3_Northfield Project Reference Document_Cost Estimates by Jody Gunderson

Utilities :

Existing Drainage Divides North Development Site City of Northfield, MN Dakota and Rice Counties Legend Streams Topographic Contours (2-ft Interval) MN DNR Major Watershed Divides Study Area Watersheds Development Limits

째 Feet

1,000

2,000

Existing Drainage Divides South Development Site City of Northfield, MN Dakota and Rice Counties Legend Streams Topographic Contours (2-ft Interval) MN DNR Major Watershed Divides Study Area Watersheds Development Limits

째 Feet

1,000

2,000

Soil Conditions North Development Site City of Northfield, MN Dakota and Rice Counties

Legend Development Limits Study Area Watersheds MN DNR Major Watershed Divides Streams Hydrologic Soil Groups A A/D B B/D C C/D D

째 Feet

1,000

2,000

Wetland Indicators North Development Site City of Northfield, MN Dakota and Rice Counties

Legend Streams Topographic Contours (2-ft Interval) Development Limits Wetland Indicators Poorly drained Somewhat poorly drained Very poorly drained Hydric Soils NWI Wetlands

째 Feet

1,000

2,000

Presettlement Land Cover North Development Site City of Northfield, MN Dakota and Rice Counties

Legend Study Area Watersheds Development Limits

Presettlement Vegetation (MN DNR) Aspen-Oak Land Big Woods - Hardwoods (oak, maple, basswood, hickory) Oak openings and barrens Prairie

째 Feet

1,000

2,000

Proposed Land Use North Development Site City of Northfield, MN Dakota and Rice Counties

Legend Development Limits Watershed Divides Streams Topographic Contours (2-ft Interval)

Proposed Land Use Commercial - Office Commercial - Retail Mixed-Use Multi-Family Residential (HDR) Multi-Family Residential (MDR) Open Space Public/Institutional Roadway Right-ofWay Industrial

째 Feet

1,000

2,000

Wetland Indicators South Development Site City of Northfield, MN Dakota and Rice Counties Legend Streams Topographic Contours (2-ft Interval) Development Limits Wetland Indicators Poorly drained Somewhat poorly drained Very poorly drained Hydric soils NWI Wetlands

째 Feet

1,000

2,000

Soil Conditions South Development Site City of Northfield, MN Dakota and Rice Counties

Legend Development Limits Study Area Watersheds MN DNR Major Watershed Divides Streams Hydrologic Soil Groups A A/D B B/D C C/D D

째 Feet

1,000

2,000

Proposed Land Use South Development Site City of Northfield, MN Dakota and Rice Counties

Legend Streams Watershed Divides Topographic Contours (2-ft Interval) Development Limits

Proposed Land Use Commercial - Office Commercial - Retail Multi-Family Residential Open Space Public/Institutional Single Family Residential Roadway Right-of-Way

째 Feet

1,000

2,000

Presettlement Land Cover South Development Site City of Northfield, MN Dakota and Rice Counties Legend Streams MN DNR Major Watershed Divides Study Area Watersheds Development Limits

Presettlement Vegetation (MN DNR) Aspen-Oak Land Big Woods - Hardwoods (oak, maple, basswood, hickory) Oak openings and barrens Prairie

째 Feet

1,000

2,000

UMore Park 1/27/2011

Wastewater Flow Estimates for North Development Area Updated: 8/13/2009

Land Use Classification Units SFR attached (medium density- townhomes) 250 MFR multi-story high density 120 Mixed Use (80% residential) 200 Mixed Use (20% commercial) Retail Commercial/Office Industrial/Light Industrial (30% office/70% warehouse) - Office - Warehouse/Assembly Civic/Institutional/Education (30% office/70% banquet) -Civic - Office -Civic - Banquet Total 570

Building Square Footage

115,000 140,000 1,222,000 670,500 1,564,500 33,000 77,000 3,822,000

Service Availibility Gallon Per Day Charge (SAC) Units Daily Flow (GPD) Requirement 274 GPD/ 1 Unit 250 68,500 274 GPD/ 1 Unit 120 32,880 274 GPD/ 1 Unit 200 54,800 274 GPD/ 3000 SF 38 10,503 274 GPD/ 3000 SF 47 12,787 274 GPD/ 2400 SF 509 139,512 274 GPD/ 2400 SF 0 0 274 GPD/ 2400 SF 279 76,549 274 GPD/ 7000 SF 224 61,239 274 GPD/ 274 GPD/

2400 SF 2060 SF

14 37 1,718

3,768 10,242 470,779

General Notes: Daily flow estimate is based on 100% return flow from water usage. Actual flows will be approximately 80% of daily flow estimate. Estimate that 70% of the wastwater generated is grey water.

MEMO

To: From: Subject:

Jeff McMenimen – Hoisington Koegler Group, Inc. Joe Samuel, PE Sanitary Sewer and Water Recommendations – Northfield Development North & South Sites

Date:

August 13, 2010

Extension of public sanitary sewer and watermain will be instrumental in developing the North and South Development Areas to the density and land uses identified in the “Preferred Parcel Plans”. The following summarizes schematic design of sewer and water for the North and South Development Areas:

North Development Area The North Development Area, which is located within the City of Northfield, can be served by City sanitary sewer and water from the east. City watermain and sanitary sewer is located within North Avenue (80th Street) right of way and is currently adjacent to the Northfield Hospital. The City is currently investigating the cost and feasibility of extending sanitary sewer and watermain to the eastern edge of the Sorem Property (eastern edge of North Development Area). As part of watermain extension, provisions should be made to loop the watermain with existing system. Within the North Development Area, schematic sanitary and watermain routing have been illustrated in sewer and watermain exhibits. Extension of these utilities will be dependent on development phasing but in general utilities will be extended from east to west as Phases 1-4 are developed. Based on the depth of the existing sanitary sewer on North Avenue and minimum slope/cover on sanitary sewer, lift stations will be required as part of the North Development Area improvements. The location of lift stations will be dependent on the overall development grading and plans to service properties outside of the North Development Area. Private grinder pumps or a low pressure sewer system may be an economical option to minimize lift station depth and/or maintenance costs while providing sewer service to land uses that are located at the outer edge of the development area or for development areas that are developed prior to municipal services being extended to a specific site. In addition, development of the North Area will require an elevated storage tank and potentially a booster station.

Offices in Illinois, Iowa, Minnesota, and Wisconsin 412 Hayward Avenue North, Oakdale, MN 55128 (651) 714-9600 (866) 452-9454 FAX: (651) 738-9655 WEB ADDRESS: www.msa-ps.com

M:\Northfield\009-PRO#-Northfield 3rd. Business Industrial Park\Project Ref File\Utilities\Me

Extension of sanitary sewer and watermain will benefit the North Development Area and complete looping of the City’s water system. In addition extension of these utilities may provide opportunities for growth/expansion beyond the current city limits. Based on land uses identified in Preferred Parcel Plan it is estimated that the North Development Area will generate approx 500,000 gallons per day of effluent. Estimated flow is based on conventional daily flows for specified land uses and does not take into consideration reduction in flows due to green technologies. For the purpose of this schematic analysis it is assumed that water demand equals effluent generated.

South Development Area The South Development Area is not currently within the City of Northfield city limits. The City is considering annexation of the property and development of the South Area will be dependent on successful annexation. Once the property is annexed it can be served by City sanitary sewer and water from the east. City watermain and sanitary sewer is located in close proximity to the site. Extension of sewer will require improvements/upgrades to the existing municipal system. City staff are currently looking at system upgrades independent of the South Development Area. Development of the South Area may accelerate the schedule of system upgrades. Within the South Development Area, schematic sanitary and watermain routing have been illustrated in sewer and watermain exhibits. Extension of these utilities will be dependent on development phasing but in general utilities will be extended from east to west as Phases 1-4 are developed. Watermain will be extended thru the site to provide a “looped” system for the overall City water system. Lift stations are not anticipated with development of the South Area as site topography rises from east to west. Consideration of private grinder pumps or a low pressure sewer system may be an economical option to provide sewer service to land uses that are located at the outer edge of the development area or for development areas that are developed prior to municipal services being extended to a specific site. In addition, low water pressures may be experienced in the west portion of the South Development Area. Analysis of water system will be required as develop progress and potentially a booster station may be needed to address low pressure issues. Extension of sanitary sewer and watermain will benefit the South Development Area and complete looping of the City’s water system. In addition extension of these utilities may provide opportunities for growth/expansion beyond the current city limits. Based on land uses identified in Preferred Parcel Plan it is estimated that the South Development Area will generate approx 300,000 gallons per day of effluent. Estimated flow is based on conventional daily flows for specified land uses and does not take into consideration reduction in flows due to green technologies. For the purpose of this schematic analysis it is assumed that water demand equals effluent generated.

Due to the projected timeline for development/ build-out of both the North and South Areas and the potential to implement ‘green’ techniques such as water conservation, wastewater reuse, and so forth, will require further evaluation of sewer and water flows through the development process. Analysis of anticipated flows will need to be evaluated incomparison to flows estimated in the Comprehensive Sewer and Water Studies completed in 2007 & 2006. The implementation of green technologies will provide an opportunity to reduce demand on the City sewer and water system.

Offices in Illinois, Iowa, Minnesota, and Wisconsin 412 Hayward Avenue North, Oakdale, MN 55128 (651) 714-9600 (866) 452-9454 FAX: (651) 738-9655 WEB ADDRESS: www.msa-ps.com

M:\Northfield\009-PRO#-Northfield 3rd. Business Industrial Park\Project Ref File\Utilities\Me

UMore Park 1/27/2011

Wastewater Flow Estimates for North Development Area Updated: 8/13/2009

Building Square Footage

115,000 140,000 1,222,000 670,500 1,564,500 33,000 77,000 3,822,000

2400 SF 2060 SF

14 37 1,718

3,768 10,242 470,779

MEMO

To: From: Subject: Date:

Jeff McMenimen – HKGI, Inc. Joe Samuel, PE Northfield Development – Conceptual Stormwater Analysis Summary September 16, 2010

Conceptual stormwater management plans have been developed for each of the two prospective development sites. The conceptual stormwater management plans were prepared to comply with MSA’s interpretation of the standards included in the City’s (draft) stormwater management ordinance. These standards are as follows: 1. Post development peak discharge rates for the development site must not exceed pre settlement rates for the 2 yr and 100 yr events. For purposes of this evaluation; post development discharge rates were evaluated and compared at all points where runoff exits the development site, as opposed to making a cumulative comparison of the total rate of runoff leaving the site. Additionally, comparisons were made at various discrete locations within public waters to ensure no increases were occurring within the site that may damage the character of the bed and bank of public waters within the property boundary. 2. Post development runoff must be treated to provide 90% TSS and 60% TP reductions. As is discussed later under ‘Additional Considerations’ portion of this memo, it is our opinion that the ordinance is geared toward implementation of wet detention ponds. As a result, the principal water quality treatment devices included in the concept designs are wet detention ponds. Additional discussion is provided regarding alternative management practices and how this standard might be met using such practices if additional leeway is granted under the City’s stormwater management ordinance. 3. Post development infiltration practices must be specified which infiltrate 0.75 inches of runoff from impervious surfaces. Offices in Illinois, Iowa, Minnesota, and Wisconsin 412 Hayward Avenue North, Oakdale, MN 55128 (651) 714-9600 (866) 452-9454 FAX: (651) 738-9655 WEB ADDRESS: www.msa-ps.com

P:\10500s\10540s\10540\10540004\Documents\Correspondence\Northfield_SWMP_Summ

Our analysis assumes that this is a requirement that infiltration BMPs provide this cumulative minimum volume, and that this does not reflect an annual, or event based criteria. It is also assumed that this is not watershed or drainage direction specific, merely a total for the overall site. For this evaluation it was further assumed that infiltration practices need to drain completely dry (as measured from the lowest invert of a surface discharge point to the bottom of the above ground infiltration storage area) within 24 hours. Given that the majorities of the soils within the development sites are classified as belonging to hydrologic soil group B and can be assigned an infiltration rate of 0.25 inches per hour, the maximum ponding depth of infiltration facilities is six inches. 4. Post development infiltration practices must be specified for developments within Rice Creek watershed such that post development runoff volumes for the 2 yr event do not exceed existing conditions runoff volumes for the 2 yr event. For this evaluation it was assumed that existing conditions means, actual current land use conditions and not pre settlement conditions, as the distinction between these development conditions is made clear in other areas where land use conditions are described. Note that for the modeling conducted to determine this assessment only the runoff curve numbers were modified from the pre settlement hydrologic model so that runoff volumes could be compared. In actuality, the subwatershed times of concentration should also be modified to determine actual runoff rates; however as this has no bearing on runoff volume it was unnecessary for this study.

Methodology The computer model HydroCAD 7.1 was used to prepare stormwater management calculations for pre development and proposed development conditions. HydroCAD uses the TR 55, â&#x20AC;&#x2DC;Urban Hydrology for Small Watershedsâ&#x20AC;&#x2122; (USDA, 1986) methodology of calculating runoff volumes and routing operations.

In addition to a rainfall data record to be used to similar runoff conditions; TR 55 requires three primary input parameters which can be used to determine peak discharge rates and runoff volumes from a particular rainfall event. These parameters describe the runoff characteristics of a watershed and include drainage area, runoff curve number, and time of concentration. The model uses these input parameters to translate a rainfall hyetograph (distribution of rainfall depth over time) to a runoff hydrograph which the model then routes through a system of management devices to determine the effect on peak runoff rates and flood elevations. Finally it is necessary to define the geometry (storage volume, outlet configuration, infiltration capacity) of existing and proposed drainage and stormwater management infrastructure so that Offices in Illinois, Iowa, Minnesota, and Wisconsin 412 Hayward Avenue North, Oakdale, MN 55128 (651) 714-9600 (866) 452-9454 FAX: (651) 738-9655 WEB ADDRESS: www.msa-ps.com

P:\10500s\10540s\10540\10540004\Documents\Correspondence\Northfield_SWMP_Summ

the model can route runoff hydrographs through the system so that discharge rates and volumes can be determined. This memo will not go into detail describing the various model input and output data that were developed for the evaluation; rather the reader is referred to the attached maps, tables, and model input and output which provides all the details necessary to describe the drainage system.

Conceptual Stormwater Management Practices for Northern Development Site The northern site is approximately 524+ acres in size and, for this concept design, will be served by four regional stormwater management facilities consisting of paired wet detention and infiltration basins. The stormwater facilities serving the north central portion of the site would best be described as a greenway as it will occupy a natural low area and, in addition to providing stormwater management it will be a principal conveyance for storm and flood waters as well. There will be 12 individual basins within the site, seven wet ponds and five infiltration basins. A total area of 40.1 acres of land will be occupied by stormwater management facilities which represents approximately 7.6% of the project site â&#x20AC;&#x201C; this does not including an area that appears to be land locked (floodplain) on the south central portion of the site. Further analysis and confirmation of an existing culvert will be necessary as development plans progress. In addition, at this level of design the analysis approach is conservative and does not take into consideration low impact development practices that could be implemented on individual sites. A sketch of the conceptual stormwater management plan for the Northern Development area is included with this document. Considerations for Northern Development Site From a strict post development stormwater management perspective, the northern site is more challenging to develop than the southern site even when considering the additional stormwater management requirements for the Rice Creek Watershed which affect the southern development site. The two principal development challenges for the northern site are: 1. Presence of hydric soils and wetland indicators. Field delineation of wetlands may result in buffer protection areas and potential reduce development areas. The presence of wetland is indicative of at least seasonally high groundwater which impacts infiltration capabilities. High groundwater condition will either result in the site being non compliant with the infiltration performance standard outlined in the Cityâ&#x20AC;&#x2122;s ordinance, or Offices in Illinois, Iowa, Minnesota, and Wisconsin 412 Hayward Avenue North, Oakdale, MN 55128 (651) 714-9600 (866) 452-9454 FAX: (651) 738-9655 WEB ADDRESS: www.msa-ps.com

P:\10500s\10540s\10540\10540004\Documents\Correspondence\Northfield_SWMP_Summ

large infiltration areas (the allowable ponding depth will need to be very small, much less than the assumed allowable six inches reflected in the concept design) will be required and thus limiting development density. 2. Based on investigation of field conditions, it does not appear that there is an outlet for the southern portion of the north site. The absence of an outlet creates a large low area or floodplain (estimated at 22 acres) on the post development site. Creation of a floodplain may impact development density and require additional analysis of site grading, stormwater management (water quality/infiltration) and impacts of downstream areas. Additionally, if there is no existing outlet the area is most likely covered with wetland indicators and is likely principally wetland; there may be wetland conservation issues associated with this area of the site and further analysis is warranted.

Conceptual Stormwater Management Practices for Southern Development Site The southern site is approximately 546+ acres in size and, for this concept design, will be served by six regional stormwater management facilities consisting of paired wet detention and infiltration basins. There will be 15 individual basins within the site, nine wet ponds and six infiltration basins. A total area of 38.2 acres of land will be occupied by stormwater management facilities which, despite its comparably less dense development plan in comparison to the northern site, still represent nearly 7.0% of the project site. The actual amount of land required to construct and maintain the stormwater facilities is expected to be approximately 20% larger, due to topographic features of the southern site; the resulting area for stormwater management is approximately 8.4% of the project site. A sketch of the conceptual stormwater management plan is included with this document.

Considerations for Southern Development Site The only real significant challenges associated with the southern development site have to do with topography and the large elevation changes across individual subwatersheds. Regardless, the proposed stormwater management facilities can be accommodate within the allocated green spaces. Site topography will probably result in the need for as much as 20% more stormwater management is currently identified on the conceptual plan. Further refinement of stormwater management will be necessary as development plans progress and site topography is verified.

Offices in Illinois, Iowa, Minnesota, and Wisconsin 412 Hayward Avenue North, Oakdale, MN 55128 (651) 714-9600 (866) 452-9454 FAX: (651) 738-9655 WEB ADDRESS: www.msa-ps.com

P:\10500s\10540s\10540\10540004\Documents\Correspondence\Northfield_SWMP_Summ

Additional Development Consideration for Both Sites: A. Soil Testing for Infiltration Capacity. Soil testing should be conducted to verify infiltration rates and assumptions used during master planning. The infiltration rates allowed by the ordinance (0.25 in/hr for type B soils, for example) are fairly liberal based soil conditions that may be encountered on site. Furthermore, the draft ordinance requires infiltration in all cases; there are many physical conditions which can make infiltration impractical. In areas with ‘tighter’ soils (less than the typical ‘type B’ infiltration rate), the infiltration practices need to have a larger footprint to drain dry in an acceptable time period. Additionally, in areas where there is high groundwater infiltration will not work. The City’s draft ordinance should address stormwater management requirements in development areas where infiltration may not be feasible. B. Source Area Water Quality Assessments. The City’s stormwater ordinance does not quantify a “benchmark from which to evaluate TSS reduction when evaluating ‘conservation’ or ‘LID’ designs for compliance with the stormwater management standards. This is to say that it doesn’t matter how much load is actually generated in the watershed or how much is actually discharged from the site; rather there is only a standard to reduce the amount that is delivered to the final structural BMP load (whatever it may be) by 90%. The ordinance specifies a design standard and requirement to achieve 90% TSS reduction. Rather the ordinance should provide the ability to evaluate TSS reduction between the originally pollutant source area and the point of discharge from the site, it is difficult to comply with the ordinance using alternative stormwater management practices, such as those which might be described as green or low impact. C. Credit for Disconnection of Impervious Surfaces. Consideration should be given towards exploring alternative standards for development approval in the City’s ordinance. As previously mentioned focusing on ‘end of the pipe’ management allows (almost) no credit for green land use practices such as disconnecting impervious area, pervious pavement, swale collection systems etc. Some credit can be realized in the reduction of rate control facilities as it is easy enough to quantify the reduction in volume resulting from these practices, but there is no accommodation for infiltration or water quality treatment benefits from these practices. The examples below address the benefit of disconnected impervious surfaces: Offices in Illinois, Iowa, Minnesota, and Wisconsin 412 Hayward Avenue North, Oakdale, MN 55128 (651) 714-9600 (866) 452-9454 FAX: (651) 738-9655 WEB ADDRESS: www.msa-ps.com

P:\10500s\10540s\10540\10540004\Documents\Correspondence\Northfield_SWMP_Summ

Example 1: one acre (1) of commercial roof A commercial roof directly connected to the drainage system produces 80,221 cf of runoff and 165 lbs of sediment annually. If the commercial roof was disconnected, or indirectly connected, it would produce only 6,277 cf of runoff and 13 lbs of sediment annually – this is a 92% reduction of both parameters Example 2: one acre (1) of commercial parking/driveway A commercial parking lot/driveway directly connected to the drainage system produces 75,906 cf of runoff and 615 lbs of sediment annually If the commercial parking lot/driveway was disconnected, or indirectly connected, it would produce only 6,277 cf of runoff and 51 lbs of sediment annually – similarly, a 92% reduction of both parameters Disconnection of impervious area (from non residential developments) has the capacity to meet the City’s water quality treatment requirements without a constructed BMP. Note, the numbers cited above were generated using the WinSLAMM computer model which is an accounting model based on recent empirical data from states in the Upper Midwest.

If methods for source area assessments and the effects of un or indirectly connected impervious areas are allowed under the draft stormwater management ordinance, then there is great potential for alternative stormwater management practices for either site. If volume reduction credit is given for the difference in potential runoff volumes from disconnected and connected impervious areas, along with water quality treatment (TSS reduction), then this could eliminate the need for traditional wet ponds in favor of dry ponds which function primarily as peak rate/flood control devices which could then take on characteristics of native prairie or wetland restoration adding further green, or ‘low impact’ development characteristics. This approach would greatly assist in addressing concerns regarding improved water quality within the Rice Creek Watershed.

Offices in Illinois, Iowa, Minnesota, and Wisconsin 412 Hayward Avenue North, Oakdale, MN 55128 (651) 714-9600 (866) 452-9454 FAX: (651) 738-9655 WEB ADDRESS: www.msa-ps.com

P:\10500s\10540s\10540\10540004\Documents\Correspondence\Northfield_SWMP_Summ

NORTH DEVELOPMENT AREA EXHIBITS & CALCULATIONS

Legend Development Limits Study Area Watersheds MN DNR Major Watershed Divides Streams Hydrologic Soil Groups A A/D B B/D C C/D D

l Feet

1,000

2,000

Legend Development Limits Watershed Divides Streams Topographic Contours (2-ft Interval)

Proposed Land Use Commercial - Office Commercial - Retail Mixed-Use Multi-Family Residential (HDR) Multi-Family Residential (MDR) Open Space Public/Institutional Roadway Right-ofWay Industrial

l Feet

1,000

2,000

Legend Study Area Watersheds Development Limits

Presettlement Vegetation (MN DNR) Aspen-Oak Land Big Woods - Hardwoods (oak, maple, basswood, hickory) Oak openings and barrens Prairie

l Feet

1,000

2,000

! " "

Legend Streams Topographic Contours (2-ft Interval) MN DNR Major Watershed Divides Study Area Watersheds Development Limits

l Feet

1,000

2,000

# $

Legend Streams Topographic Contours (2-ft Interval) Development Limits Wetland Indicators Poorly drained Somewhat poorly drained Very poorly drained Hydric Soils NWI Wetlands

l Feet

1,000

2,000

Mud-1

103-I Mud-2

103-P Mud-3

109

I-103

P-103

P-108.2

I-105

108.2-P

107-P

108.2-I

P-105

105-P Unnamed-1

105-I 107-I 108.1-P

106-P

I-106

I-107

P-108.1

108.1-I

106-I

Mud-4

P-107

P-106

107-R

101-I

102

110-P

I-110

101-P

104 P-101

P-110

Subcat

Reach

Pond

Link

110-I

Type II 24-hr 2-yr Rainfall=2.80"

North_Presettlement

Page 1 8/27/2010

Time span=0.00-168.00 hrs, dt=0.01 hrs, 16801 points Runoff by SCS TR-20 method, UH=SCS Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment 101:

Runoff Area=158.020 ac Runoff Depth=0.14" Flow Length=2,625' Tc=97.1 min CN=55 Runoff=3.24 cfs 1.908 af

Subcatchment 102:

Runoff Area=7.150 ac Runoff Depth=0.14" Flow Length=885' Tc=42.1 min CN=55 Runoff=0.19 cfs 0.086 af

Subcatchment 103:

Runoff Area=11.950 ac Runoff Depth=0.14" Flow Length=1,010' Tc=33.1 min CN=55 Runoff=0.34 cfs 0.144 af

Subcatchment 104:

Runoff Area=3.470 ac Runoff Depth=0.14" Flow Length=470' Tc=41.5 min CN=55 Runoff=0.09 cfs 0.042 af

Subcatchment 105:

Runoff Area=77.900 ac Runoff Depth=0.14" Flow Length=1,825' Tc=76.5 min CN=55 Runoff=1.73 cfs 0.941 af

Subcatchment 106:

Runoff Area=9.670 ac Runoff Depth=0.14" Flow Length=1,080' Tc=53.0 min CN=55 Runoff=0.24 cfs 0.117 af

Subcatchment 107:

Runoff Area=104.640 ac Runoff Depth=0.14" Flow Length=2,090' Tc=50.4 min CN=55 Runoff=2.61 cfs 1.263 af

Subcatchment 108:

Runoff Area=24.600 ac Runoff Depth=0.14" Flow Length=2,225' Tc=89.7 min CN=55 Runoff=0.52 cfs 0.297 af

Subcatchment 109:

Runoff Area=12.310 ac Runoff Depth=0.14" Flow Length=825' Tc=36.7 min CN=55 Runoff=0.34 cfs 0.149 af

Subcatchment 110:

Runoff Area=137.540 ac Runoff Depth=0.14" Flow Length=3,400' Tc=103.9 min CN=55 Runoff=2.73 cfs 1.661 af

Reach 107-R:

Inflow=0.19 cfs 0.086 af Outflow=0.19 cfs 0.086 af

Reach 110-R:

Inflow=0.76 cfs 0.446 af Outflow=0.76 cfs 0.446 af

Reach Mud-1:

Inflow=5.53 cfs 3.308 af Outflow=5.53 cfs 3.308 af

Reach Mud-2:

Inflow=5.30 cfs 3.164 af Outflow=5.30 cfs 3.164 af

Reach Mud-3:

Inflow=1.95 cfs 1.057 af Outflow=1.95 cfs 1.057 af

Type II 24-hr 2-yr Rainfall=2.80"

Page 2 8/27/2010

Reach Mud-4:

Inflow=1.73 cfs 0.941 af Outflow=1.73 cfs 0.941 af

Reach Unnamed-1:

Inflow=2.80 cfs 1.350 af Outflow=2.80 cfs 1.350 af

Pond P-101:

Peak Elev=992.52' Storage=1.189 af Inflow=3.30 cfs 1.950 af Outflow=0.83 cfs 1.950 af

Total Runoff Area = 547.250 ac Runoff Volume = 6.608 af Average Runoff Depth = 0.14"

Type II 24-hr 2-yr Rainfall=2.80"

Page 3 8/27/2010

Subcatchment 101: Runoff

3.24 cfs @ 13.92 hrs, Volume=

1.908 af, Depth= 0.14"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 158.020

CN 55

Description Big Woods (HSG B)

Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 24.4 100 0.0171 0.1 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 72.7 2,525 0.0134 0.6 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 97.1 2,625 Total

Subcatchment 102: Runoff

0.19 cfs @ 12.82 hrs, Volume=

0.086 af, Depth= 0.14"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 7.150

CN 55

Description Big Woods (HSG B)

Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 22.1 100 0.0219 0.1 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 20.0 785 0.0171 0.7 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 42.1 885 Total

Subcatchment 103: Runoff

0.34 cfs @ 12.65 hrs, Volume=

0.144 af, Depth= 0.14"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 11.950

CN 55

Description Aspen-Oak Land (HSG B)

Type II 24-hr 2-yr Rainfall=2.80"

Page 4 8/27/2010

Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.4 100 0.0769 0.1 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 19.7 910 0.0237 0.8 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 33.1 1,010 Total

Subcatchment 104: Runoff

0.09 cfs @ 12.78 hrs, Volume=

0.042 af, Depth= 0.14"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 3.470

CN 55

Description Big Woods (HSG B)

Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 22.9 100 0.0201 0.1 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 18.6 370 0.0044 0.3 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 41.5 470 Total

Subcatchment 105: Runoff

1.73 cfs @ 13.51 hrs, Volume=

0.941 af, Depth= 0.14"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 62.820 15.080 77.900

CN 55 55 55

Description Big Woods (HSG B) Oak Openings & Barrens (HSG B) Weighted Average

Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 33.5 100 0.0078 0.0 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 43.0 1,725 0.0179 0.7 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 76.5 1,825 Total

Type II 24-hr 2-yr Rainfall=2.80"

Page 5 8/27/2010

Subcatchment 106: Runoff

0.24 cfs @ 13.02 hrs, Volume=

0.117 af, Depth= 0.14"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 9.670

CN 55

Description Oak Openings & Barrens (HSG B)

Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 23.5 100 0.0189 0.1 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 29.5 980 0.0123 0.6 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 53.0 1,080 Total

Subcatchment 107: Runoff

2.61 cfs @ 12.99 hrs, Volume=

1.263 af, Depth= 0.14"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 59.060 45.580 104.640

CN 55 55 55

Description Big Woods (HSG B) Aspen-Oak Land (HSG B) Weighted Average

Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 19.7 100 0.0294 0.1 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 30.7 1,990 0.0468 1.1 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 50.4 2,090 Total

Subcatchment 108: Runoff

0.52 cfs @ 13.75 hrs, Volume=

0.297 af, Depth= 0.14"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 19.690 4.910 24.600

CN 55 55 55

Description Aspen-Oak Land (HSG B) Big Woods (HSG B) Weighted Average

Type II 24-hr 2-yr Rainfall=2.80"

Page 6 8/27/2010

Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 18.9 100 0.0325 0.1 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 70.8 2,125 0.0100 0.5 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 89.7 2,225 Total

Subcatchment 109: Runoff

0.34 cfs @ 12.72 hrs, Volume=

0.149 af, Depth= 0.14"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 12.310

CN 55

Description Aspen-Oak Land (HSG B)

Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 19.8 100 0.0288 0.1 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 16.9 725 0.0205 0.7 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 36.7 825 Total

Subcatchment 110: Runoff

2.73 cfs @ 13.98 hrs, Volume=

1.661 af, Depth= 0.14"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 3.350 80.820 47.240 6.130 137.540

CN 35 55 55 55 55

Description Aspen-Oak Land (HSG A) Aspen-Oak Land (HSG B) Big Woods (HSG B) Oak Openings & Barrens (HSG B) Weighted Average

Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 19.0 100 0.0319 0.1 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 84.9 3,300 0.0168 0.6 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 103.9 3,400 Total

Type II 24-hr 2-yr Rainfall=2.80"

Page 7 8/27/2010

Reach 107-R: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

7.150 ac, Inflow Depth = 0.14" for 2-yr event 0.19 cfs @ 12.82 hrs, Volume= 0.086 af 0.19 cfs @ 12.82 hrs, Volume= 0.086 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs

Reach 110-R: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

36.910 ac, Inflow Depth = 0.14" for 2-yr event 0.76 cfs @ 13.65 hrs, Volume= 0.446 af 0.76 cfs @ 13.65 hrs, Volume= 0.446 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs

Reach Mud-1: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

273.970 ac, Inflow Depth = 0.14" for 2-yr event 5.53 cfs @ 13.85 hrs, Volume= 3.308 af 5.53 cfs @ 13.85 hrs, Volume= 3.308 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs

Reach Mud-2: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

262.020 ac, Inflow Depth = 0.14" for 2-yr event 5.30 cfs @ 13.85 hrs, Volume= 3.164 af 5.30 cfs @ 13.85 hrs, Volume= 3.164 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs

Reach Mud-3: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

87.570 ac, Inflow Depth = 0.14" for 2-yr event 1.95 cfs @ 13.43 hrs, Volume= 1.057 af 1.95 cfs @ 13.43 hrs, Volume= 1.057 af, Atten= 0%, Lag= 0.0 min

Type II 24-hr 2-yr Rainfall=2.80"

Page 8 8/27/2010

Routing by Stor-Ind+Trans method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs

Reach Mud-4: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

77.900 ac, Inflow Depth = 0.14" for 2-yr event 1.73 cfs @ 13.51 hrs, Volume= 0.941 af 1.73 cfs @ 13.51 hrs, Volume= 0.941 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs

