtained from Jackson County parcel dataset, MO GIS Department. Imagery: USDA-FSA-APFO NAIP, 2018

291

! >

Current Well Location Property Boundary

Impoundment Boundary Settling Pond

Hydraulic Conductivity Zone

Alluvium Interbedded Limestone, Sandstone, and Siltstone Siltstone

DRAFT

No Flow

; ! N

Feet

3,000

HYDRAULIC CONDUCTIVITY DISTRIBUTION - LAYER 5 Independence Power & Light Independence, Missouri FIGURE F-6

Barr Footer: ArcGIS 10.7.1, 2020-02-05 16:11 File: I:\Projects\25\49\1019\Maps\Reports\Characterization_Report\GW_Model\Figure F-7 Boundary Conditions Distribution L1.mxd User: MRQ

POWELL RD

Active Conditions

POWELL RD

Post-Closure Conditions

78 Note: 78 Property boundary obtained from Jackson County parcel dataset, MO GIS Department. Imagery: NearMap, July 2019

Property Boundary Site Features

Boundary Conditions

Head-dependent Flux (River Package) No Flow

DRAFT

; ! N

Feet

500

BOUNDARY CONDITIONS DISTRIBUTION - LAYER 1 Independence Power & Light Independence, Missouri FIGURE F-7

Laz y

Br a

nc h

Barr Footer: ArcGIS 10.7.1, 2020-02-06 09:39 File: I:\Projects\25\49\1019\Maps\Reports\Characterization_Report\GW_Model\Figure F-8 Boundary Conditions Distribution L2.mxd User: MRQ

£ ¤

SEE INSET

Spr ing Br an ch

ur r Oa

reek kC

INSET

R ive

lue eB ittl

Note: Property boundary obtained from Jackson County parcel dataset, MO GIS Department. Imagery: USDA-FSA-APFO NAIP, 2018

DRAFT

291

Property Boundary

Impoundment Boundary Settling Pond

Boundary Condition Cell

Head-dependent Flux (Drain Package)

Head-dependent Flux (GHB Package)

Head-dependent Flux (River Package)

Hydraulic Conductivity Zone Silt/Clay

No Flow

; ! N

Feet

3,000

BOUNDARY CONDITIONS DISTRIBUTION - LAYER 2 Independence Power & Light Independence, Missouri FIGURE F-8

Laz y

Br a

nc h

Barr Footer: ArcGIS 10.7.1, 2020-02-05 16:26 File: I:\Projects\25\49\1019\Maps\Reports\Characterization_Report\GW_Model\Figure F-9 Boundary Conditions Distribution L3.mxd User: MRQ

£ ¤

SEE INSET

Spr ing Br an ch

ur r Oa

reek kC

INSET

291

R ive

lue eB ittl

Note: Property boundary obtained from Jackson County parcel dataset, MO GIS Department. Imagery: USDA-FSA-APFO NAIP, 2018

DRAFT Property Boundary

Impoundment Boundary Settling Pond

Boundary Condition Cell Head-dependent Flux (Drain Package) Head-dependent Flux (GHB Package)

Head-dependent Flux (River Package)

Hydraulic Conductivity Zone

Silt/Clay Interbedded Limestone, Sandstone, and Siltstone 0 No Flow

; ! N

Feet

BOUNDARY CONDITIONS DISTRIBUTION - LAYER 3 Independence Power & Light Independence, Missouri 3,000 FIGURE F-9

Laz y

Br a

nc h

Barr Footer: ArcGIS 10.7.1, 2020-02-05 16:30 File: I:\Projects\25\49\1019\Maps\Reports\Characterization_Report\GW_Model\Figure F-10 Boundary Conditions Distribution L4.mxd User: MRQ

£ ¤

SEE INSET

Spr ing Br an ch

ur r Oa

reek kC

INSET

R ive

lue eB ittl

Note: Property boundary obtained from Jackson County parcel dataset, MO GIS Department. Imagery: USDA-FSA-APFO NAIP, 2018

291

Property Boundary

Impoundment Boundary Settling Pond

Boundary Condition Cell Head-dependent Flux (GHB Package)

Head-dependent Flux (River Package)

Hydraulic Conductivity Zone Silt/Clay

Alluvium

Fine Sand Siltstone No Flow

DRAFT 0

; ! N

Feet

3,000

BOUNDARY CONDITIONS DISTRIBUTION - LAYER 4 Independence Power & Light Independence, Missouri FIGURE F-10

Laz y

Br a

nc h

Barr Footer: ArcGIS 10.7.1, 2020-02-05 16:36 File: I:\Projects\25\49\1019\Maps\Reports\Characterization_Report\GW_Model\Figure F-11 Boundary Conditions Distribution L5.mxd User: MRQ

£ ¤

SEE INSET

Spr ing Br an ch

ur r Oa

reek kC

INSET

R ive

lue eB ittl

Note: Property boundary obtained from Jackson County parcel dataset, MO GIS Department. Imagery: USDA-FSA-APFO NAIP, 2018

291

Property Boundary

Impoundment Boundary Settling Pond

Boundary Condition Cell Head-dependent Flux (GHB Package)

Hydraulic Conductivity Zone Alluvium Interbedded Limestone, Sandstone, and Siltstone Siltstone No Flow

DRAFT

; ! N

Feet

3,000

BOUNDARY CONDITIONS DISTRIBUTION - LAYER 5 Independence Power & Light Independence, Missouri FIGURE F-11

Barr Footer: ArcGIS 10.7.1, 2020-01-28 17:46 File: I:\Projects\25\49\1019\Maps\Reports\Characterization_Report\GW_model\Fig12 Recharge Distribution.mxd User: kam2

POWELL RD

Active Conditions

POWELL RD

Post-Closure Conditions

78 Note: Property boundary obtained from Jackson County parcel dataset, MO GIS Department. Imagery: NearMap, July 2019

Property Boundary Recharge Zone Site Features

1, Offsite

2, Active Impoundment Area

DRAFT

3, Post-Closure Impoundment Area 4, Post-Closure Cap Drainage Area

; ! N

Feet

500

RECHARGE DISTRIBUTION Independence Power & Light Independence, Missouri FIGURE F-12

Barr Footer: ArcGIS 10.7.1, 2020-04-09 08:26 File: I:\Projects\25\49\1019\Maps\Reports\Characterization_Report\GW_Model\Figure F-13 Modeled Groundwater Contours.mxd User: kam2

760

765

770

805

78 78 5 0 775

Active Conditions

755 75

750

POWELL RD

0 80 5 79

805 790

POWELL RD

800

Post-Closure Conditions

8 79 00 5

745

755

760

745

750

Property Boundary Site Features

Groundwater Flow Direction Groundwater Contour (CI = 5 feet)

Note: Property boundary obtained from Jackson County parcel dataset, MO GIS Department. Imagery: NearMap, July 2019

Boundary Condition Cell

Layer 1 Head-dependent Flux (River Package)

DRAFT

; ! N

Feet

500

MODELED GROUNDWATER CONTOURS - LAYER 2 Independence Power & Light Independence, Missouri FIGURE F-13