Waterfront Fall/Winter 2023

THE OFFICIAL PUBLICATION OF THE OHIO SECTION AMERICAN WATER WORKS ASSOCIATION

FALL/WINTER 2023

KENT PUBLIC WATER SYSTEM CELEBRATES ITS

100th Anniversary

Address Service Requested.

Ohio Section American Water Works Association – 400 West Wilson Bridge Road, Suite 120, Worthington, Ohio 43085

Valve Assessment & Exercising

Asset Management Services Pipeline Condition Assessment

Leak Detection , Surveys & Audits

Manhole Inventory & Mapping

Large Meter Testing

Wastewater Services

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Hydrant Flow Testing (Water Main Capacity)

Transmission Main Leak Detection 800.255.1521 mesimpson.com

Waterfront FALL/WINTER 2023

CHAIR Mike Giangiordano Michael.Giangiordano@jacobs.com VICE-CHAIR Luke Murry lmurry@gpdgroup.com AT-LARGE TRUSTEE Jason Adkins jadkins@indianhill.gov AT-LARGE TRUSTEE Jennifer Webster jennifer.webster@arcadis NE DISTRICT TRUSTEE Denita Bonhart denita_bonhart@clevelandwater.com NW DISTRICT TRUSTEE Scott Ballenger sjballenger@aquaamerica.com SE DISTRICT TRUSTEE Tyler York yorkta@bv.com SW DISTRICT TRUSTEE Lance Livesay Lance.livesay@amwater.com TREASURER Valerie Copanic vcopanic@warren.org SECRETARY Glenn Marzluf gmarzluf@delcowater.com PAST CHAIR Marcus Lehotay marcus.lehotay@fairbornoh.gov AWWA DIRECTOR Tyler Converse tyler.converse@cantonohio.gov EXECUTIVE DIRECTOR Emily Pierson emily@assnoffices.com ASSOCIATION COORDINATOR Sydney Brennan sydney@assnoffices.com

WATERFRONT is published by

FEATURES ‘Take one with you’ – The Power of Mentorship and Why We Need to Harness It in the Water Industry ............. 15 2023 One Water Joint Conference ................................................ 16 2023 Ohio AWWA Award Recipients ............................................ 21 Battling Salt in Our Water ................................................................ 27 Kent Public Water System Celebrates its 100th Anniversary .................................................. 37 Nanobubble Ozone Technology: A Potential New Treatment for Harmful Algal Blooms ............. 41 KENT PUBLIC WATER SYSTEM CELEBRATES ITS

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100th Anniversary

DEPARTMENTS Straight From the Chair ..................................................................................................................7

Tel: 866-985-9780 Fax: 866-985-9799 www.kelman.ca Managing Editor Design/layout Advertising Sales Advertising Co-ordinator

Julia Waterer Jackie Magat Jeff Kutny Stefanie Hagidiakow

Director’s Report .............................................................................................................................9 2023–2024 Governing Board Election Results ..........................................................................11 Call for Nominations .....................................................................................................................13 OAWWA Diversity & Inclusion Update ........................................................................................ 31 YP Committee Update ................................................................................................................. 32

©2023 Craig Kelman & Associates Ltd. All rights reserved. The contents of this publication, which does not necessarily refl ect the opinion of the publisher or the association, may not be reproduced by any means, in whole or in part, without prior written consent of the publisher.

Address Service Requested.

Ohio Section American Water Works Association 400 West Wilson Bridge Road, Suite 120 Worthington, Ohio 43085

2023 Scholarship Recipients ...................................................................................................... 39 Advertiser Product & Service Center.......................................................................................... 46

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Straight From The Chair

Are We Ready?

O

ver the years I’ve heard many stories of how people became active in the AWWA. I’m fascinated by these experiences and often use the question, “How did you find yourself to be in the water industry?” as an ice breaker. Few of us planned to be doing what we do. Many stories have similarities, but each is unique. Take a minute and reflect on your water story. Who encouraged you to become a member? Why are you reading this newsletter? What benefits do you receive from your participation, and how could they also benefit your peers that aren’t yet aware? I reflected on my water story after the passing of the gavel at the One Water Conference. It’s different from yours but I bet there is at least one similarity: we just showed up. That’s step one.

Walking the halls at One Water, I was greeted by a popular question regarding filling the Chair position, asked by many influential leaders. “Are you ready?” My first thought was, “What did I just sign up for?” but then I reflected on our recent momentum and our refreshed strategic plan. I realized it’s not a question for me, but for us.

Are we ready?

Are we ready to address diversity, equity and inclusion?

Are we ready to address the next rounds of regulation updates?

Are we ready to engage our members differently?

Are we ready to tackle what training and development means today? In the future?

I think the answer is yes. But it’s not me alone. It’s not the Chair, Governing Board, Districts, or Committees alone that are responsible for driving this strategic plan. It is us. The Ohio Section of American Water Works Association, and all of us it encompasses, have the voice to influence change.

The Ohio Section is in good hands because of all of you.

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MIKE GIANGIORDANO Jacobs

You’ll see some changes as the board rolls out new initiatives developed from the Section’s Strategic Plan. More updates will follow in later issues and communications. In the meantime, please stay active. Reflect on your water story, and let us maintain our existing relationships, be open to new ones and encourage a new wave of water professionals to discover their water story and experiences.

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Director’s Report

Being the Best We Can Be

A

s we begin to wrap up another year of doing business, we naturally find ourselves thinking about the past year, what went well and what we could have done better. We also start planning for the new year to come. While planning, hopefully you realize the invaluable benefit of attending and participating in in-person events sponsored by Ohio AWWA. The networking of peers and casual conversations held during plant tours and workshop breaks are instrumental to personal and professional growth.

Although there is a time and place for remote learning, nothing can replace in-person learning opportunities, in my experience.

This time of year is also when budgets are established.

Please make sure to include funds for both your AWWA membership, and for travel and training for yourself and your fellow employees. Investing in employee professional growth through AWWA sponsored events is some of the best money your organization will ever spend.

The fall season is also a time when we contemplate our approach to business in the coming year. With difficult

TYLER S. CONVERSE

challenges at hand, such as elevated inflation and borrowing costs, increasingly stringent and costly regulatory requirements, difficulty hiring and retaining top employees, and affordability issues, just to name a few, we no longer have the luxury of ignoring industry ‘best business practices’ for our organizations. We must continue to become more efficient and effective with limited resources available to us. Is your utility positioned to meet these challenges? How would you know? One way to find out is to peruse the findings of AWWA Water 2050 project, available online on the AWWA website.

There, you can easily review the think-tank summary results in the categories of Sustainability, Technology, Economics, Governance, and Social/Demographics. By comparing your business’ approach to that of subjectmatter experts in these reports, you can gain invaluable insights into your organization’s position in the market.

I encourage you to do so as you consider your pathway into 2024.

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2023 Annual Sponsors Platinum Sponsors

Gold Sponsors

Silver Sponsors

Bronze Sponsors

Copper Sponsors

2023-2024 Governing Board Election Results Chair Mike Giangiordano, Jacobs

Vice Chair Luke Murry, GPD Group

Treasurer Valeria Copanic, City of Warren

AWWA Director Tyler Converse, City of Canton

At-Large Trustee Jennifer Webster, Arcadis

Secretary Glen Marzluf, Del-Co Water Company

SE District Trustee Tyler York, Black & Veatch

Outgoing Board

Thank you to the following individuals for their service to the Ohio water and wastewater profession.

