California utilities 2,201 to 2,300.

Each serves 60 to 69 people, as it reports to EPA. Your ZIP code finds yours faster.

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2,201 to 2,300 of 2,762, by people served

California utilities, 2,201 to 2,300 of 2,762, by people served
Utility	Based in	Serves	Regulated PFAS	Health-based violations since 2016
Creekbridge Mutual Water Company	Hollister	69	Not sampled	0
Hardwick Water Company	Hanford	69	Not sampled	2
Harmony Haven	Riverside	69	Not sampled	0
Leafwood Community WA	Salinas	69	Not sampled	1
Lopez Project	San Luis Obispo	69	Not sampled	1
Rosa Morada Mutual Water Company	Hollister	69	Not sampled	0
San Vicente MWC	Soledad	69	Not sampled	4
Westside Harvesting	Fresno	69	Not sampled	1
Pinebrook Community Water Well	Wofford Heights	68	Not sampled	0
Quintette Service Corp Water	Georgetown	68	Not sampled	0
Santa Teresa Meadows Water Company	Coyote	68	Not sampled	0
Sierra Meadows	Kernville	68	Not sampled	0
Zonneveld Dairy - Cedar	Laton	68	Not sampled	5
Beach Creek Mobile Home Park	Sebastopol	67	Not sampled	0
Calistoga Farm Worker Center	Napa	67	Not sampled	0
Gold Rush Mobile Home Park	San Juan Capistrano	67	Not sampled	0
La Tierra Heights Mutual	Angwin	67	Not sampled	1
Mary Lou Mobile Home Park	Stockton	67	Not sampled	0
Mineral Mountain Mutual Water	Muphys	67	Not sampled	1
Morningside Mobilehome Park	Modesto	67	Not sampled	0
Moro Cojo Mwa	Prunedale	67	Not sampled	1
Sandy Point Mobile Home Park	Bethel Island	67	Not sampled	1
Doubletree Ranch Water System	Livermore	66	Not sampled	10
Golden Heights Mutual Water Company	Gilroy	66	Not sampled	0
Keeler Community Service District	Bakerfield	66	Not sampled	38
Mondavi Farm Worker Center	Napa	66	Not sampled	0
Moraga Heights Mutual Water	Canyon	66	Not sampled	0
Murphy Hill WS #02	Aromas	66	Not sampled	1
Naples	Goleta	66	Not sampled	0
Rancho Pino Verde	Lucerne Valley	66	Not sampled	1
Rau Dairy	Caruthers	66	Not sampled	0
River Ranch Farm Worker Center	Napa	66	Not sampled	0
Robin Way Water System	Fairfield	66	Not sampled	5
Rolling Hills Mutual Water Company	Orcutt	66	Not sampled	1
Santa Rita Water	Lompoc	66	Not sampled	8
Six Acres Water Company	San Francisco	66	Not sampled	8
Ventana Big Sur Inn WS	Big Sur	66	Not sampled	0
Vierra Knolls MWC	Salinas	66	Not sampled	1
Villa Tahoe Condominiums	Milpitas	66	Not sampled	0
Wilson Road Water Community	Bakersfield	66	Not sampled	30
4n Mobilehome Park	Oakdale	65	Not sampled	0
Bianchi Flowers Inc	Pescadero	65	Not sampled	1
Blue Lakes Village	Santa Rosa	65	Not sampled	0
Brookside MHP	Mentone	65	Not sampled	1
Burchell Road Water Association	Gilroy	65	Not sampled	0
Butte Court Mobile Home Park	Mather	65	Not sampled	1
Cdf - Pilot Rock Conservation Camp	Crestline	65	Not sampled	0
Cold Water Canyon MWC	Bishop	65	Not sampled	0
Community Mutual Water Co	Camarillo	65	Not sampled	0
Delta Conservation Camp	Suisun City	65	Not sampled	0
Evergreen Mobile Estates	Stockton	65	Not sampled	0
Garlen Court WS	Salinas	65	Not sampled	4
Hidden Views MHP WS	King City	65	Not sampled	0
Loma Mar Mutual	Loma Mar	65	Not sampled	2
Lone Pine Mutual Water Company	Sebastopol	65	Not sampled	0
Monte Sereno Mutual Benefit Water	San Luis Obispo	65	Not sampled	0
Oak Glen Retreat	Yorba Linda	65	Not sampled	0
Pine St WS #01	Greenfield	65	Not sampled	0
Rite of Passage/Sierra Ridge	San Andreas	65	Not sampled	1
River Rd WS #25	Gonzales	65	Not sampled	37
Spring Valley Heights Association Inc	Milpitas	65	Not sampled	0
Uvas Pines Rv Park	Morgan Hill	65	Not sampled	0
Vierra Meadows MWC	Salinas	65	Not sampled	1
Westerner Mobile Home Park	Elk Grove	65	Not sampled	0
Country Club County WD	Turlock	64	Not sampled	1
Elm Court	Fresno	64	Not sampled	1
Humboldt Woodlands Mutual	Forest Ranch	64	Not sampled	1
Laurel Community League	Los Gatos	64	Not sampled	2
Lone Pine MHP	Oakdale	64	Not sampled	0
Melita Heights Mutual Water Company	Santa Rosa	64	Not sampled	0
Palomino Estates Water Company	Garberville	64	Not sampled	3
Pioneer Place Mws	Aromas	64	Not sampled	0
River Retreat Mutual Water Company	Three Rivers	64	Not sampled	0
Wegis Mutual Water Company	Bakersfield	64	Not sampled	1
Abbey of New Clairvaux	Vina	63	Not sampled	0
Azcal Management Co	Lemoore	63	Not sampled	0
Cold Creek Mutual Water Company	MT. Shasta	63	Not sampled	0
Seawood Estates Mutual Water Company	Trinidad	63	Not sampled	0
Sid - Blue Ridge Oaks	Vacaville	63	Not sampled	0
Forest Point Mhc	Stockton	62	Not sampled	0
Hidden Canyon Ranch MWC	Salinas	62	Not sampled	0
Lassen Mobile Home Park	Torrance	62	Not sampled	0
Palisades, the	Redding	62	Not sampled	0
Ranchos del Rio	Bakersfield	62	Not sampled	1
Tud - Wards Ferry Ranches	Sonora	62	PFBS	0
Z Ranch MWC	Salinas	62	Not sampled	0
Mark West Acres MWC	Santa Rosa	61	Not sampled	0
Oakmont Water System	Stockton	61	Not sampled	0
Almond Park Water System	Stockton	60	Not sampled	0
Angels Camp Rv/Camping Resort	Angels Camp	60	Not sampled	1
Angler S Ranch #3	Bethel Island	60	Not sampled	0
Antelope Valley Mobile Estates	South Pasadena	60	Not sampled	0
Anza Vineyard Estates Mutual Water Co	Pismo Beach	60	Not sampled	0
Aspendell Mutual Water Company	Bishop	60	Not sampled	0
Boulevard Heights Mutual Water	Petaluma	60	Not sampled	0
Cachuma Village	Santa Barbara	60	Not sampled	0
Cathedral Wood Mutual Water Company	Scotts Valley	60	Not sampled	1
Country Hills Estates	Arroyo Grande	60	Not sampled	14
Country Villa Apts	Brentwood	60	Not sampled	40
Delany WC	Royal Oaks	60	Not sampled	0

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.

2,201 to 2,300 of 2,762, by people served

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