A. Y. McDonald Manufacturing Company Adams County Regional Water AEGIS Insurance Services AIM Env. & Water Services AKE Laboratory, Inc. Akron University Akron Water Supply Allen Cnty Sanitary Eng. Allen County Sanitary Engineers Allmax Professional Solutions Allmax Software Solutions Alpine Dairy, LLC. Aqua Ohio Water Co. Aqua Serv Aqua Technology Group, LLC AquaBlue, Inc. Aquarion Operating Services ARCADIS MP Arizona Chemical Ashtabula County San. Eng. Astbury Water Tech Athens County Atwood Regional Water & Sewer Dist. Auburn Skilled Nursing Avon Lake Municipal Utilities B & S Operation Inc. Bailey Lakes Village Bainbridge Township Baker & Associates BakerCorp Balmac, Inc. BBS Corporation/CH2M Hill Company Bergren Associates Biosolutions BissNuss, Inc. Black & Veatch Blue Earth Labs, LLC. Bonded Chemicals, Inc. Bowling Green WWTP BP-Husky Refining LLC Buckeye Environmental Buckeye Water District Burgess & Niple Burnham and Flowers Insurance Group Burr Oak Regional Water District Burton Village Butler County Environmental Butler County Water & Sewer Dept. Byesville Utility Dept Calgon Carbon Camp, Dresser, & McKee Campbell Soup Supply Co. Canton Water Dept Capitol Insights Carroll Water & Sewer Dist. Cav-Energy, LLC. CCI CDM Celina WTP Central State University Centrisys Centrifuge Systems Corp CEU Plan CH2M Hill, Inc. Chemtrac, Inc. Chester Engineers Chillicothe Correctional Cincinnati MSD Cincinnati Water Works City of Lebanon City of Akron City of Alliance City of Amherst City of Ashland City of Athens City of Avon Utilities Dept. City of Barberton City of Bedford City of Bellevue City of Belpre City of Berea City of Bowling Green City of Brookville City of Bucyrus City of Cambridge City of Campbell City of Canal Fulton City of Canal Winchester City of Celina WTP City of Chillicothe City of Cincinnati MSD
City of Circleville City of Cleveland City of Clyde City of Columbus City of Columbus Div of Water City of Columbus Divis. Of P & W City of Columbus DWP City of Columbus WWTP City of Conneaut City of Coshocton City of Cuyahoga Falls City of Dayton City of Defiance City of Delaware City of Delphos City of Dover City of East Liverpool City of Elyria City of Fairborn City of Fairfield City of Findlay City of Fostoria City of Franklin City of Fremont City of Galion City of Gallipolis City of Geneva City of Geneva WWTP City of Girard City of Greenville City of Hamilton City of Harrison City Of Heath City of Heath City of Hillsboro City of Ironton City of Jackson City of Kent City of Lakewood City of Lancaster City of Lebanon City of Lima City of Logan City of London City of Lorain City of Louisville City of Mansfield City of Marietta City of Marion City of Marysville City of Mason City of Miamisburg City of Middletown City of Milford City of Mt. Vernon City of Nelsonville City of New Philadelphia City of Newark City of North Canton City of North Olmsted City of North Royalton City of Norwalk City of Oakwood City of Oberlin City of Oregon City of Orrville City of Oxford City of Painesville City of Pataskala City of Perrysburg City of Pickerington City of Piqua City of Port Clinton City of Portsmouth City of Ravenna City of Rittman City of Salem City of Sandusky City of Shelby City of Sidney City of Solon City of Springboro/Veolia Water City of Springfield City of St. Clairsville City of St. Marys City of St. Mary's City of Tiffin City of Toledo City of Toronto City of Troy