George Sendrey, Secretary RETURN TO TABLE OF CONTENTS

Daryl Bowling, At-Large Trustee FALL/WINTER 2023

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Call for Nominations:

Be a Leader Over the next few months, the Governing Board will be discussing nominations for five Section-level positions.

All Governing Board members must be an active member of the Ohio Section, and are expected to act as a liaison, advisor and advocate to Committees as assigned by the Section Governing Board.

VICE CHAIR Term: Three Years (one year as Vice Chair, one year as Chair, one year as Past Chair) Must have served one term on the Section Governing Board.

Responsibilities include but are not limited to: presiding at meetings of the Section and of the Governing Board in the absence of the Chair, and serving as Chair of the Nominating Committee.

TREASURER Term: Three Years Must have served one term as Assistant Treasurer or in another voting Governing Board position.

Responsibilities include but are not limited to: providing oversight to administrative staff in regards to maintaining Section bank and investment accounts, financial records of all Section funds, and 501c3 designation and tax exempt status as appropriate in Ohio, overseeing annual tax filings, the annual budget, and implementation of financial policies, preparing reports for Governing Board meetings and the Annual Business Meeting, and conducting annual meeting with Section’s Assistant Treasurer and District Treasurers.

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NORTHEAST DISTRICT TRUSTEE Term: Four Years Must have served as an Ohio Section District officer or Committee chair.

Responsibilities include but are not limited to: acting as a liaison, advisor and advocate to the District represented, reporting in the absence of District Chair on District activities during Governing Board meetings, communicate decisions and actions of the Governing Board to the District Chair, and attending all District meetings for the District represented.

These positions are elected during the Annual Conference Member Appreciation Luncheon in Sandusky, OH in August 2024. If you or someone you know would like to be considered by the Nomination Committee, please forward by February 15, 2024, the applicant’s name, email, and phone number to Luke Murry at lmurry@gpdgroup.com. The persons elected will have the opportunity and responsibility to help guide our organization by serving on the Governing Board.

If elected, you will also develop many lasting friendships with people throughout our profession. This volunteer position requires attendance at several committee and Governing Board meetings, in addition to various District meetings and committee workshops throughout the year. Because the work of the Governing Board does take time, the individual selected by the nomination committee must have full support of their employer. In addition to the time requirement, we also ask the employer to be prepared to absorb a significant portion of travel and lodging expenses related to Governing Board business.

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‘Take one with you’ – The Power of Mentorship and Why We Need to Harnwess It in the Water Industry

By Megan Shortridge, Ohio Environmental Protection Agency, Division of Drinking and Ground Waters The contents of this paper/publication are the personal opinions of the author and may not reflect the policy or procedures of the Ohio Environmental Protection Agency.

In a world where we are seeing unprecedented turnover in the water industry due to retirements, the importance of mentorship cannot be overstated in recruiting and retaining the next generation of water professionals. In fields where minorities have been historically underrepresented, mentorship plays a pivotal role in empowering individuals, bridging gaps, and fostering an environment of collaboration.

Mentorship does not have to be complicated. It is something each of us can put into practice today, no matter where we are in our career.

This is where ‘take one with you’ comes into play. Whoever you are, wherever you are going, always look around and think about taking at least one other person with you, as often as you can. Are you part of an interesting committee centered on new technology in the water industry? Take a co-worker with you to observe. Are you going out to dinner with colleagues during a conference? Grab a new or younger colleague and bring them along. Did someone make an insightful observation, a great presentation, or finish up a challenging project? Say something kind! Your words may be just what they need to hear.

During OneWater this year, Women in Water put together a fantastic Women’s Networking Event. During that event, I was saddened by the notion that some individuals may contribute to an unhealthy (and sometimes downright toxic) RETURN TO TABLE OF CONTENTS

work environment because they themselves had a hard time at that stage in their career. We’ve all overheard someone say, “Why should the new person have it any easier when I had it so tough?” We need to shake off such notions and encourage professional kindness and empathy through mentorship. We should always strive to make the industry better by making our individual workplaces better. Only through a collaborative spirit can we reinforce the idea that success is not a finite resource.

We need to create workplace cultures that celebrate the idea of ‘taking one with you’: a culture that celebrates collaboration and lifting others up, regardless of sexuality, gender, work experience, or background. This mindset shift is crucial to the future of diversity in the water industry. When we actively seek opportunities to support others, we foster an environment where achievement is celebrated collectively, rather than isolating individuals. If we embrace this shift, we can create work environments we all feel good about being in.

Looking around the room right now, or glancing through your emails and messages; how can you ‘take one with you’ today?

Megan Shortridge is an active member of Ohio Section AWWA’s Young Professionals and Diversity and Inclusion Committees, and on the Diversity in Water Speaker Series organizing team. She co-founded the Diversity in Water Speaker Series to help us all ‘take one with you.’

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2023 JOINT CONFERENCE

O

ver 1,900 water and wastewater professionals from around Ohio and the Great Lakes region attended the 2023 One Water Conference in Columbus this past August. Conference attendees participated in over 80 educational opportunities, six networking events, and two regulatory updates. Preconference events included a new community outreach at the Hoover Dam in Westerville, as well as the annual Golf Outing. This year’s Women in Water Networking Event featured a panel that discussed ways to help more women find a career in the water industry and attracted over 100 diverse conference participants. Planning has already started for 2024: we hope to see you next year at the Kalahari Resort in Sandusky, OH, August 5–8.

OPERATOR COMPETITIONS 2023 The Operator Competitions at the One Water show in Columbus were very exciting this year. The competition for Pipe Tapping, Hydrant Hysteria, AWWA Meter Challenge, and Top Ops was strong.

A very special thank you to Chris Briggs, Patrick Crumley, Jimmy Roberts, Daniel McClain, and Marvin Banks from Columbus Water, along with Shawn Justus of Cleveland Water, Lenny Solomon of Clow Valve, and Zach Walker of Kennedy Valve for their help in coordinating the competitions. Without their willingness to go above and beyond, these events would not have been possible.

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PIPE TAPPING This year we had four men’s teams competing: Cincinnati, Cleveland, Columbus, and Lima. The Columbus team, consisting of Coach Patrick Crumley, Cranker Daniel McClain, Feeder Chris Briggs and Copper Jimmy Roberts, defended their 2022 title, but not without close competition and a little bit of controversy. During Cleveland’s first tap, the water to the convention center was shut off due to a leak. Their raw time of 2:32.10 became 2:50.10 after assessed penalties and they had a compelling argument that the lack of water impacted their run.

