California utilities 601 to 720.

Each serves 40 to 4,861 people, as it reports to EPA. Your ZIP code finds yours faster.

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601 to 720 of 720, by people served

California utilities, 601 to 720 of 720, by people served
Utility	Based in	Serves	Regulated PFAS	Health-based violations since 2016
La Cumbre Mutual Water Co	Santa Barbara	4,861	None found	0
Sswd - del Paso Manor Service Area	Sacramento	4,854	None found	0
Las Flores Water Co.	Altadena	4,847	None found	0
Blue Lake Springs Mut WTR	Arnold	4,841	None found	0
Los Angeles Cwwd 37 - Acton	Alhambra	4,805	None found	0
Calipatria State Prison	Imperial	4,800	None found	0
Union Public Utility District	Murphys	4,774	None found	5
City of Lakeport	Lakeport	4,762	None found	0
Mojave PUD	Mojave	4,699	None found	0
Golden State Water Co. - Clearlake System	Rancho Cordova	4,644	None found	0
Valley View Mutual Water Co.	Baldwin Park	4,613	None found	0
Coachella Vwd: I.D. No. 8	Palm Desert	4,600	None found	0
Ivanhoe Public Utility Dist	Ivanhoe	4,580	None found	1
Channel Islands Beach CSD	Oxnard	4,560	None found	0
Cal Am - Bass Lake	Sacramento	4,527	None found	0
Golden State Water Company - Nipomo	Rancho Cordova	4,506	None found	0
Northstar CSD - Martis Valley	Truckee	4,493	Not sampled	0
Palomar Observatory	Palomar Mountain	4,416	Not sampled	0
Suburban Water Systems - Sativa	Covina	4,363	PFOS, PFHxS	0
MT. Konocti Mutual Water Company	Kelseyville	4,360	None found	3
Slvwd - Felton Water System	Boulder Creek	4,340	None found	1
California Rehabilitation Center - Norco	Norco	4,300	PFHxS	0
Correctional Training Facility - Soledad	Soledad	4,269	None found	0
Commerce - City, Water Dept.	Montebello	4,205	PFOA, PFBS	0
Meiners Oaks CWD	Ojai	4,200	None found	0
Cal Am - Arden	Sacramento	4,191	PFOA, PFOS, PFHxS	0
Meadow Vista CWD	Meadow Vista	4,183	None found	0
Golden State Water Co - Wrightwood	Apple Valley	4,177	PFBS	0
Planada CSD	Planada	4,164	PFOS, PFHxS, PFBS	1
Centerville C.S.D.	Redding	4,151	None found	0
Russian River County Water District	Forestville	4,150	None found	0
Armona Community Services Dist	Armona	4,143	None found	3
City of Wheatland	Wheatland	4,124	PFOS, PFHxS	0
Kelseyville Co Waterworks District 3	Lakeport	4,102	None found	0
Atascadero State Hospital	Atascadero	4,100	PFOS, PFHxS, PFBS	0
Centinela State Prison	Imperial	4,100	None found	0
Chuckawalla Valley State Prison	Blythe	4,090	None found	0
City of San Joaquin	San Joaquin	4,060	None found	0
Lake County CSA 21 - North Lakeport	Lakeport	4,046	Not sampled	0
Farm Mutual W.C. (The)	Wildomar	4,026	PFOA, PFOS, PFHxS	0
Sheep Creek Water Company	Phelan	4,002	PFHxS, PFBS	0
Weaverville C.S.D.	Weaverville	3,975	PFOS, PFHxS	1
Joint Regional Water Supply System	Laguna Beach	3,947	Not sampled	0
City of del Mar	Del Mar	3,919	None found	0
Bighorn - Desert View Water Agency	Yucca Valley	3,916	Not sampled	0
Tesoro Viejo Master MWC, Inc.	San Jose	3,885	Not sampled	0
Treasure Island	Burlingame	3,864	Not sampled	0
Woodlands Development	Arroyo Grande	3,862	Not sampled	0
Cdcr - High Desert State Prison	Susanville	3,857	None found	0
City of Angels	Angels Camp	3,836	None found	1
Gilbert Street Complex	San Bernardino	3,833	Not sampled	0
So. Cal. Edison Co. - Santa Catalina	Avalon	3,822	None found	0
City of Bishop	Bishop	3,819	None found	0
San Joaquin County - Mokelumne Acres	Stockton	3,802	PFOA, PFOS, PFHxS, PFBS	0
Willow County Water District	Ukiah	3,797	None found	0
Forestville Water District	Forestville	3,788	Not sampled	0
American Valley CSD	Quincy	3,778	None found	2
Idyllwild Water District	Idyllwild	3,762	Not sampled	4
Cal Am - Oakhurst	Sacramento	3,693	None found	26
City of MT. Shasta	Mount Shasta	3,642	None found	6
