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Connecticut utilities 101 to 200.

Each serves 189 to 750 people, as it reports to EPA. Your ZIP code finds yours faster.

Matched to your utility using EPA records.

101 to 200 of 388, by people served

Connecticut utilities, 101 to 200 of 388, by people served
UtilityBased inServesRegulated PFASHealth-based violations since 2016
Ctwc - Uconn South Eagleville Div.Mansfield750Not sampled0
Ctwc - Northern Reg - Lakewood/LakeviewCoventry748Not sampled0
Clc Owners CorporationBrookfield736Not sampled0
Kent School Corp (Valley Campus)Kent722Not sampled0
Ctwc - Spice Hill DivisionEast Hampton712Not sampled0
Lake Waubeeka AssociationDanbury712Not sampled0
Ctwc - Coventry Hills DivCoventry700None found0
SCWA, Ledyard Center DivisionLedyard652Not sampled0
Aquarion - Ball PondNew Fairfield629Not sampled0
Watertown Water & Sewer - WestgateWatertown600Not sampled0
Aquarion - SuffieldSuffield595Not sampled0
Quonnipaug Hills - Main SystemGuilford564Not sampled0
Preston Plains Water CompanyPreston550Not sampled1
Edgemere Condominium Assn., Inc.East Hampton540Not sampled0
Candlewood Knolls Water AuthorityNew Fairfield524Not sampled0
SCWA, Chesterfield DivisionMontville524Not sampled0
Salisbury SchoolSalisbury520Not sampled0
Ctwc - South Coventry SystemCoventry501Not sampled0
Sunny Valley Tax DistrictNew Milford500Not sampled5
Kitemaug Orchard Association, Inc.Montville490Not sampled0
Yeshiva of Waterbury - Durham CampusDurham490Not sampled2
Woodhaven ApartmentsWillington489Not sampled1
Aquarion - Falls VillageCanaan488Not sampled3
Harmony Acres Mobile Home ParkProspect465Not sampled0
Village Market PlaceGoshen462Not sampled2
Aquarion - LakesideSouthbury455Not sampled0
SCWA, Hillcrest Division (Hlc)Montville450Not sampled0
Ctwc - Shoreline Region - Masons IslandStonington445Not sampled0
Ctwc - Bay MountainGriswold440Not sampled0
Vernon Village Inc.Vernon430Not sampled1
Ctwc - Redwood Farms DivisionManchester424Not sampled2
Aquarion - New FairfieldNew Fairfield406Not sampled0
Rumsey Hall SchoolWashington398Not sampled0
Aquarion - MeadowbrookBridgewater396Not sampled0
Aquarion - Arlington AcresStonington392Not sampled0
Stony Hill Village Condominium AssnBrookfield392Not sampled0
Aqua Vista Assoc, IncDanbury388Not sampled0
SCWA, Robin Hill Division (Rbn)Montville388Not sampled0
SCWA, Cedar Ridge DivisionNorth Stonington370Not sampled1
East Hampton Wpca - Village CenterEast Hampton366Not sampled0
Gqc Well CommissionEast Granby360Not sampled1
Turkey Hill of East Granby, LLCEast Granby360Not sampled1
Knollcrest Tax DistrictNew Fairfield356Not sampled3
Hazardville - Rye Hill SystemSomers352Not sampled0
Ctwc - Ashford Park DivisionAshford334Not sampled0
Aquarion - Pleasure ValleyNorwich328Not sampled0
East Hampton Wpca - Royal Oaks SystemEast Hampton328Not sampled0
Ethel Walker SchoolSimsbury325Not sampled1
Aquarion - Carmen HillNew Milford322Not sampled0
Jewett City Water Co., S & W SystemGriswold320Not sampled0
Candlewood Trails Association, Inc.New Milford312Not sampled0
Knollwood ApartmentsMansfield312Not sampled2
Aquarion - Timber TrailsNew Fairfield310Not sampled0
Sterling Water SystemSterling308Not sampled0
Aquarion - Possum RidgeNew Fairfield307Not sampled0
Ctwc - General Water DivisionCoventry306Not sampled0
Sunny Waters Mobile Home ParkNorwich303Not sampled0
Meadows ApartmentsMontville301Not sampled0
Birch Groves Association, IncNew Milford300Not sampled1
SCWA, Barrett Division (Bar)Ledyard300Not sampled0
The Frederick Gunn School, Inc.Washington300Not sampled0
The Rectory SchoolPomfret300Not sampled1
Arrowhead Point Homeowners Assn Inc.Brookfield296Not sampled0
Chadwick Homeowners Assn., Inc.Old Lyme292Not sampled1
Arrowhead by the Lake Association, Inc.Wolcott288Not sampled1
Aquarion - Oakwood AcresNew Fairfield286Not sampled0
Old Farms Condominium Association IncNew Milford285Not sampled0
Colchester EstatesColchester276Not sampled1
Walden ApartmentsWillington276Not sampled1
Moosup Garden ApartmentsPlainfield270Not sampled0
Aquarion - Forest HillsNew Milford265Not sampled0
Woodbury Knoll, LLC.Woodbury258Not sampled1
Ctwc - Westchester VillageColchester252Not sampled0
Aquarion - Indian SpringDanbury242Not sampled0
Ctwc - Uconn Hunting Lodge Div.Mansfield234Not sampled0
Candle Hill Mobile Home ParkNew Milford233Not sampled1
Ctwc - Pilgrim Hills DivisionCoventry229Not sampled0
South Kent SchoolKent228Not sampled1
Ctwc - Chimney HillFarmington227Not sampled0
Westchester Hills Condominium Assn.Colchester225Not sampled1
Blue Trails Water AssociationDurham224Not sampled2
Colchester CommonsColchester224Not sampled2
Ctwc - London Park DivisionHebron221Not sampled0
Aquarion - Judea MainWashington219Not sampled0
Countryside ApartmentsWolcott218Not sampled1
Ctwc - Sdc WaterVoluntown216Not sampled0
Ctwc - Shoreline Reg - Chester Vllg WestChester216Not sampled1
Woodland Summit Community Water AssnTolland216Not sampled4
Aquarion - Clearview HillsWolcott215Not sampled0
Heritage Cove CondominiumsEssex208Not sampled0
Old Newgate Ridge Water Company IncEast Granby208Not sampled1
Quinebaug Mobile Home ParkThompson205Not sampled6
Tolland Water Dept - Torry RoadTolland204Not sampled3
Ctwc - Baker Hill DivisionEast Hampton203Not sampled0
Aquarion - Hollandale EstatesDanbury200Not sampled0
Carriage House ApartmentsMansfield196Not sampled0
Ctwc - Northern Reg - Llynwood SystemBolton192Not sampled0
White Oak CondominiumsMansfield192Not sampled1
Renwood ApartmentsMansfield190Not sampled4
Aquarion - East HamptonEast Hampton189Not sampled0

Every utility EPA sampled for PFAS under UCMR 5, any other community system serving 3,300 people or more, and any smaller one with results from 2020 on, from CDC. Other systems appear in ZIP code results. People served is what each utility reports to EPA. Data: EPA SDWIS 2026 Q3, UCMR 5 and EPA’s 2012 to 2019 compliance results, and CDC’s yearly averages.