The judges conferred and offered Cleveland the opportunity to re-tap but due to the physical demands of tapping pipe, they opted to conserve their energy. The Columbus team snapped their tapping bit during their first run so it all came down to their second and final run where they posted a (winning) time of 2:13.12. Lima and Cincinnati put forth strong teams but had just enough hiccups to have them setting their

sights on next year. Shout-out to Cliff Shrive for being the MC. Full Results: Columbus – Daniel McClain, Chris Briggs, Jimmy Roberts, coach Patrick Crumley – 2:13.12 Cleveland – Ryan Powers, George Black, Colin Powers, coach Mark Shepherd – 2:50.10 Cincinnati – Milton Davis, Ron Payne, Shawntez Scott, coach Tony Jones – 3:58.43 Lima – Brad Hutchinson, Derek Lingenfelter, Michael Coffey, coach Larry Huber – 4:06.81 A special thanks to our sponsors A. Y. McDonald Mfg. Co. American Ductile Iron Pipe City of Columbus Core & Main Kennedy Hydrants EBAA Iron Ferguson Mueller Co. Riehl Systems

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AWWA METER CHALLENGE As we have done in the past, District Competitions for the AWWA Meter Challenge (formerly Meter Madness) took place at the Southern Ohio Utilities EXPO in Wilmington, and the Northern Ohio Water & Waste Water EXPO in Wooster. From those competitions, we get the four District winners who take on the reigning Champion at our Conference Competitions. The reigning state champ, Paul Tucker of Lima Water, took on NW District champ Chuck Collins of Lima, NE champ Dave Marinella of Cleveland Water, SW champ Ray Smith of Fairborn, and SE champ Troy Snider of Columbus.

The competition features two rounds, with assembled meters being tested for leaks, loose bolts, etc. Round 1, Dave Marinella posted a raw time of 34.59 but was assessed 10 seconds worth of penalties; his resulting 44.59 time only narrowly edged out Chuck Collins’ clean 45.29 run. Round 2 saw returning champ Paul Tucker’s raw time of 39.86 increase to 57.86 due to penalties and thus, Dave survived formidable challengers to claim the title.

A special thanks this year to Badger Meters for sponsoring the Meter Challenge and providing all the practice and competition meters. Jeff Cunningham, of M.E. Simpson Co., helped coordinate the competition and test the meters.

Full Results: Dave Marinella – Cleveland – 44.59 Chuck Collins – Lima – 45.29 Ray Smith – Fairborn – 51.31 Paul Tucker – Lima – 57.86 Troy Snider – Columbus – 59.27

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HYDRANT HYSTERIA Once again, Hydrant Hysteria lived up to its name. Teams from Columbus Water, Cincinnati Waterworks, Lima, and Montgomery County all brought their A games.

Columbus Water’s team of Mark Evans and Deon Brown, coached by Charles Moore, beat Lima’s Sam Bodine and Alex McPheron in the finals with a winning time of 1:21.00.

Full Results: Columbus – Deon Brown, Mark Evans, coach Charles Moore – 1:21.00 Lima – Sam Bodine, Chris Staup, coach Larry Huber – 1:33.37 Cincinnati – Travis Stockstill, Adrian Cook, coach Tremaine Willis – 1:46.37 Montgomery Co – Brett Shepard, Alex Simpson, coach Brandon Izor – 1:53.25 A special thanks to Zach Walker of Kennedy Valve who provided the hydrants for practice and organized and ran the competition.

TOP OPS With Tom Loren of Cleveland Water retiring, Shawn Justus of Cleveland Water and Marvin Banks of Columbus Water did an amazing job stepping up to fill his shoes. The event was another exciting competition with the

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SE District team of Shawn Haynes, Ronald Lambert, and Victoria Vara of Columbus Water taking top honors.

Richard Reddinger, Kevji Janku, and Kenneth Walker of Cleveland Water, along with Lima’s team of Tony Wright,

Jason Michel, and Braxton Pruden, did a great job and made Columbus earn their victory. We also want to thank Tim Wolfe for doing a magnificent job as MC of this event.

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THANK YOU SPONSORS!

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2023 Ohio AWWA Award Recipients George Warren Fuller Award

John J. Sadzewicz Award

Danella Pettenski, MS Consultants

Tom Speth, USEPA This award commemorates the continuation of John J. Sadzewicz’s outstanding legacy of contributions to safe public health practices, for encouraging the use of proven new technologies, and promoting sound operational approaches in meeting regulatory requirements and ensuring safe, potable drinking water for the citizens of Ohio.

In recognition of a lifetime of service to the water works profession, AWWA created the George Warren Fuller Award in 1937. This illustrious award is presented to a member for distinguished service to the water supply field, and in commemoration of sound engineering skill, brilliant diplomatic talent and constructive leadership, which characterized the life of George Warren Fuller.

Section Chair Award Daryl Bowling, USG Water This award is given by the Ohio Section Chair annually to recognize a Section member who has made an outstanding contribution to a particular initiative or project during the Chair’s tenure. This is an important opportunity to recognize members who put their time and talent into the Association and Section, making it more valuable to all members.

Volunteer of the Year Award Chris Briggs, City of Columbus To recognize and honor an individual Ohio AWWA member who has advanced the mission of the Ohio AWWA through their volunteer time and efforts, and has been a support to Section staff. The VOY Award is intended for volunteers that have gone above and beyond for a single task, and over a short period of time (6–18 months).

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Operator Meritorious: Water Treatment Service Sam F. Jacob, City of Elyria This year’s award is given in recognition of his commitment to optimization and improvements along the path to better water quality, which have made a difference to the customers of Northeast Ohio.

Operator Meritorious: Water Distribution Service Annette Mollet, City of Canton This year’s award is given in recognition of the exceptional technical ability and interpersonal skills necessary to create and implement the Canton Water Department’s Geographic Information System.

This body of work is transformative.

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John Lechner Award of Excellence

Larry Valentine Membership Recruitment Award

Jack Kane, Arcadis The John Lechner Award of Excellence is an individual award of excellence which recognizes a Section Service Provider Member who has demonstrated exemplary service to the drinking water community and to AWWA’s Ohio Section’s Mission and goals.

Neuronsy Adams, City of Lorain The Larry Valentine Membership Recruitment Award is given to the top new member recruiter. This award recognizes an Ohio Section member’s effort to grow and develop the Ohio Section AWWA membership.

Tatlock Awards (Outgoing District Chairs) NW District: Chad Slagle, City of Bucyrus (not pictured) SE District: Rob Shoaf, Shoaf Consulting

Richard Melick Award for Education Jason Phillips, City of Findlay The Richard F. Melick Award may be presented to a member of the Section who has distinguished himself/herself by giving unselfishly to the field of operator training and technical education through the Ohio EPA, Operator Training Committee of Ohio, Inc., and/or the American Water Works Association. Richard F. Melick was the third Executive Director for Operator Training Committee of Ohio, Inc.

Kenneth Miller Founders’ Award Dempsey Ballou, Jacobs The Kenneth J. Miller Founders Award was established in 2001 by Water for People to honor outstanding service to this international humanitarian effort. This award recognizes those who dedicate time out of their already busy schedules to help bring an end to the global water crisis.