Reach Unnamed-1: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

111.790 ac, Inflow Depth = 0.14" for 2-yr event 2.80 cfs @ 12.94 hrs, Volume= 1.350 af 2.80 cfs @ 12.94 hrs, Volume= 1.350 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs

Pond P-101: Inflow Area = Inflow = Outflow = Discarded =

161.490 ac, Inflow Depth = 0.14" for 2-yr event 3.30 cfs @ 13.91 hrs, Volume= 1.950 af 0.83 cfs @ 25.06 hrs, Volume= 1.950 af, Atten= 75%, Lag= 668.6 min 0.83 cfs @ 25.06 hrs, Volume= 1.950 af

Routing by Stor-Ind method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Peak Elev= 992.52' @ 25.06 hrs Surf.Area= 3.302 ac Storage= 1.189 af Plug-Flow detention time= 724.3 min calculated for 1.950 af (100% of inflow) Center-of-Mass det. time= 724.2 min ( 1,799.8 - 1,075.6 ) Volume #1

Invert 992.00'

Elevation (feet) 992.00 994.00 996.00 Device #1

Avail.Storage 41.110 af

Surf.Area (acres) 1.300 9.050 21.710

Routing Discarded

Invert 0.00'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 10.350 30.760

Cum.Store (acre-feet) 0.000 10.350 41.110

Outlet Devices 0.250 in/hr Exfiltration - HSG B soils over Surface area

Discarded OutFlow Max=0.83 cfs @ 25.06 hrs HW=992.52' (Free Discharge) 1=Exfiltration - HSG B soils (Exfiltration Controls 0.83 cfs)

Type II 24-hr 100-yr Rainfall=6.10"

North_Presettlement

Page 9 8/27/2010

Time span=0.00-168.00 hrs, dt=0.01 hrs, 16801 points Runoff by SCS TR-20 method, UH=SCS Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment 101:

Runoff Area=158.020 ac Runoff Depth=1.58" Flow Length=2,625' Tc=97.1 min CN=55 Runoff=79.49 cfs 20.748 af

Subcatchment 102:

Runoff Area=7.150 ac Runoff Depth=1.58" Flow Length=885' Tc=42.1 min CN=55 Runoff=6.67 cfs 0.939 af

Subcatchment 103:

Runoff Area=11.950 ac Runoff Depth=1.58" Flow Length=1,010' Tc=33.1 min CN=55 Runoff=13.33 cfs 1.569 af

Subcatchment 104:

Runoff Area=3.470 ac Runoff Depth=1.58" Flow Length=470' Tc=41.5 min CN=55 Runoff=3.27 cfs 0.456 af

Subcatchment 105:

Runoff Area=77.900 ac Runoff Depth=1.58" Flow Length=1,825' Tc=76.5 min CN=55 Runoff=46.54 cfs 10.228 af

Subcatchment 106:

Runoff Area=9.670 ac Runoff Depth=1.58" Flow Length=1,080' Tc=53.0 min CN=55 Runoff=7.61 cfs 1.270 af

Subcatchment 107:

Runoff Area=104.640 ac Runoff Depth=1.58" Flow Length=2,090' Tc=50.4 min CN=55 Runoff=85.56 cfs 13.739 af

Subcatchment 108:

Runoff Area=24.600 ac Runoff Depth=1.58" Flow Length=2,225' Tc=89.7 min CN=55 Runoff=13.07 cfs 3.230 af

Subcatchment 109:

Runoff Area=12.310 ac Runoff Depth=1.58" Flow Length=825' Tc=36.7 min CN=55 Runoff=12.73 cfs 1.616 af

Subcatchment 110:

Runoff Area=137.540 ac Runoff Depth=1.58" Flow Length=3,400' Tc=103.9 min CN=55 Runoff=65.79 cfs 18.059 af

Reach 107-R:

Inflow=6.67 cfs 0.939 af Outflow=6.67 cfs 0.939 af

Reach 110-R:

Inflow=17.56 cfs 4.846 af Outflow=17.56 cfs 4.846 af

Reach Mud-1:

Inflow=131.89 cfs 35.972 af Outflow=131.89 cfs 35.972 af

Reach Mud-2:

Inflow=128.30 cfs 34.403 af Outflow=128.30 cfs 34.403 af

Reach Mud-3:

Inflow=52.41 cfs 11.498 af Outflow=52.41 cfs 11.498 af

Type II 24-hr 100-yr Rainfall=6.10"

Page 10 8/27/2010

Reach Mud-4:

Inflow=46.54 cfs 10.228 af Outflow=46.54 cfs 10.228 af

Reach Unnamed-1:

Inflow=91.84 cfs 14.678 af Outflow=91.84 cfs 14.678 af

Pond P-101:

Peak Elev=994.68' Storage=17.980 af Inflow=80.48 cfs 21.204 af Outflow=3.37 cfs 21.203 af

Total Runoff Area = 547.250 ac Runoff Volume = 71.853 af Average Runoff Depth = 1.58"

Type II 24-hr 100-yr Rainfall=6.10"

Page 11 8/27/2010

Subcatchment 101: Runoff

79.49 cfs @ 13.27 hrs, Volume=

20.748 af, Depth= 1.58"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 158.020

CN 55

Description Big Woods (HSG B)

Subcatchment 102: Runoff

6.67 cfs @ 12.44 hrs, Volume=

0.939 af, Depth= 1.58"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 7.150

CN 55

Description Big Woods (HSG B)

Subcatchment 103: Runoff

13.33 cfs @ 12.32 hrs, Volume=

1.569 af, Depth= 1.58"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 11.950

CN 55

Description Aspen-Oak Land (HSG B)

Type II 24-hr 100-yr Rainfall=6.10"

Page 12 8/27/2010

Subcatchment 104: Runoff

3.27 cfs @ 12.41 hrs, Volume=

0.456 af, Depth= 1.58"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 3.470

CN 55

Description Big Woods (HSG B)

Subcatchment 105: Runoff

46.54 cfs @ 12.92 hrs, Volume=

10.228 af, Depth= 1.58"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 62.820 15.080 77.900

CN 55 55 55

Description Big Woods (HSG B) Oak Openings & Barrens (HSG B) Weighted Average

Type II 24-hr 100-yr Rainfall=6.10"

Page 13 8/27/2010

Subcatchment 106: Runoff

7.61 cfs @ 12.60 hrs, Volume=

1.270 af, Depth= 1.58"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 9.670

CN 55

Description Oak Openings & Barrens (HSG B)

Subcatchment 107: Runoff

85.56 cfs @ 12.55 hrs, Volume=

13.739 af, Depth= 1.58"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 59.060 45.580 104.640

CN 55 55 55

Description Big Woods (HSG B) Aspen-Oak Land (HSG B) Weighted Average

Subcatchment 108: Runoff

13.07 cfs @ 13.06 hrs, Volume=

3.230 af, Depth= 1.58"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 19.690 4.910 24.600

CN 55 55 55

Description Aspen-Oak Land (HSG B) Big Woods (HSG B) Weighted Average

Type II 24-hr 100-yr Rainfall=6.10"

Page 14 8/27/2010

Subcatchment 109: Runoff

12.73 cfs @ 12.36 hrs, Volume=

1.616 af, Depth= 1.58"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 12.310

CN 55

Description Aspen-Oak Land (HSG B)

Subcatchment 110: Runoff

65.79 cfs @ 13.28 hrs, Volume=

18.059 af, Depth= 1.58"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 3.350 80.820 47.240 6.130 137.540

CN 35 55 55 55 55

Description Aspen-Oak Land (HSG A) Aspen-Oak Land (HSG B) Big Woods (HSG B) Oak Openings & Barrens (HSG B) Weighted Average

Type II 24-hr 100-yr Rainfall=6.10"

Page 15 8/27/2010

Reach 107-R: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

7.150 ac, Inflow Depth = 1.58" for 100-yr event 6.67 cfs @ 12.44 hrs, Volume= 0.939 af 6.67 cfs @ 12.44 hrs, Volume= 0.939 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs

Reach 110-R: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

36.910 ac, Inflow Depth = 1.58" for 100-yr event 17.56 cfs @ 12.86 hrs, Volume= 4.846 af 17.56 cfs @ 12.86 hrs, Volume= 4.846 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs

Reach Mud-1: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

273.970 ac, Inflow Depth = 1.58" for 100-yr event 131.89 cfs @ 13.05 hrs, Volume= 35.972 af 131.89 cfs @ 13.05 hrs, Volume= 35.972 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs

Reach Mud-2: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

262.020 ac, Inflow Depth = 1.58" for 100-yr event 128.30 cfs @ 13.06 hrs, Volume= 34.403 af 128.30 cfs @ 13.06 hrs, Volume= 34.403 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs

Reach Mud-3: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

87.570 ac, Inflow Depth = 1.58" for 100-yr event 52.41 cfs @ 12.84 hrs, Volume= 11.498 af 52.41 cfs @ 12.84 hrs, Volume= 11.498 af, Atten= 0%, Lag= 0.0 min

Type II 24-hr 100-yr Rainfall=6.10"

Page 16 8/27/2010

Routing by Stor-Ind+Trans method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs

Reach Mud-4: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

77.900 ac, Inflow Depth = 1.58" for 100-yr event 46.54 cfs @ 12.92 hrs, Volume= 10.228 af 46.54 cfs @ 12.92 hrs, Volume= 10.228 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs

Reach Unnamed-1: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

111.790 ac, Inflow Depth = 1.58" for 100-yr event 91.84 cfs @ 12.55 hrs, Volume= 14.678 af 91.84 cfs @ 12.55 hrs, Volume= 14.678 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs

Pond P-101: Inflow Area = Inflow = Outflow = Discarded =

161.490 ac, Inflow Depth = 1.58" for 100-yr event 80.48 cfs @ 13.27 hrs, Volume= 21.204 af 3.37 cfs @ 25.33 hrs, Volume= 21.203 af, Atten= 96%, Lag= 723.7 min 3.37 cfs @ 25.33 hrs, Volume= 21.203 af

Routing by Stor-Ind method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Peak Elev= 994.68' @ 25.33 hrs Surf.Area= 13.361 ac Storage= 17.980 af Plug-Flow detention time= 2,890.3 min calculated for 21.202 af (100% of inflow) Center-of-Mass det. time= 2,890.6 min ( 3,847.0 - 956.3 ) Volume #1

Invert 992.00'

Elevation (feet) 992.00 994.00 996.00 Device #1

Avail.Storage 41.110 af

Surf.Area (acres) 1.300 9.050 21.710

Routing Discarded

Invert 0.00'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 10.350 30.760

Cum.Store (acre-feet) 0.000 10.350 41.110

Outlet Devices 0.250 in/hr Exfiltration - HSG B soils over Surface area

Discarded OutFlow Max=3.37 cfs @ 25.33 hrs HW=994.68' (Free Discharge) 1=Exfiltration - HSG B soils (Exfiltration Controls 3.37 cfs)

Mud-1

103 Mud-2

Mud-3

110-R

106

109

108

Unnamed-1

110 107

107-R

Mud-4

105 102 101 104 P-101

Subcat

Reach

Pond

Link

Type II 24-hr 2-yr Rainfall=2.80"

Page 1 8/27/2010

Time span=0.00-168.00 hrs, dt=0.01 hrs, 16801 points Runoff by SCS TR-20 method, UH=SCS Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment 101-I:

Subcatchment 101-P:

Subcatchment 102:

Runoff Area=68.440 ac Runoff Depth=2.57" Tc=10.0 min CN=98 Runoff=237.85 cfs 14.653 af Runoff Area=85.910 ac Runoff Depth=0.29" Tc=20.0 min CN=61 Runoff=14.59 cfs 2.093 af Runoff Area=7.150 ac Runoff Depth=0.14" Flow Length=885' Tc=42.1 min CN=55 Runoff=0.19 cfs 0.086 af

Subcatchment 103-I:

Runoff Area=28.200 ac Runoff Depth=2.57" Tc=10.0 min CN=98 Runoff=98.00 cfs 6.038 af

Subcatchment 103-P:

Runoff Area=22.140 ac Runoff Depth=0.26" Tc=20.0 min CN=60 Runoff=3.07 cfs 0.488 af

Subcatchment 104:

Runoff Area=3.470 ac Runoff Depth=0.14" Flow Length=470' Tc=41.5 min CN=55 Runoff=0.09 cfs 0.042 af

Subcatchment 105-I:

Runoff Area=21.690 ac Runoff Depth=2.57" Tc=10.0 min CN=98 Runoff=75.38 cfs 4.644 af

Subcatchment 105-P:

Runoff Area=23.430 ac Runoff Depth=0.21" Tc=20.0 min CN=58 Runoff=2.00 cfs 0.415 af

Subcatchment 106-I:

Subcatchment 106-P:

Subcatchment 107-I:

Runoff Area=41.110 ac Runoff Depth=2.57" Tc=10.0 min CN=98 Runoff=142.87 cfs 8.802 af Runoff Area=32.950 ac Runoff Depth=0.29" Tc=20.0 min CN=61 Runoff=5.59 cfs 0.803 af Runoff Area=65.370 ac Runoff Depth=2.57" Tc=10.0 min CN=98 Runoff=227.18 cfs 13.995 af

Subcatchment 107-P:

Runoff Area=53.740 ac Runoff Depth=0.29" Tc=20.0 min CN=61 Runoff=9.12 cfs 1.310 af

Subcatchment 108.1-I:

Runoff Area=13.780 ac Runoff Depth=2.57" Tc=10.0 min CN=98 Runoff=47.89 cfs 2.950 af

Subcatchment 108.1-P:

Runoff Area=9.050 ac Runoff Depth=0.29" Tc=20.0 min CN=61 Runoff=1.54 cfs 0.221 af

Subcatchment 108.2-I:

Runoff Area=9.180 ac Runoff Depth=2.57" Tc=10.0 min CN=98 Runoff=31.90 cfs 1.965 af

Type II 24-hr 2-yr Rainfall=2.80"

Subcatchment 108.2-P:

Page 2 8/27/2010

Runoff Area=6.030 ac Runoff Depth=0.29" Tc=20.0 min CN=61 Runoff=1.02 cfs 0.147 af Runoff Area=12.310 ac Runoff Depth=0.14" Flow Length=825' Tc=36.7 min CN=55 Runoff=0.34 cfs 0.149 af

Subcatchment 109:

Subcatchment 110-I:

Runoff Area=23.950 ac Runoff Depth=2.57" Tc=10.0 min CN=98 Runoff=83.23 cfs 5.128 af

Subcatchment 110-P:

Runoff Area=19.380 ac Runoff Depth=0.29" Tc=20.0 min CN=61 Runoff=3.29 cfs 0.472 af

Reach 107-R:

Inflow=0.19 cfs 0.086 af Outflow=0.19 cfs 0.086 af

Reach Mud-1:

Inflow=21.27 cfs 14.289 af Outflow=21.27 cfs 14.289 af

Reach Mud-2:

Inflow=21.27 cfs 14.289 af Outflow=21.27 cfs 14.289 af

Reach Mud-3:

Inflow=9.65 cfs 5.473 af Outflow=9.65 cfs 5.473 af

Reach Mud-4:

Inflow=0.57 cfs 0.198 af Outflow=0.57 cfs 0.198 af

Reach Unnamed-1:

Inflow=13.63 cfs 4.735 af Outflow=13.63 cfs 4.735 af

Pond I-103:

Peak Elev=1,000.60' Storage=2.117 af Inflow=15.30 cfs 6.663 af Discarded=0.89 cfs 3.712 af Primary=7.67 cfs 2.951 af Outflow=8.56 cfs 6.663 af

Pond I-105:

Peak Elev=1,000.61' Storage=1.663 af Inflow=10.13 cfs 9.233 af Discarded=0.68 cfs 3.367 af Primary=9.37 cfs 5.865 af Outflow=10.06 cfs 9.232 af

Pond I-106:

Peak Elev=1,000.63' Storage=3.222 af Inflow=26.43 cfs 9.585 af Discarded=1.30 cfs 5.377 af Primary=11.04 cfs 4.208 af Outflow=12.34 cfs 9.585 af

Pond I-107:

Peak Elev=1,000.65' Storage=5.277 af Inflow=38.32 cfs 15.391 af Discarded=4.12 cfs 10.656 af Primary=13.63 cfs 4.735 af Outflow=17.74 cfs 15.391 af

Pond I-110:

Peak Elev=1,000.52' Storage=3.027 af Inflow=13.76 cfs 5.585 af Discarded=1.48 cfs 5.387 af Primary=0.57 cfs 0.198 af Outflow=2.05 cfs 5.585 af

Pond P-101:

Peak Elev=994.32' Storage=13.576 af Inflow=241.27 cfs 16.788 af Discarded=2.79 cfs 16.788 af Primary=0.00 cfs 0.000 af Outflow=2.79 cfs 16.788 af

Pond P-103:

Peak Elev=1,005.53' Storage=10.703 af Inflow=98.62 cfs 6.674 af 21.0" x 100.0' Culvert Outflow=15.30 cfs 6.663 af

Type II 24-hr 2-yr Rainfall=2.80"

Page 3 8/27/2010

Pond P-105:

Peak Elev=1,005.11' Storage=13.607 af Inflow=75.65 cfs 9.267 af 24.0" x 100.0' Culvert Outflow=10.13 cfs 9.233 af

Pond P-106:

Peak Elev=1,005.62' Storage=14.452 af Inflow=144.17 cfs 9.604 af 36.0" x 100.0' Culvert Outflow=26.43 cfs 9.585 af

Pond P-107:

Peak Elev=1,005.66' Storage=22.592 af Inflow=229.31 cfs 15.391 af 3.75' x 2.42' x 100.0' Culvert Outflow=38.32 cfs 15.391 af

Pond P-108.1:

Peak Elev=1,005.59' Storage=4.982 af Inflow=48.25 cfs 3.171 af 18.0" x 100.0' Culvert Outflow=6.69 cfs 3.165 af

Pond P-108.2:

Peak Elev=1,005.53' Storage=3.439 af Inflow=32.14 cfs 2.112 af 12.0" x 100.0' Culvert Outflow=2.98 cfs 2.110 af

Pond P-110:

Peak Elev=1,005.65' Storage=8.582 af Inflow=84.00 cfs 5.600 af 36.0" x 100.0' Culvert Outflow=13.76 cfs 5.585 af

Total Runoff Area = 547.280 ac Runoff Volume = 64.400 af Average Runoff Depth = 1.41"

Type II 24-hr 2-yr Rainfall=2.80"

Page 4 8/27/2010

Subcatchment 101-I: Runoff

237.85 cfs @ 12.01 hrs, Volume=

14.653 af, Depth= 2.57"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 68.440

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 101-P: Runoff

14.59 cfs @ 12.20 hrs, Volume=

2.093 af, Depth= 0.29"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 85.910

CN 61

Tc Length (min) (feet) 20.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 102: Runoff

0.19 cfs @ 12.82 hrs, Volume=

0.086 af, Depth= 0.14"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 7.150

CN 55

Description Big Woods (HSG B)

Type II 24-hr 2-yr Rainfall=2.80"

Page 5 8/27/2010

Subcatchment 103-I: Runoff

98.00 cfs @ 12.01 hrs, Volume=

6.038 af, Depth= 2.57"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 28.200

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 103-P: Runoff

3.07 cfs @ 12.20 hrs, Volume=

0.488 af, Depth= 0.26"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 22.140

CN 60

Tc Length (min) (feet) 20.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 104: Runoff

0.09 cfs @ 12.78 hrs, Volume=

0.042 af, Depth= 0.14"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 3.470

CN 55

Description Big Woods (HSG B)

Type II 24-hr 2-yr Rainfall=2.80"

Subcatchment 105-I: Runoff

75.38 cfs @ 12.01 hrs, Volume=

4.644 af, Depth= 2.57"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 21.690

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 105-P: Runoff

2.00 cfs @ 12.23 hrs, Volume=

0.415 af, Depth= 0.21"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 23.430

CN 58

Tc Length (min) (feet) 20.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 106-I: Runoff

142.87 cfs @ 12.01 hrs, Volume=

8.802 af, Depth= 2.57"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 41.110

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 106-P: Runoff

5.59 cfs @ 12.20 hrs, Volume=

0.803 af, Depth= 0.29"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.80"

Page 6 8/27/2010

Type II 24-hr 2-yr Rainfall=2.80"

Area (ac) 32.950

CN 61

Tc Length (min) (feet) 20.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 107-I: Runoff

227.18 cfs @ 12.01 hrs, Volume=

13.995 af, Depth= 2.57"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 65.370

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 107-P: Runoff

9.12 cfs @ 12.20 hrs, Volume=

1.310 af, Depth= 0.29"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 53.740

CN 61

Tc Length (min) (feet) 20.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 108.1-I: Runoff

47.89 cfs @ 12.01 hrs, Volume=

2.950 af, Depth= 2.57"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 13.780

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Page 7 8/27/2010

Type II 24-hr 2-yr Rainfall=2.80"

Subcatchment 108.1-P: Runoff

1.54 cfs @ 12.20 hrs, Volume=

0.221 af, Depth= 0.29"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 9.050

CN 61

Tc Length (min) (feet) 20.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 108.2-I: Runoff

31.90 cfs @ 12.01 hrs, Volume=

1.965 af, Depth= 2.57"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 9.180

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 108.2-P: Runoff

1.02 cfs @ 12.20 hrs, Volume=

0.147 af, Depth= 0.29"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 6.030

CN 61

Tc Length (min) (feet) 20.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 109: Runoff

0.34 cfs @ 12.72 hrs, Volume=

0.149 af, Depth= 0.14"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.80"

Page 8 8/27/2010

Type II 24-hr 2-yr Rainfall=2.80"

Area (ac) 12.310

CN 55

Page 9 8/27/2010

Description Aspen-Oak Land (HSG B)

Subcatchment 110-I: Runoff

83.23 cfs @ 12.01 hrs, Volume=

5.128 af, Depth= 2.57"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 23.950

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 110-P: Runoff

3.29 cfs @ 12.20 hrs, Volume=

0.472 af, Depth= 0.29"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 19.380

CN 61

Tc Length (min) (feet) 20.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Reach 107-R: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

7.150 ac, Inflow Depth = 0.14" for 2-yr event 0.19 cfs @ 12.82 hrs, Volume= 0.086 af 0.19 cfs @ 12.82 hrs, Volume= 0.086 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs

Type II 24-hr 2-yr Rainfall=2.80"

Page 10 8/27/2010

Reach Mud-1: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

263.200 ac, Inflow Depth > 0.65" for 2-yr event 21.27 cfs @ 15.20 hrs, Volume= 14.289 af 21.27 cfs @ 15.20 hrs, Volume= 14.289 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs

Reach Mud-2: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

263.200 ac, Inflow Depth > 0.65" for 2-yr event 21.27 cfs @ 15.20 hrs, Volume= 14.289 af 21.27 cfs @ 15.20 hrs, Volume= 14.289 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs

Reach Mud-3: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

81.370 ac, Inflow Depth > 0.81" for 2-yr event 9.65 cfs @ 12.44 hrs, Volume= 5.473 af 9.65 cfs @ 12.44 hrs, Volume= 5.473 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs

Reach Mud-4: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

43.330 ac, Inflow Depth = 0.05" for 2-yr event 0.57 cfs @ 20.23 hrs, Volume= 0.198 af 0.57 cfs @ 20.23 hrs, Volume= 0.198 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs

Reach Unnamed-1: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

126.260 ac, Inflow Depth = 0.45" for 2-yr event 13.63 cfs @ 14.95 hrs, Volume= 4.735 af 13.63 cfs @ 14.95 hrs, Volume= 4.735 af, Atten= 0%, Lag= 0.0 min

Type II 24-hr 2-yr Rainfall=2.80"

Page 11 8/27/2010

Routing by Stor-Ind+Trans method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs

Pond I-103: Inflow Area = Inflow = Outflow = Discarded = Primary =

62.650 ac, Inflow Depth > 1.28" for 2-yr event 15.30 cfs @ 12.37 hrs, Volume= 6.663 af 8.56 cfs @ 14.49 hrs, Volume= 6.663 af, Atten= 44%, Lag= 127.1 min 0.89 cfs @ 11.05 hrs, Volume= 3.712 af 7.67 cfs @ 14.49 hrs, Volume= 2.951 af

Routing by Stor-Ind method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Peak Elev= 1,000.60' @ 14.49 hrs Surf.Area= 3.530 ac Storage= 2.117 af Plug-Flow detention time= 529.8 min calculated for 6.662 af (100% of inflow) Center-of-Mass det. time= 529.4 min ( 1,659.6 - 1,130.2 ) Volume #1

Invert 1,000.00'

Elevation (feet) 1,000.00 1,002.00 Device #1 #2

Avail.Storage 7.060 af

Surf.Area (acres) 3.530 3.530

Routing Invert Discarded 0.00' Primary 1,000.50'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 7.060

Cum.Store (acre-feet) 0.000 7.060

Outlet Devices 0.250 in/hr Exfiltration - HSG B over Surface area 100.0' long x 3.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 Coef. (English) 2.44 2.58 2.68 2.67 2.65 2.64 2.64 2.68 2.68 2.72 2.81 2.92 2.97 3.07 3.32

Discarded OutFlow Max=0.89 cfs @ 11.05 hrs HW=1,000.02' (Free Discharge) 1=Exfiltration - HSG B (Exfiltration Controls 0.89 cfs) Primary OutFlow Max=7.67 cfs @ 14.49 hrs HW=1,000.60' (Free Discharge) 2=Broad-Crested Rectangular Weir (Weir Controls 7.67 cfs @ 0.8 fps)

Pond I-105: Inflow Area = Inflow = Outflow = Discarded = Primary =

119.180 ac, Inflow Depth > 0.93" for 2-yr event 10.13 cfs @ 15.70 hrs, Volume= 9.233 af 10.06 cfs @ 16.05 hrs, Volume= 9.232 af, Atten= 1%, Lag= 21.4 min 0.68 cfs @ 11.83 hrs, Volume= 3.367 af 9.37 cfs @ 16.05 hrs, Volume= 5.865 af

Routing by Stor-Ind method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Peak Elev= 1,000.61' @ 16.05 hrs Surf.Area= 2.710 ac Storage= 1.663 af Plug-Flow detention time= 367.6 min calculated for 9.232 af (100% of inflow) Center-of-Mass det. time= 367.0 min ( 1,671.9 - 1,304.9 )

Type II 24-hr 2-yr Rainfall=2.80"

Volume #1

Invert 1,000.00'

Elevation (feet) 1,000.00 1,002.00 Device #1 #2

Avail.Storage 5.420 af

Surf.Area (acres) 2.710 2.710

Routing Invert Discarded 0.00' Primary 1,000.50'

Page 12 8/27/2010

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 5.420

Cum.Store (acre-feet) 0.000 5.420

Discarded OutFlow Max=0.68 cfs @ 11.83 hrs HW=1,000.02' (Free Discharge) 1=Exfiltration - HSG B (Exfiltration Controls 0.68 cfs) Primary OutFlow Max=9.35 cfs @ 16.05 hrs HW=1,000.61' (Free Discharge) 2=Broad-Crested Rectangular Weir (Weir Controls 9.35 cfs @ 0.8 fps)

Pond I-106: Inflow Area = Inflow = Outflow = Discarded = Primary =

74.060 ac, Inflow Depth > 1.55" for 2-yr event 26.43 cfs @ 12.31 hrs, Volume= 9.585 af 12.34 cfs @ 14.37 hrs, Volume= 9.585 af, Atten= 53%, Lag= 123.3 min 1.30 cfs @ 11.03 hrs, Volume= 5.377 af 11.04 cfs @ 14.37 hrs, Volume= 4.208 af

Routing by Stor-Ind method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Peak Elev= 1,000.63' @ 14.37 hrs Surf.Area= 5.140 ac Storage= 3.222 af Plug-Flow detention time= 539.4 min calculated for 9.585 af (100% of inflow) Center-of-Mass det. time= 539.0 min ( 1,655.6 - 1,116.6 ) Volume #1

Invert 1,000.00'

Elevation (feet) 1,000.00 1,002.00 Device #1 #2

Avail.Storage 10.280 af

Surf.Area (acres) 5.140 5.140

Routing Invert Discarded 0.00' Primary 1,000.50'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 10.280

Cum.Store (acre-feet) 0.000 10.280

Type II 24-hr 2-yr Rainfall=2.80"

Page 13 8/27/2010

Discarded OutFlow Max=1.30 cfs @ 11.03 hrs HW=1,000.02' (Free Discharge) 1=Exfiltration - HSG B (Exfiltration Controls 1.30 cfs) Primary OutFlow Max=11.02 cfs @ 14.37 hrs HW=1,000.63' (Free Discharge) 2=Broad-Crested Rectangular Weir (Weir Controls 11.02 cfs @ 0.9 fps)

Pond I-107: Inflow Area = Inflow = Outflow = Discarded = Primary =

126.260 ac, Inflow Depth = 1.46" for 2-yr event 38.32 cfs @ 12.35 hrs, Volume= 15.391 af 17.74 cfs @ 14.95 hrs, Volume= 15.391 af, Atten= 54%, Lag= 155.8 min 4.12 cfs @ 11.31 hrs, Volume= 10.656 af 13.63 cfs @ 14.95 hrs, Volume= 4.735 af

Routing by Stor-Ind method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Peak Elev= 1,000.65' @ 14.95 hrs Surf.Area= 8.170 ac Storage= 5.277 af Plug-Flow detention time= 353.4 min calculated for 15.390 af (100% of inflow) Center-of-Mass det. time= 353.4 min ( 1,337.1 - 983.8 ) Volume #1

Invert 1,000.00'

Elevation (feet) 1,000.00 1,002.00 Device #1 #2

Avail.Storage 16.340 af

Surf.Area (acres) 8.170 8.170

Routing Invert Discarded 0.00' Primary 1,000.50'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 16.340

Cum.Store (acre-feet) 0.000 16.340

Outlet Devices 0.500 in/hr Exfiltration - HSG B over Surface area 100.0' long x 3.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 Coef. (English) 2.44 2.58 2.68 2.67 2.65 2.64 2.64 2.68 2.68 2.72 2.81 2.92 2.97 3.07 3.32

Discarded OutFlow Max=4.12 cfs @ 11.31 hrs HW=1,000.02' (Free Discharge) 1=Exfiltration - HSG B (Exfiltration Controls 4.12 cfs) Primary OutFlow Max=13.61 cfs @ 14.95 hrs HW=1,000.65' (Free Discharge) 2=Broad-Crested Rectangular Weir (Weir Controls 13.61 cfs @ 0.9 fps)

Pond I-110: Inflow Area = Inflow = Outflow = Discarded = Primary =

43.330 ac, Inflow Depth > 1.55" for 2-yr event 13.76 cfs @ 12.35 hrs, Volume= 5.585 af 2.05 cfs @ 20.23 hrs, Volume= 5.585 af, Atten= 85%, Lag= 472.5 min 1.48 cfs @ 11.89 hrs, Volume= 5.387 af 0.57 cfs @ 20.23 hrs, Volume= 0.198 af

Routing by Stor-Ind method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs

Type II 24-hr 2-yr Rainfall=2.80"

Page 14 8/27/2010

Peak Elev= 1,000.52' @ 20.23 hrs Surf.Area= 5.860 ac Storage= 3.027 af Plug-Flow detention time= 845.5 min calculated for 5.584 af (100% of inflow) Center-of-Mass det. time= 844.9 min ( 1,981.1 - 1,136.1 ) Volume #1

Invert 1,000.00'

Elevation (feet) 1,000.00 1,002.00 Device #1 #2

Avail.Storage 11.720 af

Surf.Area (acres) 5.860 5.860

Routing Invert Discarded 0.00' Primary 1,000.50'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 11.720

Cum.Store (acre-feet) 0.000 11.720

Discarded OutFlow Max=1.48 cfs @ 11.89 hrs HW=1,000.02' (Free Discharge) 1=Exfiltration - HSG B (Exfiltration Controls 1.48 cfs) Primary OutFlow Max=0.52 cfs @ 20.23 hrs HW=1,000.52' (Free Discharge) 2=Broad-Crested Rectangular Weir (Weir Controls 0.52 cfs @ 0.3 fps)

Pond P-101: Inflow Area = Inflow = Outflow = Discarded = Primary =

157.820 ac, Inflow Depth = 1.28" for 2-yr event 241.27 cfs @ 12.01 hrs, Volume= 16.788 af 2.79 cfs @ 24.08 hrs, Volume= 16.788 af, Atten= 99%, Lag= 724.3 min 2.79 cfs @ 24.08 hrs, Volume= 16.788 af 0.00 cfs @ 0.00 hrs, Volume= 0.000 af