City of Upper Sandusky WTP City of Van Wert City of Wapakoneta City of Warren City of Washington City of Washington C.H. City of Washington WWTP City of Wauseon City of Waverly City of Wellston City of West Carrollton City of Westerville City of Willard City of Wooster City of Wyoming City of Xenia City of Youngstown City of Zanesville Clark County Utilities Clermont County Clermont County Water Clermont County Water Resources Cleveland Water Dept. CMAGE/CWA Local 4502 Coca-Cola Collector Wells Int. Columbus Public Utilities Country Meadows Condo's CSUS CT Consultants, Inc. Cuyahoga County Sanitary Engineers D.M. Anderson, Inc. Dandie Stuff Defiance WWTP Delaware County Del-Co Water Dugan & Meyers Dukes Root Control Service Earnhart Hill Reg. W&S District EarthWorks Eastern Gateway Community College Edgewood Estates/Waterfall Estates Efficiency Smart EL Robinson EMH &T, Inc. EMH&T Enviro Science, Inc. Environmental Engineering Service EP Ferris & Associates Erie County Dept. of Env. Ser. Fairfield County Utilities First Energy Corp. First Energy Nuclear Operating Co. Floyd Browne Group Fluor BP Ford Motor Co. Franklin County French Creek WWTP Froniter Homes Frost Brown Todd, LLC G. J. Berding, Inc. Gannett Fleming, Inc. GCWW GE Water & Process Technologies Geauga County Water Resources Geyser Pump Tech. Company Great Lakes Environmental Center Greater Cincinnati Water Works Greene County Sanit. Eng. GreenTree Environmental Greenville WWTP H&S Environmental H2O Technologies, LLC Hach Company/EXH Hanes Environmental, Inc. Hans Rothenbuhler & Son Hazen and Sawyer PC HDR Engineering, Inc. Heart Start Henderson GRP, INC. Henry P. Thompson Company HHBL Consultants Highland County Water Company Highland County Water Company, Inc. Hillsboro City WTP Hillsdale Water Association HK Instrument Systems Hocking Hills State Park Howard WWTP Services Hubbard WPCF
Huber Technology, Inc. Industrial Fluid Mgmt. Inc. Instrument & Chemical Services J.M. Smucker Company Jack Doheny Supplies Jackson County Water Jackson Pike WWTP Jamison Environmental Consulting John Wolfram & Associates Johnson Mobile Home Park Jones & Henry Engineers Kiawah Island Utility Kincaid Wastewater Services Knox County W&WW Dept. Lake County Lake County Dept. of Utilities Lake Erie Utilities Lakengren Water Authority Lancaster Division of Water Leading Creek Conservancy District Le-Ax Water District Licking County Water & Wastewater Logan County WPCD Longwatch Lubrication Engineers Lucas County Sanitary Eng. M Tech Company Madison County Sanit. Eng. Malcolm Pirnie, Inc. Marion CO. Sanitary Eng. Dept Maryland Biochemical Co., Inc. Medina Cnty. Sanitary Eng. Miami Cnty Sanitary Engineering Mohawk-Towahawk Utilities Mont. County Water Service Montgomery Cty Water Services Montgomery Watson Harza Mowery & Youell, Ltd. MS Consultants MSD of Greater Cincinnati Multivista Midwest, LLC. MWH MWH Americas,INC. Nalco Company Neptune Equipment Company New Mexico Rural Water Assoc. North Canton WTP Northeast Ohio Regional Sewer Dis. Northview Utilities Corp. Northwestern W & S District O.D.O.T OARDC/Ohio State University ODH, Bureau of Env. Health ODNR ODNR Buckcreek State Park ODNR-Rocky Fork State Park ODOT ODOT D-3 ODOT District 3 ODR&C Ohio American Water Co. Ohio Department of Health Ohio Dept. of Natural Resources Ohio Electric Motor Service Ohio Environmental Council Ohio EPA Ohio EPA DEFA Ohio EPA Div. of Surface Water Ohio EPA Laboratory/DES Lab. Cert. Ohio EPA, DAPC Ohio EPA, DD&GW Ohio EPA, DDAGW Ohio EPA, DDGW Ohio EPA, Div. of Surface Water Ohio EPA, Division of Surface Water Ohio EPA-Div. of Environmental Srv. Ohio EPA-DSN Ohio EPA-Twinsburg Office Ohio Paperboard Corporation Ohio Rural Water Assoc. Ohio Section AWWA Orrville Dept. of Public Utilities Ottawa County Otterbein Home Owens Corning Owner Aquarius pure water spec. Pelton Environmental Products Pickaway Correctional Instiution Pike Water, Inc. Pleasant Valley Reg. Sewer Dist.