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SW District: Jennifer Webster, Arcadis

Technical Program Committee Awards • Best Presentation at an Annual Conference: ‘The Good, the Bad and the Ugly’ by Maggie Rodgers • Best Paper: ‘Per- and Polyfluoroalkyl Substances (PFAS)’

by Maria Schneider • Best Presentation at a Regional Conference: ‘High Pressure Water Main Safety Concerns’ by Gregg Loesch • Best Presentation at a District Conference: ‘Fast Track PFAS Treatment: Tools and Approaches for Design, Construction, Treatment Reliability’ by Todd Elliott, Scott Grieco, Hannah Painschab, and Tristen Nies • Best Paper/Presentation by an Operator: ‘Asset Management: Getting Everyone of Board through a Utility Perspective’ by Valerie Copanic • Best Paper/Presentation Benefitting a Small System: ‘Developing an Asset Management Program in Ohio’

by Jill A. Schiefer RETURN TO TABLE OF CONTENTS

Membership Tenure Awards Gold Water Drop Award – 50 Years John Applegate Marlay Price Thomas Sorg Nicholas Pizzi

Life Member Status Award James Malick John Van Harlingen Tony Deluke Steven Buchberger Dennis Weaver Richard Lieberman Tim Newland W. Peter Freeman Dan Wickard Andrew Smith Edward Robakowski

Silver Water Drop Award – 25 Years Alan Fassinger Kathleen Stephens-Bryant Matthew Reed Damon Dye Eugene Baker Allen Jones Robin Halperin Derek Leyda Michael McGlinchy Sandra Vozar Doyle Johnson Mark Mittelstaedt Doug Hunter Scott Verner Anthony Farina Jeff Rains James Bedel Wade DeSorcy Trent Hertzfeld Shane Clark Thomas Merritt Ralph Kramer Chad Lampe

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Advantages & Benefits of SpectraShield Reduces O&M Costs & Capital Expenses

As a result of the impervious nature of the SpectraShield Liner System, infiltration and ex-filtration is eliminated in structures.

Operating and maintenance expenses are reduced, plant capacity is preserved, and plant expansion requirements may be delayed or eliminated.

Very Low Life Cycle Cost

As a result of the long life and competitive installation cost, the life cycle cost for the SpectraShield Liner System is very low. In many cases the ROI is under 24 months.

Helps Protect the Environment

Groundwater entering the system is reduced, allowing more to percolate to the aquifer.

Reduced pumping requirements reduce energy use reducing the carbon footprint. SSOs (Sewer System Overflows) are reduced as infiltration is reduced.

Prevents Corrosion

The Spectrashield Liner System provides a protective barrier that prevents H2S and moisture from reaching the surface of the structure.

Rapid Trenchless Installation

The SpectraShield Liner System can be installed in a typical 7 foot deep manhole in about an hour without any excavation. The manhole may be returned to service immediately upon completion of the installation.

An average sized pump station or wet well application takes about 2 days from start to finish. The pump station or wet well may be returned to service immediately upon completion of the installation.

Flexibility

The multi-layer SpectraShield Liner System is flexible, allowing it to handle the stresses associated with structure settling, traffic loading, and freeze thaw cycles.

Long Life

The SpectraShield Liner System has a design life of 100 years and comes with a 10 year manufacturer warranty.

The first structures lined in 1993 are still in place, and in good condition.

Versatile

The SpectraShield Liner System may be used in a variety of structures, such as; manholes, lift stations, wetwells, large diameter pipes, box culverts, headworks, grit chambers, weirs, and package WWTPs.

Experience

Since 1993, in-house applicators, and trained certified licensees, have applied the SpectraShield Liner System in over 105,000 structures. Over 11 million square feet of the SpectraShield Liner System have been applied.

Cost competitive

The SpectraShield Liner System installation cost is very competitive with all other liners and coatings.

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COMPLETION OF PAINT

Our concern for the environment is more than just talk

This publication is printed on Forest Stewardship Council® (FSC®) certified paper with vegetable oil-based inks. Please do your part for the environment by reusing and recycling.

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Battling Salt in Our Water If you had to guess…

What if you were asked to guess the main contributor to salt contamination in water?

Your choices are between agriculture and urban inputs in Ohio, you would think it has to be agriculture, right?

Let’s see which is the answer.

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BACKGROUND The Hamilton to New Baltimore Groundwater Consortium consists of seven independent public and industrial water suppliers in southern Butler and northern Hamilton Counties, Ohio.

Members include: • City of Hamilton • City of Fairfield • Butler County Water and Sewer • Molson Coors Beverage Company • Greater Cincinnati Water Works • Southwest Regional Water District • Southwestern Ohio Water Company

Combined, Consortium Members produce over 61 million gallons of groundwater per day for public and industrial water needs in most of Butler County, southern portions of Preble County, and northern portions of Hamilton County Ohio. The Consortium members pump groundwater from the Great Miami Buried Valley Aquifer (GMBVA). This groundwater resource is sensitive because it is an unconfined sand and gravel aquifer. To keep this water resource safe the Consortium implements a regional Source Water Protection Program.

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Two out of seven key components to the program are: Groundwater Monitoring Groundwater is monitored twice a year by collecting water samples from groundwater monitoring wells and analyzing the samples for certain water quality characteristics. Some wells within the Consortium’s network are sampled quarterly. Water levels are measured monthly from the network of wells around the region to ensure long-term sustainability of the resource.

Quarterly sampling of the Great Miami River also takes place at several locations upgradient of the source water protection areas and within the source water protection areas.

This is carried out by one of the founding members of the Consortium, Greater Cincinnati Water Works.

Education Outreach The Consortium has an extensive outreach and education program that includes many activities, such as the Children’s Water Festival, 5K Race for Global Water, Great Miami River Clean up, in partnership with Butler Soil and Water Conservation District. In 2014, Source Water Protection educational signs were placed in Fairfield, Ohio’s Waterworks Park to educate the public on the importance of protecting groundwater throughout the region and what residents can do to help keep our water safe from pollution.

RESEARCH A recent study conducted by GCWW was performed to study the impact of salt on groundwater. Increasing sodium and chloride levels can lead to salinization. Concerns associated with groundwater salinization are human health risks, pollution of our aquatic life and environment and corrosion of underground pipes and equipment.

A potential contaminant source inventory was used to identify potential sources of salt in groundwater in the GMBVA. The general assumption was that increasing salinization in the aquifer is predominately anthropogenic.

The regional study and groundwater monitoring conducted revealed that sodium and chloride concentrations are increasing in many areas in the GMBVA. The data gathered through the Consortium monitoring well network was used in a binary mixing curve comparing the well data to an established salt source program. Based on this graph and a few others, the chloride/bromide ratios have a consistent increase associated with input from halite most likely from deicers.

A conclusion from the research is that communities should holistically balance public safety needs with water quality concerns to properly manage drinking water resources.

ACTION As a protector of source water, the Groundwater Consortium started thinking of a plan to act on the recent research. We asked, what is a way for education outreach that is long-term and actively involves the community.

Educational Signage First we started by expanding on a project already successful. The educational signage installed in Fairfield, Ohio’s Waterworks Park has been accessible to hundreds of park visitors over the past several years and has remained in great condition.

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Adding another bike path sign educating about salt application and its risks was decided as the first step but not the last.

An educational sign is a good way to provide information to the public but it is equally or more important to actively involve the public and enable them to take action.

Salt Measuring Cups The City of Greater Sudbury began issuing free plastic cups to residents as a way to educate their community on how much road salt should be used.

Each 12 oz cup has printed on the front that it can contain enough salt to cover ten sidewalk squares or 500 square feet. Using the cups, residents can measure the amount of salt used instead of overapplying.

We intend to do the same in our area.

Salt Watch Testing Kits Izaak Walton League of America has a salt watch program that provides salt watch test kits with four chloride testing strips. These strips are used to test chloride levels in waterways and the results can be submitted online to be added to a national database.