Routing by Stor-Ind method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Peak Elev= 994.32' @ 24.08 hrs Surf.Area= 11.079 ac Storage= 13.576 af Plug-Flow detention time= 2,571.4 min calculated for 16.787 af (100% of inflow) Center-of-Mass det. time= 2,571.7 min ( 3,354.9 - 783.3 ) Volume #1 Elevation (feet) 992.00 994.00 996.00 998.00

Invert 992.00'

Avail.Storage 99.580 af

Surf.Area (acres) 1.300 9.050 21.710 36.760

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 10.350 30.760 58.470

Cum.Store (acre-feet) 0.000 10.350 41.110 99.580

Type II 24-hr 2-yr Rainfall=2.80"

Device #1 #2

Routing Discarded Primary

Invert 0.00' 996.50'

Page 15 8/27/2010

Outlet Devices 0.250 in/hr Exfiltration - HSG B soils over Surface area 250.0' long x 36.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63

Discarded OutFlow Max=2.79 cfs @ 24.08 hrs HW=994.32' (Free Discharge) 1=Exfiltration - HSG B soils (Exfiltration Controls 2.79 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=992.00' (Free Discharge) 2=Broad-Crested Rectangular Weir ( Controls 0.00 cfs)

Pond P-103: Inflow Area = Inflow = Outflow = Primary =

62.650 ac, Inflow Depth = 1.28" for 2-yr event 98.62 cfs @ 12.01 hrs, Volume= 6.674 af 15.30 cfs @ 12.37 hrs, Volume= 6.663 af, Atten= 84%, Lag= 21.6 min 15.30 cfs @ 12.37 hrs, Volume= 6.663 af

Routing by Stor-Ind method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Starting Elev= 1,004.00' Surf.Area= 2.068 ac Storage= 7.392 af Peak Elev= 1,005.53' @ 12.37 hrs Surf.Area= 2.253 ac Storage= 10.703 af (3.311 af above start) Plug-Flow detention time= (not calculated: initial storage excedes outflow) Center-of-Mass det. time= 350.9 min ( 1,130.2 - 779.3 ) Volume #1

Invert 1,000.00'

Elevation (feet) 1,000.00 1,004.00 1,008.00 Device #1

Avail.Storage 16.632 af

Surf.Area (acres) 1.480 1.880 2.320

Routing Primary

Invert 1,004.00'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc) x 1.1

Inc.Store (acre-feet) 0.000 6.720 8.400

Cum.Store (acre-feet) 0.000 6.720 15.120

Outlet Devices 21.0" x 100.0' long Culvert X 2.00 RCP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 1,003.50' S= 0.0050 '/' Cc= 0.900 n= 0.013

Primary OutFlow Max=15.30 cfs @ 12.37 hrs HW=1,005.53' (Free Discharge) 1=Culvert (Barrel Controls 15.30 cfs @ 4.6 fps)

Pond P-105: [81] Warning: Exceeded Pond I-106 by 4.79' @ 12.21 hrs Inflow Area = Inflow = Outflow = Primary =

119.180 ac, Inflow Depth = 0.93" for 2-yr event 75.65 cfs @ 12.01 hrs, Volume= 9.267 af 10.13 cfs @ 15.70 hrs, Volume= 9.233 af, Atten= 87%, Lag= 221.2 min 10.13 cfs @ 15.70 hrs, Volume= 9.233 af

Type II 24-hr 2-yr Rainfall=2.80"

Page 16 8/27/2010

Routing by Stor-Ind method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Starting Elev= 1,004.00' Surf.Area= 2.849 ac Storage= 10.362 af Peak Elev= 1,005.11' @ 15.70 hrs Surf.Area= 3.007 ac Storage= 13.607 af (3.245 af above start) Plug-Flow detention time= (not calculated: initial storage excedes outflow) Center-of-Mass det. time= 412.4 min ( 1,304.9 - 892.5 ) Volume #1

Invert 1,000.00'

Elevation (feet) 1,000.00 1,004.00 1,008.00 Device #1

Avail.Storage 22.902 af

Surf.Area (acres) 2.120 2.590 3.110

Routing Primary

Invert 1,004.00'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc) x 1.1

Inc.Store (acre-feet) 0.000 9.420 11.400

Cum.Store (acre-feet) 0.000 9.420 20.820

Outlet Devices 24.0" x 100.0' long Culvert X 2.00 RCP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 1,003.50' S= 0.0050 '/' Cc= 0.900 n= 0.013

Primary OutFlow Max=10.13 cfs @ 15.70 hrs HW=1,005.11' (Free Discharge) 1=Culvert (Barrel Controls 10.13 cfs @ 4.1 fps)

Pond P-106: Inflow Area = Inflow = Outflow = Primary =

74.060 ac, Inflow Depth = 1.56" for 2-yr event 144.17 cfs @ 12.01 hrs, Volume= 9.604 af 26.43 cfs @ 12.31 hrs, Volume= 9.585 af, Atten= 82%, Lag= 18.2 min 26.43 cfs @ 12.31 hrs, Volume= 9.585 af

Routing by Stor-Ind method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Starting Elev= 1,004.00' Surf.Area= 2.670 ac Storage= 9.720 af Peak Elev= 1,005.62' @ 12.31 hrs Surf.Area= 2.880 ac Storage= 14.452 af (4.732 af above start) Plug-Flow detention time= (not calculated: initial storage excedes outflow) Center-of-Mass det. time= 341.7 min ( 1,116.6 - 774.9 ) Volume #1

Invert 1,000.00'

Elevation (feet) 1,000.00 1,004.00 1,008.00 Device #1

Avail.Storage 21.440 af

Surf.Area (acres) 2.190 2.670 3.190

Routing Primary

Invert 1,004.00'

Storage Description Custom Stage Data (Prismatic) Listed below

Inc.Store (acre-feet) 0.000 9.720 11.720

Cum.Store (acre-feet) 0.000 9.720 21.440

Outlet Devices 36.0" x 100.0' long Culvert X 2.00 RCP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 1,003.50' S= 0.0050 '/' Cc= 0.900 n= 0.013

Type II 24-hr 2-yr Rainfall=2.80"

Page 17 8/27/2010

Primary OutFlow Max=26.42 cfs @ 12.31 hrs HW=1,005.62' (Free Discharge) 1=Culvert (Barrel Controls 26.42 cfs @ 4.9 fps)

Pond P-107: Inflow Area = Inflow = Outflow = Primary =

126.260 ac, Inflow Depth = 1.46" for 2-yr event 229.31 cfs @ 12.01 hrs, Volume= 15.391 af 38.32 cfs @ 12.35 hrs, Volume= 15.391 af, Atten= 83%, Lag= 20.2 min 38.32 cfs @ 12.35 hrs, Volume= 15.391 af

Routing by Stor-Ind method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Starting Elev= 1,004.00' Surf.Area= 4.170 ac Storage= 15.460 af Peak Elev= 1,005.66' @ 12.35 hrs Surf.Area= 4.439 ac Storage= 22.592 af (7.132 af above start) Plug-Flow detention time= (not calculated: initial storage excedes outflow) Center-of-Mass det. time= 207.1 min ( 983.8 - 776.6 ) Volume #1

Invert 1,000.00'

Elevation (feet) 1,000.00 1,004.00 1,008.00 Device #1

Avail.Storage 33.440 af

Surf.Area (acres) 3.560 4.170 4.820

Routing Primary

Invert 1,004.00'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 15.460 17.980

Cum.Store (acre-feet) 0.000 15.460 33.440

Outlet Devices 3.75' W x 2.42' H x 100.0' long Culvert X 1.60 RCP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 1,003.50' S= 0.0050 '/' Cc= 0.900 n= 0.013

Primary OutFlow Max=38.31 cfs @ 12.35 hrs HW=1,005.66' (Free Discharge) 1=Culvert (Barrel Controls 38.31 cfs @ 8.2 fps)

Pond P-108.1: Inflow Area = Inflow = Outflow = Primary =

22.830 ac, Inflow Depth = 1.67" for 2-yr event 48.25 cfs @ 12.01 hrs, Volume= 3.171 af 6.69 cfs @ 12.41 hrs, Volume= 3.165 af, Atten= 86%, Lag= 23.9 min 6.69 cfs @ 12.41 hrs, Volume= 3.165 af

Routing by Stor-Ind method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Starting Elev= 1,004.00' Surf.Area= 0.970 ac Storage= 3.340 af Peak Elev= 1,005.59' @ 12.41 hrs Surf.Area= 1.101 ac Storage= 4.982 af (1.642 af above start) Plug-Flow detention time= (not calculated: initial storage excedes outflow) Center-of-Mass det. time= 362.3 min ( 1,134.5 - 772.2 ) Volume #1

Invert 1,000.00'

Avail.Storage 7.880 af

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Type II 24-hr 2-yr Rainfall=2.80"

Elevation (feet) 1,000.00 1,004.00 1,008.00 Device #1

Surf.Area (acres) 0.700 0.970 1.300

Routing Primary

Invert 1,004.00'

Inc.Store (acre-feet) 0.000 3.340 4.540

Page 18 8/27/2010

Cum.Store (acre-feet) 0.000 3.340 7.880

Outlet Devices 18.0" x 100.0' long Culvert RCP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 1,003.50' S= 0.0050 '/' Cc= 0.900 n= 0.013

Primary OutFlow Max=6.69 cfs @ 12.41 hrs HW=1,005.59' (Free Discharge) 1=Culvert (Barrel Controls 6.69 cfs @ 4.5 fps)

Pond P-108.2: Inflow Area = Inflow = Outflow = Primary =

15.210 ac, Inflow Depth = 1.67" for 2-yr event 32.14 cfs @ 12.01 hrs, Volume= 2.112 af 2.98 cfs @ 12.61 hrs, Volume= 2.110 af, Atten= 91%, Lag= 36.1 min 2.98 cfs @ 12.61 hrs, Volume= 2.110 af

Routing by Stor-Ind method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Starting Elev= 1,004.00' Surf.Area= 0.693 ac Storage= 2.288 af Peak Elev= 1,005.53' @ 12.61 hrs Surf.Area= 0.807 ac Storage= 3.439 af (1.151 af above start) Plug-Flow detention time= (not calculated: initial storage excedes outflow) Center-of-Mass det. time= 392.4 min ( 1,164.6 - 772.2 ) Volume #1

Invert 1,000.00'

Elevation (feet) 1,000.00 1,004.00 1,008.00 Device #1

Avail.Storage 5.654 af

Surf.Area (acres) 0.410 0.630 0.900

Routing Primary

Invert 1,004.00'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc) x 1.1

Inc.Store (acre-feet) 0.000 2.080 3.060

Cum.Store (acre-feet) 0.000 2.080 5.140

Outlet Devices 12.0" x 100.0' long Culvert RCP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 1,003.50' S= 0.0050 '/' Cc= 0.900 n= 0.013

Primary OutFlow Max=2.98 cfs @ 12.61 hrs HW=1,005.53' (Free Discharge) 1=Culvert (Barrel Controls 2.98 cfs @ 3.8 fps)

Pond P-110: Inflow Area = Inflow = Outflow = Primary =

43.330 ac, Inflow Depth = 1.55" for 2-yr event 84.00 cfs @ 12.01 hrs, Volume= 5.600 af 13.76 cfs @ 12.35 hrs, Volume= 5.585 af, Atten= 84%, Lag= 20.5 min 13.76 cfs @ 12.35 hrs, Volume= 5.585 af

Type II 24-hr 2-yr Rainfall=2.80"

Page 19 8/27/2010

Routing by Stor-Ind method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Starting Elev= 1,004.00' Surf.Area= 1.620 ac Storage= 5.760 af Peak Elev= 1,005.65' @ 12.35 hrs Surf.Area= 1.794 ac Storage= 8.582 af (2.822 af above start) Plug-Flow detention time= (not calculated: initial storage excedes outflow) Center-of-Mass det. time= 361.1 min ( 1,136.1 - 775.0 ) Volume #1

Invert 1,000.00'

Elevation (feet) 1,000.00 1,004.00 1,008.00 Device #1

Avail.Storage 13.080 af

Surf.Area (acres) 1.260 1.620 2.040

Routing Primary

Invert 1,004.00'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 5.760 7.320

Cum.Store (acre-feet) 0.000 5.760 13.080

Outlet Devices 36.0" x 100.0' long Culvert RCP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 1,003.50' S= 0.0050 '/' Cc= 0.900 n= 0.013

Primary OutFlow Max=13.76 cfs @ 12.35 hrs HW=1,005.65' (Free Discharge) 1=Culvert (Barrel Controls 13.76 cfs @ 5.0 fps)

Type II 24-hr 100-yr Rainfall=6.10"

Page 20 8/27/2010

Time span=0.00-168.00 hrs, dt=0.01 hrs, 16801 points Runoff by SCS TR-20 method, UH=SCS Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment 101-I:

Runoff Area=68.440 ac Runoff Depth=5.86" Tc=10.0 min CN=98 Runoff=524.82 cfs 33.432 af

Subcatchment 101-P:

Runoff Area=85.910 ac Runoff Depth=2.07" Tc=20.0 min CN=61 Runoff=189.36 cfs 14.839 af

Subcatchment 102:

Subcatchment 103-I:

Subcatchment 103-P:

Subcatchment 104:

Subcatchment 105-I:

Subcatchment 105-P:

Subcatchment 106-I:

Subcatchment 106-P:

Runoff Area=7.150 ac Runoff Depth=1.58" Flow Length=885' Tc=42.1 min CN=55 Runoff=6.67 cfs 0.939 af Runoff Area=28.200 ac Runoff Depth=5.86" Tc=10.0 min CN=98 Runoff=216.25 cfs 13.775 af Runoff Area=22.140 ac Runoff Depth=1.99" Tc=20.0 min CN=60 Runoff=46.43 cfs 3.667 af Runoff Area=3.470 ac Runoff Depth=1.58" Flow Length=470' Tc=41.5 min CN=55 Runoff=3.27 cfs 0.456 af Runoff Area=21.690 ac Runoff Depth=5.86" Tc=10.0 min CN=98 Runoff=166.32 cfs 10.595 af Runoff Area=23.430 ac Runoff Depth=1.82" Tc=20.0 min CN=58 Runoff=44.18 cfs 3.552 af Runoff Area=41.110 ac Runoff Depth=5.86" Tc=10.0 min CN=98 Runoff=315.24 cfs 20.081 af Runoff Area=32.950 ac Runoff Depth=2.07" Tc=20.0 min CN=61 Runoff=72.63 cfs 5.691 af

Subcatchment 107-I:

Runoff Area=65.370 ac Runoff Depth=5.86" Tc=10.0 min CN=98 Runoff=501.27 cfs 31.932 af

Subcatchment 107-P:

Runoff Area=53.740 ac Runoff Depth=2.07" Tc=20.0 min CN=61 Runoff=118.45 cfs 9.282 af

Subcatchment 108.1-I:

Runoff Area=13.780 ac Runoff Depth=5.86" Tc=10.0 min CN=98 Runoff=105.67 cfs 6.731 af

Subcatchment 108.1-P:

Runoff Area=9.050 ac Runoff Depth=2.07" Tc=20.0 min CN=61 Runoff=19.95 cfs 1.563 af

Subcatchment 108.2-I:

Runoff Area=9.180 ac Runoff Depth=5.86" Tc=10.0 min CN=98 Runoff=70.39 cfs 4.484 af

Type II 24-hr 100-yr Rainfall=6.10"

Subcatchment 108.2-P:

Page 21 8/27/2010

Runoff Area=6.030 ac Runoff Depth=2.07" Tc=20.0 min CN=61 Runoff=13.29 cfs 1.042 af Runoff Area=12.310 ac Runoff Depth=1.58" Flow Length=825' Tc=36.7 min CN=55 Runoff=12.73 cfs 1.616 af

Subcatchment 109:

Runoff Area=23.950 ac Runoff Depth=5.86" Tc=10.0 min CN=98 Runoff=183.66 cfs 11.699 af

Subcatchment 110-I:

Subcatchment 110-P:

Runoff Area=19.380 ac Runoff Depth=2.07" Tc=20.0 min CN=61 Runoff=42.72 cfs 3.347 af

Reach 107-R:

Inflow=6.67 cfs 0.939 af Outflow=6.67 cfs 0.939 af

Reach Mud-1:

Inflow=122.14 cfs 67.623 af Outflow=122.14 cfs 67.623 af

Reach Mud-2:

Inflow=122.14 cfs 67.623 af Outflow=122.14 cfs 67.623 af

Reach Mud-3:

Inflow=45.37 cfs 22.683 af Outflow=45.37 cfs 22.683 af

Reach Mud-4:

Inflow=28.08 cfs 8.872 af Outflow=28.08 cfs 8.872 af

Reach Unnamed-1:

Inflow=87.70 cfs 29.321 af Outflow=87.70 cfs 29.321 af

Pond I-103:

Peak Elev=1,000.76' Storage=2.688 af Inflow=35.54 cfs 19.046 af Discarded=0.89 cfs 4.179 af Primary=33.20 cfs 14.866 af Outflow=34.09 cfs 19.046 af

Pond I-105:

Peak Elev=1,000.82' Storage=2.233 af Inflow=47.39 cfs 33.842 af Discarded=0.68 cfs 3.768 af Primary=46.64 cfs 30.074 af Outflow=47.33 cfs 33.842 af

Pond I-106:

Peak Elev=1,000.94' Storage=4.815 af Inflow=89.97 cfs 25.752 af Discarded=1.30 cfs 6.021 af Primary=75.01 cfs 19.732 af Outflow=76.30 cfs 25.752 af

Pond I-107:

Peak Elev=1,000.98' Storage=8.023 af Inflow=110.91 cfs 42.153 af Discarded=4.12 cfs 12.832 af Primary=87.70 cfs 29.321 af Outflow=91.82 cfs 42.153 af

Pond I-110:

Peak Elev=1,000.73' Storage=4.307 af Inflow=44.63 cfs 15.031 af Discarded=1.48 cfs 6.159 af Primary=28.08 cfs 8.872 af Outflow=29.56 cfs 15.031 af

Pond P-101:

Peak Elev=996.06' Storage=42.441 af Inflow=650.39 cfs 48.726 af Discarded=5.59 cfs 45.132 af Primary=0.00 cfs 0.000 af Outflow=5.59 cfs 45.132 af

Pond P-103:

Peak Elev=1,007.78' Storage=16.082 af Inflow=248.63 cfs 19.058 af 21.0" x 100.0' Culvert Outflow=35.54 cfs 19.046 af

Type II 24-hr 100-yr Rainfall=6.10"

Page 22 8/27/2010

Pond P-105:

Peak Elev=1,007.93' Storage=22.649 af Inflow=193.83 cfs 33.879 af 24.0" x 100.0' Culvert Outflow=47.39 cfs 33.842 af

Pond P-106:

Peak Elev=1,007.67' Storage=20.480 af Inflow=362.21 cfs 25.773 af 36.0" x 100.0' Culvert Outflow=89.97 cfs 25.752 af

Pond P-107:

Peak Elev=1,007.95' Storage=33.220 af Inflow=579.03 cfs 42.153 af 3.75' x 2.42' x 100.0' Culvert Outflow=110.91 cfs 42.153 af

Pond P-108.1:

Peak Elev=1,007.70' Storage=7.490 af Inflow=118.49 cfs 8.294 af 18.0" x 100.0' Culvert Outflow=12.77 cfs 8.289 af

Pond P-108.2:

Peak Elev=1,007.65' Storage=5.313 af Inflow=78.94 cfs 5.526 af 12.0" x 100.0' Culvert Outflow=5.19 cfs 5.523 af

Pond P-110:

Peak Elev=1,007.64' Storage=12.354 af Inflow=211.29 cfs 15.047 af 36.0" x 100.0' Culvert Outflow=44.63 cfs 15.031 af

Total Runoff Area = 547.280 ac Runoff Volume = 178.724 af Average Runoff Depth = 3.92"

Type II 24-hr 100-yr Rainfall=6.10"

Page 23 8/27/2010

Subcatchment 101-I: Runoff

524.82 cfs @ 12.01 hrs, Volume=

33.432 af, Depth= 5.86"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 68.440

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 101-P: Runoff

189.36 cfs @ 12.14 hrs, Volume=

14.839 af, Depth= 2.07"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 85.910

CN 61

Tc Length (min) (feet) 20.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 102: Runoff

6.67 cfs @ 12.44 hrs, Volume=

0.939 af, Depth= 1.58"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 7.150

CN 55

Description Big Woods (HSG B)

Type II 24-hr 100-yr Rainfall=6.10"

Page 24 8/27/2010

Subcatchment 103-I: Runoff

216.25 cfs @ 12.01 hrs, Volume=

13.775 af, Depth= 5.86"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 28.200

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 103-P: Runoff

46.43 cfs @ 12.14 hrs, Volume=

3.667 af, Depth= 1.99"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 22.140

CN 60

Tc Length (min) (feet) 20.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 104: Runoff

3.27 cfs @ 12.41 hrs, Volume=

0.456 af, Depth= 1.58"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 3.470

CN 55

Description Big Woods (HSG B)

Type II 24-hr 100-yr Rainfall=6.10"

Subcatchment 105-I: Runoff

166.32 cfs @ 12.01 hrs, Volume=

10.595 af, Depth= 5.86"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 21.690

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 105-P: Runoff

44.18 cfs @ 12.15 hrs, Volume=

3.552 af, Depth= 1.82"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 23.430

CN 58

Tc Length (min) (feet) 20.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 106-I: Runoff

315.24 cfs @ 12.01 hrs, Volume=

20.081 af, Depth= 5.86"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 41.110

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 106-P: Runoff

72.63 cfs @ 12.14 hrs, Volume=

5.691 af, Depth= 2.07"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.10"

Page 25 8/27/2010

Type II 24-hr 100-yr Rainfall=6.10"

Area (ac) 32.950

CN 61

Tc Length (min) (feet) 20.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 107-I: Runoff

501.27 cfs @ 12.01 hrs, Volume=

31.932 af, Depth= 5.86"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 65.370

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 107-P: Runoff

118.45 cfs @ 12.14 hrs, Volume=

9.282 af, Depth= 2.07"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 53.740

CN 61

Tc Length (min) (feet) 20.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 108.1-I: Runoff

105.67 cfs @ 12.01 hrs, Volume=

6.731 af, Depth= 5.86"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 13.780

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Page 26 8/27/2010

Type II 24-hr 100-yr Rainfall=6.10"

Subcatchment 108.1-P: Runoff

19.95 cfs @ 12.14 hrs, Volume=

1.563 af, Depth= 2.07"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 9.050

CN 61

Tc Length (min) (feet) 20.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 108.2-I: Runoff

70.39 cfs @ 12.01 hrs, Volume=

4.484 af, Depth= 5.86"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 9.180

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 108.2-P: Runoff

13.29 cfs @ 12.14 hrs, Volume=

1.042 af, Depth= 2.07"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 6.030

CN 61

Tc Length (min) (feet) 20.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 109: Runoff

12.73 cfs @ 12.36 hrs, Volume=

1.616 af, Depth= 1.58"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.10"

Page 27 8/27/2010

Type II 24-hr 100-yr Rainfall=6.10"

Area (ac) 12.310

CN 55

Page 28 8/27/2010

Description Aspen-Oak Land (HSG B)

Subcatchment 110-I: Runoff

183.66 cfs @ 12.01 hrs, Volume=

11.699 af, Depth= 5.86"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 23.950

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 110-P: Runoff

42.72 cfs @ 12.14 hrs, Volume=

3.347 af, Depth= 2.07"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 19.380

CN 61

Tc Length (min) (feet) 20.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Reach 107-R: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

7.150 ac, Inflow Depth = 1.58" for 100-yr event 6.67 cfs @ 12.44 hrs, Volume= 0.939 af 6.67 cfs @ 12.44 hrs, Volume= 0.939 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs

Type II 24-hr 100-yr Rainfall=6.10"

Page 29 8/27/2010

Reach Mud-1: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

263.200 ac, Inflow Depth = 3.08" for 100-yr event 122.14 cfs @ 13.64 hrs, Volume= 67.623 af 122.14 cfs @ 13.64 hrs, Volume= 67.623 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs

Reach Mud-2: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

263.200 ac, Inflow Depth = 3.08" for 100-yr event 122.14 cfs @ 13.64 hrs, Volume= 67.623 af 122.14 cfs @ 13.64 hrs, Volume= 67.623 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs

Reach Mud-3: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

81.370 ac, Inflow Depth = 3.35" for 100-yr event 45.37 cfs @ 13.56 hrs, Volume= 22.683 af 45.37 cfs @ 13.56 hrs, Volume= 22.683 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs

Reach Mud-4: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

43.330 ac, Inflow Depth = 2.46" for 100-yr event 28.08 cfs @ 13.59 hrs, Volume= 8.872 af 28.08 cfs @ 13.59 hrs, Volume= 8.872 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs

Reach Unnamed-1: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

126.260 ac, Inflow Depth = 2.79" for 100-yr event 87.70 cfs @ 13.43 hrs, Volume= 29.321 af 87.70 cfs @ 13.43 hrs, Volume= 29.321 af, Atten= 0%, Lag= 0.0 min

Type II 24-hr 100-yr Rainfall=6.10"

Page 30 8/27/2010

Routing by Stor-Ind+Trans method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs

Pond I-103: Inflow Area = Inflow = Outflow = Discarded = Primary =

62.650 ac, Inflow Depth = 3.65" for 100-yr event 35.54 cfs @ 12.63 hrs, Volume= 19.046 af 34.09 cfs @ 13.24 hrs, Volume= 19.046 af, Atten= 4%, Lag= 36.1 min 0.89 cfs @ 7.23 hrs, Volume= 4.179 af 33.20 cfs @ 13.24 hrs, Volume= 14.866 af

Routing by Stor-Ind method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Peak Elev= 1,000.76' @ 13.24 hrs Surf.Area= 3.530 ac Storage= 2.688 af Plug-Flow detention time= 223.6 min calculated for 19.045 af (100% of inflow) Center-of-Mass det. time= 223.5 min ( 1,236.4 - 1,013.0 ) Volume #1

Invert 1,000.00'

Elevation (feet) 1,000.00 1,002.00 Device #1 #2

Avail.Storage 7.060 af

Surf.Area (acres) 3.530 3.530

Routing Invert Discarded 0.00' Primary 1,000.50'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 7.060

Cum.Store (acre-feet) 0.000 7.060

Discarded OutFlow Max=0.89 cfs @ 7.23 hrs HW=1,000.02' (Free Discharge) 1=Exfiltration - HSG B (Exfiltration Controls 0.89 cfs) Primary OutFlow Max=33.19 cfs @ 13.24 hrs HW=1,000.76' (Free Discharge) 2=Broad-Crested Rectangular Weir (Weir Controls 33.19 cfs @ 1.3 fps)

Pond I-105: Inflow Area = Inflow = Outflow = Discarded = Primary =

119.180 ac, Inflow Depth > 3.41" for 100-yr event 47.39 cfs @ 14.22 hrs, Volume= 33.842 af 47.33 cfs @ 14.38 hrs, Volume= 33.842 af, Atten= 0%, Lag= 9.3 min 0.68 cfs @ 8.61 hrs, Volume= 3.768 af 46.64 cfs @ 14.38 hrs, Volume= 30.074 af

Routing by Stor-Ind method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Peak Elev= 1,000.82' @ 14.38 hrs Surf.Area= 2.710 ac Storage= 2.233 af Plug-Flow detention time= 122.8 min calculated for 33.842 af (100% of inflow) Center-of-Mass det. time= 122.7 min ( 1,232.4 - 1,109.7 )

Type II 24-hr 100-yr Rainfall=6.10"

Volume #1

Invert 1,000.00'

Elevation (feet) 1,000.00 1,002.00 Device #1 #2

Avail.Storage 5.420 af

Surf.Area (acres) 2.710 2.710

Routing Invert Discarded 0.00' Primary 1,000.50'

Page 31 8/27/2010

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 5.420

Cum.Store (acre-feet) 0.000 5.420

Discarded OutFlow Max=0.68 cfs @ 8.61 hrs HW=1,000.02' (Free Discharge) 1=Exfiltration - HSG B (Exfiltration Controls 0.68 cfs) Primary OutFlow Max=46.63 cfs @ 14.38 hrs HW=1,000.82' (Free Discharge) 2=Broad-Crested Rectangular Weir (Weir Controls 46.63 cfs @ 1.4 fps)

Pond I-106: Inflow Area = Inflow = Outflow = Discarded = Primary =

74.060 ac, Inflow Depth = 4.17" for 100-yr event 89.97 cfs @ 12.32 hrs, Volume= 25.752 af 76.30 cfs @ 12.83 hrs, Volume= 25.752 af, Atten= 15%, Lag= 30.7 min 1.30 cfs @ 7.22 hrs, Volume= 6.021 af 75.01 cfs @ 12.83 hrs, Volume= 19.732 af

Routing by Stor-Ind method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Peak Elev= 1,000.94' @ 12.83 hrs Surf.Area= 5.140 ac Storage= 4.815 af Plug-Flow detention time= 241.1 min calculated for 25.752 af (100% of inflow) Center-of-Mass det. time= 241.0 min ( 1,210.9 - 970.0 ) Volume #1

Invert 1,000.00'

Elevation (feet) 1,000.00 1,002.00 Device #1 #2

Avail.Storage 10.280 af

Surf.Area (acres) 5.140 5.140

Routing Invert Discarded 0.00' Primary 1,000.50'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 10.280

Cum.Store (acre-feet) 0.000 10.280

Type II 24-hr 100-yr Rainfall=6.10"

Page 32 8/27/2010

Discarded OutFlow Max=1.30 cfs @ 7.22 hrs HW=1,000.02' (Free Discharge) 1=Exfiltration - HSG B (Exfiltration Controls 1.30 cfs) Primary OutFlow Max=75.00 cfs @ 12.83 hrs HW=1,000.94' (Free Discharge) 2=Broad-Crested Rectangular Weir (Weir Controls 75.00 cfs @ 1.7 fps)

Pond I-107: Inflow Area = Inflow = Outflow = Discarded = Primary =

126.260 ac, Inflow Depth = 4.01" for 100-yr event 110.91 cfs @ 12.42 hrs, Volume= 42.153 af 91.82 cfs @ 13.43 hrs, Volume= 42.153 af, Atten= 17%, Lag= 60.5 min 4.12 cfs @ 7.61 hrs, Volume= 12.832 af 87.70 cfs @ 13.43 hrs, Volume= 29.321 af

Routing by Stor-Ind method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Peak Elev= 1,000.98' @ 13.43 hrs Surf.Area= 8.170 ac Storage= 8.023 af Plug-Flow detention time= 176.7 min calculated for 42.153 af (100% of inflow) Center-of-Mass det. time= 176.7 min ( 1,106.9 - 930.2 ) Volume #1

Invert 1,000.00'

Elevation (feet) 1,000.00 1,002.00 Device #1 #2

Avail.Storage 16.340 af

Surf.Area (acres) 8.170 8.170

Routing Invert Discarded 0.00' Primary 1,000.50'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 16.340

Cum.Store (acre-feet) 0.000 16.340

Discarded OutFlow Max=4.12 cfs @ 7.61 hrs HW=1,000.02' (Free Discharge) 1=Exfiltration - HSG B (Exfiltration Controls 4.12 cfs) Primary OutFlow Max=87.69 cfs @ 13.43 hrs HW=1,000.98' (Free Discharge) 2=Broad-Crested Rectangular Weir (Weir Controls 87.69 cfs @ 1.8 fps)

Pond I-110: Inflow Area = Inflow = Outflow = Discarded = Primary =

43.330 ac, Inflow Depth = 4.16" for 100-yr event 44.63 cfs @ 12.37 hrs, Volume= 15.031 af 29.56 cfs @ 13.59 hrs, Volume= 15.031 af, Atten= 34%, Lag= 73.3 min 1.48 cfs @ 9.03 hrs, Volume= 6.159 af 28.08 cfs @ 13.59 hrs, Volume= 8.872 af

Routing by Stor-Ind method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs

Type II 24-hr 100-yr Rainfall=6.10"

Page 33 8/27/2010

Peak Elev= 1,000.73' @ 13.59 hrs Surf.Area= 5.860 ac Storage= 4.307 af Plug-Flow detention time= 399.5 min calculated for 15.030 af (100% of inflow) Center-of-Mass det. time= 399.3 min ( 1,386.1 - 986.8 ) Volume #1

