(As of October 2020)
Birmingham Water Works BoardCity of Madison Water & WastewaterDecatur Water Department
City of ChandlerEpcor Water - Arizona
Beaver Water DistrictCentral Arkansas WaterSearcy Water Utilities
Alameda County Water District California Water Service CompanyCity of Escondido City of FairfieldCity of NapaCity of ReddingCity of Vallejo Water DepartmentCoastside County Water Diestrict Contra Costa Water District East Bay Municipal Utility District Golden State Water Company Long Beach Water Department Metropolitan Water District of Southern California Modesto Regional Water Treatment Plant San Francisco Public Utilities Commission San Jose Water CompanyZone 7 Water Agency
Aurora Water Department Centennial Water & Sanitation DistrictCity of Boulder Department of Public Works City of BroomfieldCity of Cripple Creek City of Fort Collins City of Glenwood Springs City of Golden PW/WTP City of Grand Junction City of LongmontCity of Loveland City of Thornton City of Westminster Utilities Clifton Water District Colorado Springs Utilities Denver Water Erie Water Department Left Hand Water District Montezuma Water Company Parker Water & Sanitation District Upper Eagle Regional Water Authority Ute Water Conservancy District
Aquarion Water Company Connecticut Water Company The Metropolitan District
Wilmington Water Department
US Army Corps - Washington Aqueduct
American Water - Acciona AquaTampa Water Department
Atlanta-Fulton County Water Treatment PlantCartersville Water DepartmentCity of North Augusta Public Utilities City of Thomaston Columbus Water Works Douglasville Douglas County Water & Sewer Authority
Aqua Illinois, Inc.Aurora Water Department Central Lake County Joint Action Water AgencyCity of Chicago Water Department City of Moline Water Division Illinois American Water Village of GlencoeVillage of WestmontVillage of Wilmette
Citizens Energy GroupFort Wayne City Utilities Indiana American Water
City of AmesCity of Wahpeton Water SupplyIowa American Water
City of Wichita Water & Sewer Department Kansas City Board of Public UtilitiesLawrence Water & Sewer DepartmentWaterOne
Frankfort Electric & WaterHenderson Water UtilityKentucky American WaterLouisville Water CompanyPaducah Water
City of Rockville DPW Maryland American Water Washington Suburban Sanitary Commission
Brunswick & Topsham Water District
Ann Arbor Public Services Great Lakes Water Authority
Elk River Municipal UtilitiesSaint Paul Regional Water ServicesSaint Cloud Public Utilities
City of St. Louis Water DivisionCity Utilities of SpringfieldKC Water Missouri American Water
Metropolitan Utilities District
Las Vegas Valley Water DistrictTruckee Meadows Water Authority
City of Concord General ServicesManchester Water Works Pennichuck Water Works, Inc.
American Water (North Brunswick NJ Water Treatment)Brick Township Municipal Utilities Middlesex Water Company New Jersey American Water
Albuquerque Bernalillo County Water Utility Authority
City of Rochester Bureau of WaterMohawk Valley Water AuthorityMonroe County Water Authority Onondaga County Water Authority Queensbury Water Department Village of Ossining Water Department
Brunswick County Public WorksCape Fear Public Utilities AuthorityCharlotte WaterCity of Greensboro Water DepartmentCity of Mount HollyCity of RaleighCity of SanfordDurham Department of Water ManagementFayetteville Public Works Greenville Utilities CommissionHarnett County Department of Public UtilitiesKerr Lake Regional Water SystemOrange Water & Sewer AuthorityTown of Cary
Halifax Regional Water Commission
Aqua Ohio Water Company Avon Lake Regional Water Cleveland Division of WaterDayton Water Department Lake County Department of Utilities
City of Oklahoma CityCity of Shawnee Tulsa Metropolitan Utility Authority
Chatham-Kent Public Utilities Commission Regional Municipality of HaltonVeolia Water Canada
City of The DallesGrants Pass Public Works
Allentown Municipal Water System Aqua America, Inc.Blossburg Water AuthorityBorough of Birdsboro Borough of ChambersburgBorough of East GreenvilleBorough of Lewistown Brodhead Creek Regional Authority Cambria Township Water Authority Capital Region Water Carlisle Borough Municipal AuthorityCharleroi Borough Water Authority Chester Water Authority City of Bethlehem City of Philadelphia Derry Borough Municipal Authority Downingtown Municipal Water AuthorityElizabethtown Area Water Authority Ephrata Area Joint Authority Galeton Borough Authority Gallitzin Water Authority Gettysburg Municipal AuthorityHarrison Township Water Authority Highland Sewer & Water Authority Hooversville Borough Water System Huntingdon Borough Water PlantJersey Shore Area Joint Water Authority Jim Thorpe Water Department Kittanning Suburban Joint Water AuthorityMahanoy Township AuthorityMeyersdale Municipal Authority Middleburg Municipal Authority Mifflintown Municipal Authority Millersburg Area Authority Moon Township Municipal AuthorityMunicipal Authority Borough of Mansfield Municipal Authority of PortageMunicipal Authority of the Township of RobinsonMunicipal Authority of Union CityNorthampton Borough Municipal AuthorityNorth East Borough Water Department Oakmont Water Authority Pennsylvania American WaterPike Township Municipal Authority Pittsburgh Water & Sewer Authority Pottstown Water Plant Reading Area Water Authority Red Lion Municipal Authority Schuylkill County Municipal Authority Shamokin Dam Borough Shenandoah Municipal Water Authority Spring Township Municipal Authority State College Borough Water AuthorityWaynesboro Borough AuthorityWestern Berks Water Authority Williamsport Municipal Water Authority Williamstown Borough Authority Wrightsville Water Supply York Water Company
Anderson Regional Joint Water SystemBeaufort Jasper Water AuthorityCharleston Water SystemCity of Clinton Utilities City of Columbia Water WorksCity of NewberryCity of Orangeburg DPUEasley Combined UtilitiesGeorgetown County Water & Sewer DistrictGrand Strand Water & SewerGreenville Water Greenwood Commissioners of Public WorksSantee Cooper Regional Water SystemSpartanburg WaterStartex Jackson Wellford & Duncan Water District Woodruff-Roebuck Water District
City of Yankton
City of Kingsport Clarksville Gas & Water DepartmentMurfreesboro Water Resources DepartmentNashville Metro Water & SewerTennessee American WaterTulsa Metropolitan Utility Authority
Austin Water City of Houston Dallas Water UtilitiesEl Paso WaterNorth Texas Municipal WaterTyler Water Department
Central Utah Water Conservancy DistrictMetropolitan Water District of Salt Lake & SandyPark City Municipal CorporationSalt Lake City Public UtilitiesWashington County Water Conservancy District
Appomattox River Water AuthorityAqua VirginiaChesapeake Department of Public UtilitiesCounty of Chesterfield County of GloucesterNewport News Waterworks Department Spotsylvania County Department of Public UtilitiesTown of Culpeper Winchester Public Utilities Department
Burlington Public Works Champlain Water District
City of Bellingham Everett Public Works Department
Cudahy Water Utility
Clarksburg Water BoardWest Virginia American Water