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Bringing it all together An application for the Ohio EPA OEEF Mini Grant was submitted for $5,000.

The project was presented as a two-step process beginning with the educational sign. The educational sign will be implemented first. Design of the sign will begin on November 5 and will use the research done this past year by Greater Cincinnati Water Works on the salinization of source water concerning the Great Miami Buried Valley Aquifer locally as well as other research more generally. The sign will go into detail what salinization is, what the general causes are, and how to take action to protect source water here locally.

This sign will be accessible to anyone walking, jogging or riding along the bike path in Waterworks Park. This sign will also direct people to our website for additional information on the grant and the Groundwater Consortium.

The second step is reaching out to homes in the local community informing them of the newly installed sign and offering to provide a salt cup and a chloride testing kit.

This activity will be sending educational packages to homes located

in the neighborhoods surrounding Waterworks Park. Homeowners in the residential community near Waterworks Park will be made aware via letter, of the newly placed educational sign at Waterworks Park and will ask if they are interested in receiving more information and participating in a salt watch project.

For those who say yes, they will be sent the cup to measure salt and the salt testing kit.

The grant was approved and will begin October 4 and is expected to be completed by October 4, 2024.

The success of the project will be measured by continued monitoring of salt levels in the aquifer sensitive region through sampling and the Izaak Walton League’s national database.

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Connect And Collaborate With Your Water Industry Peers

There’s nothing quite like working with others to find solutions to shared challenges. AWWA members are a community of water professionals who are dedicated to the world’s most important resource. In member value surveys, respondents state that connecting and collaborating with others in the industry is the primary reason they are a member.

Join AWWA and start connecting today!

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Diversity and Inclusion Update

One Water Conference Trish Harrison, D&I Committee Chair

I

n today’s interconnected world, the importance of diversity and inclusion cannot be overstated. These principles not only foster a more equitable society but also drive innovation and progress. OAWWA recognizes the significance of diversity and inclusion, and has taken active steps to promote these values. This was apparent at the One Water Conference held in Columbus, Ohio, August 21–24, 2023.

The One Water Conference brings together professionals, experts, and leaders in water management, with this year’s conference being the largest to date with close to 2,000 attendees. One of the most visible ways that diversity and inclusion was promoted at the conference was through the address given by the keynote speaker, Mr. Donnell Duncan P.E., S.E. This approach ensured that attendees were exposed to the diversity and inclusion approach and its level of importance to the OAWWA. Mr. Duncan, senior professional structural engineer, engineering professor, author of the new book A New Mindskin, and widely respected speaker, shared a diversity and inclusion presentation that was easy to follow and relate to. His spouse, Dr. Angel Duncan, is an author, speaker, professor and entrepreneur. She has experience in the corporate, academic and nonprofit sectors in regard to workplace culture. Mr. and Dr. Duncan were also kind enough to join D&I Committee members at the Connections Corner for a meet and greet. We had the chance to sit and discuss challenges that each of us face with diversity and inclusion in the water industry.

The One Water Conference provided plenty of opportunities to network and connect with other professionals in our industry.

This is a crucial aspect of any conference. Members of the D&I Committee were fortunate to meet many attendees at our booth.

They were able to share with others what the D&I Committee is about, and invite them to attend a meeting and get involved.

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OAWWA’s dedication to diversity and inclusion is commendable. By embracing these values, the conference not only enriches its own content and discussions, but also contributes to a more equitable and innovative water management sector. In a world facing complex water challenges, this commitment to diversity and inclusion is a crucial step toward finding comprehensive and sustainable solutions.

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Careers Start Here: YP Committee Update One Water Conference

This August, OAWWA and OWEA held the One Water joint conference in Columbus, Ohio. The days were filled with technical sessions relating to all aspects of the water and wastewater industry. Opportunities for networking were provided throughout the conference, with happy-hours and meet-andgreets-hosted after the technical sessions. The YP committee hosted the ‘Connections Corner’ on Tuesday, where members were able to meet and connect with each other, and speak with other young professionals interested in joining the committee.

On the second day, The YP committee held a business meeting where the role of committee chair was transferred to Dane Elliott by outgoing chair Sarah Hayes. Our YP Committee would like to thank Sarah for all she has done for the committee over her seven years of service. We look forward to Dane’s enthusiastic attitude and leadership.

Fresh Ideas

The OAWWA YP Committee organizes the state’s Fresh Ideas Competition each year at the One Water conference.

This competition provides students and recent graduates an opportunity to present their drinking water-related research.

Students present either a poster or technical oral presentation, competing for cash prizes and a sponsored trip to ACE, the national AWWA conference, to compete as Ohio’s delegate.

The winners are as follows: Technical Talks: 1. Yuzhou Huang: ‘Identifying the adsorption of specific natural organic matter components to powdered activated carbon’ 2. Daniel Ma: ‘Optimizing microorganism inactivation, repair inhibition, and electrical efficiency of multi-wavelength and alternative-energy UV’ 3. Mark Tischer: ‘Ultrasound as a source water reservoir management strategy to control cyanobacteria blooms’

YP Connection Corner at One Water Conference. Photo by Megan Shortridge, SW District Co YP Representative

From Josh Fuchs, OAWWA Fresh Ideas Representative

Yuzhou Huang, Fresh Ideas Presentation Winner

“One Water 2023 was a great time! It was wonderful to connect with others across the industry. My favorite session this year was the Women’s Networking Event. The organizers did an excellent job of putting together a panel to discuss how we can better mentor women in the water industry.”

Posters: 1. Haleigh Fernandez: ‘Sonochemical degradation of perand polyfluoroalkyl substances (PFAS) in ion-exchange and membrane filtration waste concentrates’ 2. Elyse Bonner: ‘Evaluating ultrasound and hydrogen peroxide (H2O2) induced Haleigh Fernandez, suppression of Fresh Ideas Poster Winner cyanobacteria’ 3. Gabrielle Martin: ‘Applying reactive transport models to simulate contaminant leaching from coal combustion byproducts used in abandoned mine reclamation’

Developing comprehensive water solutions across Ohio

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District Events

SE DISTRICT American Public Works Association Joint Event, Tour at Dublin Rd. WTP – June 22, 2023 On June 22, the OAWWA YP Committee held a joint event with the American Public Works Association (APWA).

The group toured Columbus’s Dublin Road Water Plant and held a happy hour after the tour. This was an exciting opportunity to tour of one Columbus’s three (soon to be four) water plants. Additionally, the OAWWA YP’s were able to meet and connect with members of the APWA while learning more about the plant. Thank you to the City of Columbus for giving our YP’s the opportunity to tour the plant!

From Nina Duerk, APWA Central Ohio Branch President “It was great getting to know the OAWWA YP group at the Dublin Road WTP Tour. The event provided an opportunity for our groups to network and meet other local working professionals we may not typically cross paths with inside our respective organizations. As the American Public Works Association does not have a dedicated YP branch, this unique opportunity provided a space for both young and more seasoned professionals to connect. The after-hours social event also provided an additional venue for the groups to discuss the tour and learn more about the organizations.”

Student Memberships

Are you a college student interested in learning more about the water industry or do you know one? OAWWA has generously sponsored a limited number of student memberships FREE to students who reach out to Megan Patterson at mpatterson@brwncald.com. Signing up is easy!