Invert 1,000.00'

Elevation (feet) 1,000.00 1,002.00 Device #1 #2

Avail.Storage 11.720 af

Surf.Area (acres) 5.860 5.860

Routing Invert Discarded 0.00' Primary 1,000.50'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 11.720

Cum.Store (acre-feet) 0.000 11.720

Discarded OutFlow Max=1.48 cfs @ 9.03 hrs HW=1,000.02' (Free Discharge) 1=Exfiltration - HSG B (Exfiltration Controls 1.48 cfs) Primary OutFlow Max=28.06 cfs @ 13.59 hrs HW=1,000.73' (Free Discharge) 2=Broad-Crested Rectangular Weir (Weir Controls 28.06 cfs @ 1.2 fps)

Pond P-101: Inflow Area = Inflow = Outflow = Discarded = Primary =

157.820 ac, Inflow Depth = 3.70" for 100-yr event 650.39 cfs @ 12.02 hrs, Volume= 48.726 af 5.59 cfs @ 24.16 hrs, Volume= 45.132 af, Atten= 99%, Lag= 727.9 min 5.59 cfs @ 24.16 hrs, Volume= 45.132 af 0.00 cfs @ 0.00 hrs, Volume= 0.000 af

Routing by Stor-Ind method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Peak Elev= 996.06' @ 24.16 hrs Surf.Area= 22.167 ac Storage= 42.441 af Plug-Flow detention time= 3,542.6 min calculated for 45.132 af (93% of inflow) Center-of-Mass det. time= 3,500.5 min ( 4,284.3 - 783.8 ) Volume #1 Elevation (feet) 992.00 994.00 996.00 998.00

Invert 992.00'

Avail.Storage 99.580 af

Surf.Area (acres) 1.300 9.050 21.710 36.760

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 10.350 30.760 58.470

Cum.Store (acre-feet) 0.000 10.350 41.110 99.580

Type II 24-hr 100-yr Rainfall=6.10"

Device #1 #2

Routing Discarded Primary

Invert 0.00' 996.50'

Page 34 8/27/2010

Discarded OutFlow Max=5.59 cfs @ 24.16 hrs HW=996.06' (Free Discharge) 1=Exfiltration - HSG B soils (Exfiltration Controls 5.59 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=992.00' (Free Discharge) 2=Broad-Crested Rectangular Weir ( Controls 0.00 cfs)

Pond P-103: Inflow Area = Inflow = Outflow = Primary =

62.650 ac, Inflow Depth = 3.65" for 100-yr event 248.63 cfs @ 12.02 hrs, Volume= 19.058 af 35.54 cfs @ 12.63 hrs, Volume= 19.046 af, Atten= 86%, Lag= 36.9 min 35.54 cfs @ 12.63 hrs, Volume= 19.046 af

Routing by Stor-Ind method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Starting Elev= 1,004.00' Surf.Area= 2.068 ac Storage= 7.392 af Peak Elev= 1,007.78' @ 12.63 hrs Surf.Area= 2.526 ac Storage= 16.082 af (8.690 af above start) Plug-Flow detention time= 526.6 min calculated for 11.654 af (61% of inflow) Center-of-Mass det. time= 230.8 min ( 1,013.0 - 782.2 ) Volume #1

Invert 1,000.00'

Elevation (feet) 1,000.00 1,004.00 1,008.00 Device #1

Avail.Storage 16.632 af

Surf.Area (acres) 1.480 1.880 2.320

Routing Primary

Invert 1,004.00'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc) x 1.1

Inc.Store (acre-feet) 0.000 6.720 8.400

Cum.Store (acre-feet) 0.000 6.720 15.120

Outlet Devices 21.0" x 100.0' long Culvert X 2.00 RCP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 1,003.50' S= 0.0050 '/' Cc= 0.900 n= 0.013

Primary OutFlow Max=35.54 cfs @ 12.63 hrs HW=1,007.78' (Free Discharge) 1=Culvert (Barrel Controls 35.54 cfs @ 7.4 fps)

Pond P-105: [81] Warning: Exceeded Pond I-106 by 7.14' @ 14.40 hrs Inflow Area = Inflow = Outflow = Primary =

119.180 ac, Inflow Depth = 3.41" for 100-yr event 193.83 cfs @ 12.02 hrs, Volume= 33.879 af 47.39 cfs @ 14.22 hrs, Volume= 33.842 af, Atten= 76%, Lag= 132.1 min 47.39 cfs @ 14.22 hrs, Volume= 33.842 af

Type II 24-hr 100-yr Rainfall=6.10"

Page 35 8/27/2010

Routing by Stor-Ind method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Starting Elev= 1,004.00' Surf.Area= 2.849 ac Storage= 10.362 af Peak Elev= 1,007.93' @ 14.22 hrs Surf.Area= 3.410 ac Storage= 22.649 af (12.287 af above start) Plug-Flow detention time= 496.7 min calculated for 23.480 af (69% of inflow) Center-of-Mass det. time= 237.7 min ( 1,109.7 - 872.0 ) Volume #1

Invert 1,000.00'

Elevation (feet) 1,000.00 1,004.00 1,008.00 Device #1

Avail.Storage 22.902 af

Surf.Area (acres) 2.120 2.590 3.110

Routing Primary

Invert 1,004.00'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc) x 1.1

Inc.Store (acre-feet) 0.000 9.420 11.400

Cum.Store (acre-feet) 0.000 9.420 20.820

Outlet Devices 24.0" x 100.0' long Culvert X 2.00 RCP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 1,003.50' S= 0.0050 '/' Cc= 0.900 n= 0.013

Primary OutFlow Max=47.39 cfs @ 14.22 hrs HW=1,007.93' (Free Discharge) 1=Culvert (Barrel Controls 47.39 cfs @ 7.5 fps)

Pond P-106: Inflow Area = Inflow = Outflow = Primary =

74.060 ac, Inflow Depth = 4.18" for 100-yr event 362.21 cfs @ 12.02 hrs, Volume= 25.773 af 89.97 cfs @ 12.32 hrs, Volume= 25.752 af, Atten= 75%, Lag= 18.0 min 89.97 cfs @ 12.32 hrs, Volume= 25.752 af

Routing by Stor-Ind method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Starting Elev= 1,004.00' Surf.Area= 2.670 ac Storage= 9.720 af Peak Elev= 1,007.67' @ 12.32 hrs Surf.Area= 3.147 ac Storage= 20.480 af (10.760 af above start) Plug-Flow detention time= 471.4 min calculated for 16.032 af (62% of inflow) Center-of-Mass det. time= 198.1 min ( 970.0 - 771.9 ) Volume #1

Invert 1,000.00'

Elevation (feet) 1,000.00 1,004.00 1,008.00 Device #1

Avail.Storage 21.440 af

Surf.Area (acres) 2.190 2.670 3.190

Routing Primary

Invert 1,004.00'

Storage Description Custom Stage Data (Prismatic) Listed below

Inc.Store (acre-feet) 0.000 9.720 11.720

Cum.Store (acre-feet) 0.000 9.720 21.440

Outlet Devices 36.0" x 100.0' long Culvert X 2.00 RCP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 1,003.50' S= 0.0050 '/' Cc= 0.900 n= 0.013

Type II 24-hr 100-yr Rainfall=6.10"

Page 36 8/27/2010

Primary OutFlow Max=89.98 cfs @ 12.32 hrs HW=1,007.67' (Free Discharge) 1=Culvert (Barrel Controls 89.98 cfs @ 6.6 fps)

Pond P-107: Inflow Area = Inflow = Outflow = Primary =

126.260 ac, Inflow Depth = 4.01" for 100-yr event 579.03 cfs @ 12.02 hrs, Volume= 42.153 af 110.91 cfs @ 12.42 hrs, Volume= 42.153 af, Atten= 81%, Lag= 24.3 min 110.91 cfs @ 12.42 hrs, Volume= 42.153 af

Routing by Stor-Ind method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Starting Elev= 1,004.00' Surf.Area= 4.170 ac Storage= 15.460 af Peak Elev= 1,007.95' @ 12.42 hrs Surf.Area= 4.813 ac Storage= 33.220 af (17.760 af above start) Plug-Flow detention time= 403.1 min calculated for 26.691 af (63% of inflow) Center-of-Mass det. time= 154.7 min ( 930.2 - 775.4 ) Volume #1

Invert 1,000.00'

Elevation (feet) 1,000.00 1,004.00 1,008.00 Device #1

Avail.Storage 33.440 af

Surf.Area (acres) 3.560 4.170 4.820

Routing Primary

Invert 1,004.00'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 15.460 17.980

Cum.Store (acre-feet) 0.000 15.460 33.440

Outlet Devices 3.75' W x 2.42' H x 100.0' long Culvert X 1.60 RCP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 1,003.50' S= 0.0050 '/' Cc= 0.900 n= 0.013

Primary OutFlow Max=110.91 cfs @ 12.42 hrs HW=1,007.95' (Free Discharge) 1=Culvert (Barrel Controls 110.91 cfs @ 12.2 fps)

Pond P-108.1: Inflow Area = Inflow = Outflow = Primary =

22.830 ac, Inflow Depth = 4.36" for 100-yr event 118.49 cfs @ 12.02 hrs, Volume= 8.294 af 12.77 cfs @ 12.62 hrs, Volume= 8.289 af, Atten= 89%, Lag= 36.2 min 12.77 cfs @ 12.62 hrs, Volume= 8.289 af

Routing by Stor-Ind method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Starting Elev= 1,004.00' Surf.Area= 0.970 ac Storage= 3.340 af Peak Elev= 1,007.70' @ 12.62 hrs Surf.Area= 1.275 ac Storage= 7.490 af (4.150 af above start) Plug-Flow detention time= 584.8 min calculated for 4.948 af (60% of inflow) Center-of-Mass det. time= 269.7 min ( 1,037.6 - 767.9 ) Volume #1

Invert 1,000.00'

Avail.Storage 7.880 af

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Type II 24-hr 100-yr Rainfall=6.10"

Elevation (feet) 1,000.00 1,004.00 1,008.00 Device #1

Surf.Area (acres) 0.700 0.970 1.300

Routing Primary

Invert 1,004.00'

Inc.Store (acre-feet) 0.000 3.340 4.540

Page 37 8/27/2010

Cum.Store (acre-feet) 0.000 3.340 7.880

Outlet Devices 18.0" x 100.0' long Culvert RCP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 1,003.50' S= 0.0050 '/' Cc= 0.900 n= 0.013

Primary OutFlow Max=12.77 cfs @ 12.62 hrs HW=1,007.70' (Free Discharge) 1=Culvert (Barrel Controls 12.77 cfs @ 7.2 fps)

Pond P-108.2: Inflow Area = Inflow = Outflow = Primary =

15.210 ac, Inflow Depth = 4.36" for 100-yr event 78.94 cfs @ 12.02 hrs, Volume= 5.526 af 5.19 cfs @ 13.09 hrs, Volume= 5.523 af, Atten= 93%, Lag= 64.2 min 5.19 cfs @ 13.09 hrs, Volume= 5.523 af

Routing by Stor-Ind method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Starting Elev= 1,004.00' Surf.Area= 0.693 ac Storage= 2.288 af Peak Elev= 1,007.65' @ 13.09 hrs Surf.Area= 0.964 ac Storage= 5.313 af (3.025 af above start) Plug-Flow detention time= 754.4 min calculated for 3.235 af (59% of inflow) Center-of-Mass det. time= 381.5 min ( 1,149.3 - 767.9 ) Volume #1

Invert 1,000.00'

Elevation (feet) 1,000.00 1,004.00 1,008.00 Device #1

Avail.Storage 5.654 af

Surf.Area (acres) 0.410 0.630 0.900

Routing Primary

Invert 1,004.00'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc) x 1.1

Inc.Store (acre-feet) 0.000 2.080 3.060

Cum.Store (acre-feet) 0.000 2.080 5.140

Outlet Devices 12.0" x 100.0' long Culvert RCP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 1,003.50' S= 0.0050 '/' Cc= 0.900 n= 0.013

Primary OutFlow Max=5.19 cfs @ 13.09 hrs HW=1,007.65' (Free Discharge) 1=Culvert (Barrel Controls 5.19 cfs @ 6.6 fps)

Pond P-110: Inflow Area = Inflow = Outflow = Primary =

43.330 ac, Inflow Depth = 4.17" for 100-yr event 211.29 cfs @ 12.02 hrs, Volume= 15.047 af 44.63 cfs @ 12.37 hrs, Volume= 15.031 af, Atten= 79%, Lag= 20.9 min 44.63 cfs @ 12.37 hrs, Volume= 15.031 af

Type II 24-hr 100-yr Rainfall=6.10"

Page 38 8/27/2010

Routing by Stor-Ind method, Time Span= 0.00-168.00 hrs, dt= 0.01 hrs Starting Elev= 1,004.00' Surf.Area= 1.620 ac Storage= 5.760 af Peak Elev= 1,007.64' @ 12.37 hrs Surf.Area= 2.002 ac Storage= 12.354 af (6.594 af above start) Plug-Flow detention time= 498.4 min calculated for 9.270 af (62% of inflow) Center-of-Mass det. time= 214.7 min ( 986.8 - 772.1 ) Volume #1

Invert 1,000.00'

Elevation (feet) 1,000.00 1,004.00 1,008.00 Device #1

Avail.Storage 13.080 af

Surf.Area (acres) 1.260 1.620 2.040

Routing Primary

Invert 1,004.00'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 5.760 7.320

Cum.Store (acre-feet) 0.000 5.760 13.080

Outlet Devices 36.0" x 100.0' long Culvert RCP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 1,003.50' S= 0.0050 '/' Cc= 0.900 n= 0.013

Primary OutFlow Max=44.64 cfs @ 12.37 hrs HW=1,007.64' (Free Discharge) 1=Culvert (Barrel Controls 44.64 cfs @ 6.6 fps)

SOUTH DEVELOPMENT AREA EXHIBITS & CALCULATIONS

Legend Development Limits Study Area Watersheds MN DNR Major Watershed Divides Streams Hydrologic Soil Groups A A/D B B/D C C/D D

l Feet

1,000

2,000

Legend Streams Watershed Divides Topographic Contours (2-ft Interval) Development Limits

Proposed Land Use Commercial - Office Commercial - Retail Multi-Family Residential Open Space Public/Institutional Single Family Residential Roadway Right-of-Way

l Feet

1,000

2,000

Legend Streams MN DNR Major Watershed Divides Study Area Watersheds Development Limits

Presettlement Vegetation (MN DNR) Aspen-Oak Land Big Woods - Hardwoods (oak, maple, basswood, hickory) Oak openings and barrens Prairie

l Feet

1,000

2,000

! " "

Legend Streams Topographic Contours (2-ft Interval) MN DNR Major Watershed Divides Study Area Watersheds Development Limits

l Feet

1,000

2,000

# $

Legend Streams Topographic Contours (2-ft Interval) Development Limits Wetland Indicators Poorly drained Somewhat poorly drained Very poorly drained Hydric soils NWI Wetlands

l Feet

1,000

2,000

215

208a-P

P-208a

I-208a P-208b

214 208a-I

211

Heath-4

208-I Heath-2

208-P

217

204-R

201 Heath-3

204-I 204-P

I-203

P-203

209-P

212-R1

P-204

203-P

203-I

206-P

P-207

Heath-1

207-I

209-I

P-206

216

I-209

207-P

206-I

I-207 P-209

I-206a I-206b

209a-I

219

218

P-209a

Cannon-1

Rice-1 209a-P'

Rice-0 Rice-2

202-P

202-I

Rice-3 Cannon-2

202-R1

205

Subcat

Reach

Pond

Link

P-202

Cannon-3

Type II 24-hr 2-yr Rainfall=2.80"

Page 1 8/27/2010

Time span=0.00-72.00 hrs, dt=0.05 hrs, 1441 points Runoff by SCS TR-20 method, UH=SCS Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment 201:

Runoff Area=4.540 ac Runoff Depth=0.14" Flow Length=300' Tc=32.3 min CN=55 Runoff=0.13 cfs 0.055 af

Subcatchment 202:

Runoff Area=22.990 ac Runoff Depth=0.17" Flow Length=860' Tc=44.4 min CN=56 Runoff=0.79 cfs 0.318 af

Subcatchment 203:

Runoff Area=47.130 ac Runoff Depth=0.19" Flow Length=1,660' Tc=47.0 min CN=57 Runoff=2.06 cfs 0.741 af

Subcatchment 204:

Runoff Area=43.540 ac Runoff Depth=0.14" Flow Length=1,660' Tc=70.0 min CN=55 Runoff=0.98 cfs 0.526 af

Subcatchment 205:

Runoff Area=14.900 ac Runoff Depth=0.14" Flow Length=730' Tc=45.1 min CN=55 Runoff=0.39 cfs 0.180 af

Subcatchment 206:

Runoff Area=22.500 ac Runoff Depth=0.09" Flow Length=1,210' Tc=52.0 min CN=52 Runoff=0.24 cfs 0.167 af

Subcatchment 207:

Runoff Area=42.530 ac Runoff Depth=0.19" Flow Length=2,205' Tc=83.7 min CN=57 Runoff=1.45 cfs 0.669 af

Subcatchment 208:

Runoff Area=16.530 ac Runoff Depth=0.07" Flow Length=1,275' Tc=38.0 min CN=51 Runoff=0.14 cfs 0.101 af

Subcatchment 209:

Runoff Area=14.190 ac Runoff Depth=0.14" Flow Length=890' Tc=39.0 min CN=55 Runoff=0.39 cfs 0.171 af

Subcatchment 211:

Runoff Area=11.730 ac Runoff Depth=0.14" Flow Length=1,080' Tc=36.0 min CN=55 Runoff=0.33 cfs 0.142 af

Subcatchment 212:

Runoff Area=93.230 ac Runoff Depth=0.14" Flow Length=2,910' Tc=85.6 min CN=55 Runoff=1.97 cfs 1.126 af

Subcatchment 213:

Runoff Area=38.460 ac Runoff Depth=0.13" Flow Length=2,510' Tc=73.8 min CN=54 Runoff=0.67 cfs 0.401 af

Subcatchment 214:

Runoff Area=15.910 ac Runoff Depth=0.19" Flow Length=940' Tc=29.3 min CN=57 Runoff=0.85 cfs 0.250 af

Subcatchment 215:

Runoff Area=4.580 ac Runoff Depth=0.14" Flow Length=945' Tc=32.5 min CN=55 Runoff=0.13 cfs 0.055 af

Subcatchment 216:

Runoff Area=4.490 ac Runoff Depth=0.14" Flow Length=690' Tc=41.7 min CN=55 Runoff=0.12 cfs 0.054 af

Type II 24-hr 2-yr Rainfall=2.80"

Page 2 8/27/2010

Subcatchment 217:

Runoff Area=38.170 ac Runoff Depth=0.17" Flow Length=660' Tc=22.6 min CN=56 Runoff=1.67 cfs 0.528 af

Subcatchment 218:

Runoff Area=1.260 ac Runoff Depth=0.06" Flow Length=270' Tc=13.1 min CN=50 Runoff=0.01 cfs 0.006 af

Subcatchment 219:

Runoff Area=80.650 ac Runoff Depth=0.07" Flow Length=660' Tc=30.8 min CN=51 Runoff=0.68 cfs 0.495 af

Reach 202-R1:

Inflow=0.39 cfs 0.180 af Outflow=0.39 cfs 0.180 af

Reach 203-R:

Inflow=0.96 cfs 0.305 af Outflow=0.96 cfs 0.305 af

Reach 212-R1:

Inflow=0.57 cfs 0.251 af Outflow=0.57 cfs 0.251 af

Reach 212-R2: (new Reach)

Inflow=0.33 cfs 0.142 af Outflow=0.33 cfs 0.142 af

Reach Cannon-1: (new Reach)

Inflow=10.70 cfs 5.986 af Outflow=10.70 cfs 5.986 af

Reach Cannon-2:

Inflow=6.84 cfs 3.842 af Outflow=6.84 cfs 3.842 af

Reach Cannon-3:

Inflow=0.39 cfs 0.171 af Outflow=0.39 cfs 0.171 af

Reach Heath-1:

Inflow=4.55 cfs 2.143 af Outflow=4.55 cfs 2.143 af

Reach Heath-2:

Inflow=4.46 cfs 1.976 af Outflow=4.46 cfs 1.976 af

Reach Heath-3:

Inflow=3.17 cfs 1.447 af Outflow=3.17 cfs 1.447 af

Reach Heath-4:

Inflow=2.88 cfs 1.047 af Outflow=2.88 cfs 1.047 af

Reach Rice-0:

Inflow=6.40 cfs 3.570 af Outflow=6.40 cfs 3.570 af

Reach Rice-1:

Inflow=5.74 cfs 3.075 af Outflow=5.74 cfs 3.075 af

Reach Rice-2:

Inflow=3.36 cfs 1.908 af Outflow=3.36 cfs 1.908 af

Reach Rice-3:

Type II 24-hr 2-yr Rainfall=2.80" Page 3 8/27/2010 Inflow=2.40 cfs 1.383 af Outflow=2.40 cfs 1.383 af

Total Runoff Area = 517.330 ac Runoff Volume = 5.986 af Average Runoff Depth = 0.14"

Type II 24-hr 2-yr Rainfall=2.80"

Page 4 8/27/2010

Subcatchment 201: Runoff

0.13 cfs @ 12.64 hrs, Volume=

0.055 af, Depth= 0.14"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 4.540

CN 55

Description Big Woods (HSG B)

Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 26.3 100 0.0143 0.1 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 6.0 200 0.0125 0.6 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 32.3 300 Total

Subcatchment 202: Runoff

0.79 cfs @ 12.76 hrs, Volume=

0.318 af, Depth= 0.17"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 21.900 1.090 22.990

CN 55 70 56

Description Big Woods (HSG B) Big Woods (HSG C) Weighted Average

Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 20.6 100 0.0263 0.1 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 23.8 760 0.0113 0.5 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 44.4 860 Total

Subcatchment 203: Runoff

2.06 cfs @ 12.76 hrs, Volume=

0.741 af, Depth= 0.19"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 41.040 6.090 47.130

CN 55 70 57

Description Big Woods (HSG B) Big Woods (HSG C) Weighted Average

Type II 24-hr 2-yr Rainfall=2.80"

Page 5 8/27/2010

Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 19.7 100 0.0293 0.1 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 27.3 1,560 0.0363 1.0 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 47.0 1,660 Total

Subcatchment 204: Runoff

0.98 cfs @ 13.38 hrs, Volume=

0.526 af, Depth= 0.14"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 0.130 43.410 43.540

CN 35 55 55

Description Big Woods (HSG A Big Woods (HSG B) Weighted Average

Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.2 100 0.0560 0.1 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 54.8 1,560 0.0090 0.5 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 70.0 1,660 Total

Subcatchment 205: Runoff

0.39 cfs @ 12.84 hrs, Volume=

0.180 af, Depth= 0.14"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 14.900

CN 55

Description Big Woods (HSG B)

Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 33.3 100 0.0079 0.1 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 11.8 630 0.0317 0.9 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 45.1 730 Total

Type II 24-hr 2-yr Rainfall=2.80"

Page 6 8/27/2010

Subcatchment 206: Runoff

0.24 cfs @ 13.81 hrs, Volume=

0.167 af, Depth= 0.09"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 6.070 14.060 2.370 22.500

CN 35 55 77 52

Description Big Woods (HSG A) Big Woods (HSG B) Big Woods (HSG D) Weighted Average

Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 30.5 100 0.0098 0.1 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 21.5 1,110 0.0297 0.9 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 52.0 1,210 Total

Subcatchment 207: Runoff

1.45 cfs @ 13.42 hrs, Volume=

0.669 af, Depth= 0.19"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 0.040 36.330 6.160 42.530

CN 35 55 70 57

Description Big Woods (HSG A) Big Woods (HSG B) Big Woods (HSG C) Weighted Average

Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 28.4 100 0.0118 0.1 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 55.3 2,105 0.0161 0.6 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 83.7 2,205 Total

Subcatchment 208: Runoff

0.14 cfs @ 13.90 hrs, Volume=

0.101 af, Depth= 0.07"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80"

Type II 24-hr 2-yr Rainfall=2.80"

Area (ac) 3.300 13.230 16.530

CN 35 55 51

Page 7 8/27/2010

Description Big Woods (HSG A) Big Woods (HSG B) Weighted Average

Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 100 0.0583 0.1 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 23.0 1,175 0.0290 0.9 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 38.0 1,275 Total

Subcatchment 209: Runoff

0.39 cfs @ 12.75 hrs, Volume=

0.171 af, Depth= 0.14"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 14.190

CN 55

Description Big Woods (HSG B)

Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 21.1 100 0.0247 0.1 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 17.9 790 0.0216 0.7 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 39.0 890 Total

Subcatchment 211: Runoff

0.33 cfs @ 12.69 hrs, Volume=

0.142 af, Depth= 0.14"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 11.660 0.070 11.730

CN 55 70 55

Description Big Woods (HSG B) Big Woods (HSG C) Weighted Average

Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 19.7 100 0.0294 0.1 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 16.3 980 0.0402 1.0 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 36.0 1,080 Total

Type II 24-hr 2-yr Rainfall=2.80"

Page 8 8/27/2010

Subcatchment 212: Runoff

1.97 cfs @ 13.69 hrs, Volume=

1.126 af, Depth= 0.14"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 93.230

CN 55

Description Big Woods (HSG B)

Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.8 100 0.0150 0.1 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 59.8 2,810 0.0245 0.8 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 85.6 2,910 Total

Subcatchment 213: Runoff

0.67 cfs @ 13.68 hrs, Volume=

0.401 af, Depth= 0.13"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 1.200 37.050 0.210 38.460

CN 35 55 77 54

Description Big Woods (HSG A) Big Woods (HSG B) Big Woods (HSG D) Weighted Average

Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.9 100 0.0842 0.1 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 60.9 2,410 0.0174 0.7 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 73.8 2,510 Total

Subcatchment 214: Runoff

0.85 cfs @ 12.43 hrs, Volume=

0.250 af, Depth= 0.19"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 13.310 2.600 15.910

CN 55 70 57

Description Big Woods (HSG B) Big Woods (HSG C) Weighted Average

Type II 24-hr 2-yr Rainfall=2.80"

Page 9 8/27/2010

Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 16.0 100 0.0492 0.1 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 13.3 840 0.0440 1.0 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 29.3 940 Total

Subcatchment 215: Runoff

0.13 cfs @ 12.64 hrs, Volume=

0.055 af, Depth= 0.14"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 4.580

CN 55

Description Big Woods (HSG B)

Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 18.5 100 0.0345 0.1 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 14.0 845 0.0402 1.0 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 32.5 945 Total

Subcatchment 216: Runoff

0.12 cfs @ 12.79 hrs, Volume=

0.054 af, Depth= 0.14"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 4.490

CN 55

Description Big Woods (HSG B)

Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 24.6 100 0.0169 0.1 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 17.1 590 0.0132 0.6 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 41.7 690 Total

Type II 24-hr 2-yr Rainfall=2.80"

Page 10 8/27/2010

Subcatchment 217: Runoff

1.67 cfs @ 12.33 hrs, Volume=

0.528 af, Depth= 0.17"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 0.920 35.180 2.070 38.170

CN 35 55 77 56

Description Big Woods (HSG A) Big Woods (HSG B) Big Woods (HSG D) Weighted Average

Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0667 0.1 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 8.4 560 0.0491 1.1 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 22.6 660 Total

Subcatchment 218: Runoff

0.01 cfs @ 15.02 hrs, Volume=

0.006 af, Depth= 0.06"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 0.330 0.930 1.260

CN 35 55 50

Description Big Woods (HSG A) Big Woods (HSG B) Weighted Average

Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.3 100 0.1495 0.2 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 2.8 170 0.0400 1.0 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 13.1 270 Total

Subcatchment 219: Runoff

0.68 cfs @ 13.73 hrs, Volume=

0.495 af, Depth= 0.07"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80"

Type II 24-hr 2-yr Rainfall=2.80"

Area (ac) 15.350 65.190 0.110 80.650

CN 35 55 70 51

Page 11 8/27/2010

Description Big Woods (HSG A) Big Woods (HSG B) Big Woods (HSG C) Weighted Average

Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 21.6 100 0.0232 0.1 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 9.2 560 0.0411 1.0 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 30.8 660 Total

Reach 202-R1: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

14.900 ac, Inflow Depth = 0.14" for 2-yr event 0.39 cfs @ 12.84 hrs, Volume= 0.180 af 0.39 cfs @ 12.84 hrs, Volume= 0.180 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach 203-R: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

20.490 ac, Inflow Depth = 0.18" for 2-yr event 0.96 cfs @ 12.45 hrs, Volume= 0.305 af 0.96 cfs @ 12.45 hrs, Volume= 0.305 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach 212-R1: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

20.760 ac, Inflow Depth = 0.14" for 2-yr event 0.57 cfs @ 12.71 hrs, Volume= 0.251 af 0.57 cfs @ 12.71 hrs, Volume= 0.251 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Type II 24-hr 2-yr Rainfall=2.80"

Page 12 8/27/2010

Reach 212-R2: (new Reach) [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

11.730 ac, Inflow Depth = 0.14" for 2-yr event 0.33 cfs @ 12.69 hrs, Volume= 0.142 af 0.33 cfs @ 12.69 hrs, Volume= 0.142 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Cannon-1: (new Reach) [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

517.330 ac, Inflow Depth = 0.14" for 2-yr event 10.70 cfs @ 13.29 hrs, Volume= 5.986 af 10.70 cfs @ 13.29 hrs, Volume= 5.986 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Cannon-2: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

350.580 ac, Inflow Depth = 0.13" for 2-yr event 6.84 cfs @ 13.43 hrs, Volume= 3.842 af 6.84 cfs @ 13.43 hrs, Volume= 3.842 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Cannon-3: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

14.190 ac, Inflow Depth = 0.14" for 2-yr event 0.39 cfs @ 12.75 hrs, Volume= 0.171 af 0.39 cfs @ 12.75 hrs, Volume= 0.171 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Heath-1: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

166.750 ac, Inflow Depth = 0.15" for 2-yr event 4.55 cfs @ 12.70 hrs, Volume= 2.143 af 4.55 cfs @ 12.70 hrs, Volume= 2.143 af, Atten= 0%, Lag= 0.0 min

Type II 24-hr 2-yr Rainfall=2.80"

Page 13 8/27/2010

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Heath-2: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

144.250 ac, Inflow Depth = 0.16" for 2-yr event 4.46 cfs @ 12.67 hrs, Volume= 1.976 af 4.46 cfs @ 12.67 hrs, Volume= 1.976 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Heath-3: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

106.080 ac, Inflow Depth = 0.16" for 2-yr event 3.17 cfs @ 12.77 hrs, Volume= 1.447 af 3.17 cfs @ 12.77 hrs, Volume= 1.447 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Heath-4: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

67.620 ac, Inflow Depth = 0.19" for 2-yr event 2.88 cfs @ 12.71 hrs, Volume= 1.047 af 2.88 cfs @ 12.71 hrs, Volume= 1.047 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Rice-0: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

319.860 ac, Inflow Depth = 0.13" for 2-yr event 6.40 cfs @ 13.44 hrs, Volume= 3.570 af 6.40 cfs @ 13.44 hrs, Volume= 3.570 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Rice-1: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

239.210 ac, Inflow Depth = 0.15" for 2-yr event 5.74 cfs @ 13.42 hrs, Volume= 3.075 af 5.74 cfs @ 13.42 hrs, Volume= 3.075 af, Atten= 0%, Lag= 0.0 min

Type II 24-hr 2-yr Rainfall=2.80"

Page 14 8/27/2010

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Rice-2: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

158.790 ac, Inflow Depth = 0.14" for 2-yr event 3.36 cfs @ 13.58 hrs, Volume= 1.908 af 3.36 cfs @ 13.58 hrs, Volume= 1.908 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Rice-3: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

115.250 ac, Inflow Depth = 0.14" for 2-yr event 2.40 cfs @ 13.61 hrs, Volume= 1.383 af 2.40 cfs @ 13.61 hrs, Volume= 1.383 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Type II 24-hr 100-yr Rainfall=6.10"

Page 15 8/27/2010

Time span=0.00-72.00 hrs, dt=0.05 hrs, 1441 points Runoff by SCS TR-20 method, UH=SCS Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment 201:

Runoff Area=4.540 ac Runoff Depth=1.58" Flow Length=300' Tc=32.3 min CN=55 Runoff=5.13 cfs 0.596 af

Subcatchment 202:

Runoff Area=22.990 ac Runoff Depth=1.66" Flow Length=860' Tc=44.4 min CN=56 Runoff=22.03 cfs 3.172 af

Subcatchment 203:

Runoff Area=47.130 ac Runoff Depth=1.74" Flow Length=1,660' Tc=47.0 min CN=57 Runoff=46.19 cfs 6.822 af

Subcatchment 204:

Runoff Area=43.540 ac Runoff Depth=1.58" Flow Length=1,660' Tc=70.0 min CN=55 Runoff=27.96 cfs 5.717 af

Subcatchment 205:

Runoff Area=14.900 ac Runoff Depth=1.58" Flow Length=730' Tc=45.1 min CN=55 Runoff=13.20 cfs 1.956 af

Subcatchment 206:

Runoff Area=22.500 ac Runoff Depth=1.34" Flow Length=1,210' Tc=52.0 min CN=52 Runoff=14.35 cfs 2.516 af

Subcatchment 207:

Runoff Area=42.530 ac Runoff Depth=1.74" Flow Length=2,205' Tc=83.7 min CN=57 Runoff=26.97 cfs 6.156 af

Subcatchment 208:

Runoff Area=16.530 ac Runoff Depth=1.27" Flow Length=1,275' Tc=38.0 min CN=51 Runoff=12.20 cfs 1.745 af

Subcatchment 209:

Runoff Area=14.190 ac Runoff Depth=1.58" Flow Length=890' Tc=39.0 min CN=55 Runoff=13.97 cfs 1.863 af

Subcatchment 211:

Runoff Area=11.730 ac Runoff Depth=1.58" Flow Length=1,080' Tc=36.0 min CN=55 Runoff=12.26 cfs 1.540 af

Subcatchment 212:

Runoff Area=93.230 ac Runoff Depth=1.58" Flow Length=2,910' Tc=85.6 min CN=55 Runoff=51.48 cfs 12.241 af

Subcatchment 213:

Runoff Area=38.460 ac Runoff Depth=1.50" Flow Length=2,510' Tc=73.8 min CN=54 Runoff=22.11 cfs 4.796 af

Subcatchment 214:

Runoff Area=15.910 ac Runoff Depth=1.74" Flow Length=940' Tc=29.3 min CN=57 Runoff=21.89 cfs 2.303 af

Subcatchment 215:

Runoff Area=4.580 ac Runoff Depth=1.58" Flow Length=945' Tc=32.5 min CN=55 Runoff=5.15 cfs 0.601 af

Subcatchment 216:

Runoff Area=4.490 ac Runoff Depth=1.58" Flow Length=690' Tc=41.7 min CN=55 Runoff=4.22 cfs 0.590 af

Type II 24-hr 100-yr Rainfall=6.10"

Page 16 8/27/2010

Subcatchment 217:

Runoff Area=38.170 ac Runoff Depth=1.66" Flow Length=660' Tc=22.6 min CN=56 Runoff=58.67 cfs 5.267 af

Subcatchment 218:

Runoff Area=1.260 ac Runoff Depth=1.19" Flow Length=270' Tc=13.1 min CN=50 Runoff=1.74 cfs 0.125 af

Subcatchment 219:

Runoff Area=80.650 ac Runoff Depth=1.27" Flow Length=660' Tc=30.8 min CN=51 Runoff=69.34 cfs 8.511 af

Reach 202-R1:

Inflow=13.20 cfs 1.956 af Outflow=13.20 cfs 1.956 af

Reach 203-R:

Inflow=26.95 cfs 2.904 af Outflow=26.95 cfs 2.904 af

Reach 212-R1:

Inflow=21.32 cfs 2.726 af Outflow=21.32 cfs 2.726 af

Reach 212-R2: (new Reach)

Inflow=12.26 cfs 1.540 af Outflow=12.26 cfs 1.540 af

Reach Cannon-1: (new Reach)

Inflow=311.90 cfs 66.519 af Outflow=311.90 cfs 66.519 af

Reach Cannon-2:

Inflow=192.03 cfs 44.213 af Outflow=192.03 cfs 44.213 af

Reach Cannon-3:

Inflow=13.97 cfs 1.863 af Outflow=13.97 cfs 1.863 af

Reach Heath-1:

Inflow=125.02 cfs 22.306 af Outflow=125.02 cfs 22.306 af

Reach Heath-2:

Inflow=116.92 cfs 19.790 af Outflow=116.92 cfs 19.790 af

Reach Heath-3:

Inflow=78.80 cfs 14.523 af Outflow=78.80 cfs 14.523 af

Reach Heath-4:

Inflow=66.68 cfs 9.727 af Outflow=66.68 cfs 9.727 af

Reach Rice-0:

Inflow=166.93 cfs 40.605 af Outflow=166.93 cfs 40.605 af

Reach Rice-1:

Inflow=133.70 cfs 32.094 af Outflow=133.70 cfs 32.094 af

Reach Rice-2:

Inflow=86.01 cfs 20.809 af Outflow=86.01 cfs 20.809 af

Reach Rice-3:

Type II 24-hr 100-yr Rainfall=6.10" Page 17 8/27/2010 Inflow=58.82 cfs 15.092 af Outflow=58.82 cfs 15.092 af

Total Runoff Area = 517.330 ac Runoff Volume = 66.519 af Average Runoff Depth = 1.54"

Type II 24-hr 100-yr Rainfall=6.10"

Page 18 8/27/2010

Subcatchment 201: Runoff

5.13 cfs @ 12.31 hrs, Volume=

0.596 af, Depth= 1.58"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 4.540

CN 55

Description Big Woods (HSG B)

Subcatchment 202: Runoff

22.03 cfs @ 12.47 hrs, Volume=

3.172 af, Depth= 1.66"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 21.900 1.090 22.990

CN 55 70 56

Description Big Woods (HSG B) Big Woods (HSG C) Weighted Average

Subcatchment 203: Runoff

46.19 cfs @ 12.50 hrs, Volume=

6.822 af, Depth= 1.74"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 41.040 6.090 47.130

CN 55 70 57

Description Big Woods (HSG B) Big Woods (HSG C) Weighted Average

Type II 24-hr 100-yr Rainfall=6.10"

Page 19 8/27/2010

Subcatchment 204: Runoff

27.96 cfs @ 12.84 hrs, Volume=

5.717 af, Depth= 1.58"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 0.130 43.410 43.540

CN 35 55 55

Description Big Woods (HSG A Big Woods (HSG B) Weighted Average

Subcatchment 205: Runoff

13.20 cfs @ 12.49 hrs, Volume=

1.956 af, Depth= 1.58"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 14.900

CN 55

Description Big Woods (HSG B)

Type II 24-hr 100-yr Rainfall=6.10"

Page 20 8/27/2010

Subcatchment 206: Runoff

14.35 cfs @ 12.60 hrs, Volume=

2.516 af, Depth= 1.34"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 6.070 14.060 2.370 22.500

CN 35 55 77 52

Description Big Woods (HSG A) Big Woods (HSG B) Big Woods (HSG D) Weighted Average

Subcatchment 207: Runoff

26.97 cfs @ 13.02 hrs, Volume=

6.156 af, Depth= 1.74"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 0.040 36.330 6.160 42.530

CN 35 55 70 57

Description Big Woods (HSG A) Big Woods (HSG B) Big Woods (HSG C) Weighted Average

Subcatchment 208: Runoff

12.20 cfs @ 12.41 hrs, Volume=

1.745 af, Depth= 1.27"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10"

Type II 24-hr 100-yr Rainfall=6.10"

Area (ac) 3.300 13.230 16.530

CN 35 55 51

Page 21 8/27/2010

Description Big Woods (HSG A) Big Woods (HSG B) Weighted Average

Subcatchment 209: Runoff

13.97 cfs @ 12.40 hrs, Volume=

1.863 af, Depth= 1.58"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 14.190

CN 55

Description Big Woods (HSG B)

Subcatchment 211: Runoff

12.26 cfs @ 12.36 hrs, Volume=

1.540 af, Depth= 1.58"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 11.660 0.070 11.730

CN 55 70 55

Description Big Woods (HSG B) Big Woods (HSG C) Weighted Average

Type II 24-hr 100-yr Rainfall=6.10"

Page 22 8/27/2010

Subcatchment 212: Runoff

51.48 cfs @ 13.05 hrs, Volume=

12.241 af, Depth= 1.58"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 93.230

CN 55

Description Big Woods (HSG B)

Subcatchment 213: Runoff

22.11 cfs @ 12.89 hrs, Volume=

4.796 af, Depth= 1.50"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 1.200 37.050 0.210 38.460

CN 35 55 77 54

Description Big Woods (HSG A) Big Woods (HSG B) Big Woods (HSG D) Weighted Average

Subcatchment 214: Runoff

21.89 cfs @ 12.26 hrs, Volume=

2.303 af, Depth= 1.74"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 13.310 2.600 15.910

CN 55 70 57

Description Big Woods (HSG B) Big Woods (HSG C) Weighted Average

Type II 24-hr 100-yr Rainfall=6.10"

Page 23 8/27/2010

Subcatchment 215: Runoff

5.15 cfs @ 12.31 hrs, Volume=

0.601 af, Depth= 1.58"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 4.580

CN 55

Description Big Woods (HSG B)

Subcatchment 216: Runoff

4.22 cfs @ 12.44 hrs, Volume=

0.590 af, Depth= 1.58"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 4.490

CN 55

Description Big Woods (HSG B)

Type II 24-hr 100-yr Rainfall=6.10"

Page 24 8/27/2010

Subcatchment 217: Runoff

58.67 cfs @ 12.18 hrs, Volume=

5.267 af, Depth= 1.66"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 0.920 35.180 2.070 38.170

CN 35 55 77 56

Description Big Woods (HSG A) Big Woods (HSG B) Big Woods (HSG D) Weighted Average

Subcatchment 218: Runoff

1.74 cfs @ 12.07 hrs, Volume=

0.125 af, Depth= 1.19"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 0.330 0.930 1.260

CN 35 55 50

Description Big Woods (HSG A) Big Woods (HSG B) Weighted Average

Subcatchment 219: Runoff

69.34 cfs @ 12.30 hrs, Volume=

8.511 af, Depth= 1.27"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10"

Type II 24-hr 100-yr Rainfall=6.10"

Area (ac) 15.350 65.190 0.110 80.650

CN 35 55 70 51

Page 25 8/27/2010

Description Big Woods (HSG A) Big Woods (HSG B) Big Woods (HSG C) Weighted Average

Reach 202-R1: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

14.900 ac, Inflow Depth = 1.58" for 100-yr event 13.20 cfs @ 12.49 hrs, Volume= 1.956 af 13.20 cfs @ 12.49 hrs, Volume= 1.956 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach 203-R: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

20.490 ac, Inflow Depth = 1.70" for 100-yr event 26.95 cfs @ 12.27 hrs, Volume= 2.904 af 26.95 cfs @ 12.27 hrs, Volume= 2.904 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach 212-R1: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

20.760 ac, Inflow Depth = 1.58" for 100-yr event 21.32 cfs @ 12.36 hrs, Volume= 2.726 af 21.32 cfs @ 12.36 hrs, Volume= 2.726 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Type II 24-hr 100-yr Rainfall=6.10"

Page 26 8/27/2010

Reach 212-R2: (new Reach) [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

11.730 ac, Inflow Depth = 1.58" for 100-yr event 12.26 cfs @ 12.36 hrs, Volume= 1.540 af 12.26 cfs @ 12.36 hrs, Volume= 1.540 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Cannon-1: (new Reach) [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

517.330 ac, Inflow Depth = 1.54" for 100-yr event 311.90 cfs @ 12.42 hrs, Volume= 66.519 af 311.90 cfs @ 12.42 hrs, Volume= 66.519 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Cannon-2: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

350.580 ac, Inflow Depth = 1.51" for 100-yr event 192.03 cfs @ 12.47 hrs, Volume= 44.213 af 192.03 cfs @ 12.47 hrs, Volume= 44.213 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Cannon-3: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

14.190 ac, Inflow Depth = 1.58" for 100-yr event 13.97 cfs @ 12.40 hrs, Volume= 1.863 af 13.97 cfs @ 12.40 hrs, Volume= 1.863 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Heath-1: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

166.750 ac, Inflow Depth = 1.61" for 100-yr event 125.02 cfs @ 12.31 hrs, Volume= 22.306 af 125.02 cfs @ 12.31 hrs, Volume= 22.306 af, Atten= 0%, Lag= 0.0 min

Type II 24-hr 100-yr Rainfall=6.10"

Page 27 8/27/2010

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Heath-2: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

144.250 ac, Inflow Depth = 1.65" for 100-yr event 116.92 cfs @ 12.27 hrs, Volume= 19.790 af 116.92 cfs @ 12.27 hrs, Volume= 19.790 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Heath-3: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

106.080 ac, Inflow Depth = 1.64" for 100-yr event 78.80 cfs @ 12.48 hrs, Volume= 14.523 af 78.80 cfs @ 12.48 hrs, Volume= 14.523 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Heath-4: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

67.620 ac, Inflow Depth = 1.73" for 100-yr event 66.68 cfs @ 12.40 hrs, Volume= 9.727 af 66.68 cfs @ 12.40 hrs, Volume= 9.727 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Rice-0: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

319.860 ac, Inflow Depth = 1.52" for 100-yr event 166.93 cfs @ 12.53 hrs, Volume= 40.605 af 166.93 cfs @ 12.53 hrs, Volume= 40.605 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Rice-1: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

239.210 ac, Inflow Depth = 1.61" for 100-yr event 133.70 cfs @ 12.83 hrs, Volume= 32.094 af 133.70 cfs @ 12.83 hrs, Volume= 32.094 af, Atten= 0%, Lag= 0.0 min

Type II 24-hr 100-yr Rainfall=6.10"

Page 28 8/27/2010

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Rice-2: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

158.790 ac, Inflow Depth = 1.57" for 100-yr event 86.01 cfs @ 12.90 hrs, Volume= 20.809 af 86.01 cfs @ 12.90 hrs, Volume= 20.809 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Rice-3: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

115.250 ac, Inflow Depth = 1.57" for 100-yr event 58.82 cfs @ 12.99 hrs, Volume= 15.092 af 58.82 cfs @ 12.99 hrs, Volume= 15.092 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

215

203

214 Heath-4

203-R

211

Heath-2

217 212-R2

(new Reach)

201

Heath-3

213 212

206

212-R1

207

Heath-1

204 216

208 219

218 Rice-1 Rice-2

Rice-0

Cannon-1

202

Rice-3

(new Reach) Cannon-2

202-R1

209

205 Cannon-3

Subcat

Reach

Pond

Link

Type II 24-hr 2-yr Rainfall=2.80"

Page 1 8/27/2010

Time span=0.00-72.00 hrs, dt=0.05 hrs, 1441 points Runoff by SCS TR-20 method, UH=SCS Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment 201:

Runoff Area=4.540 ac Runoff Depth=0.61" Flow Length=300' Tc=32.3 min CN=70 Runoff=1.84 cfs 0.229 af

Subcatchment 202:

Runoff Area=22.990 ac Runoff Depth=0.61" Flow Length=860' Tc=44.4 min CN=70 Runoff=7.39 cfs 1.161 af

Subcatchment 203:

Runoff Area=47.130 ac Runoff Depth=0.65" Flow Length=1,660' Tc=47.0 min CN=71 Runoff=15.99 cfs 2.546 af

Subcatchment 204:

Runoff Area=43.540 ac Runoff Depth=0.61" Flow Length=1,660' Tc=70.0 min CN=70 Runoff=10.06 cfs 2.199 af

Subcatchment 205:

Runoff Area=14.900 ac Runoff Depth=0.61" Flow Length=730' Tc=45.1 min CN=70 Runoff=4.73 cfs 0.752 af

Subcatchment 206:

Runoff Area=22.500 ac Runoff Depth=0.53" Flow Length=1,210' Tc=52.0 min CN=68 Runoff=5.26 cfs 0.987 af

Subcatchment 207:

Runoff Area=42.530 ac Runoff Depth=0.65" Flow Length=2,205' Tc=83.7 min CN=71 Runoff=9.40 cfs 2.297 af

Subcatchment 208:

Runoff Area=16.530 ac Runoff Depth=0.49" Flow Length=1,275' Tc=38.0 min CN=67 Runoff=4.32 cfs 0.673 af

Subcatchment 209:

Runoff Area=14.190 ac Runoff Depth=0.61" Flow Length=890' Tc=39.0 min CN=70 Runoff=5.01 cfs 0.717 af

Subcatchment 211:

Runoff Area=11.730 ac Runoff Depth=0.61" Flow Length=1,080' Tc=36.0 min CN=70 Runoff=4.40 cfs 0.592 af

Subcatchment 212:

Runoff Area=93.230 ac Runoff Depth=0.61" Flow Length=2,910' Tc=85.6 min CN=70 Runoff=18.55 cfs 4.708 af

Subcatchment 213:

Runoff Area=38.460 ac Runoff Depth=0.61" Flow Length=2,510' Tc=73.8 min CN=70 Runoff=8.53 cfs 1.942 af

Subcatchment 214:

Runoff Area=15.910 ac Runoff Depth=0.65" Flow Length=940' Tc=29.3 min CN=71 Runoff=7.60 cfs 0.859 af

Subcatchment 215:

Runoff Area=4.580 ac Runoff Depth=0.61" Flow Length=945' Tc=32.5 min CN=70 Runoff=1.85 cfs 0.231 af

Subcatchment 216:

Runoff Area=4.490 ac Runoff Depth=0.61" Flow Length=690' Tc=41.7 min CN=70 Runoff=1.51 cfs 0.227 af

Type II 24-hr 2-yr Rainfall=2.80"

Page 2 8/27/2010

Subcatchment 217:

Runoff Area=38.170 ac Runoff Depth=0.17" Flow Length=660' Tc=22.6 min CN=56 Runoff=1.67 cfs 0.528 af

Subcatchment 218:

Runoff Area=1.260 ac Runoff Depth=0.06" Flow Length=270' Tc=13.1 min CN=50 Runoff=0.01 cfs 0.006 af

Subcatchment 219:

Runoff Area=80.650 ac Runoff Depth=0.07" Flow Length=660' Tc=30.8 min CN=51 Runoff=0.68 cfs 0.495 af

Reach 202-R1:

Inflow=4.73 cfs 0.752 af Outflow=4.73 cfs 0.752 af

Reach 203-R:

Inflow=9.40 cfs 1.091 af Outflow=9.40 cfs 1.091 af

Reach 212-R1:

Inflow=7.64 cfs 1.048 af Outflow=7.64 cfs 1.048 af

Reach 212-R2: (new Reach)

Inflow=4.40 cfs 0.592 af Outflow=4.40 cfs 0.592 af

Reach Cannon-1: (new Reach)

Inflow=86.26 cfs 21.151 af Outflow=86.26 cfs 21.151 af

Reach Cannon-2:

Inflow=53.25 cfs 14.057 af Outflow=53.25 cfs 14.057 af

Reach Cannon-3:

Inflow=5.01 cfs 0.717 af Outflow=5.01 cfs 0.717 af

Reach Heath-1:

Inflow=34.51 cfs 7.094 af Outflow=34.51 cfs 7.094 af

Reach Heath-2:

Inflow=29.47 cfs 6.107 af Outflow=29.47 cfs 6.107 af

Reach Heath-3:

Inflow=27.94 cfs 5.579 af Outflow=27.94 cfs 5.579 af

Reach Heath-4:

Inflow=23.07 cfs 3.636 af Outflow=23.07 cfs 3.636 af

Reach Rice-0:

Inflow=47.98 cfs 12.667 af Outflow=47.98 cfs 12.667 af

Reach Rice-1:

Inflow=47.52 cfs 12.173 af Outflow=47.52 cfs 12.173 af

Reach Rice-2:

Inflow=31.00 cfs 7.962 af Outflow=31.00 cfs 7.962 af

Reach Rice-3:

Type II 24-hr 2-yr Rainfall=2.80" Page 3 8/27/2010 Inflow=21.25 cfs 5.763 af Outflow=21.25 cfs 5.763 af

Total Runoff Area = 517.330 ac Runoff Volume = 21.151 af Average Runoff Depth = 0.49"

Type II 24-hr 2-yr Rainfall=2.80"

Page 4 8/27/2010

Subcatchment 201: Runoff

1.84 cfs @ 12.32 hrs, Volume=

0.229 af, Depth= 0.61"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 4.540

CN 70

Description Cropland - HSG B

Subcatchment 202: Runoff

7.39 cfs @ 12.49 hrs, Volume=

1.161 af, Depth= 0.61"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 21.900 1.090 22.990

CN 70 79 70

Description Cropland - HSG B Cropland - HSG C Weighted Average

Subcatchment 203: Runoff

15.99 cfs @ 12.52 hrs, Volume=

2.546 af, Depth= 0.65"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 41.040 6.090 47.130

CN 70 79 71

Description Cropland - HSG B Cropland - HSG C Weighted Average

Type II 24-hr 2-yr Rainfall=2.80"

Page 5 8/27/2010

Subcatchment 204: Runoff

10.06 cfs @ 12.86 hrs, Volume=

2.199 af, Depth= 0.61"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 0.130 43.410 43.540

CN 56 70 70

Description Cropland - HSG A Cropland - HSG B Weighted Average

Subcatchment 205: Runoff

4.73 cfs @ 12.50 hrs, Volume=

0.752 af, Depth= 0.61"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 14.900

CN 70

Description Cropland - HSG B

Type II 24-hr 2-yr Rainfall=2.80"

Page 6 8/27/2010

Subcatchment 206: Runoff

5.26 cfs @ 12.63 hrs, Volume=

0.987 af, Depth= 0.53"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 6.070 14.060 2.370 22.500

CN 56 70 83 68

Description Cropland - HSG A Cropland - HSG B Cropland - HSG D Weighted Average

Subcatchment 207: Runoff

9.40 cfs @ 13.08 hrs, Volume=

2.297 af, Depth= 0.65"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 0.040 36.330 6.160 42.530

CN 56 70 79 71

Description Cropland - HSG A Cropland - HSG B Cropland - HSG C Weighted Average

Subcatchment 208: Runoff

4.32 cfs @ 12.42 hrs, Volume=

0.673 af, Depth= 0.49"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80"

Type II 24-hr 2-yr Rainfall=2.80"

Area (ac) 3.300 13.230 16.530

CN 56 70 67

Page 7 8/27/2010

Description Cropland - HSG A Cropland - HSG B Weighted Average

Subcatchment 209: Runoff

5.01 cfs @ 12.42 hrs, Volume=

0.717 af, Depth= 0.61"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 14.190

CN 70

Description Cropland - HSG B

Subcatchment 211: Runoff

4.40 cfs @ 12.37 hrs, Volume=

0.592 af, Depth= 0.61"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 11.660 0.070 11.730

CN 70 79 70

Description Cropland - HSG B Cropland - HSG C Weighted Average

Type II 24-hr 2-yr Rainfall=2.80"

Page 8 8/27/2010

Subcatchment 212: Runoff

18.55 cfs @ 13.06 hrs, Volume=

4.708 af, Depth= 0.61"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 93.230

CN 70

Description Cropland - HSG B

Subcatchment 213: Runoff

8.53 cfs @ 12.91 hrs, Volume=

1.942 af, Depth= 0.61"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 1.200 37.050 0.210 38.460

CN 56 70 83 70

Description Cropland - HSG A Cropland - HSG B Cropland - HSG D Weighted Average

Subcatchment 214: Runoff

7.60 cfs @ 12.27 hrs, Volume=

0.859 af, Depth= 0.65"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 13.310 2.600 15.910

CN 70 79 71

Description Cropland - HSG B Cropland - HSG C Weighted Average

Type II 24-hr 2-yr Rainfall=2.80"

Page 9 8/27/2010

Subcatchment 215: Runoff

1.85 cfs @ 12.32 hrs, Volume=

0.231 af, Depth= 0.61"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 4.580

CN 70

Description Cropland - HSG B

Subcatchment 216: Runoff

1.51 cfs @ 12.45 hrs, Volume=

0.227 af, Depth= 0.61"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 4.490

CN 70

Description Cropland - HSG B

Type II 24-hr 2-yr Rainfall=2.80"

Page 10 8/27/2010

Subcatchment 217: Runoff

1.67 cfs @ 12.33 hrs, Volume=

0.528 af, Depth= 0.17"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 0.920 35.180 2.070 38.170

CN 35 55 77 56

Description Big Woods (HSG A) Big Woods (HSG B) Big Woods (HSG D) Weighted Average

Subcatchment 218: Runoff

0.01 cfs @ 15.02 hrs, Volume=

0.006 af, Depth= 0.06"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 0.330 0.930 1.260

CN 35 55 50

Description Big Woods (HSG A) Big Woods (HSG B) Weighted Average

Subcatchment 219: Runoff

0.68 cfs @ 13.73 hrs, Volume=

0.495 af, Depth= 0.07"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80"

Type II 24-hr 2-yr Rainfall=2.80"

Area (ac) 15.350 65.190 0.110 80.650

CN 35 55 70 51

Page 11 8/27/2010

Description Big Woods (HSG A) Big Woods (HSG B) Big Woods (HSG C) Weighted Average

Reach 202-R1: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

14.900 ac, Inflow Depth = 0.61" for 2-yr event 4.73 cfs @ 12.50 hrs, Volume= 0.752 af 4.73 cfs @ 12.50 hrs, Volume= 0.752 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach 203-R: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

20.490 ac, Inflow Depth = 0.64" for 2-yr event 9.40 cfs @ 12.28 hrs, Volume= 1.091 af 9.40 cfs @ 12.28 hrs, Volume= 1.091 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach 212-R1: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

20.760 ac, Inflow Depth = 0.61" for 2-yr event 7.64 cfs @ 12.37 hrs, Volume= 1.048 af 7.64 cfs @ 12.37 hrs, Volume= 1.048 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Type II 24-hr 2-yr Rainfall=2.80"

Page 12 8/27/2010

Reach 212-R2: (new Reach) [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

11.730 ac, Inflow Depth = 0.61" for 2-yr event 4.40 cfs @ 12.37 hrs, Volume= 0.592 af 4.40 cfs @ 12.37 hrs, Volume= 0.592 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Cannon-1: (new Reach) [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

517.330 ac, Inflow Depth = 0.49" for 2-yr event 86.26 cfs @ 12.64 hrs, Volume= 21.151 af 86.26 cfs @ 12.64 hrs, Volume= 21.151 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Cannon-2: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

350.580 ac, Inflow Depth = 0.48" for 2-yr event 53.25 cfs @ 12.76 hrs, Volume= 14.057 af 53.25 cfs @ 12.76 hrs, Volume= 14.057 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Cannon-3: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

14.190 ac, Inflow Depth = 0.61" for 2-yr event 5.01 cfs @ 12.42 hrs, Volume= 0.717 af 5.01 cfs @ 12.42 hrs, Volume= 0.717 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Heath-1: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

166.750 ac, Inflow Depth = 0.51" for 2-yr event 34.51 cfs @ 12.54 hrs, Volume= 7.094 af 34.51 cfs @ 12.54 hrs, Volume= 7.094 af, Atten= 0%, Lag= 0.0 min

Type II 24-hr 2-yr Rainfall=2.80"

Page 13 8/27/2010

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Heath-2: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

144.250 ac, Inflow Depth = 0.51" for 2-yr event 29.47 cfs @ 12.51 hrs, Volume= 6.107 af 29.47 cfs @ 12.51 hrs, Volume= 6.107 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Heath-3: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

106.080 ac, Inflow Depth = 0.63" for 2-yr event 27.94 cfs @ 12.51 hrs, Volume= 5.579 af 27.94 cfs @ 12.51 hrs, Volume= 5.579 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Heath-4: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

67.620 ac, Inflow Depth = 0.65" for 2-yr event 23.07 cfs @ 12.42 hrs, Volume= 3.636 af 23.07 cfs @ 12.42 hrs, Volume= 3.636 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Rice-0: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

319.860 ac, Inflow Depth = 0.48" for 2-yr event 47.98 cfs @ 12.86 hrs, Volume= 12.667 af 47.98 cfs @ 12.86 hrs, Volume= 12.667 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Rice-1: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

239.210 ac, Inflow Depth = 0.61" for 2-yr event 47.52 cfs @ 12.86 hrs, Volume= 12.173 af 47.52 cfs @ 12.86 hrs, Volume= 12.173 af, Atten= 0%, Lag= 0.0 min

Type II 24-hr 2-yr Rainfall=2.80"

Page 14 8/27/2010

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Rice-2: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

158.790 ac, Inflow Depth = 0.60" for 2-yr event 31.00 cfs @ 12.95 hrs, Volume= 7.962 af 31.00 cfs @ 12.95 hrs, Volume= 7.962 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

Reach Rice-3: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

115.250 ac, Inflow Depth = 0.60" for 2-yr event 21.25 cfs @ 13.02 hrs, Volume= 5.763 af 21.25 cfs @ 13.02 hrs, Volume= 5.763 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs

215 203

214 Heath-4

203-R

211

Heath-2

217 212-R2

(new Reach)

201

Heath-3

213 212

206

212-R1

207 Heath-1

204 216

208 218

219 Rice-1 Rice-2

Cannon-1

Rice-0

202

(new Reach)

Rice-3 Cannon-2

202-R1

209

205 Cannon-3

Subcat

Reach

Pond

Link

Type II 24-hr 2-yr Rainfall=2.80"

Page 1 8/27/2010

Time span=0.00-96.00 hrs, dt=0.05 hrs, 1921 points Runoff by SCS TR-20 method, UH=SCS Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment 201:

Runoff Area=4.540 ac Runoff Depth=0.14" Flow Length=300' Tc=32.3 min CN=55 Runoff=0.13 cfs 0.055 af

Subcatchment 202-I:

Runoff Area=27.660 ac Runoff Depth=2.57" Tc=10.0 min CN=98 Runoff=94.82 cfs 5.922 af

Subcatchment 202-P:

Runoff Area=9.520 ac Runoff Depth=0.29" Tc=20.0 min CN=61 Runoff=1.61 cfs 0.232 af

Subcatchment 203-I:

Runoff Area=21.310 ac Runoff Depth=2.57" Tc=10.0 min CN=98 Runoff=73.05 cfs 4.562 af

Subcatchment 203-P:

Runoff Area=56.740 ac Runoff Depth=0.32" Tc=20.0 min CN=62 Runoff=11.48 cfs 1.521 af

Subcatchment 204-I:

Runoff Area=35.290 ac Runoff Depth=2.57" Tc=10.0 min CN=98 Runoff=120.97 cfs 7.555 af

Subcatchment 204-P:

Subcatchment 205:

Subcatchment 206-I:

Subcatchment 206-P:

Subcatchment 207-I:

Runoff Area=17.020 ac Runoff Depth=0.29" Tc=20.0 min CN=61 Runoff=2.87 cfs 0.415 af Runoff Area=14.900 ac Runoff Depth=0.61" Flow Length=730' Tc=45.1 min CN=70 Runoff=4.73 cfs 0.752 af Runoff Area=31.730 ac Runoff Depth=2.57" Tc=10.0 min CN=98 Runoff=108.77 cfs 6.793 af Runoff Area=5.900 ac Runoff Depth=0.29" Tc=20.0 min CN=61 Runoff=0.99 cfs 0.144 af Runoff Area=36.380 ac Runoff Depth=2.57" Tc=10.0 min CN=98 Runoff=124.71 cfs 7.789 af

Subcatchment 207-P:

Runoff Area=13.880 ac Runoff Depth=0.32" Tc=20.0 min CN=62 Runoff=2.81 cfs 0.372 af

Subcatchment 208-I:

Runoff Area=13.450 ac Runoff Depth=2.57" Tc=10.0 min CN=98 Runoff=46.11 cfs 2.880 af

Subcatchment 208-P:

Runoff Area=13.410 ac Runoff Depth=0.35" Tc=20.0 min CN=63 Runoff=3.20 cfs 0.394 af

Subcatchment 208a-I:

Runoff Area=5.350 ac Runoff Depth=2.57" Tc=10.0 min CN=98 Runoff=18.34 cfs 1.145 af

Type II 24-hr 2-yr Rainfall=2.80"

Subcatchment 208a-P:

Page 2 8/27/2010

Runoff Area=5.340 ac Runoff Depth=0.35" Tc=20.0 min CN=63 Runoff=1.27 cfs 0.157 af