Brooktrails Township CSD	Willits	3,632	None found	0
Mission Hills CSD	Lompoc	3,600	None found	0
Esparto C.S.D.	Esparto	3,574	Not sampled	0
Lockeford Community Serv. Dist.	Lockeford	3,572	Not sampled	0
Cdcr - Sierra Conservation Center	Jamestown	3,571	Not sampled	4
Jackson Valley Irrigation District	Ione	3,553	None found	0
Cobb Area County Water District	Cobb	3,515	Not sampled	1
Hoopa Valley - Wide System	Hoopa	3,500	None found	0
Presidio of San Francisco	San Francisco	3,500	PFOA, PFHxS, PFBS	0
Colusa Southern System	Colusa	3,474	None found	0
East Orange County WD - Rz	Orange	3,464	Not sampled	0
San Antonio Water Company	Upland	3,441	None found	0
Borrego WD	Borrego Springs	3,429	None found	0
City of Brisbane	Brisbane	3,402	Not sampled	1
Groveland Community Serv Dist	Groveland	3,400	PFOS	3
Box Springs Mutual WC	Moreno Valley	3,382	Not sampled	0
Tahoe City PUD - Tahoe Swiss Village	Tahoe City	3,363	Not sampled	0
Rio Alto Water District	Cottonwood	3,329	Not sampled	0
Folsom, City of - Ashland	Folsom	3,317	None found	0
Cottonwood Water District	Cottonwood	3,316	None found	2
City of Rio Dell	Rio Dell	3,300	None found	0
Cwsc Oak Hills	San Jose	3,161	None found	0
Littlerock Creek Irrigation Dist.	Littlerock	3,040	None found	0
Cci - Tehachapi	Tehachapi	2,993	None found	1
Heritage Ranch CSD	Paso Robles	2,956	None found	15
Salinas Valley State Prison	Soledad	2,930	None found	0
City of Vallejo - Lakes System	Vallejo	2,800	None found	1
Town of Yountville	Yountville	2,787	None found	0
City of Alturas	Alturas	2,715	PFHxS	1
Terra Bella Irrigation District - Tbt	Terra Bella	2,656	None found	11
Arrowhead Villas Mutual Service Company	Skyforest	2,654	None found	0
Tipton Community Services Dist	Tipton	2,543	None found	13
Bolinas Community PUD	Bolinas	2,483	None found	0
Lucerne Water Co. - Cal Water Service	San Jose	2,129	None found	0
Cwsc Las Lomas	San Jose	2,084	None found	0
Guadalupe Valley Mid	Brisbane	1,472	PFOA, PFOS, PFHxS	0
California Water Service Co. - Lancaster	San Jose	1,387	None found	0
California Village	Needles	1,290	None found	0
City of Blue Lake	Blue Lake	1,172	None found	0
Sea Ranch Water Company,the (Puc)	Sea Ranch	1,160	PFHxS	1
Laton Community Services District	Laton	1,151	PFOA, PFOS, PFBS	1
Bakman Water - Rolling Hills	Fresno	1,107	None found	2
California - American Geyserville (Puc)	Sacramento	1,046	None found	0
Averydale MWC	Lancaster	1,023	None found	0
Thousand Trails San Benito Preserve	Paicines	1,017	None found	3
Ponderosa Basin Mutual WTR Co	Mariposa	798	None found	0
Riverside CSA #122 - Mesa Verde	Blythe	766	None found	0
Trout Gulch Mutual Water Company	Aptos	614	None found	0
CSA 70 W - 3 Hacienda	San Bernardino	611	None found	41
San Francisco Regional Water System	Burlingame	600	None found	0
San Joaquin River Club Inc	Tracy	600	None found	0
Patterson Tract CSD	Visalia	550	None found	0
Rancheritos MWC	Apple Valley	487	None found	0
Olympia Mobilodge	Fair Oaks	450	PFOA, PFHxS	0
Canada Woods WC	Carmel	356	None found	0
Porterville - Jones Corner	Porterville	339	None found	1
Lakeside Woods Mutual Water Co	Lakehead	310	None found	1
Bar - Len MWC	Barstow	126	None found	42
Tud - Wards Ferry Ranches	Sonora	62	PFBS	0
Wine Country Apartments	Stockton	40	None found	0

Utilities EPA sampled under UCMR 5, plus any other community system serving 3,300 people or more. Smaller systems appear in ZIP code results. People served is what each utility reports to EPA. Data: EPA SDWIS 2026 Q2 and UCMR 5.

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California utilities 601 to 720.

601 to 720 of 720, by people served

Where to go next

Read your utility’s own report

Every contaminant

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