What are you waiting for?

YP Committee Openings

Are you interested in becoming a part of the OAWWA YP Committee? YP members are encouraged to join monthly YP Committee calls before committing to a role. Please email dane.elliott@stantec.com to be added to the meeting invitation and get involved. Current open committee positions include: • NW District YP Co-Representative • SW District YP Co-Representative • OAWWA State Science Day Liaison • University Liaison • YP/Membership Committee Liaison RETURN TO TABLE OF CONTENTS

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Careers Start Here: YP Committee Update

YP MEMBER SPOTLIGHT The spotlight has landed on Katie Fisher, our OAWWA SE District YP Co-Representative, for this newsletter’s YP member feature.

Katie, hello and welcome! Can you provide us with some background on where you went to school and how you got started in the industry?

I completed both my undergraduate and master’s degrees at Purdue University, where I pursued a Bachelor of Science in Environmental Engineering, and later a Master of Science in the same field.

I started my career at a consulting firm based in Indianapolis, where I had the opportunity to work on a variety of wastewater treatment and collection projects, and I passed the Fundamentals of Engineering to become an Engineer-in-Training.

Three years ago, I joined MS Consultants, initially in the Pittsburgh office. I have had the privilege to work on challenging and diverse drinking water and wastewater projects. Last fall, I relocated to Columbus and completed the requirements to become a licensed Professional Engineer.

You recently attended the One Water Conference.

What is your biggest takeaway?

My biggest takeaway would be a reinforced appreciation for the pivotal role that water plays in every community.

The conference highlighted how essential water is for the sustainable growth and prosperity of our communities.

It served as a powerful reminder that water touches every aspect of our lives, from public health and sanitation to economic development and environmental preservation.

What is your favorite part of being in the water and wastewater industry?

I find it incredibly fulfilling to be involved in projects that address critical issues such as water quality, water supply, and wastewater treatment. Whether it is designing RETURN TO TABLE OF CONTENTS

innovative water treatment systems, improving infrastructure, or optimizing processes, I am constantly motivated by the opportunity to make a positive difference in the world.

Additionally, the water/wastewater industry is dynamic and ever evolving, presenting constant challenges and opportunities for innovation. It requires staying up to date with the latest technologies, regulations, and sustainability practices. This continuous learning aspect keeps me engaged and excited about my work, as I am constantly challenged to find optimal solutions to complex problems.

What do you like about OAWWA? One of the primary reasons I like OAWWA is the wealth of professional development opportunities it provides. The organization regularly hosts workshops, seminars, and conferences that cover a wide range of topics related to water and wastewater management. These events not only help me stay updated with the latest industry trends but also offer a platform for networking and knowledge sharing with fellow professionals.

What are some of your favorite things to do in your free time outside of work and OAWWA? One of my primary passions is powerlifting and general strength training. I love to read and cook. I figure if you can pass college chemistry, you can cook or learn to cook almost anything. Currently, a substantial part of my spare time is dedicated to packing and moving into my first house. Wish me luck that I only break a dish or two.

Thank you, Katie, for speaking to us about your experience in the industry and in OAWWA. And most importantly, thank you for your service to the YP committee and water industry!

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For The Best Advice on Earth (R)

Celebrating 40 Years

Contact: 614.256.1771 (Mark) mdbennett@bennettandwilliams.com

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KENT PUBLIC WATER SYSTEM CELEBRATES ITS

100th Anniversary

100th Anniversary

by John Ellison, Water Plant Manager at Kent Water Treatment Plant

Kent Public Water System

he Kent Public Water System has a long history, dating back to 1880, when Kent’s first water system was completed. This water system was mediocre at best by today’s standards: it consisted of a deep well with a hand pump and a water trough. It was located at the intersection of Main Street and Water Street in downtown Kent.

In 1881, Mayor James Woodard hired an engineer to estimate the cost of a new water system. This estimate came to be $53,523. F.M. Loweree, who was representing a group of eastern capitalists, signed a contract with Kent officials in 1886 to build this water system. The water rates were set to be five cents for each 100 gallons delivered to homes, and the installation of 60 fire hydrants priced at 50 dollars each.

The water system was completed on May 13, 1887, and it utilized Plum Creek as its source of drinking water. The original water plant still exists today on the southwest side of Kent, on Mogadore Road. It has since been converted into a daycare. Upon completion of the water system, the contract was transferred to Kent Water Company, owned by the Holly Manufacturing Company in Lockport, New York.

In 1889, the Circuit Court ruled the Kent Water Company was permitted to flow 1.35 MGD from Plum Creek. Six shallow wells were drilled west of the water plant that same year. In 1897, six more wells were drilled in anticipation that Plum Creek would likely be deemed an unsafe source of drinking water. The City of Kent was right; the State Health Department ruled in 1898 to disconnect the suction line from Plum Creek.

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City of Kent The Kent Water Company was purchased by the Northern Traction and Light Company in 1917, and then on February 27, 1923, the City of Kent purchased the water system. The purchase consisted of the original Water Plant, 101,209 feet of water lines, 113 hydrants, 1,746 in service water meters, numerous valves, and equipment that involved the production and distribution of water for the City of Kent.

Bonds were sold to fund the purchase to the tune of $135,000.

Mayor Roy Smith and Kent City Council decided to upgrade the water plant in 1930 to produce softened water, a bond issue was set for $35,000 and was passed by council in March.

By November of that year, softened water pumped into Kent.

By the 1960s, water demand in Kent was a huge concern.

The wells at the old water plant could barely keep up with demand. An interconnection with Akron was made, and in 1968, a new well was drilled on the east side of town near Breakneck Creek, the location of the current wellfield. A fire in downtown Kent occurred in 1972, and Kent City Council

was convinced that the City of Kent desperately needed a new source of drinking water, and a new water plant. Four additional wells were drilled, and a new water plant located on Hodgeman Lane was constructed under Mayor Joseph Sorboro. The new Kent Water Treatment Plant began operation on January 13, 1976.

This year, On May 9, 2023, the celebration consisted of a history lesson on the Kent public water system from the former Water Plant Manager Steve Hardesty, and a proclamation from Mayor Jerry Fiala of Kent. The celebration also included plant tours by the Water Plant Manager, John Ellison. Ohio EPA gave presentations on source water protection. The Kent Central Maintenance Division explained proper hydrant flushing procedures and watermain repairs, and an explanation on budgeting for the Kent water system came from the Kent Engineering Department.

To the next one hundred years, Kent!

Water & Wastewater Treatment Equipment Sales Jim Schaffer NW Ohio & Columbus Area Phone: 419-843-2170 jimschaffer@bergren.com

John Fitch, Jr. NE Ohio Phone: 440-865-6257 johnfitch@bergren.com

Ed Stanish Instrumentation & Controls Phone: 419-206-2458 edstanish@bergren.com

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2023 Scholarship Recipients FIRST PLACE

SECOND PLACE

THIRD PLACE

Kate Shaughnessy University of Cincinnati

Aiden Pulsifer The Ohio State University

Evelyn Phillips The Ohio State University

Tolulope Odunola University of Cincinnati

Garima Mandavya University of Cincinnati

Samuel Weaver University of Dayton

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Need funding for your water projects?