Subcatchment 209-I:

Runoff Area=20.850 ac Runoff Depth=2.57" Tc=10.0 min CN=98 Runoff=71.47 cfs 4.464 af

Subcatchment 209-P:

Runoff Area=13.550 ac Runoff Depth=0.17" Tc=20.0 min CN=56 Runoff=0.62 cfs 0.188 af

Subcatchment 209a-I:

Runoff Area=8.300 ac Runoff Depth=2.57" Tc=10.0 min CN=98 Runoff=28.45 cfs 1.777 af

Subcatchment 209a-P':

Runoff Area=5.390 ac Runoff Depth=0.17" Tc=20.0 min CN=56 Runoff=0.25 cfs 0.075 af

Subcatchment 211:

Runoff Area=11.730 ac Runoff Depth=0.14" Flow Length=1,080' Tc=36.0 min CN=55 Runoff=0.33 cfs 0.142 af

Subcatchment 214:

Runoff Area=15.910 ac Runoff Depth=0.19" Flow Length=940' Tc=29.3 min CN=57 Runoff=0.85 cfs 0.250 af

Subcatchment 215:

Runoff Area=4.580 ac Runoff Depth=0.14" Flow Length=945' Tc=32.5 min CN=55 Runoff=0.13 cfs 0.055 af

Subcatchment 216:

Runoff Area=4.490 ac Runoff Depth=0.14" Flow Length=690' Tc=41.7 min CN=55 Runoff=0.12 cfs 0.054 af

Subcatchment 217:

Runoff Area=38.170 ac Runoff Depth=0.17" Flow Length=660' Tc=22.6 min CN=56 Runoff=1.67 cfs 0.528 af

Subcatchment 218:

Runoff Area=1.260 ac Runoff Depth=0.06" Flow Length=270' Tc=13.1 min CN=50 Runoff=0.01 cfs 0.006 af

Subcatchment 219:

Runoff Area=80.650 ac Runoff Depth=0.07" Flow Length=660' Tc=30.8 min CN=51 Runoff=0.68 cfs 0.495 af

Reach 202-R1:

Inflow=4.73 cfs 0.752 af Outflow=4.73 cfs 0.752 af

Reach 204-R:

Inflow=0.33 cfs 0.142 af Outflow=0.33 cfs 0.142 af

Reach 212-R1:

Inflow=0.25 cfs 0.109 af Outflow=0.25 cfs 0.109 af

Reach Cannon-1:

Inflow=37.38 cfs 22.161 af Outflow=37.38 cfs 22.161 af

Reach Cannon-2:

Inflow=33.34 cfs 17.678 af Outflow=33.34 cfs 17.678 af

Type II 24-hr 2-yr Rainfall=2.80"

Page 3 8/27/2010

Reach Cannon-3:

Inflow=5.24 cfs 6.510 af Outflow=5.24 cfs 6.510 af

Reach Heath-1:

Inflow=4.97 cfs 4.483 af Outflow=4.97 cfs 4.483 af

Reach Heath-2:

Inflow=3.68 cfs 2.640 af Outflow=3.68 cfs 2.640 af

Reach Heath-3:

Inflow=3.24 cfs 2.112 af Outflow=3.24 cfs 2.112 af

Reach Heath-4:

Inflow=0.54 cfs 0.390 af Outflow=0.54 cfs 0.390 af

Reach Rice-0:

Inflow=28.14 cfs 11.168 af Outflow=28.14 cfs 11.168 af

Reach Rice-1:

Inflow=27.52 cfs 10.673 af Outflow=27.52 cfs 10.673 af

Reach Rice-2:

Inflow=19.31 cfs 5.929 af Outflow=19.31 cfs 5.929 af

Reach Rice-3:

Inflow=19.31 cfs 5.929 af Outflow=19.31 cfs 5.929 af

Pond I-203:

Peak Elev=958.56' Storage=2.222 af Inflow=8.01 cfs 6.059 af Discarded=1.01 cfs 4.335 af Primary=3.23 cfs 1.722 af Outflow=4.23 cfs 6.057 af

Pond I-206a:

Peak Elev=959.55' Storage=2.730 af Inflow=6.19 cfs 7.654 af Discarded=1.26 cfs 6.177 af Primary=2.45 cfs 1.472 af Outflow=3.71 cfs 7.649 af

Pond I-206b:

Peak Elev=948.68' Storage=1.505 af Inflow=26.03 cfs 8.390 af Discarded=0.55 cfs 2.466 af Primary=19.30 cfs 5.923 af Outflow=19.86 cfs 8.389 af

Pond I-207:

Peak Elev=950.85' Storage=2.708 af Inflow=29.71 cfs 8.126 af Discarded=0.81 cfs 3.381 af Primary=12.95 cfs 4.744 af Outflow=13.76 cfs 8.125 af

Pond I-208a:

Peak Elev=982.33' Storage=0.630 af Inflow=1.53 cfs 1.561 af Discarded=0.48 cfs 1.560 af Primary=0.00 cfs 0.000 af Outflow=0.48 cfs 1.560 af

Pond I-209:

Peak Elev=933.03' Storage=2.581 af Inflow=11.63 cfs 4.602 af Discarded=1.26 cfs 4.601 af Primary=0.00 cfs 0.000 af Outflow=1.26 cfs 4.601 af

Pond P-202:

Peak Elev=947.54' Storage=13.861 af Inflow=95.63 cfs 6.906 af 18.0" x 100.0' Culvert Outflow=5.24 cfs 6.510 af

Pond P-203:

Peak Elev=969.26' Storage=12.519 af Inflow=76.19 cfs 6.225 af 36.0" x 50.0' Culvert Outflow=8.01 cfs 6.059 af

Type II 24-hr 2-yr Rainfall=2.80"

Page 4 8/27/2010

Pond P-204:

Peak Elev=961.49' Storage=17.282 af Inflow=121.62 cfs 8.079 af 18.0" x 100.0' Culvert Outflow=6.19 cfs 7.654 af

Pond P-206:

Peak Elev=969.90' Storage=8.794 af Inflow=108.99 cfs 6.937 af 27.0" x 50.0' Culvert Outflow=26.03 cfs 6.917 af

Pond P-207:

Peak Elev=961.95' Storage=10.028 af Inflow=125.43 cfs 8.161 af 30.0" x 50.0' Culvert Outflow=29.71 cfs 8.126 af

Pond P-208a:

Peak Elev=986.81' Storage=4.274 af Inflow=18.75 cfs 1.608 af 12.0" x 20.0' Culvert Outflow=1.53 cfs 1.561 af

Pond P-208b:

Peak Elev=972.22' Storage=3.097 af Inflow=47.05 cfs 3.273 af 36.0" x 50.0' Culvert Outflow=0.54 cfs 0.390 af

Pond P-209:

Peak Elev=951.63' Storage=7.237 af Inflow=71.52 cfs 4.651 af 30.0" x 100.0' Culvert Outflow=11.63 cfs 4.602 af

Pond P-209a:

Peak Elev=935.60' Storage=2.844 af Inflow=28.47 cfs 1.852 af 12.0" x 50.0' Culvert Outflow=3.32 cfs 1.843 af

Total Runoff Area = 517.300 ac Runoff Volume = 48.722 af Average Runoff Depth = 1.13"

Type II 24-hr 2-yr Rainfall=2.80"

Page 5 8/27/2010

Subcatchment 201: Runoff

0.13 cfs @ 12.64 hrs, Volume=

0.055 af, Depth= 0.14"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 4.540

CN 55

Description Big Woods (HSG B)

Subcatchment 202-I: Runoff

94.82 cfs @ 12.01 hrs, Volume=

5.922 af, Depth= 2.57"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 27.660

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 202-P: Runoff

1.61 cfs @ 12.20 hrs, Volume=

0.232 af, Depth= 0.29"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 9.520

CN 61

Tc Length (min) (feet) 20.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Type II 24-hr 2-yr Rainfall=2.80"

Subcatchment 203-I: Runoff

73.05 cfs @ 12.01 hrs, Volume=

4.562 af, Depth= 2.57"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 21.310

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 203-P: Runoff

11.48 cfs @ 12.19 hrs, Volume=

1.521 af, Depth= 0.32"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 56.740

CN 62

Tc Length (min) (feet) 20.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 204-I: Runoff

120.97 cfs @ 12.01 hrs, Volume=

7.555 af, Depth= 2.57"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 35.290

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 204-P: Runoff

2.87 cfs @ 12.20 hrs, Volume=

0.415 af, Depth= 0.29"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80"

Page 6 8/27/2010

Type II 24-hr 2-yr Rainfall=2.80"

Area (ac) 17.020

CN 61

Tc Length (min) (feet) 20.0

Page 7 8/27/2010

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 205: Runoff

4.73 cfs @ 12.50 hrs, Volume=

0.752 af, Depth= 0.61"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 14.900

CN 70

Description Cropland - HSG B

Subcatchment 206-I: Runoff

108.77 cfs @ 12.01 hrs, Volume=

6.793 af, Depth= 2.57"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 31.730

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 206-P: Runoff

0.99 cfs @ 12.20 hrs, Volume=

0.144 af, Depth= 0.29"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 5.900

CN 61

Description

Type II 24-hr 2-yr Rainfall=2.80"

Tc Length (min) (feet) 20.0

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 207-I: Runoff

124.71 cfs @ 12.01 hrs, Volume=

7.789 af, Depth= 2.57"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 36.380

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 207-P: Runoff

2.81 cfs @ 12.19 hrs, Volume=

0.372 af, Depth= 0.32"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 13.880

CN 62

Tc Length (min) (feet) 20.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 208-I: Runoff

46.11 cfs @ 12.01 hrs, Volume=

2.880 af, Depth= 2.57"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 13.450

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Page 8 8/27/2010

Type II 24-hr 2-yr Rainfall=2.80"

Subcatchment 208-P: Runoff

3.20 cfs @ 12.19 hrs, Volume=

0.394 af, Depth= 0.35"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 13.410

CN 63

Tc Length (min) (feet) 20.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 208a-I: Runoff

18.34 cfs @ 12.01 hrs, Volume=

1.145 af, Depth= 2.57"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 5.350

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 208a-P: Runoff

1.27 cfs @ 12.19 hrs, Volume=

0.157 af, Depth= 0.35"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 5.340

CN 63

Tc Length (min) (feet) 20.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 209-I: Runoff

71.47 cfs @ 12.01 hrs, Volume=

4.464 af, Depth= 2.57"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80"

Page 9 8/27/2010

Type II 24-hr 2-yr Rainfall=2.80"

Area (ac) 20.850

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 209-P: Runoff

0.62 cfs @ 12.28 hrs, Volume=

0.188 af, Depth= 0.17"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 13.550

CN 56

Tc Length (min) (feet) 20.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 209a-I: Runoff

28.45 cfs @ 12.01 hrs, Volume=

1.777 af, Depth= 2.57"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 8.300

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 209a-P': Runoff

0.25 cfs @ 12.28 hrs, Volume=

0.075 af, Depth= 0.17"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 5.390

CN 56

Tc Length (min) (feet) 20.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Page 10 8/27/2010

Type II 24-hr 2-yr Rainfall=2.80"

Page 11 8/27/2010

Subcatchment 211: Runoff

0.33 cfs @ 12.69 hrs, Volume=

0.142 af, Depth= 0.14"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 11.660 0.070 11.730

CN 55 70 55

Description Big Woods (HSG B) Big Woods (HSG C) Weighted Average

Subcatchment 214: Runoff

0.85 cfs @ 12.43 hrs, Volume=

0.250 af, Depth= 0.19"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 13.310 2.600 15.910

CN 55 70 57

Description Big Woods (HSG B) Big Woods (HSG C) Weighted Average

Subcatchment 215: Runoff

0.13 cfs @ 12.64 hrs, Volume=

0.055 af, Depth= 0.14"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 4.580

CN 55

Description Big Woods (HSG B)

Type II 24-hr 2-yr Rainfall=2.80"

Page 12 8/27/2010

Subcatchment 216: Runoff

0.12 cfs @ 12.79 hrs, Volume=

0.054 af, Depth= 0.14"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 4.490

CN 55

Description Big Woods (HSG B)

Subcatchment 217: Runoff

1.67 cfs @ 12.33 hrs, Volume=

0.528 af, Depth= 0.17"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 0.920 35.180 2.070 38.170

CN 35 55 77 56

Description Big Woods (HSG A) Big Woods (HSG B) Big Woods (HSG D) Weighted Average

Type II 24-hr 2-yr Rainfall=2.80"

Page 13 8/27/2010

Subcatchment 218: Runoff

0.01 cfs @ 15.02 hrs, Volume=

0.006 af, Depth= 0.06"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 0.330 0.930 1.260

CN 35 55 50

Description Big Woods (HSG A) Big Woods (HSG B) Weighted Average

Subcatchment 219: Runoff

0.68 cfs @ 13.73 hrs, Volume=

0.495 af, Depth= 0.07"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 2-yr Rainfall=2.80" Area (ac) 15.350 65.190 0.110 80.650

CN 35 55 70 51

Description Big Woods (HSG A) Big Woods (HSG B) Big Woods (HSG C) Weighted Average

Reach 202-R1: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

14.900 ac, Inflow Depth = 0.61" for 2-yr event 4.73 cfs @ 12.50 hrs, Volume= 0.752 af 4.73 cfs @ 12.50 hrs, Volume= 0.752 af, Atten= 0%, Lag= 0.0 min

Type II 24-hr 2-yr Rainfall=2.80"

Page 14 8/27/2010

Routing by Stor-Ind+Trans method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs

Reach 204-R: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

11.730 ac, Inflow Depth = 0.14" for 2-yr event 0.33 cfs @ 12.69 hrs, Volume= 0.142 af 0.33 cfs @ 12.69 hrs, Volume= 0.142 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs

Reach 212-R1: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

9.030 ac, Inflow Depth = 0.14" for 2-yr event 0.25 cfs @ 12.73 hrs, Volume= 0.109 af 0.25 cfs @ 12.73 hrs, Volume= 0.109 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs

Reach Cannon-1: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

517.300 ac, Inflow Depth > 0.51" for 2-yr event 37.38 cfs @ 13.21 hrs, Volume= 22.161 af 37.38 cfs @ 13.21 hrs, Volume= 22.161 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs

Reach Cannon-2: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

283.220 ac, Inflow Depth > 0.75" for 2-yr event 33.34 cfs @ 13.24 hrs, Volume= 17.678 af 33.34 cfs @ 13.24 hrs, Volume= 17.678 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs

Reach Cannon-3: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

52.080 ac, Inflow Depth > 1.50" for 2-yr event 5.24 cfs @ 13.66 hrs, Volume= 6.510 af 5.24 cfs @ 13.66 hrs, Volume= 6.510 af, Atten= 0%, Lag= 0.0 min

Type II 24-hr 2-yr Rainfall=2.80"

Page 15 8/27/2010

Routing by Stor-Ind+Trans method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs

Reach Heath-1: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

234.080 ac, Inflow Depth > 0.23" for 2-yr event 4.97 cfs @ 12.34 hrs, Volume= 4.483 af 4.97 cfs @ 12.34 hrs, Volume= 4.483 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs

Reach Heath-2: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

185.990 ac, Inflow Depth > 0.17" for 2-yr event 3.68 cfs @ 17.72 hrs, Volume= 2.640 af 3.68 cfs @ 17.72 hrs, Volume= 2.640 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs

Reach Heath-3: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

147.820 ac, Inflow Depth > 0.17" for 2-yr event 3.24 cfs @ 17.76 hrs, Volume= 2.112 af 3.24 cfs @ 17.76 hrs, Volume= 2.112 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs

Reach Heath-4: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

58.040 ac, Inflow Depth > 0.08" for 2-yr event 0.54 cfs @ 24.06 hrs, Volume= 0.390 af 0.54 cfs @ 24.06 hrs, Volume= 0.390 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs

Reach Rice-0: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

231.140 ac, Inflow Depth = 0.58" for 2-yr event 28.14 cfs @ 13.23 hrs, Volume= 11.168 af 28.14 cfs @ 13.23 hrs, Volume= 11.168 af, Atten= 0%, Lag= 0.0 min

Type II 24-hr 2-yr Rainfall=2.80"

Page 16 8/27/2010

Routing by Stor-Ind+Trans method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs

Reach Rice-1: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

150.490 ac, Inflow Depth = 0.85" for 2-yr event 27.52 cfs @ 13.22 hrs, Volume= 10.673 af 27.52 cfs @ 13.22 hrs, Volume= 10.673 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs

Reach Rice-2: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

100.230 ac, Inflow Depth = 0.71" for 2-yr event 19.31 cfs @ 12.81 hrs, Volume= 5.929 af 19.31 cfs @ 12.81 hrs, Volume= 5.929 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs

Reach Rice-3: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

100.230 ac, Inflow Depth = 0.71" for 2-yr event 19.31 cfs @ 12.81 hrs, Volume= 5.929 af 19.31 cfs @ 12.81 hrs, Volume= 5.929 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs

Pond I-203: Inflow Area = Inflow = Outflow = Discarded = Primary =

89.780 ac, Inflow Depth > 0.81" for 2-yr event 8.01 cfs @ 12.89 hrs, Volume= 6.059 af 4.23 cfs @ 17.71 hrs, Volume= 6.057 af, Atten= 47%, Lag= 288.7 min 1.01 cfs @ 12.10 hrs, Volume= 4.335 af 3.23 cfs @ 17.71 hrs, Volume= 1.722 af

Routing by Stor-Ind method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Peak Elev= 958.56' @ 17.71 hrs Surf.Area= 4.000 ac Storage= 2.222 af Plug-Flow detention time= 690.7 min calculated for 6.054 af (100% of inflow) Center-of-Mass det. time= 688.8 min ( 1,961.5 - 1,272.7 ) Volume #1

Invert 958.00'

Avail.Storage 8.000 af

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Type II 24-hr 2-yr Rainfall=2.80"

Elevation (feet) 958.00 960.00 Device #1

Surf.Area (acres) 4.000 4.000

Routing Primary

Inc.Store (acre-feet) 0.000 8.000

Invert 958.50'

Discarded

0.00'

Page 17 8/27/2010

Cum.Store (acre-feet) 0.000 8.000

Outlet Devices 100.0' long x 3.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 Coef. (English) 2.44 2.58 2.68 2.67 2.65 2.64 2.64 2.68 2.68 2.72 2.81 2.92 2.97 3.07 3.32 0.250 in/hr Exfiltration-HSG B over Surface area

Discarded OutFlow Max=1.01 cfs @ 12.10 hrs HW=958.02' (Free Discharge) 2=Exfiltration-HSG B (Exfiltration Controls 1.01 cfs) Primary OutFlow Max=3.20 cfs @ 17.71 hrs HW=958.56' (Free Discharge) 1=Broad-Crested Rectangular Weir (Weir Controls 3.20 cfs @ 0.6 fps)

Pond I-206a: [79] Warning: Submerged Pond P-204 Primary device # 1 OUTLET by 0.05' Inflow Area = Inflow = Outflow = Discarded = Primary =

61.340 ac, Inflow Depth > 1.50" for 2-yr event 6.19 cfs @ 13.41 hrs, Volume= 7.654 af 3.71 cfs @ 21.27 hrs, Volume= 7.649 af, Atten= 40%, Lag= 472.1 min 1.26 cfs @ 12.15 hrs, Volume= 6.177 af 2.45 cfs @ 21.27 hrs, Volume= 1.472 af

Routing by Stor-Ind method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Peak Elev= 959.55' @ 21.27 hrs Surf.Area= 5.000 ac Storage= 2.730 af Plug-Flow detention time= 772.5 min calculated for 7.645 af (100% of inflow) Center-of-Mass det. time= 769.2 min ( 2,276.7 - 1,507.5 ) Volume #1

Invert 959.00'

Elevation (feet) 959.00 961.00 Device #1 #2

Avail.Storage 10.000 af

Surf.Area (acres) 5.000 5.000

Routing Discarded Primary

Invert 0.00' 959.50'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 10.000

Cum.Store (acre-feet) 0.000 10.000

Type II 24-hr 2-yr Rainfall=2.80"

Page 18 8/27/2010

Discarded OutFlow Max=1.26 cfs @ 12.15 hrs HW=959.02' (Free Discharge) 1=Exfiltration - HSG B (Exfiltration Controls 1.26 cfs) Primary OutFlow Max=2.41 cfs @ 21.27 hrs HW=959.55' (Free Discharge) 2=Broad-Crested Rectangular Weir (Weir Controls 2.41 cfs @ 0.5 fps)

Pond I-206b: Inflow Area = Inflow = Outflow = Discarded = Primary =

98.970 ac, Inflow Depth > 1.02" for 2-yr event 26.03 cfs @ 12.23 hrs, Volume= 8.390 af 19.86 cfs @ 12.81 hrs, Volume= 8.389 af, Atten= 24%, Lag= 34.6 min 0.55 cfs @ 8.90 hrs, Volume= 2.466 af 19.30 cfs @ 12.81 hrs, Volume= 5.923 af

Routing by Stor-Ind method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Peak Elev= 948.68' @ 12.81 hrs Surf.Area= 2.200 ac Storage= 1.505 af Plug-Flow detention time= 295.3 min calculated for 8.389 af (100% of inflow) Center-of-Mass det. time= 295.0 min ( 1,347.8 - 1,052.8 ) Volume #1

Invert 948.00'

Elevation (feet) 948.00 950.00 Device #1 #2

Avail.Storage 4.400 af

Surf.Area (acres) 2.200 2.200

Routing Discarded Primary

Invert 0.00' 948.50'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 4.400

Cum.Store (acre-feet) 0.000 4.400

Discarded OutFlow Max=0.55 cfs @ 8.90 hrs HW=948.02' (Free Discharge) 1=Exfiltration - HSG B (Exfiltration Controls 0.55 cfs) Primary OutFlow Max=19.27 cfs @ 12.81 hrs HW=948.68' (Free Discharge) 2=Broad-Crested Rectangular Weir (Weir Controls 19.27 cfs @ 1.0 fps)

Pond I-207: Inflow Area = Inflow = Outflow = Discarded = Primary =

50.260 ac, Inflow Depth > 1.94" for 2-yr event 29.71 cfs @ 12.25 hrs, Volume= 8.126 af 13.76 cfs @ 13.72 hrs, Volume= 8.125 af, Atten= 54%, Lag= 88.6 min 0.81 cfs @ 9.45 hrs, Volume= 3.381 af 12.95 cfs @ 13.72 hrs, Volume= 4.744 af

Routing by Stor-Ind method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs

Type II 24-hr 2-yr Rainfall=2.80"

Page 19 8/27/2010

Peak Elev= 950.85' @ 13.72 hrs Surf.Area= 3.200 ac Storage= 2.708 af Plug-Flow detention time= 439.9 min calculated for 8.125 af (100% of inflow) Center-of-Mass det. time= 439.4 min ( 1,410.7 - 971.4 ) Volume #1

Invert 950.00'

Elevation (feet) 950.00 952.00 Device #1

Avail.Storage 6.400 af

Surf.Area (acres) 3.200 3.200

Routing Primary

Inc.Store (acre-feet) 0.000 6.400

Invert 950.50'

Discarded

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

0.00'

Cum.Store (acre-feet) 0.000 6.400

Outlet Devices 25.0' long x 3.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 Coef. (English) 2.44 2.58 2.68 2.67 2.65 2.64 2.64 2.68 2.68 2.72 2.81 2.92 2.97 3.07 3.32 0.250 in/hr Exfiltration - HSG B over Surface area

Discarded OutFlow Max=0.81 cfs @ 9.45 hrs HW=950.02' (Free Discharge) 2=Exfiltration - HSG B (Exfiltration Controls 0.81 cfs) Primary OutFlow Max=12.95 cfs @ 13.72 hrs HW=950.85' (Free Discharge) 1=Broad-Crested Rectangular Weir (Weir Controls 12.95 cfs @ 1.5 fps)

Pond I-208a: Inflow Area = Inflow = Outflow = Discarded = Primary =

31.180 ac, Inflow Depth > 0.60" for 2-yr event 1.53 cfs @ 13.48 hrs, Volume= 1.561 af 0.48 cfs @ 12.40 hrs, Volume= 1.560 af, Atten= 69%, Lag= 0.0 min 0.48 cfs @ 12.40 hrs, Volume= 1.560 af 0.00 cfs @ 0.00 hrs, Volume= 0.000 af

Routing by Stor-Ind method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Peak Elev= 982.33' @ 25.76 hrs Surf.Area= 1.900 ac Storage= 0.630 af Plug-Flow detention time= 563.6 min calculated for 1.559 af (100% of inflow) Center-of-Mass det. time= 561.0 min ( 1,935.3 - 1,374.3 ) Volume #1

Invert 982.00'

Elevation (feet) 982.00 984.00 Device #1

Avail.Storage 3.800 af

Surf.Area (acres) 1.900 1.900

Routing Primary

Invert 982.50'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 3.800

Cum.Store (acre-feet) 0.000 3.800

Outlet Devices 100.0' long x 3.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50

Type II 24-hr 2-yr Rainfall=2.80"

Discarded

0.00'

Page 20 8/27/2010

Coef. (English) 2.44 2.58 2.68 2.67 2.65 2.64 2.64 2.68 2.68 2.72 2.81 2.92 2.97 3.07 3.32 0.250 in/hr Exfiltration- HSG B over Surface area

Discarded OutFlow Max=0.48 cfs @ 12.40 hrs HW=982.02' (Free Discharge) 2=Exfiltration- HSG B (Exfiltration Controls 0.48 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=982.00' (Free Discharge) 1=Broad-Crested Rectangular Weir ( Controls 0.00 cfs)

Pond I-209: Inflow Area = Inflow = Outflow = Discarded = Primary =

34.400 ac, Inflow Depth > 1.61" for 2-yr event 11.63 cfs @ 12.32 hrs, Volume= 4.602 af 1.26 cfs @ 11.80 hrs, Volume= 4.601 af, Atten= 89%, Lag= 0.0 min 1.26 cfs @ 11.80 hrs, Volume= 4.601 af 0.00 cfs @ 0.00 hrs, Volume= 0.000 af

Routing by Stor-Ind method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Peak Elev= 933.03' @ 22.36 hrs Surf.Area= 2.500 ac Storage= 2.581 af Plug-Flow detention time= 882.0 min calculated for 4.599 af (100% of inflow) Center-of-Mass det. time= 880.8 min ( 1,955.7 - 1,074.9 ) Volume #1

Invert 932.00'

Elevation (feet) 932.00 935.00 Device #1 #2

Avail.Storage 7.500 af

Surf.Area (acres) 2.500 2.500

Routing Discarded Primary

Invert 0.00' 934.00'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 7.500

Cum.Store (acre-feet) 0.000 7.500

Outlet Devices 0.500 in/hr Exfiltration - HSG A over Surface area 100.0' long x 3.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 Coef. (English) 2.44 2.58 2.68 2.67 2.65 2.64 2.64 2.68 2.68 2.72 2.81 2.92 2.97 3.07 3.32

Discarded OutFlow Max=1.26 cfs @ 11.80 hrs HW=932.03' (Free Discharge) 1=Exfiltration - HSG A (Exfiltration Controls 1.26 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=932.00' (Free Discharge) 2=Broad-Crested Rectangular Weir ( Controls 0.00 cfs)

Type II 24-hr 2-yr Rainfall=2.80"

Page 21 8/27/2010

Pond P-202: Inflow Area = Inflow = Outflow = Primary =

52.080 ac, Inflow Depth = 1.59" for 2-yr event 95.63 cfs @ 12.01 hrs, Volume= 6.906 af 5.24 cfs @ 13.66 hrs, Volume= 6.510 af, Atten= 95%, Lag= 98.8 min 5.24 cfs @ 13.66 hrs, Volume= 6.510 af

Routing by Stor-Ind method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Starting Elev= 946.00' Surf.Area= 2.686 ac Storage= 9.520 af Peak Elev= 947.54' @ 13.66 hrs Surf.Area= 2.960 ac Storage= 13.861 af (4.341 af above start) Plug-Flow detention time= (not calculated: initial storage excedes outflow) Center-of-Mass det. time= 733.6 min ( 1,516.6 - 783.0 ) Volume #1

Invert 942.00'

Elevation (feet) 942.00 946.00 950.00 Device #1

Avail.Storage 21.692 af

Surf.Area (acres) 1.220 1.580 2.000

Routing Primary

Invert 946.00'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc) x 1.7

Inc.Store (acre-feet) 0.000 5.600 7.160

Cum.Store (acre-feet) 0.000 5.600 12.760

Outlet Devices 18.0" x 100.0' long Culvert RCP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 945.80' S= 0.0020 '/' Cc= 0.900 n= 0.013

Primary OutFlow Max=5.24 cfs @ 13.66 hrs HW=947.54' (Free Discharge) 1=Culvert (Barrel Controls 5.24 cfs @ 3.6 fps)

Pond P-203: Inflow Area = Inflow = Outflow = Primary =

89.780 ac, Inflow Depth = 0.83" for 2-yr event 76.19 cfs @ 12.02 hrs, Volume= 6.225 af 8.01 cfs @ 12.89 hrs, Volume= 6.059 af, Atten= 89%, Lag= 52.7 min 8.01 cfs @ 12.89 hrs, Volume= 6.059 af

Routing by Stor-Ind method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Starting Elev= 968.00' Surf.Area= 2.480 ac Storage= 9.328 af Peak Elev= 969.26' @ 12.89 hrs Surf.Area= 2.581 ac Storage= 12.519 af (3.191 af above start) Plug-Flow detention time= (not calculated: initial storage excedes outflow) Center-of-Mass det. time= 463.5 min ( 1,272.7 - 809.3 ) Volume #1 Elevation (feet) 964.00 968.00 972.00

Invert 964.00'

Avail.Storage 19.888 af

Surf.Area (acres) 5.460 6.200 7.000

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc) x 0.4

Inc.Store (acre-feet) 0.000 23.320 26.400

Cum.Store (acre-feet) 0.000 23.320 49.720

Type II 24-hr 2-yr Rainfall=2.80"

Device #1

Routing Primary

Invert 968.00'

Page 22 8/27/2010

Outlet Devices 36.0" x 50.0' long Culvert RCP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 967.75' S= 0.0050 '/' Cc= 0.900 n= 0.013

Primary OutFlow Max=8.01 cfs @ 12.89 hrs HW=969.26' (Free Discharge) 1=Culvert (Barrel Controls 8.01 cfs @ 4.2 fps)

Pond P-204: Inflow Area = Inflow = Outflow = Primary =

61.340 ac, Inflow Depth = 1.58" for 2-yr event 121.62 cfs @ 12.01 hrs, Volume= 8.079 af 6.19 cfs @ 13.41 hrs, Volume= 7.654 af, Atten= 95%, Lag= 83.9 min 6.19 cfs @ 13.41 hrs, Volume= 7.654 af

Routing by Stor-Ind method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Starting Elev= 960.00' Surf.Area= 3.340 ac Storage= 12.120 af Peak Elev= 961.49' @ 13.41 hrs Surf.Area= 3.586 ac Storage= 17.282 af (5.162 af above start) Plug-Flow detention time= (not calculated: initial storage excedes outflow) Center-of-Mass det. time= 735.2 min ( 1,507.5 - 772.3 ) Volume #1

Invert 956.00'

Elevation (feet) 956.00 960.00 964.00 Device #1

Avail.Storage 26.800 af

Surf.Area (acres) 2.720 3.340 4.000

Routing Primary

Invert 960.00'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 12.120 14.680

Cum.Store (acre-feet) 0.000 12.120 26.800

Outlet Devices 18.0" x 100.0' long Culvert RCP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 959.50' S= 0.0050 '/' Cc= 0.900 n= 0.013

Primary OutFlow Max=6.19 cfs @ 13.41 hrs HW=961.49' (Free Discharge) 1=Culvert (Barrel Controls 6.19 cfs @ 4.4 fps)

Pond P-206: Inflow Area = Inflow = Outflow = Primary =

37.630 ac, Inflow Depth = 2.21" for 2-yr event 108.99 cfs @ 12.01 hrs, Volume= 6.937 af 26.03 cfs @ 12.23 hrs, Volume= 6.917 af, Atten= 76%, Lag= 13.6 min 26.03 cfs @ 12.23 hrs, Volume= 6.917 af