PMC Bio Tec PMG Consulting Portage Cnty Water Res. Portage County Water Resources PPG Protective & Marine Coatings Pro2Serve Process Wastewater Technologies Pro-Tech Systems Group, Inc. Public Entity Risk Services Quasar Energy Group RA Consultants Ribway Engineering Group, Inc. Rockwell Automation Roetzel & Andress Roots Town Service Water Company Ross County Water Co. Sal Chemical SC House of Jacob Schneider Electric SCI Seepex, Inc. Shelby County Sewer District Sherwin Williams Company Siemens Water Technology Corp. Sisters of Notre Dame Smith Dairy Products, Inc. Smith Environmental Solarbee Corporation SOS Integration Southern Ohio Trench & Exc., Inc. Spectrashield Liner Systems Stantec Summit County Summit County Engineer SwageLok Tate Monroe Water Association TCCI Laboratories Inc. The Cyril-Scott Company The Ohio State University Tideflex Technologies (Red Valve) Trimble Township Wastewater Tri-State Pump Systems Triumph Interiors, Inc. Turblex Corporation Tuscarawas Co. Metro Sewer Dist. Twin City Water & Sewer TWL Consulting Union Co/Ostrander Union Rome Sewer Uni-Tech Environmental United Water URS Corporation US EPA US EPA OGWDW USAF USALCO, LLC. USDA, Rural Development USEPA OGWDW Utility Service Co., Inc. Utility Service Company VA Medical Center- Chillicothe Van Meter & Associates, Inc. Veolia Water North America LLC Village of Ada Village of Anna Village of Archbold Village of Ashville Village of Baltic Village of Beach City Village of Botkins Village of Byesville Village of Carey Village of Chagrin Falls Village of Clarksburg Village of Coal Grove Village of Covington Village of Creston Village of Cumberland Village of Dalton Village of DeGraff Village of Delta Village of Enon Village of Fort Recovery Village of Frankfort Village of Fredericktown Village of Gambier Village of Garrettsville Village of Georgetown Village of Gibsonburg Village of Glendale
Village of Grafton Village of Granville Village of Hartville Village Of Haskins Village of Hebron Village of Hebron WWTP Village of Hicksville Village of Jackson Center Village of Jamestown Village of LaGrange Village of Leetonia Village of Lewisburg Village of Lisbon Village of Lockland Village of Loudonville Village of Madison Village of Malta Village of Marblehead Village of Matamoras Village of McComb Village of Metamora Village of Millersburg Village of Millersport Village of Montpelier Village of Moreland Hills Village of New Concord Village of New Lexington Village of New London Village of New Paris Village of Newcomerstown Village of Oak Harbor Village of Obetz Water Dept. Village of Orwell Village of Ottawa Village of Paulding Village of Peebles Village of Prospect Village of Put-in-Bay Village of Roaming Shores Village of Russia Village of Sebring Village of Smithville Village of South Point Village of St. Louisville Water Village of St. Paris Village of Strasburg Village of Sunbury Village of Thornville Village of Utica Village of Warsaw Village of Washingtonville Village of Waynesville Village of West Alexandria Village of West Farmington Water Village of West Jefferson Village of West Union Village of Whitehouse Village of Winchester Village of Windham Village of Wintersville Village of Woodville Villlage of McConnelsville Virtual Water Solutions W.W. Williams Midwest Warren County Water & Sewer Washington County Commissioner Wausau Paper Wayne County Weatherford Engineered Chemistry Western Water Company Westerville Water Williams County Engineer Winkle Electric Co. WMOA/WJAW WPAFB Wright State University Xylem Water Solutions US, Inc. Yorkshire Water Youngstown State University YUSA Corporation Zenon Corporation