The Infrastructure Investment and Jobs Act launched a new era of significant investment in rehabilitating and updating US water infrastructure. AWWA experts have compiled a new guide to help water utilities access this funding.

AWWA will help you follow the process as Infrastructure Act funding passes to states, so it can be distributed at the local level.

Learn more at awwa.org/InfrastructureAct

Dedicated to the World’s Most Important Resource®

Nanobubble Ozone Technology: A Potential New Treatment for Harmful Algal Blooms

BY HALEY KUHN

H

armful algal blooms (HABs) are a critical water quality issue affecting many waterways in Ohio and in the United States. Cyanobacteria, also known as blue-green algae, are toxin-producing microorganisms that grow rapidly to produce HABs. HABs have recently become more prevalent worldwide because of increasing nutrient levels from anthropogenic practices. HABs can have serious, and sometimes irreversible, effects on wildlife and human health (Figure 1).

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In Ohio, microcystins are the most commonly detected cyanotoxin in source and finished drinking water.

Currently, copper-based algaecides are one of the most widely used treatment for HABs. However, the use of copper-based algaecides has several downsides, including toxicity to non-target organisms, environmental persistence, and lower effectiveness during cooler months. Thus, we are investigating an alternative method

Figure 1. Advisory sign for harmful algal blooms (HABs) at Grand Lake St. Mary’s, summer 2022.

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to HAB treatment: nanobubble ozone technology (NBOT) (Figure 2).

Ozone (O3) can be used as a powerful treatment method that reacts with HABs through direct oxidation by ozone molecules or through the generation of highly reactive hydroxyl radicals formed during ozone decomposition1. Unlike copper-based algaecides, ozone does not persist in water and decomposes quickly.

Nanobubble technology is a newer innovation that has gained popularity in recent years because of potential applications in several industries2.

Nanobubbles are microscopic bubbles with diameters typically less than 200 nm (Figure 3). Their small size

provides greater specific surface area compared to normal bubbles and the ability to provide higher mass transfer.

Additionally, a lower buoyant force prevents nanobubbles from rising to the surface, increasing retention time in water and contact time with contaminants. By delivering ozone through nanobubbles, the efficacy of ozone treatment may be improved.

In this multifaceted project funded by the United States Army Corps of Engineers (USACE), the effectiveness of NBOT for treatment of HABs is being investigated through trials in lakes, streams, and mesocosms as well as bench-scale experiments. The objectives of this project include comparing

NBOT treatment to traditionally used algaecides, investigating the effects on HAB toxin release and degradation, analyzing potential toxicity to non-target organisms, and determining the effects on nutrients and water quality.

Field Trial A field trial was conducted at Sunset Beach (also known as Dog Tale Lake) in Grand Lake St. Marys State Park in the summer of 2022 (Figure 4). Grand Lake St. Marys is one of the most HAB impacted lakes in the United States.

Sunset Beach is an eight-acre site that is partially disconnected from Grand Lake St. Marys by a rock wall enclosure and a 60-foot curtain at the opening

Burst at surface Rise Rapidly

Figure 2. Diagram of the nanobubble ozone technology (NBOT) unit. An oxygen concentrator feeds into an ozone generator(s) which injects ozone into water pumped from the source lake or stream via a venturi system. Ozone treated water flows into a contact tank equipped with an ozone destruct mechanism to eliminate any released gaseous phase ozone. Water is pumped out of the system under constant pressure through a patented nozzle that further creates nanobubbles.

Collapse

Grow

Shrink

Macrobubble 100

Microbubble

Brownian Motion

Nanobubble

10 1.0 Bubble Diameter(µm)

Figure 3. Classification and behavior of bubbles based on bubble size.

Figure 4. Nanobubble ozone technology (NBOT) unit at Grand Lake St. Marys in the summer of 2022 (left). Water near NBOT treatment site at the start of the 2022 field trial (right).

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to the rest of the lake. The curtain was installed in an attempt to improve water quality at the beach through various lake management practices. In prior years, aeration, alum treatments, and algaecides were ineffective at reducing the frequency and intensity of HAB events at the beach.

During the NBOT trial, four units were installed inside the enclosed location: two on the eastern side of the beach and two on the western side of the beach (Figure 5). To measure water quality, discrete samples were collected at locations inside and outside of the protected beach area, and at the inlet and outlet of the NBOT units.

Mesocosm Trial Experiments using controlled outdoor tanks (mesocosms) were conducted at Ohio State University’s Stone Laboratory.

The facility consists of 15 tanks with direct water feed from Lake Erie, with each containing approximately 2,000 L of water. The mesocosms were treated as follows: three tanks received no treatment (control tanks), three tanks received copper algaecide, three tanks received peroxide algaecide, 3 tanks received a “low” dose of NBOT treatment (applied dose of 0.9 mg O3/L), and three tanks received a ‘high’ dose of NBOT treatment (applied dose of 4.6 mg O3/L).

NBOT-NE

NBOT-NW

NBOT-SE

NBOT-SW

Legend NBOT Inlet NBOT Discharge

Extended

ll

Rock Wa

ODNR curtain barrier

Extended Rock Wall

Figure 5. Locations of NBOT unit deployment at the West Beach location within Grand Lake Saint Marys state park in the summer of 2022.

Figure 6. Location of the aqueduct overflow to the St. Mary’s River

Figure 7. Holly Stanely and Autumn Taylor collecting samples for nutrient analysis (left). Josh Fuchs and Haley Kuhn dosing a mesocosm with NBOT treatment (right).

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Stream Trial In autumn of 2022, an NBOT treatment trial was performed at the Canal Feeder outlet from Grand Lake St. Marys to the St. Marys River (Figure 8). Upstream of the canal, the St. Marys River, is in full attainment of water quality criteria, but downstream of the canal input is considered impaired. Two NBOT units were placed in the Canal Feeder before it overflows into the river, with a treated effluent nozzle placed on each side of the canal to maximize treatment within the canal. Samples were collected from the canal and from the river, both upstream and downstream of the Canal Feeder outlet, to measure the ability of NBOT to treat HABs in flowing water.

Bench-Scale Experiments A smaller 2.5 HP NBOT unit provided

by Green Water Solutions was used to complete bench scale testing (Figure 9).

This unit was modified to have a lower flow rate (~3 gpm) than units deployed in the field (~36 gpm) to allow for more feasible sample collection. The gas generator can be set to produce oxygen gas through the nanobubble pump as well as ozone, allowing for comparison

of the effects of nanobubbles with and without ozone gas.

Preliminary Results Results found that NBOT treatment: • Has lower impact on zooplankton compared to other HAB treatments.

NBOT-treated mesocosms had the highest number of zooplankton after treatment, nearly double those of the copper and peroxide treated mesocosms. These results indicate that NBOT treatment has lower impact on non-target organisms, a major advantage over algaecides.

• Decreased microcystin concentrations. Following treatment, copper treated mesocosms had the highest concentrations of total and aqueous microcystins, while mesocosms treated with the high ozone dose had the lowest total and aqueous microcystin concentrations.

The mesocosms treated with peroxide and the mesocosms treated with a low NBOT dose were at the same concentration as the untreated sample.