Routing by Stor-Ind method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Starting Elev= 968.00' Surf.Area= 1.580 ac Storage= 5.600 af Peak Elev= 969.90' @ 12.23 hrs Surf.Area= 1.780 ac Storage= 8.794 af (3.194 af above start) Plug-Flow detention time= 1,122.4 min calculated for 1.317 af (19% of inflow) Center-of-Mass det. time= 207.5 min ( 970.6 - 763.1 )

Type II 24-hr 2-yr Rainfall=2.80"

Volume #1

Invert 964.00'

Elevation (feet) 964.00 968.00 972.00 Device #1

Avail.Storage 12.760 af

Surf.Area (acres) 1.220 1.580 2.000

Routing Primary

Invert 968.00'

Page 23 8/27/2010

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 5.600 7.160

Cum.Store (acre-feet) 0.000 5.600 12.760

Outlet Devices 27.0" x 50.0' long Culvert X 2.00 RCP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 967.75' S= 0.0050 '/' Cc= 0.900 n= 0.013

Primary OutFlow Max=26.00 cfs @ 12.23 hrs HW=969.90' (Free Discharge) 1=Culvert (Barrel Controls 26.00 cfs @ 4.9 fps)

Pond P-207: Inflow Area = Inflow = Outflow = Primary =

50.260 ac, Inflow Depth = 1.95" for 2-yr event 125.43 cfs @ 12.01 hrs, Volume= 8.161 af 29.71 cfs @ 12.25 hrs, Volume= 8.126 af, Atten= 76%, Lag= 14.3 min 29.71 cfs @ 12.25 hrs, Volume= 8.126 af

Routing by Stor-Ind method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Starting Elev= 960.00' Surf.Area= 1.788 ac Storage= 6.312 af Peak Elev= 961.95' @ 12.25 hrs Surf.Area= 2.028 ac Storage= 10.028 af (3.716 af above start) Plug-Flow detention time= 1,002.2 min calculated for 1.814 af (22% of inflow) Center-of-Mass det. time= 203.9 min ( 971.4 - 767.4 ) Volume #1

Invert 956.00'

Elevation (feet) 956.00 960.00 964.00 970.01 Device #1

Avail.Storage 28.151 af

Surf.Area (acres) 1.140 1.490 1.900 1.900

Routing Primary

Invert 960.00'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc) x 1.2

Inc.Store (acre-feet) 0.000 5.260 6.780 11.419

Cum.Store (acre-feet) 0.000 5.260 12.040 23.459

Outlet Devices 30.0" x 50.0' long Culvert X 2.00 RCP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 959.75' S= 0.0050 '/' Cc= 0.900 n= 0.013

Primary OutFlow Max=29.68 cfs @ 12.25 hrs HW=961.95' (Free Discharge) 1=Culvert (Barrel Controls 29.68 cfs @ 5.0 fps)

Type II 24-hr 2-yr Rainfall=2.80"

Page 24 8/27/2010

Pond P-208a: Inflow Area = Inflow = Outflow = Primary =

31.180 ac, Inflow Depth = 0.62" for 2-yr event 18.75 cfs @ 12.01 hrs, Volume= 1.608 af 1.53 cfs @ 13.48 hrs, Volume= 1.561 af, Atten= 92%, Lag= 88.0 min 1.53 cfs @ 13.48 hrs, Volume= 1.561 af

Routing by Stor-Ind method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Starting Elev= 986.00' Surf.Area= 1.000 ac Storage= 3.440 af Peak Elev= 986.81' @ 13.48 hrs Surf.Area= 1.067 ac Storage= 4.274 af (0.834 af above start) Plug-Flow detention time= (not calculated: initial storage excedes outflow) Center-of-Mass det. time= 553.2 min ( 1,374.3 - 821.0 ) Volume #1

Invert 982.00'

Elevation (feet) 982.00 986.00 990.00 Device #1

Avail.Storage 8.100 af

Surf.Area (acres) 0.720 1.000 1.330

Routing Primary

Invert 986.00'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 3.440 4.660

Cum.Store (acre-feet) 0.000 3.440 8.100

Outlet Devices 12.0" x 20.0' long Culvert RCP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 985.90' S= 0.0050 '/' Cc= 0.900 n= 0.013

Primary OutFlow Max=1.53 cfs @ 13.48 hrs HW=986.81' (Free Discharge) 1=Culvert (Barrel Controls 1.53 cfs @ 3.1 fps)

Pond P-208b: Inflow Area = Inflow = Outflow = Primary =

58.040 ac, Inflow Depth = 0.68" for 2-yr event 47.05 cfs @ 12.01 hrs, Volume= 3.273 af 0.54 cfs @ 24.06 hrs, Volume= 0.390 af, Atten= 99%, Lag= 723.0 min 0.54 cfs @ 24.06 hrs, Volume= 0.390 af

Routing by Stor-Ind method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Peak Elev= 972.22' @ 24.06 hrs Surf.Area= 1.025 ac Storage= 3.097 af Plug-Flow detention time= 1,278.9 min calculated for 0.390 af (12% of inflow) Center-of-Mass det. time= 957.3 min ( 1,737.4 - 780.1 ) Volume #1 Elevation (feet) 968.00 972.00 974.00

Invert 968.00'

Avail.Storage 5.400 af

Surf.Area (acres) 0.160 0.320 0.520

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc) x 3

Inc.Store (acre-feet) 0.000 0.960 0.840

Cum.Store (acre-feet) 0.000 0.960 1.800

Type II 24-hr 2-yr Rainfall=2.80"

Device #1

Routing Primary

Invert 972.00'

Page 25 8/27/2010

Outlet Devices 36.0" x 50.0' long Culvert X 2.00 RCP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 971.75' S= 0.0050 '/' Cc= 0.900 n= 0.013

Primary OutFlow Max=0.53 cfs @ 24.06 hrs HW=972.22' (Free Discharge) 1=Culvert (Barrel Controls 0.53 cfs @ 1.7 fps)

Pond P-209: Inflow Area = Inflow = Outflow = Primary =

34.400 ac, Inflow Depth = 1.62" for 2-yr event 71.52 cfs @ 12.01 hrs, Volume= 4.651 af 11.63 cfs @ 12.32 hrs, Volume= 4.602 af, Atten= 84%, Lag= 18.9 min 11.63 cfs @ 12.32 hrs, Volume= 4.602 af

Routing by Stor-Ind method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Starting Elev= 950.00' Surf.Area= 1.390 ac Storage= 4.840 af Peak Elev= 951.63' @ 12.32 hrs Surf.Area= 1.557 ac Storage= 7.237 af (2.397 af above start) Plug-Flow detention time= (not calculated: initial storage excedes outflow) Center-of-Mass det. time= 306.3 min ( 1,074.9 - 768.6 ) Volume #1

Invert 946.00'

Elevation (feet) 946.00 950.00 954.00 Device #1

Avail.Storage 11.220 af

Surf.Area (acres) 1.030 1.390 1.800

Routing Primary

Invert 950.00'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 4.840 6.380

Cum.Store (acre-feet) 0.000 4.840 11.220

Outlet Devices 30.0" x 100.0' long Culvert RCP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 949.50' S= 0.0050 '/' Cc= 0.900 n= 0.013

Primary OutFlow Max=11.62 cfs @ 12.32 hrs HW=951.63' (Free Discharge) 1=Culvert (Barrel Controls 11.62 cfs @ 4.9 fps)

Pond P-209a: Inflow Area = Inflow = Outflow = Primary =

13.690 ac, Inflow Depth = 1.62" for 2-yr event 28.47 cfs @ 12.01 hrs, Volume= 1.852 af 3.32 cfs @ 12.46 hrs, Volume= 1.843 af, Atten= 88%, Lag= 27.3 min 3.32 cfs @ 12.46 hrs, Volume= 1.843 af

Routing by Stor-Ind method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Starting Elev= 934.00' Surf.Area= 0.560 ac Storage= 1.876 af Peak Elev= 935.60' @ 12.46 hrs Surf.Area= 0.650 ac Storage= 2.844 af (0.968 af above start) Plug-Flow detention time= (not calculated: initial storage excedes outflow) Center-of-Mass det. time= 295.5 min ( 1,064.1 - 768.6 )

Type II 24-hr 2-yr Rainfall=2.80"

Volume #1

Invert 930.00'

Elevation (feet) 930.00 934.00 938.00 Device #1

Avail.Storage 4.564 af

Surf.Area (acres) 0.270 0.400 0.560

Routing Primary

Invert 934.00'

Page 26 8/27/2010

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc) x 1.4

Inc.Store (acre-feet) 0.000 1.340 1.920

Cum.Store (acre-feet) 0.000 1.340 3.260

Outlet Devices 12.0" x 50.0' long Culvert RCP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 933.75' S= 0.0050 '/' Cc= 0.900 n= 0.013

Primary OutFlow Max=3.32 cfs @ 12.46 hrs HW=935.60' (Free Discharge) 1=Culvert (Barrel Controls 3.32 cfs @ 4.2 fps)

Type II 24-hr 100-yr Rainfall=6.10"

Page 27 8/27/2010

Time span=0.00-96.00 hrs, dt=0.05 hrs, 1921 points Runoff by SCS TR-20 method, UH=SCS Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment 201:

Subcatchment 202-I:

Subcatchment 202-P:

Runoff Area=4.540 ac Runoff Depth=1.58" Flow Length=300' Tc=32.3 min CN=55 Runoff=5.13 cfs 0.596 af Runoff Area=27.660 ac Runoff Depth=5.86" Tc=10.0 min CN=98 Runoff=209.25 cfs 13.511 af Runoff Area=9.520 ac Runoff Depth=2.07" Tc=20.0 min CN=61 Runoff=20.87 cfs 1.644 af

Subcatchment 203-I:

Runoff Area=21.310 ac Runoff Depth=5.86" Tc=10.0 min CN=98 Runoff=161.21 cfs 10.409 af

Subcatchment 203-P:

Runoff Area=56.740 ac Runoff Depth=2.16" Tc=20.0 min CN=62 Runoff=130.49 cfs 10.209 af

Subcatchment 204-I:

Runoff Area=35.290 ac Runoff Depth=5.86" Tc=10.0 min CN=98 Runoff=266.97 cfs 17.238 af

Subcatchment 204-P:

Subcatchment 205:

Subcatchment 206-I:

Subcatchment 206-P:

Subcatchment 207-I:

Runoff Area=17.020 ac Runoff Depth=2.07" Tc=20.0 min CN=61 Runoff=37.32 cfs 2.940 af Runoff Area=14.900 ac Runoff Depth=2.88" Flow Length=730' Tc=45.1 min CN=70 Runoff=27.74 cfs 3.582 af Runoff Area=31.730 ac Runoff Depth=5.86" Tc=10.0 min CN=98 Runoff=240.04 cfs 15.499 af Runoff Area=5.900 ac Runoff Depth=2.07" Tc=20.0 min CN=61 Runoff=12.94 cfs 1.019 af Runoff Area=36.380 ac Runoff Depth=5.86" Tc=10.0 min CN=98 Runoff=275.21 cfs 17.771 af

Subcatchment 207-P:

Runoff Area=13.880 ac Runoff Depth=2.16" Tc=20.0 min CN=62 Runoff=31.92 cfs 2.497 af

Subcatchment 208-I:

Runoff Area=13.450 ac Runoff Depth=5.86" Tc=10.0 min CN=98 Runoff=101.75 cfs 6.570 af

Subcatchment 208-P:

Runoff Area=13.410 ac Runoff Depth=2.25" Tc=20.0 min CN=63 Runoff=32.28 cfs 2.511 af

Subcatchment 208a-I:

Runoff Area=5.350 ac Runoff Depth=5.86" Tc=10.0 min CN=98 Runoff=40.47 cfs 2.613 af

Type II 24-hr 100-yr Rainfall=6.10"

Subcatchment 208a-P:

Subcatchment 209-I:

Page 28 8/27/2010

Runoff Area=5.340 ac Runoff Depth=2.25" Tc=20.0 min CN=63 Runoff=12.86 cfs 1.000 af Runoff Area=20.850 ac Runoff Depth=5.86" Tc=10.0 min CN=98 Runoff=157.73 cfs 10.185 af

Subcatchment 209-P:

Runoff Area=13.550 ac Runoff Depth=1.66" Tc=20.0 min CN=56 Runoff=22.58 cfs 1.870 af

Subcatchment 209a-I:

Runoff Area=8.300 ac Runoff Depth=5.86" Tc=10.0 min CN=98 Runoff=62.79 cfs 4.054 af

Subcatchment 209a-P':

Runoff Area=5.390 ac Runoff Depth=1.66" Tc=20.0 min CN=56 Runoff=8.98 cfs 0.744 af

Subcatchment 211:

Runoff Area=11.730 ac Runoff Depth=1.58" Flow Length=1,080' Tc=36.0 min CN=55 Runoff=12.26 cfs 1.540 af

Subcatchment 214:

Runoff Area=15.910 ac Runoff Depth=1.74" Flow Length=940' Tc=29.3 min CN=57 Runoff=21.89 cfs 2.303 af

Subcatchment 215:

Runoff Area=4.580 ac Runoff Depth=1.58" Flow Length=945' Tc=32.5 min CN=55 Runoff=5.15 cfs 0.601 af

Subcatchment 216:

Runoff Area=4.490 ac Runoff Depth=1.58" Flow Length=690' Tc=41.7 min CN=55 Runoff=4.22 cfs 0.590 af

Subcatchment 217:

Runoff Area=38.170 ac Runoff Depth=1.66" Flow Length=660' Tc=22.6 min CN=56 Runoff=58.67 cfs 5.267 af

Subcatchment 218:

Runoff Area=1.260 ac Runoff Depth=1.19" Flow Length=270' Tc=13.1 min CN=50 Runoff=1.74 cfs 0.125 af

Subcatchment 219:

Runoff Area=80.650 ac Runoff Depth=1.27" Flow Length=660' Tc=30.8 min CN=51 Runoff=69.34 cfs 8.511 af

Reach 202-R1:

Inflow=27.74 cfs 3.582 af Outflow=27.74 cfs 3.582 af

Reach 204-R:

Inflow=12.26 cfs 1.540 af Outflow=12.26 cfs 1.540 af

Reach 212-R1:

Inflow=9.05 cfs 1.186 af Outflow=9.05 cfs 1.186 af

Reach Cannon-1:

Inflow=248.53 cfs 112.058 af Outflow=248.53 cfs 112.058 af

Reach Cannon-2:

Inflow=173.60 cfs 70.204 af Outflow=173.60 cfs 70.204 af

Type II 24-hr 100-yr Rainfall=6.10"

Page 29 8/27/2010

Reach Cannon-3:

Inflow=12.49 cfs 18.289 af Outflow=12.49 cfs 18.289 af

Reach Heath-1:

Inflow=87.20 cfs 41.854 af Outflow=87.20 cfs 41.854 af

Reach Heath-2:

Inflow=81.40 cfs 32.741 af Outflow=81.40 cfs 32.741 af

Reach Heath-3:

Inflow=56.15 cfs 27.474 af Outflow=56.15 cfs 27.474 af

Reach Heath-4:

Inflow=27.08 cfs 10.406 af Outflow=27.08 cfs 10.406 af

Reach Rice-0:

Inflow=162.81 cfs 51.915 af Outflow=162.81 cfs 51.915 af

Reach Rice-1:

Inflow=107.85 cfs 43.404 af Outflow=107.85 cfs 43.404 af

Reach Rice-2:

Inflow=57.63 cfs 26.901 af Outflow=57.63 cfs 26.901 af

Reach Rice-3:

Inflow=57.63 cfs 26.901 af Outflow=57.63 cfs 26.901 af

Pond I-203:

Peak Elev=958.80' Storage=3.195 af Inflow=45.84 cfs 21.984 af Discarded=1.01 cfs 4.913 af Primary=40.98 cfs 17.068 af Outflow=41.99 cfs 21.982 af

Pond I-206a:

Peak Elev=959.63' Storage=3.137 af Inflow=12.86 cfs 20.870 af Discarded=1.26 cfs 7.584 af Primary=11.12 cfs 13.279 af Outflow=12.38 cfs 20.863 af

Pond I-206b:

Peak Elev=948.87' Storage=1.910 af Inflow=59.83 cfs 29.777 af Discarded=0.55 cfs 3.000 af Primary=57.20 cfs 26.776 af Outflow=57.76 cfs 29.776 af

Pond I-207:

Peak Elev=951.40' Storage=4.466 af Inflow=74.11 cfs 20.232 af Discarded=0.81 cfs 3.729 af Primary=56.38 cfs 16.502 af Outflow=57.19 cfs 20.231 af

Pond I-208a:

Pond I-209:

Peak Elev=982.58' Storage=1.099 af Inflow=6.03 cfs 6.464 af Discarded=0.48 cfs 2.253 af Primary=5.35 cfs 4.210 af Outflow=5.83 cfs 6.463 af Peak Elev=934.15' Storage=5.381 af Inflow=30.69 cfs 12.002 af Discarded=1.26 cfs 7.676 af Primary=14.57 cfs 4.325 af Outflow=15.83 cfs 12.001 af

Pond P-202:

Peak Elev=949.88' Storage=21.292 af Inflow=229.68 cfs 18.738 af 18.0" x 100.0' Culvert Outflow=12.49 cfs 18.289 af

Pond P-203:

Peak Elev=971.85' Storage=19.462 af Inflow=257.70 cfs 22.159 af 36.0" x 50.0' Culvert Outflow=45.84 cfs 21.984 af

Type II 24-hr 100-yr Rainfall=6.10"

Page 30 8/27/2010

Pond P-204:

Peak Elev=963.74' Storage=25.757 af Inflow=292.72 cfs 21.364 af 18.0" x 100.0' Culvert Outflow=12.86 cfs 20.870 af

Pond P-206:

Peak Elev=971.79' Storage=12.337 af Inflow=248.13 cfs 16.519 af 27.0" x 50.0' Culvert Outflow=59.83 cfs 16.498 af

Pond P-207:

Peak Elev=963.99' Storage=14.418 af Inflow=295.64 cfs 20.268 af 30.0" x 50.0' Culvert Outflow=74.11 cfs 20.232 af

Pond P-208a:

Peak Elev=989.04' Storage=6.860 af Inflow=60.06 cfs 6.517 af 12.0" x 20.0' Culvert Outflow=6.03 cfs 6.464 af

Pond P-208b:

Peak Elev=973.69' Storage=4.937 af Inflow=123.27 cfs 13.291 af 36.0" x 50.0' Culvert Outflow=27.08 cfs 10.406 af

Pond P-209:

Pond P-209a:

Peak Elev=953.47' Storage=10.285 af Inflow=170.88 cfs 12.054 af 30.0" x 100.0' Culvert Outflow=30.69 cfs 12.002 af Peak Elev=937.66' Storage=4.302 af Inflow=68.02 cfs 4.798 af 12.0" x 50.0' Culvert Outflow=6.14 cfs 4.788 af

Total Runoff Area = 517.300 ac Runoff Volume = 145.401 af Average Runoff Depth = 3.37"

Type II 24-hr 100-yr Rainfall=6.10"

Page 31 8/27/2010

Subcatchment 201: Runoff

5.13 cfs @ 12.31 hrs, Volume=

0.596 af, Depth= 1.58"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 4.540

CN 55

Description Big Woods (HSG B)

Subcatchment 202-I: Runoff

209.25 cfs @ 12.01 hrs, Volume=

13.511 af, Depth= 5.86"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 27.660

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 202-P: Runoff

20.87 cfs @ 12.14 hrs, Volume=

1.644 af, Depth= 2.07"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 9.520

CN 61

Tc Length (min) (feet) 20.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Type II 24-hr 100-yr Rainfall=6.10"

Subcatchment 203-I: Runoff

161.21 cfs @ 12.01 hrs, Volume=

10.409 af, Depth= 5.86"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 21.310

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 203-P: Runoff

130.49 cfs @ 12.14 hrs, Volume=

10.209 af, Depth= 2.16"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 56.740

CN 62

Tc Length (min) (feet) 20.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 204-I: Runoff

266.97 cfs @ 12.01 hrs, Volume=

17.238 af, Depth= 5.86"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 35.290

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 204-P: Runoff

37.32 cfs @ 12.14 hrs, Volume=

2.940 af, Depth= 2.07"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10"

Page 32 8/27/2010

Type II 24-hr 100-yr Rainfall=6.10"

Area (ac) 17.020

CN 61

Tc Length (min) (feet) 20.0

Page 33 8/27/2010

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 205: Runoff

27.74 cfs @ 12.44 hrs, Volume=

3.582 af, Depth= 2.88"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 14.900

CN 70

Description Cropland - HSG B

Subcatchment 206-I: Runoff

240.04 cfs @ 12.01 hrs, Volume=

15.499 af, Depth= 5.86"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 31.730

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 206-P: Runoff

12.94 cfs @ 12.14 hrs, Volume=

1.019 af, Depth= 2.07"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 5.900

CN 61

Description

Type II 24-hr 100-yr Rainfall=6.10"

Tc Length (min) (feet) 20.0

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 207-I: Runoff

275.21 cfs @ 12.01 hrs, Volume=

17.771 af, Depth= 5.86"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 36.380

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 207-P: Runoff

31.92 cfs @ 12.14 hrs, Volume=

2.497 af, Depth= 2.16"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 13.880

CN 62

Tc Length (min) (feet) 20.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 208-I: Runoff

101.75 cfs @ 12.01 hrs, Volume=

6.570 af, Depth= 5.86"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 13.450

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Page 34 8/27/2010

Type II 24-hr 100-yr Rainfall=6.10"

Subcatchment 208-P: Runoff

32.28 cfs @ 12.14 hrs, Volume=

2.511 af, Depth= 2.25"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 13.410

CN 63

Tc Length (min) (feet) 20.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 208a-I: Runoff

40.47 cfs @ 12.01 hrs, Volume=

2.613 af, Depth= 5.86"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 5.350

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 208a-P: Runoff

12.86 cfs @ 12.14 hrs, Volume=

1.000 af, Depth= 2.25"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 5.340

CN 63

Tc Length (min) (feet) 20.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 209-I: Runoff

157.73 cfs @ 12.01 hrs, Volume=

10.185 af, Depth= 5.86"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10"

Page 35 8/27/2010

Type II 24-hr 100-yr Rainfall=6.10"

Area (ac) 20.850

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 209-P: Runoff

22.58 cfs @ 12.15 hrs, Volume=

1.870 af, Depth= 1.66"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 13.550

CN 56

Tc Length (min) (feet) 20.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 209a-I: Runoff

62.79 cfs @ 12.01 hrs, Volume=

4.054 af, Depth= 5.86"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 8.300

CN 98

Tc Length (min) (feet) 10.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Subcatchment 209a-P': Runoff

8.98 cfs @ 12.15 hrs, Volume=

0.744 af, Depth= 1.66"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 5.390

CN 56

Tc Length (min) (feet) 20.0

Description

Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry,

Page 36 8/27/2010

Type II 24-hr 100-yr Rainfall=6.10"

Page 37 8/27/2010

Subcatchment 211: Runoff

12.26 cfs @ 12.36 hrs, Volume=

1.540 af, Depth= 1.58"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 11.660 0.070 11.730

CN 55 70 55

Description Big Woods (HSG B) Big Woods (HSG C) Weighted Average

Subcatchment 214: Runoff

21.89 cfs @ 12.26 hrs, Volume=

2.303 af, Depth= 1.74"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 13.310 2.600 15.910

CN 55 70 57

Description Big Woods (HSG B) Big Woods (HSG C) Weighted Average

Subcatchment 215: Runoff

5.15 cfs @ 12.31 hrs, Volume=

0.601 af, Depth= 1.58"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 4.580

CN 55

Description Big Woods (HSG B)

Type II 24-hr 100-yr Rainfall=6.10"

Page 38 8/27/2010

Subcatchment 216: Runoff

4.22 cfs @ 12.44 hrs, Volume=

0.590 af, Depth= 1.58"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 4.490

CN 55

Description Big Woods (HSG B)

Subcatchment 217: Runoff

58.67 cfs @ 12.18 hrs, Volume=

5.267 af, Depth= 1.66"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 0.920 35.180 2.070 38.170

CN 35 55 77 56

Description Big Woods (HSG A) Big Woods (HSG B) Big Woods (HSG D) Weighted Average

Type II 24-hr 100-yr Rainfall=6.10"

Page 39 8/27/2010

Subcatchment 218: Runoff

1.74 cfs @ 12.07 hrs, Volume=

0.125 af, Depth= 1.19"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 0.330 0.930 1.260

CN 35 55 50

Description Big Woods (HSG A) Big Woods (HSG B) Weighted Average

Subcatchment 219: Runoff

69.34 cfs @ 12.30 hrs, Volume=

8.511 af, Depth= 1.27"

Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Type II 24-hr 100-yr Rainfall=6.10" Area (ac) 15.350 65.190 0.110 80.650

CN 35 55 70 51

Description Big Woods (HSG A) Big Woods (HSG B) Big Woods (HSG C) Weighted Average

Reach 202-R1: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

14.900 ac, Inflow Depth = 2.88" for 100-yr event 27.74 cfs @ 12.44 hrs, Volume= 3.582 af 27.74 cfs @ 12.44 hrs, Volume= 3.582 af, Atten= 0%, Lag= 0.0 min

Type II 24-hr 100-yr Rainfall=6.10"

Page 40 8/27/2010

Routing by Stor-Ind+Trans method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs

Reach 204-R: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

11.730 ac, Inflow Depth = 1.58" for 100-yr event 12.26 cfs @ 12.36 hrs, Volume= 1.540 af 12.26 cfs @ 12.36 hrs, Volume= 1.540 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs

Reach 212-R1: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

9.030 ac, Inflow Depth = 1.58" for 100-yr event 9.05 cfs @ 12.36 hrs, Volume= 1.186 af 9.05 cfs @ 12.36 hrs, Volume= 1.186 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs

Reach Cannon-1: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

517.300 ac, Inflow Depth > 2.60" for 100-yr event 248.53 cfs @ 12.30 hrs, Volume= 112.058 af 248.53 cfs @ 12.30 hrs, Volume= 112.058 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs

Reach Cannon-2: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

283.220 ac, Inflow Depth > 2.97" for 100-yr event 173.60 cfs @ 12.38 hrs, Volume= 70.204 af 173.60 cfs @ 12.38 hrs, Volume= 70.204 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs

Reach Cannon-3: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

52.080 ac, Inflow Depth > 4.21" for 100-yr event 12.49 cfs @ 13.95 hrs, Volume= 18.289 af 12.49 cfs @ 13.95 hrs, Volume= 18.289 af, Atten= 0%, Lag= 0.0 min

Type II 24-hr 100-yr Rainfall=6.10"

Page 41 8/27/2010

Routing by Stor-Ind+Trans method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs

Reach Heath-1: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

234.080 ac, Inflow Depth = 2.15" for 100-yr event 87.20 cfs @ 12.21 hrs, Volume= 41.854 af 87.20 cfs @ 12.21 hrs, Volume= 41.854 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs

Reach Heath-2: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

185.990 ac, Inflow Depth = 2.11" for 100-yr event 81.40 cfs @ 12.21 hrs, Volume= 32.741 af 81.40 cfs @ 12.21 hrs, Volume= 32.741 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs

Reach Heath-3: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

147.820 ac, Inflow Depth = 2.23" for 100-yr event 56.15 cfs @ 13.23 hrs, Volume= 27.474 af 56.15 cfs @ 13.23 hrs, Volume= 27.474 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs

Reach Heath-4: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

58.040 ac, Inflow Depth > 2.15" for 100-yr event 27.08 cfs @ 12.39 hrs, Volume= 10.406 af 27.08 cfs @ 12.39 hrs, Volume= 10.406 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs

Reach Rice-0: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

231.140 ac, Inflow Depth = 2.70" for 100-yr event 162.81 cfs @ 12.37 hrs, Volume= 51.915 af 162.81 cfs @ 12.37 hrs, Volume= 51.915 af, Atten= 0%, Lag= 0.0 min

Type II 24-hr 100-yr Rainfall=6.10"

Page 42 8/27/2010

Routing by Stor-Ind+Trans method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs

Reach Rice-1: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

150.490 ac, Inflow Depth = 3.46" for 100-yr event 107.85 cfs @ 12.69 hrs, Volume= 43.404 af 107.85 cfs @ 12.69 hrs, Volume= 43.404 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs

Reach Rice-2: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

100.230 ac, Inflow Depth = 3.22" for 100-yr event 57.63 cfs @ 12.43 hrs, Volume= 26.901 af 57.63 cfs @ 12.43 hrs, Volume= 26.901 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs

Reach Rice-3: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow =

100.230 ac, Inflow Depth = 3.22" for 100-yr event 57.63 cfs @ 12.43 hrs, Volume= 26.901 af 57.63 cfs @ 12.43 hrs, Volume= 26.901 af, Atten= 0%, Lag= 0.0 min

Routing by Stor-Ind+Trans method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs

Pond I-203: Inflow Area = Inflow = Outflow = Discarded = Primary =

89.780 ac, Inflow Depth > 2.94" for 100-yr event 45.84 cfs @ 12.67 hrs, Volume= 21.984 af 41.99 cfs @ 13.43 hrs, Volume= 21.982 af, Atten= 8%, Lag= 45.8 min 1.01 cfs @ 9.95 hrs, Volume= 4.913 af 40.98 cfs @ 13.43 hrs, Volume= 17.068 af

Routing by Stor-Ind method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Peak Elev= 958.80' @ 13.43 hrs Surf.Area= 4.000 ac Storage= 3.195 af Plug-Flow detention time= 240.1 min calculated for 21.982 af (100% of inflow) Center-of-Mass det. time= 239.7 min ( 1,304.7 - 1,065.0 ) Volume #1

Invert 958.00'

Avail.Storage 8.000 af

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Type II 24-hr 100-yr Rainfall=6.10"

Elevation (feet) 958.00 960.00 Device #1

Surf.Area (acres) 4.000 4.000

Routing Primary

Inc.Store (acre-feet) 0.000 8.000

Invert 958.50'

Discarded

0.00'

Page 43 8/27/2010

Cum.Store (acre-feet) 0.000 8.000

Discarded OutFlow Max=1.01 cfs @ 9.95 hrs HW=958.02' (Free Discharge) 2=Exfiltration-HSG B (Exfiltration Controls 1.01 cfs) Primary OutFlow Max=40.96 cfs @ 13.43 hrs HW=958.80' (Free Discharge) 1=Broad-Crested Rectangular Weir (Weir Controls 40.96 cfs @ 1.4 fps)

Pond I-206a: [79] Warning: Submerged Pond P-204 Primary device # 1 OUTLET by 0.13' Inflow Area = Inflow = Outflow = Discarded = Primary =

61.340 ac, Inflow Depth > 4.08" for 100-yr event 12.86 cfs @ 13.98 hrs, Volume= 20.870 af 12.38 cfs @ 16.71 hrs, Volume= 20.863 af, Atten= 4%, Lag= 163.6 min 1.26 cfs @ 10.25 hrs, Volume= 7.584 af 11.12 cfs @ 16.71 hrs, Volume= 13.279 af

Routing by Stor-Ind method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Peak Elev= 959.63' @ 16.71 hrs Surf.Area= 5.000 ac Storage= 3.137 af Plug-Flow detention time= 405.8 min calculated for 20.853 af (100% of inflow) Center-of-Mass det. time= 404.2 min ( 1,877.3 - 1,473.1 ) Volume #1

Invert 959.00'

Elevation (feet) 959.00 961.00 Device #1 #2

Avail.Storage 10.000 af

Surf.Area (acres) 5.000 5.000

Routing Discarded Primary

Invert 0.00' 959.50'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 10.000

Cum.Store (acre-feet) 0.000 10.000

Type II 24-hr 100-yr Rainfall=6.10"

Page 44 8/27/2010

Discarded OutFlow Max=1.26 cfs @ 10.25 hrs HW=959.02' (Free Discharge) 1=Exfiltration - HSG B (Exfiltration Controls 1.26 cfs) Primary OutFlow Max=11.09 cfs @ 16.71 hrs HW=959.63' (Free Discharge) 2=Broad-Crested Rectangular Weir (Weir Controls 11.09 cfs @ 0.9 fps)

Pond I-206b: Inflow Area = Inflow = Outflow = Discarded = Primary =

98.970 ac, Inflow Depth > 3.61" for 100-yr event 59.83 cfs @ 12.25 hrs, Volume= 29.777 af 57.76 cfs @ 12.43 hrs, Volume= 29.776 af, Atten= 3%, Lag= 10.9 min 0.55 cfs @ 5.25 hrs, Volume= 3.000 af 57.20 cfs @ 12.43 hrs, Volume= 26.776 af

