California utilities 2,501 to 2,600.

Each serves 35 to 41 people, as it reports to EPA. Your ZIP code finds yours faster.

Find a California utility, city or county

2,501 to 2,600 of 2,762, by people served

California utilities, 2,501 to 2,600 of 2,762, by people served
Utility	Based in	Serves	Regulated PFAS	Health-based violations since 2016
Don Pedro Rec Ag:flem.Meadows	La Grange	41	Not sampled	0
Foothill Apartments	Porterville	41	Not sampled	0
Hartley Mutual Water System	Chico	41	Not sampled	1
Indian Creek Trailer Park	Santa Rosa	41	Not sampled	3
Riverside Crossing MHP	Los Molinos	41	Not sampled	1
Almira Water Association	Paso Robles	40	Not sampled	14
Anderson Mobile Home Park	Sacramento	40	Not sampled	0
Angelo Lane Water Company	Gilroy	40	Not sampled	0
Berry Dr WS #02	Salinas	40	Not sampled	0
Britz/Colusa	Fresno	40	Not sampled	2
Calera Canyon Heights HOA	Salinas	40	Not sampled	0
Cedar Creek Mobilehome Park	Zamora	40	Not sampled	1
Chiri Sweet Water Company	San Martin	40	Not sampled	1
Clear Creek Water Company	Cloverdale	40	Not sampled	0
Country Leisure Mobile Estates	Oakdale	40	Not sampled	0
Covington Mill MWC - Division B	Tujunga	40	Not sampled	1
East Three Rivers Mutual Water Corp	Three Rivers	40	Not sampled	1
Edgewater Mobile Home Park	Granite Bay	40	Not sampled	12
El Rancho Tajiguas	Goleta	40	Not sampled	0
Imperial Lakes Inc.	Alpine	40	Not sampled	0
Ione Band of Miwok Indians	Plymouth	40	Not sampled	0
Korths Pirates Lair	Isleton	40	Not sampled	0
La Torres Park	Tracy	40	Not sampled	1
Lakehead Subd Mutual Water Co	Lakehead	40	Not sampled	1
Mountain Springs Mutual Water Company	Los Gatos	40	Not sampled	0
Pg&E Helms Support Facility	Auberry	40	Not sampled	0
Puerta la Cruz Cc #14	Warner Springs	40	Not sampled	0
Ray Water Company	Santa Maria	40	Not sampled	1
Riverland Resort	Reedley	40	Not sampled	1
Riverview Homeowners Association	Bakersfield	40	Not sampled	0
Rolling Acres Mutual Water Company	Davis	40	Not sampled	0
Seymour'S Mutual Water System	Trinity Center	40	Not sampled	1
Sonoma County Mutual Water Company	San Francisco	40	Not sampled	45
Stonewood Canyon Estates	Idyllwild	40	Not sampled	2
Sutter Pines MHP	Sutter Creek	40	Not sampled	0
The Village	Coarsegold	40	Not sampled	0
West Water Company (Puc)	Santa Rosa	40	Not sampled	0
Wine Country Apartments	Stockton	40	None found	0
Womack Subdivision M.W.C.	Red Bluff	40	Not sampled	0
Yuba Apartment Homes	Yuba City	40	Not sampled	0
Zone 7 Water Agency	Livermore	40	Not sampled	0
60th Street Assoc. Water System	Rosamond	39	Not sampled	12
Ali Mutual Water Co	Tulare	39	Not sampled	0
Enclave at the Delta	Stockton	39	Not sampled	1
Fremont One	Stockton	39	Not sampled	17
Heath Brimhall P.O.A.	Bakersfield	39	Not sampled	0
Lodi Homes	Tracy	39	Not sampled	0
Los Madrones MWC	San Juan Bautista	39	Not sampled	0
Milton Road Water Company	Napa	39	Not sampled	2
Pappas & Co (Mendota)	Fresno	39	Not sampled	33
Big Creek Community Serv Dist	Big Creek	38	Not sampled	9
Chalk Hill Estates HOA	Lompoc	38	Not sampled	0
Greenhaven HOA	Greenville	38	Not sampled	0
Hanot Foundation Inc	Lockeford	38	Not sampled	0
Jonata Homeowners Association	Buellton	38	Not sampled	1
Little Lake Mobile Home Park	Napa	38	Not sampled	0
Rosario Park	Santa Barbara	38	Not sampled	0
Santa Anita Mutual Water Company	Gaviota	38	Not sampled	0
Stonebridge Mutual Water Co	Morgan Hill	38	Not sampled	0
Terra de Oro Water Company	Arroyo Grande	38	Not sampled	0
Whispering Pines MHP	Oakhurst	38	Not sampled	0
Colorado Mutual Water Company	Lancaster	37	Not sampled	1
Iid Village	Imperial	37	Not sampled	1
Sonoma Springs	Glen Ellen	37	Not sampled	0
Sunrise Mobilehome Park	San Francisco	37	Not sampled	0
Vinehill Vistas Mutual Water Company	Sebastopol	37	Not sampled	0
148 East Water System	Inyokern	36	Not sampled	1
Big River Vista Mutual Water Company	Mendocino	36	Not sampled	0
Bleich Flats Mutual	Lancaster	36	Not sampled	0
Deer Hill Mutual Water Co	Morgan Hill	36	Not sampled	0
Evergreen Mobile Home Park	Lincoln	36	Not sampled	0
Hillview Acres Mutual Water Company	Weldon	36	Not sampled	0
Hilton Mutual Water Company	Forestville	36	Not sampled	0
Hungry Gulch MWC	Lake Isabella	36	Not sampled	39
Indian Hills Camp	Jamul	36	Not sampled	11
Kings River Point	Piedra	36	Not sampled	0
Maze Blvd Mobilehome Park	Tracy	36	Not sampled	0
McClure Boat Club, Inc.	Snelling	36	Not sampled	1
Nicasio Valley Ranch Mutual	Nicasio	36	Not sampled	6
Point of View Mutual Water Co	Mendocino	36	Not sampled	0
Royal Sierra Estates WS	Salinas	36	Not sampled	0
Spaulding Eagle Lake MWC	Susanville	36	Not sampled	0
Zonneveld Dairy - Cerini	Laton	36	Not sampled	0
Blythe Mobile Home Estates	Valley Center	35	Not sampled	0
Camp Owen Water System	Kernville	35	Not sampled	0
Canyon Creek MHP	Redding	35	Not sampled	0
Christian Encounter Ministries	Grass Valley	35	Not sampled	0
Feather River Manor	Plumas Lake	35	Not sampled	1
First Mutual Water System	Rosamond	35	Not sampled	39
Gleanings for the Hungry	Sultana	35	Not sampled	24
Hitchcock Rd WS #01	Salinas	35	Not sampled	0
Life Water Co - Op	Inyokern	35	Not sampled	0
Linda Falls Terrace Mutual	Angwin	35	Not sampled	0
Mount Toro Ranchos Mwa	Salinas	35	Not sampled	0
Odiyan Buddhist Retreat Center	Cazadero	35	Not sampled	0
Oku Incorporated	Pescadero	35	Not sampled	0
Outlook WA	Carmel Valley	35	Not sampled	0
Partington MWC	Big Sur	35	Not sampled	0
R.S. Mutual Water Company	Wofford Heights	35	Not sampled	73
Rivers End Trailer Park	Agoura Hills	35	Not sampled	1

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 the state. 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 California State Water Resources Control Board, Division of Drinking Water.

2,501 to 2,600 of 2,762, by people served

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