• Decreased chlorophyll-a (chl-a) measurements. Chlorophyll-a measurements are used as a proxy

Figure 8. Nanobubble Ozone Technology (NBOT) units placed immediately before the location of aqueduct overflow with inlet/outlet nozzles on each side of the canal (left). View of aqueduct overflow following treatment of water by NBOT units (right).

for concentration of algal biomass.

Lower chl-a values indicate reduced levels of cyanobacteria and higher water quality because of treatment.

• Decreased Specific Ultraviolet Absorbances (SUVA254) values.

SUVA254 measures the aromaticity of organic matter present. Ozone oxidizes organic matter, breaking it down into simpler, less UV-absorbing compounds.

Sheering can also cause the physical breakdown of organic matter, decreasing aromaticity. Lower SUVA254 values indicate that treatment of organic matter occurred.

Although these preliminary results show potential for NBOT to be used as an effective treatment for HABs, it is unclear how much NBOT treatment is needed to become a viable alternative to copperbased algaecides. Continued research being conducted aims to increase understanding of how NBOT technology works as a HAB treatment, the effects on water quality, and the ozone dose necessary for effective treatment.

References 1. Loganathan, Kavithaa. (2016). Ozonebased advanced oxidation processes for the removal of harmful algal bloom (HAB) toxins: A review. DESALINATION AND WATER TREATMENT. 59. 65-71.

2. Agarwal A, Ng WJ, Liu Y. Principle and applications of microbubble and nanobubble technology for water treatment. Chemosphere. 2011 Aug. 84(9):1175-80.

Project Team Raymond, Heather1; Weavers, Linda3; Gabor, Rachel4; Laughinghouse, Dail2; Chaffin, Justin1; Braig, Eugene1; Berthold, David2; Fagan, William3; Kuhn, Haley3, Lefler, Forrest2; Stanley, Holly4; Taylor, Autumn1; Labus, Lillian4; Fuchs, Josh3 1

The Ohio State University, College of Food, Agricultural, and Environmental Sciences

2

University of Florida, Institute of Food and Agricultural Sciences

Figure 9. Complete set up for laboratory experiments including the oxygen generator, ozone generator, inlet tank, and outlet tank (left). 2.5 HP pump, ozone reaction tank, and ozone destruct unit (right).

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3

The Ohio State University, College of Engineering

4

The Ohio State University, School of Environment and Natural Resources

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Baker and Associates Ltd.

33

614-361-3673

www.hlbaker.com

Bennett & Williams Environmental Consultants, Inc.

36

614-882-9122

www.bennettandwilliams.com

BissNuss, Inc.

9

330-533-5531

www.bissnussinc.com

Black & Veatch

34

614-473-0921

www.bv.com

Burgess & Niple, Inc.

23

800-282-1761

www.burgessniple.com

Commerce Controls, Inc.

6

248-476-1442

www.commercecontrols.com/index.html

EBAA Iron Sales, Inc.

7

229-273-7644

www.ebaa.com

Fishbeck

34

800-456-3824

www.fishbeck.com

Giant Maintenance & Restoration, Inc.

26

847-566-9188

mark@giant2u.com

Gorman-Rupp Company

47

419-755-1011

www.gormanrupp.com/en/gorman-rupp

GPD Group

9

800-955-4731

www.gpdgroup.com

Gripp, Inc.

12

317-896-3700

www.grippinc.com

Hawkins Water Treatment Group

14

877-839-3777

www.hawkinsinc.com

Hazen and Sawyer

26

513-469-2750

www.hazenandsawyer.com

Integrity Municipal Systems LLC

8

858-486-1620

www.integritymunicipalsystems.com

Jacobs

36

614-888-3100

www.jacobs.com

Jones & Henry Engineers, Ltd.

34

419-473-9611

www.jheng.com

M.E. Simpson Co., Inc.

3

800-255-1521

www.mesimpson.com

MS Consultants

32

614-898-7100

www.msconsultants.com

Pittsburg Tank

36

270-826-9000

www.pttg.com

Pro-Tech Systems Group

2

330-773-9828

www.pteinc.com

R.W. Sidley, Inc.

34

800-536-9343

www.rwsidley.com

Smith Comeskey Ground Water Science

31

419-235-4955

www.groundwaterscience.com

SpectraShield Liner Systems

24-25

303-378-1101

www.spectrashield.com

Stantec

20

614-486-4383

www.stantec.com

Sullivan Environmental Technologies

20

859-426-5178

www.sullivanenvtec.com

The Bergren Associates

38

419-843-2170

www.bergren.com

The Henry P. Thompson Company

48

513-248-3200

www.hpthompson.com

Ulliman Schutte

14

937-910-9900

www.ullimanschutte.com

To reach water professionals through the Waterfront and their targeted readership, contact Jeff to discuss your company’s promotional plans.

Jeff Kutny, Marketing Manager Email: jeff@kelman.ca • Toll Free: 866-985-9789

46

WATERFRONT

FALL/WINTER 2023

Published for OAWWA by:

RETURN TO TABLE OF CONTENTS

GORMAN-RUPP HAS YOUR BACK.

TThe NEW EchoStorm aeration system maintains sufficient dissolved oxygen in wastewater, minimizing odor and corrosion

Whether it’s getting sewage to the plant or treating it at the plant, Gorman-Rupp has you covered.

Our complete line of ReliaSource® lift stations include industry-leading pumps, enclosures, controls and valves – everything custom-designed from the ground up and delivered to the job site ready to install. We also manufacture pumps ideal for handling influent, sludge, effluent and a variety of other plant process applications. If odor control is a concern, pumps and stations can be equipped with Gorman-Rupp’s NEW EchoStormTM venturi aeration system, which adds dissolved oxygen into the liquid being pumped. For all of your municipal wastewater treatment needs, you can count on Gorman-Rupp – guaranteed.

For more information, call Gorman-Rupp at 419-755-1011 or visit GRpumps.com to find a distributor near you.

DISTRIBUTED BY: For Northern & Central Ohio Contact:

24551 DETROIT RD. I WESTLAKE, OH 44145 216.228.7900 I WWW.CRAUNLIEBING.COM

597 © 2023 The Gorman-Rupp Company.

For Southern Ohio Contact:

8638 COTTER ST. I LEWIS CENTER, OH 43035 440.838.1221 I WWW.PELTONENV.COM

E IN OHIO

OV ER 60

ER IEN C

Trusted Systems.

Resourceful Thinking.

EX F Y E AR S O

P

Tonka Water, a Kurita brand, has been dedicated to meeting the potable water needs of public water systems across North America since 1956. As part of Kurita America, Tonka Water remains a trusted brand in municipal water treatment with over 2,700 installations. We are dedicated to understanding your specific needs to customize designs that deliver the optimal solution for each application.

Protect Your Investment with Our Aftermarket Expertise Our aftermarket services team is a trusted resource to help ensure your system operates at peak performance. We offer the products and services you need to maintain your system and extend equipment life to get the most out of your investment. This includes hard-to-find parts, troubleshooting assistance, ancillary equipment, and refurbishment packages. Our experienced field service professionals offer on-site support based on your current need or as part of an extended service contract.

Contact our aftermarket services team for the support you need. Our water treatment experts are ready to help. represented by

a Kurita brand

Kurita America • www.kuritaamerica.com • 800-530-1887 The Henry P. Thompson Company • www.hpthompson.com • 513-248-3200