Routing by Stor-Ind method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Peak Elev= 948.87' @ 12.43 hrs Surf.Area= 2.200 ac Storage= 1.910 af Plug-Flow detention time= 120.4 min calculated for 29.761 af (100% of inflow) Center-of-Mass det. time= 120.3 min ( 1,247.7 - 1,127.4 ) Volume #1

Invert 948.00'

Elevation (feet) 948.00 950.00 Device #1 #2

Avail.Storage 4.400 af

Surf.Area (acres) 2.200 2.200

Routing Discarded Primary

Invert 0.00' 948.50'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 4.400

Cum.Store (acre-feet) 0.000 4.400

Discarded OutFlow Max=0.55 cfs @ 5.25 hrs HW=948.02' (Free Discharge) 1=Exfiltration - HSG B (Exfiltration Controls 0.55 cfs) Primary OutFlow Max=57.14 cfs @ 12.43 hrs HW=948.87' (Free Discharge) 2=Broad-Crested Rectangular Weir (Weir Controls 57.14 cfs @ 1.6 fps)

Pond I-207: Inflow Area = Inflow = Outflow = Discarded = Primary =

50.260 ac, Inflow Depth > 4.83" for 100-yr event 74.11 cfs @ 12.27 hrs, Volume= 20.232 af 57.19 cfs @ 12.97 hrs, Volume= 20.231 af, Atten= 23%, Lag= 42.0 min 0.81 cfs @ 5.65 hrs, Volume= 3.729 af 56.38 cfs @ 12.97 hrs, Volume= 16.502 af

Routing by Stor-Ind method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs

Type II 24-hr 100-yr Rainfall=6.10"

Page 45 8/27/2010

Peak Elev= 951.40' @ 12.97 hrs Surf.Area= 3.200 ac Storage= 4.466 af Plug-Flow detention time= 223.0 min calculated for 20.231 af (100% of inflow) Center-of-Mass det. time= 222.8 min ( 1,120.6 - 897.8 ) Volume #1

Invert 950.00'

Elevation (feet) 950.00 952.00 Device #1

Avail.Storage 6.400 af

Surf.Area (acres) 3.200 3.200

Routing Primary

Inc.Store (acre-feet) 0.000 6.400

Invert 950.50'

Discarded

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

0.00'

Cum.Store (acre-feet) 0.000 6.400

Discarded OutFlow Max=0.81 cfs @ 5.65 hrs HW=950.02' (Free Discharge) 2=Exfiltration - HSG B (Exfiltration Controls 0.81 cfs) Primary OutFlow Max=56.37 cfs @ 12.97 hrs HW=951.40' (Free Discharge) 1=Broad-Crested Rectangular Weir (Weir Controls 56.37 cfs @ 2.5 fps)

Pond I-208a: Inflow Area = Inflow = Outflow = Discarded = Primary =

31.180 ac, Inflow Depth > 2.49" for 100-yr event 6.03 cfs @ 13.71 hrs, Volume= 6.464 af 5.83 cfs @ 15.39 hrs, Volume= 6.463 af, Atten= 3%, Lag= 100.7 min 0.48 cfs @ 11.65 hrs, Volume= 2.253 af 5.35 cfs @ 15.39 hrs, Volume= 4.210 af

Routing by Stor-Ind method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Peak Elev= 982.58' @ 15.39 hrs Surf.Area= 1.900 ac Storage= 1.099 af Plug-Flow detention time= 358.6 min calculated for 6.460 af (100% of inflow) Center-of-Mass det. time= 357.8 min ( 1,590.2 - 1,232.4 ) Volume #1

Invert 982.00'

Elevation (feet) 982.00 984.00 Device #1

Avail.Storage 3.800 af

Surf.Area (acres) 1.900 1.900

Routing Primary

Invert 982.50'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 3.800

Cum.Store (acre-feet) 0.000 3.800

Outlet Devices 100.0' long x 3.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50

Type II 24-hr 100-yr Rainfall=6.10"

Discarded

0.00'

Page 46 8/27/2010

Coef. (English) 2.44 2.58 2.68 2.67 2.65 2.64 2.64 2.68 2.68 2.72 2.81 2.92 2.97 3.07 3.32 0.250 in/hr Exfiltration- HSG B over Surface area

Discarded OutFlow Max=0.48 cfs @ 11.65 hrs HW=982.02' (Free Discharge) 2=Exfiltration- HSG B (Exfiltration Controls 0.48 cfs) Primary OutFlow Max=5.34 cfs @ 15.39 hrs HW=982.58' (Free Discharge) 1=Broad-Crested Rectangular Weir (Weir Controls 5.34 cfs @ 0.7 fps)

Pond I-209: Inflow Area = Inflow = Outflow = Discarded = Primary =

34.400 ac, Inflow Depth > 4.19" for 100-yr event 30.69 cfs @ 12.39 hrs, Volume= 12.002 af 15.83 cfs @ 14.61 hrs, Volume= 12.001 af, Atten= 48%, Lag= 133.5 min 1.26 cfs @ 8.70 hrs, Volume= 7.676 af 14.57 cfs @ 14.61 hrs, Volume= 4.325 af

Routing by Stor-Ind method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Peak Elev= 934.15' @ 14.61 hrs Surf.Area= 2.500 ac Storage= 5.381 af Plug-Flow detention time= 1,078.1 min calculated for 12.001 af (100% of inflow) Center-of-Mass det. time= 1,077.8 min ( 2,045.5 - 967.6 ) Volume #1

Invert 932.00'

Elevation (feet) 932.00 935.00 Device #1 #2

Avail.Storage 7.500 af

Surf.Area (acres) 2.500 2.500

Routing Discarded Primary

Invert 0.00' 934.00'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 7.500

Cum.Store (acre-feet) 0.000 7.500

Discarded OutFlow Max=1.26 cfs @ 8.70 hrs HW=932.03' (Free Discharge) 1=Exfiltration - HSG A (Exfiltration Controls 1.26 cfs) Primary OutFlow Max=14.52 cfs @ 14.61 hrs HW=934.15' (Free Discharge) 2=Broad-Crested Rectangular Weir (Weir Controls 14.52 cfs @ 1.0 fps)

Type II 24-hr 100-yr Rainfall=6.10"

Page 47 8/27/2010

Pond P-202: Inflow Area = Inflow = Outflow = Primary =

52.080 ac, Inflow Depth = 4.32" for 100-yr event 229.68 cfs @ 12.01 hrs, Volume= 18.738 af 12.49 cfs @ 13.95 hrs, Volume= 18.289 af, Atten= 95%, Lag= 116.1 min 12.49 cfs @ 13.95 hrs, Volume= 18.289 af

Routing by Stor-Ind method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Starting Elev= 946.00' Surf.Area= 2.686 ac Storage= 9.520 af Peak Elev= 949.88' @ 13.95 hrs Surf.Area= 3.379 ac Storage= 21.292 af (11.772 af above start) Plug-Flow detention time= 1,303.6 min calculated for 8.769 af (47% of inflow) Center-of-Mass det. time= 657.2 min ( 1,436.7 - 779.4 ) Volume #1

Invert 942.00'

Elevation (feet) 942.00 946.00 950.00 Device #1

Avail.Storage 21.692 af

Surf.Area (acres) 1.220 1.580 2.000

Routing Primary

Invert 946.00'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc) x 1.7

Inc.Store (acre-feet) 0.000 5.600 7.160

Cum.Store (acre-feet) 0.000 5.600 12.760

Outlet Devices 18.0" x 100.0' long Culvert RCP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 945.80' S= 0.0020 '/' Cc= 0.900 n= 0.013

Primary OutFlow Max=12.49 cfs @ 13.95 hrs HW=949.88' (Free Discharge) 1=Culvert (Barrel Controls 12.49 cfs @ 7.1 fps)

Pond P-203: Inflow Area = Inflow = Outflow = Primary =

89.780 ac, Inflow Depth = 2.96" for 100-yr event 257.70 cfs @ 12.05 hrs, Volume= 22.159 af 45.84 cfs @ 12.67 hrs, Volume= 21.984 af, Atten= 82%, Lag= 37.5 min 45.84 cfs @ 12.67 hrs, Volume= 21.984 af

Routing by Stor-Ind method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Starting Elev= 968.00' Surf.Area= 2.480 ac Storage= 9.328 af Peak Elev= 971.85' @ 12.67 hrs Surf.Area= 2.788 ac Storage= 19.462 af (10.134 af above start) Plug-Flow detention time= 592.6 min calculated for 12.656 af (57% of inflow) Center-of-Mass det. time= 253.6 min ( 1,065.0 - 811.4 ) Volume #1 Elevation (feet) 964.00 968.00 972.00

Invert 964.00'

Avail.Storage 19.888 af

Surf.Area (acres) 5.460 6.200 7.000

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc) x 0.4

Inc.Store (acre-feet) 0.000 23.320 26.400

Cum.Store (acre-feet) 0.000 23.320 49.720

Type II 24-hr 100-yr Rainfall=6.10"

Device #1

Routing Primary

Invert 968.00'

Page 48 8/27/2010

Outlet Devices 36.0" x 50.0' long Culvert RCP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 967.75' S= 0.0050 '/' Cc= 0.900 n= 0.013

Primary OutFlow Max=45.84 cfs @ 12.67 hrs HW=971.85' (Free Discharge) 1=Culvert (Barrel Controls 45.84 cfs @ 6.6 fps)

Pond P-204: Inflow Area = Inflow = Outflow = Primary =

61.340 ac, Inflow Depth = 4.18" for 100-yr event 292.72 cfs @ 12.01 hrs, Volume= 21.364 af 12.86 cfs @ 13.98 hrs, Volume= 20.870 af, Atten= 96%, Lag= 118.1 min 12.86 cfs @ 13.98 hrs, Volume= 20.870 af

Routing by Stor-Ind method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Starting Elev= 960.00' Surf.Area= 3.340 ac Storage= 12.120 af Peak Elev= 963.74' @ 13.98 hrs Surf.Area= 3.957 ac Storage= 25.757 af (13.637 af above start) Plug-Flow detention time= 1,473.1 min calculated for 8.746 af (41% of inflow) Center-of-Mass det. time= 702.8 min ( 1,473.1 - 770.3 ) Volume #1

Invert 956.00'

Elevation (feet) 956.00 960.00 964.00 Device #1

Avail.Storage 26.800 af

Surf.Area (acres) 2.720 3.340 4.000

Routing Primary

Invert 960.00'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 12.120 14.680

Cum.Store (acre-feet) 0.000 12.120 26.800

Outlet Devices 18.0" x 100.0' long Culvert RCP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 959.50' S= 0.0050 '/' Cc= 0.900 n= 0.013

Primary OutFlow Max=12.86 cfs @ 13.98 hrs HW=963.74' (Free Discharge) 1=Culvert (Barrel Controls 12.86 cfs @ 7.3 fps)

Pond P-206: Inflow Area = Inflow = Outflow = Primary =

37.630 ac, Inflow Depth = 5.27" for 100-yr event 248.13 cfs @ 12.01 hrs, Volume= 16.519 af 59.83 cfs @ 12.25 hrs, Volume= 16.498 af, Atten= 76%, Lag= 14.7 min 59.83 cfs @ 12.25 hrs, Volume= 16.498 af

Routing by Stor-Ind method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Starting Elev= 968.00' Surf.Area= 1.580 ac Storage= 5.600 af Peak Elev= 971.79' @ 12.25 hrs Surf.Area= 1.978 ac Storage= 12.337 af (6.737 af above start) Plug-Flow detention time= 365.2 min calculated for 10.898 af (66% of inflow) Center-of-Mass det. time= 142.8 min ( 894.9 - 752.1 )

Type II 24-hr 100-yr Rainfall=6.10"

Volume #1

Invert 964.00'

Elevation (feet) 964.00 968.00 972.00 Device #1

Avail.Storage 12.760 af

Surf.Area (acres) 1.220 1.580 2.000

Routing Primary

Invert 968.00'

Page 49 8/27/2010

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 5.600 7.160

Cum.Store (acre-feet) 0.000 5.600 12.760

Outlet Devices 27.0" x 50.0' long Culvert X 2.00 RCP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 967.75' S= 0.0050 '/' Cc= 0.900 n= 0.013

Primary OutFlow Max=59.82 cfs @ 12.25 hrs HW=971.79' (Free Discharge) 1=Culvert (Barrel Controls 59.82 cfs @ 7.5 fps)

Pond P-207: Inflow Area = Inflow = Outflow = Primary =

50.260 ac, Inflow Depth = 4.84" for 100-yr event 295.64 cfs @ 12.01 hrs, Volume= 20.268 af 74.11 cfs @ 12.27 hrs, Volume= 20.232 af, Atten= 75%, Lag= 15.6 min 74.11 cfs @ 12.27 hrs, Volume= 20.232 af

Routing by Stor-Ind method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Starting Elev= 960.00' Surf.Area= 1.788 ac Storage= 6.312 af Peak Elev= 963.99' @ 12.27 hrs Surf.Area= 2.278 ac Storage= 14.418 af (8.106 af above start) Plug-Flow detention time= 346.7 min calculated for 13.920 af (69% of inflow) Center-of-Mass det. time= 138.4 min ( 897.8 - 759.5 ) Volume #1

Invert 956.00'

Elevation (feet) 956.00 960.00 964.00 970.01 Device #1

Avail.Storage 28.151 af

Surf.Area (acres) 1.140 1.490 1.900 1.900

Routing Primary

Invert 960.00'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc) x 1.2

Inc.Store (acre-feet) 0.000 5.260 6.780 11.419

Cum.Store (acre-feet) 0.000 5.260 12.040 23.459

Outlet Devices 30.0" x 50.0' long Culvert X 2.00 RCP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 959.75' S= 0.0050 '/' Cc= 0.900 n= 0.013

Primary OutFlow Max=74.01 cfs @ 12.27 hrs HW=963.98' (Free Discharge) 1=Culvert (Barrel Controls 74.01 cfs @ 7.5 fps)

Type II 24-hr 100-yr Rainfall=6.10"

Page 50 8/27/2010

Pond P-208a: Inflow Area = Inflow = Outflow = Primary =

31.180 ac, Inflow Depth = 2.51" for 100-yr event 60.06 cfs @ 12.05 hrs, Volume= 6.517 af 6.03 cfs @ 13.71 hrs, Volume= 6.464 af, Atten= 90%, Lag= 99.8 min 6.03 cfs @ 13.71 hrs, Volume= 6.464 af

Routing by Stor-Ind method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Starting Elev= 986.00' Surf.Area= 1.000 ac Storage= 3.440 af Peak Elev= 989.04' @ 13.71 hrs Surf.Area= 1.251 ac Storage= 6.860 af (3.420 af above start) Plug-Flow detention time= 910.3 min calculated for 3.022 af (46% of inflow) Center-of-Mass det. time= 404.7 min ( 1,232.4 - 827.7 ) Volume #1

Invert 982.00'

Elevation (feet) 982.00 986.00 990.00 Device #1

Avail.Storage 8.100 af

Surf.Area (acres) 0.720 1.000 1.330

Routing Primary

Invert 986.00'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 3.440 4.660

Cum.Store (acre-feet) 0.000 3.440 8.100

Outlet Devices 12.0" x 20.0' long Culvert RCP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 985.90' S= 0.0050 '/' Cc= 0.900 n= 0.013

Primary OutFlow Max=6.03 cfs @ 13.71 hrs HW=989.04' (Free Discharge) 1=Culvert (Inlet Controls 6.03 cfs @ 7.7 fps)

Pond P-208b: Inflow Area = Inflow = Outflow = Primary =

58.040 ac, Inflow Depth = 2.75" for 100-yr event 123.27 cfs @ 12.02 hrs, Volume= 13.291 af 27.08 cfs @ 12.39 hrs, Volume= 10.406 af, Atten= 78%, Lag= 22.3 min 27.08 cfs @ 12.39 hrs, Volume= 10.406 af

Routing by Stor-Ind method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Peak Elev= 973.69' @ 12.39 hrs Surf.Area= 1.468 ac Storage= 4.937 af Plug-Flow detention time= 316.1 min calculated for 10.406 af (78% of inflow) Center-of-Mass det. time= 187.9 min ( 1,102.8 - 914.9 ) Volume #1 Elevation (feet) 968.00 972.00 974.00

Invert 968.00'

Avail.Storage 5.400 af

Surf.Area (acres) 0.160 0.320 0.520

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc) x 3

Inc.Store (acre-feet) 0.000 0.960 0.840

Cum.Store (acre-feet) 0.000 0.960 1.800

Type II 24-hr 100-yr Rainfall=6.10"

Device #1

Routing Primary

Invert 972.00'

Page 51 8/27/2010

Outlet Devices 36.0" x 50.0' long Culvert X 2.00 RCP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 971.75' S= 0.0050 '/' Cc= 0.900 n= 0.013

Primary OutFlow Max=27.05 cfs @ 12.39 hrs HW=973.69' (Free Discharge) 1=Culvert (Barrel Controls 27.05 cfs @ 4.8 fps)

Pond P-209: Inflow Area = Inflow = Outflow = Primary =

34.400 ac, Inflow Depth = 4.21" for 100-yr event 170.88 cfs @ 12.01 hrs, Volume= 12.054 af 30.69 cfs @ 12.39 hrs, Volume= 12.002 af, Atten= 82%, Lag= 22.6 min 30.69 cfs @ 12.39 hrs, Volume= 12.002 af

Routing by Stor-Ind method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Starting Elev= 950.00' Surf.Area= 1.390 ac Storage= 4.840 af Peak Elev= 953.47' @ 12.39 hrs Surf.Area= 1.746 ac Storage= 10.285 af (5.445 af above start) Plug-Flow detention time= 487.2 min calculated for 7.158 af (59% of inflow) Center-of-Mass det. time= 201.8 min ( 967.6 - 765.9 ) Volume #1

Invert 946.00'

Elevation (feet) 946.00 950.00 954.00 Device #1

Avail.Storage 11.220 af

Surf.Area (acres) 1.030 1.390 1.800

Routing Primary

Invert 950.00'

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc)

Inc.Store (acre-feet) 0.000 4.840 6.380

Cum.Store (acre-feet) 0.000 4.840 11.220

Outlet Devices 30.0" x 100.0' long Culvert RCP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 949.50' S= 0.0050 '/' Cc= 0.900 n= 0.013

Primary OutFlow Max=30.68 cfs @ 12.39 hrs HW=953.47' (Free Discharge) 1=Culvert (Barrel Controls 30.68 cfs @ 6.3 fps)

Pond P-209a: Inflow Area = Inflow = Outflow = Primary =

13.690 ac, Inflow Depth = 4.21" for 100-yr event 68.02 cfs @ 12.01 hrs, Volume= 4.798 af 6.14 cfs @ 12.73 hrs, Volume= 4.788 af, Atten= 91%, Lag= 42.8 min 6.14 cfs @ 12.73 hrs, Volume= 4.788 af

Routing by Stor-Ind method, Time Span= 0.00-96.00 hrs, dt= 0.05 hrs Starting Elev= 934.00' Surf.Area= 0.560 ac Storage= 1.876 af Peak Elev= 937.66' @ 12.73 hrs Surf.Area= 0.765 ac Storage= 4.302 af (2.426 af above start) Plug-Flow detention time= 570.4 min calculated for 2.911 af (61% of inflow) Center-of-Mass det. time= 267.0 min ( 1,032.9 - 765.9 )

Type II 24-hr 100-yr Rainfall=6.10"

Volume #1

Invert 930.00'

Elevation (feet) 930.00 934.00 938.00 Device #1

Avail.Storage 4.564 af

Surf.Area (acres) 0.270 0.400 0.560

Routing Primary

Invert 934.00'

Page 52 8/27/2010

Storage Description Custom Stage Data (Prismatic) Listed below (Recalc) x 1.4

Inc.Store (acre-feet) 0.000 1.340 1.920

Cum.Store (acre-feet) 0.000 1.340 3.260

Outlet Devices 12.0" x 50.0' long Culvert RCP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 933.75' S= 0.0050 '/' Cc= 0.900 n= 0.013

Primary OutFlow Max=6.14 cfs @ 12.73 hrs HW=937.66' (Free Discharge) 1=Culvert (Barrel Controls 6.14 cfs @ 7.8 fps)

MEMO

To: From: Subject: Date:

Jeff McMenimen – HKGI, Inc. Joe Samuel, PE Northfield Development August 30, 2010

Conceptual stormwater management plans were developed for each of the two prospective development sites; hereafter referred to as the northern development site and the southern development site, respectively. The conceptual stormwater management plans were prepared in accordance with the standards included in the City’s (draft) stormwater management ordinance. These standards are as follows: 1. Post development peak discharge rates for the development site must not exceed pre‐ settlement rates for the 2‐yr and 100‐yr events. For purposes of this evaluation; post development discharge rates were evaluated and compared at all points where runoff exits the development site, as opposed to making a cumulative comparison of the total rate of runoff leaving the site. Additionally, comparisons were made at various discrete locations within public waters to ensure no increases were occurring within the site that may damage the character of the bed and bank of public waters within the property boundary. 2. Post development runoff must be treated to provide 90% TSS and 60% TP reductions. As is discussed later under ‘Additional Considerations’ portion of this memo, the ordinance is geared toward implementation of wet detention ponds. As a result the principal water quality treatment devices included in the concept designs are wet detention ponds. Additional discussion is provided regarding alternative management practices and how this standard might be met using such practices if additional leeway is granted under the City’s stormwater management ordinance. Offices in Illinois, Iowa, Minnesota, and Wisconsin 412 Hayward Avenue North, Oakdale, MN 55128 (651) 714-9600 (866) 452-9454 FAX: (651) 738-9655 WEB ADDRESS: www.msa-ps.com M:\Northfield\009-PRO#-Northfield 3rd. Business Industrial Park\Project Ref File\Utilities\No

3. Post development infiltration practices must be specified which infiltrate 0.75 inches of runoff from impervious surfaces. It was assumed that this is strictly a requirement that infiltration BMPs provide this cumulative minimum volume, and that this does not reflect an annual, or event‐bsaed criteria. It is also assumed that this is not watershed or drainage direction specific, merely a total for a site. For this evaluation it was further assumed that infiltration practices need to drain completely dry (as measured from the lowest invert of a surface discharge point to the bottom of the above‐ground infiltration storage area) within 24‐hours. Given that the majority of the soils within the development sites are classified as belonging to hydrologic soil group B and can be assigned an infiltration rate of 0.25 inches per hour, the maximum ponding depth of infiltration facilities is six inches. 4. Post development infiltration practices must be specified for developments within Rice Creek watershed such that post‐development runoff volumes for the 2‐yr event do not exceed existing conditions runoff volumes for the 2‐yr event. For this evaluation it was assumed that existing conditions means, actual current land use conditions and not pre‐settlement conditions, as the distinction between these development conditions is made clear in other areas where land use conditions are described. Note that for the modeling conducted to determine this assessment only the runoff curve numbers were modified from the pre‐settlement hydrologic model so that runoff volumes could be compared. In actuality, the subwatershed times‐of‐ concentration should also be modified to determine actual runoff rates, however as this has no bearing on runoff volume it was unnecessary for this study.

Methods The computer model HydroCAD 7.1 was used to prepare stormwater management calculations for pre‐ development and proposed development conditions. HydroCAD uses the TR‐55, ‘Urban Hydrology for Small Watersheds’ (USDA, 1986) methodology of calculating runoff volumes and routing operations.

In addition to a rainfall data record to be used to similar runoff conditions; TR-55 requires three primary input parameters which can be used to determine peak discharge rates and runoff volumes from a particular rainfall event. These parameters describe the runoff characteristics of a watershed and include drainage area, runoff curve number, and time of concentration. The model uses these input parameters to translate a rainfall hyetograph (distribution of rainfall depth over time) to a runoff hydrograph which the model then routes through a system of management devices to determine the effect on peak runoff rates and flood elevations. Finally it is necessary to Offices in Illinois, Iowa, Minnesota, and Wisconsin 412 Hayward Avenue North, Oakdale, MN 55128 (651) 714-9600 (866) 452-9454 FAX: (651) 738-9655 WEB ADDRESS: www.msa-ps.com M:\Northfield\009-PRO#-Northfield 3rd. Business Industrial Park\Project Ref File\Utilities\No

define the geometry (storage volume, outlet configuration, infiltration capacity) of existing and proposed drainage and stormwater management infrastructure so that the model can route runoff hydrographs through the system so that discharge rates and volumes can be determined. This memo will not go into detail describing the various model input and output data that were developed for the evaluation; rather the reader is referred to the attached maps, tables, and model input and output which provides all the details necessary to describe the drainage system.

Conceptual SWMP for Northern Development Site The northern site is 524.3 acres in size and, for this concept design, will be served by four regional stormwater management facilities consisting of paired wet detention and infiltration basins. The stormwater facilities serving the north-central portion of the site would best be described as a greenway as it will occupy a natural low area and, in addition to provide stormwater management will be a principal conveyance for stormand flood-waters as well. There will be 12 individual basins within the site, seven wet ponds and five infiltration basins. A total area of 40.1 acres of land will be occupied by stormwater management facilities which represents approximately 7.6% of the project site – not including an area of land-locked floodplain on the south-central portion of the site. This is somewhat high compared to a traditional norm of roughly 5%; however this is a comparatively dense development site. A sketch of the concept stormwater management plan is included with this document.

Considerations for Northern Development Site From a strict post-development stormwater management perspective, the northern site is less suitable for development than the southern site (discussed below) even considering the additional stormwater management requirements for the Rice Creek Watershed which affect the southern development site. The two principcal issues which limit the development potential of the northern site are: The extensive presence of wetland indicators. Aside from obvious wetland protection issues, the presence of wetland is indicative of at least seasonally high groundwater which will not be suitable for infiltration. The likely high groundwater condition will either result in the site being non-compliant with the infiltration performance standard of the City’s ordinance, or will require such large infiltration areas (the allowable ponding depth will need to be very small, much less than the assumed allowable six inches reflected in the concept design) that it will make the site economically infeasible. Offices in Illinois, Iowa, Minnesota, and Wisconsin 412 Hayward Avenue North, Oakdale, MN 55128 (651) 714-9600 (866) 452-9454 FAX: (651) 738-9655 WEB ADDRESS: www.msa-ps.com M:\Northfield\009-PRO#-Northfield 3rd. Business Industrial Park\Project Ref File\Utilities\No

The absence of a culvert to provide off-site discharge from the site to the south results in the creation of a very large area (> 22 acres) of floodplain on the postdevelopment site. The floodplain boundary, when delineated according to existing topography, is expected to extend well into the proposed development area and will have major ramifications on site grading, the performance of stormwater management (water quality/infiltration). Additionally, since the area is covered by wetland indicators and so is likely principally wetland, there will be wetland conservation issues associated with the site.

Conceptual SWMP for Southern Development Site The southern site is 546.8 acres in size and, for this concept design, will be served by six regional stormwater management facilities consisting of paired wet detention and infiltration basins. There will be 15 individual basins within the site, nine wet ponds and six infiltration basins. A total area of 38.2 acres of land will be occupied by stormwater management facilities (proper) which, despite its comparably less-dense development plan in comparison to the northern site, still represents nearly 7.0% of the project site. The actual amount of land required to construct and maintain the stormwater facilities is expected to be approximately 20% larger, though, due to site topography; resulting in approximately 8.4% of the project site. This is somewhat high compared to a traditional norm of roughly 5%. A sketch of the concept stormwater management plan is included with this document.

Considerations for Southern Development Site The only real significant challenges associated with the southern development site have to do with topography and the large elevation changes across individual subwatersheds. Regardless, the proposed stormwater management facilities can still largely be accommodate within the allocated green spaces at the current proposed density. Site topography will probably result in the need for as much as approximate 20% more stormwater management surface area than has been currently identified. There may be loss of at least on large non-residential lot, compromise to another non-residential lot (far SE corner) and loss of at least 2 residential lots.

Additional Considerations: Soil Testing for Infiltration Capacity. Soil testing should be conducted prior to design, or even planning, of infiltration facilities. The infiltration rates allowed by the ordinance (0.25 in/hr for type B soils, for example) are pretty generous. What’s more is the ordinance requires infiltration in all cases; there are many physical conditions which can make infiltration impractical at best, and doomed-to-failure at worst. In areas with ‘tighter’ soils (less than the typical ‘type-B’ infiltration rate), the infiltration practices need Offices in Illinois, Iowa, Minnesota, and Wisconsin 412 Hayward Avenue North, Oakdale, MN 55128 (651) 714-9600 (866) 452-9454 FAX: (651) 738-9655 WEB ADDRESS: www.msa-ps.com M:\Northfield\009-PRO#-Northfield 3rd. Business Industrial Park\Project Ref File\Utilities\No

to have a very large footprint to drain dry in a time-period that won’t result in anaerobic soil conditions or killing the vegetation which will have obvious aesthetic impacts. Additionally, in areas where there is high groundwater infiltration will not work. Additionally, if native soils have any measurable clay content, interaction with road-salt can cause cat-ion exchanges that complete plug infiltration facilities Source Area Water Quality Assessments. There is a fundamental challange with the City’s ordinance when evaluating ‘conservation’ or ‘LID’ designs for compliance with the stormwater management standards. The issue is that there is no quantifiable ‘benchmark’ from which to evaluate TSS reduction; rather it is only a percent reduction. This is to say that it doesn’t matter how much is load is actually generated in the watershed or how much is actually discharged from the site; rather there is only a standard to reduce the amount that is delivered to the final structural BMP load (whatever it may be) by 90%. The ordinance specifies a design standard; simply put, the ordinance assumes that a design achieves 90% TSS reduction provided the pond geometry properly reflects watershed factors relating to the volume of runoff from a 2-yr 24-hr rain storm. Without an ability to evaluate TSS reduction between the originally pollutant source area and the point of discharge from the site, it is difficult to comply with the ordinance using alternative stormwater management practices, such as those which might be described as green or low-impact. Credit for Disconnection of Impervious Surfaces. Building on the previous topic, consideration should be given towards exploring alternative standards for development approval in the City’s ordinance. As previously mentioned focusing on ‘end-of-the-pipe’ management allows (almost) no credit for green land-use practices such as disconnecting impervious area, pervious pavement, swale collection systems etc. Some credit can be realized in the reduction of rate control facilities as it is easy enough to quantify the change in runoff volume resulting from these practices, but there is no accommodation for infiltration or water quality treatment benefits from these practices. Example 1: one acre (1) of commercial roof If directly connected to the drainage system produces 80,221 cf of runoff and 165 lbs of sediment annually If disconnected, or indirectly connected, it will produce only 6,277 cf of runoff and 13 lbs of sediment annually – this is a 92% reduction of both parameters Example 2: one acre (1) of commercial parking/driveway If directly connected to the drainage system produces 75,906 cf of runoff and 615 lbs of sediment annually Offices in Illinois, Iowa, Minnesota, and Wisconsin 412 Hayward Avenue North, Oakdale, MN 55128 (651) 714-9600 (866) 452-9454 FAX: (651) 738-9655 WEB ADDRESS: www.msa-ps.com M:\Northfield\009-PRO#-Northfield 3rd. Business Industrial Park\Project Ref File\Utilities\No

If disconnected, or indirectly connected, it will produce only 6,277 cf of runoff and 51 lbs of sediment annually – similarly, a 92% reduction of both parameters Disconnection of impervious area (from non-residential developments) has the capacity to meet the City’s water quality treatment requirements without a constructed BMP. Note, the numbers cited above were generated using the WinSLAMM computer model which is an accounting model based on recent empirical data from states in the upper midwest of the United States (primarily Wisconsin) If methods for source area assessments and the effects of un- or indirectly connected impervious areas are allowed under the stormwater management ordinance then there is great potential for alternative stormwater management practices for either site. If volume reduction credit is given for the difference in potential runoff volumes from disconnected and connected impervious areas, along with water quality treatment (TSS reduction), then this could eliminate the need for traditional wet ponds in favor of dry ponds which function primarily as peak-rate/flood control devices - which could then take on more or the characteristics of native prairie or wetland restorations adding further green, or ‘low-impact’ development characteristics.

Offices in Illinois, Iowa, Minnesota, and Wisconsin 412 Hayward Avenue North, Oakdale, MN 55128 (651) 714-9600 (866) 452-9454 FAX: (651) 738-9655 WEB ADDRESS: www.msa-ps.com M:\Northfield\009-PRO#-Northfield 3rd. Business Industrial Park\Project Ref File\Utilities\No