California tap water, by utility.

720 utilities with a full report, serving 39 million people as they report it. Regulated PFAS turned up at 199 of them.

California utilities by population served
Utility	Based in	Serves	Regulated PFAS	Health-based violations since 2016
Los Angeles - City, Dept. of Water & Power	Los Angeles	3,875,566	None found	2
East Bay MUD	Oakland	1,442,800	None found	0
City of San Diego	San Diego	1,385,379	None found	0
San Jose Water	San Jose	1,039,920	PFOS, PFHxS	1
SFPUC City Distribution Division	Burlingame	848,019	None found	0
Eastern Municipal WD	Perris	666,581	None found	0
City of Fresno	Fresno	545,716	PFOA, PFOS, PFHxS, PFNA, PFBS	0
City of Sacramento Main	Sacramento	527,979	PFOA, PFOS, PFHxS, PFBS	0
Long Beach Utilities Department	Long Beach	466,772	None found	0
Irvine Ranch Water District	Irvine	444,800	None found	0
City of Anaheim	Anaheim	348,593	PFOA, PFOS, PFHxS, PFBS	0
Alameda County Water District	Fremont	344,000	None found	0
City of Santa Ana	Santa Ana	310,539	PFOA, PFOS, PFHxS	0
City of Riverside	Riverside	298,398	PFOS	0
Santa Clarita Valley Water Agency	Newhall	294,090	PFOA, PFOS, PFHxS, PFBS	0
Gswc - Southwest	Hawthorne	277,740	None found	0
Helix Water District	La Mesa	277,668	None found	0
Coachella Vwd: Cove Community	Palm Desert	270,000	None found	0
Cws - Bakersfield	San Jose	267,881	PFOA, PFOS, PFHxS, PFBS	0
San Gabriel Valley Water Co. - El Monte	El Monte	248,000	None found	2
Otay Water District	Spring Valley	238,008	None found	0
San Gabriel Valley WC - Fontana	Fontana	237,700	None found	0
City of Modesto	Modesto	218,771	PFOA, PFOS, PFHxS, PFBS	0
San Bernardino City	San Bernardin0	214,665	PFHxS, PFBS	0
Cucamonga Valley Water District	Rancho Cucuamonga	211,069	None found	0
Los Angeles Cwwd 40 Reg 4 & 34 Lancaster	Alhambra	208,129	None found	0
City of Huntington Beach	Huntington Beach	201,000	PFOS, PFHxS	0
Oxnard Water Dept	Oxnard	200,232	None found	0
Contra Costa Water District	Concord	198,000	None found	0
Sacramento Suburban Water District	Sacramento	194,444	PFHxS, PFBS	0
City of Stockton	Stockton	191,302	PFOA, PFOS, PFBS	3
Sweetwater Authority	Chula Vista	191,282	PFOA, PFOS, PFHxS, PFBS	0
Glendale - City, Water Dept.	Glendale	188,784	PFOA, PFOS, PFHxS, PFBS	0
Marin Municipal Water District	Corte Madera	186,895	None found	0
Ontario Municipal Utilities Company	Ontario	185,010	PFOA, PFOS, PFHxS	0
SCWA - Laguna/Vineyard	Sacramento	184,896	PFOA, PFOS, PFHxS, PFBS	1
California Water Service - Stockton	San Jose	176,266	PFOS	0
City of Santa Rosa	Santa Rosa	175,396	None found	0
City of Garden Grove	Garden Grove	174,226	PFOA, PFOS, PFHxS	0
City of Oceanside	Oceanside	171,483	None found	0
Moulton Niguel Water District	Laguna Hills	170,236	None found	0
Elsinore Valley MWD	Lake Elsinore	169,455	None found	0
Suburban Water Systems - San Jose	Covina	168,843	PFBS	0
City of Corona	Corona	168,575	PFHxS	0
Santa Margarita Water District	Rancho Santa Margarita	168,289	None found	0
Pasadena Water and Power	Pasadena	164,344	None found	0
City of Hayward	Hayward	162,954	None found	0
City of Bakersfield	Bakersfield	160,144	PFOS, PFHxS, PFNA	0
City of Sunnyvale	Sunnyvale	157,566	None found	0
City of Roseville	Roseville	155,612	None found	0
California Water Service Co. - Ela	San Jose	152,474	PFOS, PFBS	0
Pomona - City, Water Dept.	Pomona	151,713	PFOA, PFOS, PFHxS, PFBS	0
Cws - Visalia	San Jose	148,496	PFOA, PFOS, PFBS	0
Rancho California Water District	Temecula	146,147	PFOA, PFOS, PFHxS, PFBS	0
California Water Service Co. - Dominguez	San Jose	143,996	PFHxS	0
City of Fullerton	Fullerton	139,461	PFOA, PFOS, PFHxS, PFBS	1
City of Escondido	Escondido	137,044	None found	0
Victorville Water District	Victorville	135,983	None found	0
Jurupa Community SD	Jurupa Valley	135,093	None found	0
Vista Irrigation District	Vista	132,430	None found	0
El Dorado ID - Main	Placerville	132,171	None found	0
City of Santa Clara	Santa Clara	130,746	None found	0
City of Clovis	Clovis	130,130	PFOA, PFOS, PFHxS, PFNA, PFBS	0
Palmdale Water Dist.	Palmdale	126,804	PFBS	0
Cwsc Salinas	San Jose	123,679	None found	0
City of Vallejo	Vallejo	121,420	None found	0
City of Orange	Orange	120,770	PFOA, PFOS, PFHxS, PFBS	0
City of Fairfield	Fairfield	120,377	None found	1
City of Antioch	Antioch	115,074	None found	0
Cal - Water Service Co. - Chico	San Jose	114,925	PFOA, PFOS, PFHxS, PFBS	0
Golden State WC - West Orange County	Anaheim	114,379	PFOA, PFOS, PFHxS	0
Ventura Water Department	Ventura	113,500	PFHxS, PFBS	1
Vallecitos WD	San Marcos	113,500	None found	0
Downey - City, Water Dept.	Downey	110,556	PFOA, PFOS, PFHxS, PFBS	1
Great Oaks WC Inc	San Jose	110,088	PFOS, PFHxS	0
Azusa Light and Water	Azusa	110,044	PFOA, PFOS	0
Mesa Water District	Costa Mesa	110,000	None found	0
San Bernardino Valley WD	San Bernardino	109,608	Not sampled	0
City of Santa Maria Utilities Department	Santa Maria	109,477	None found	0
East Valley Water District	Highland	108,629	PFOA, PFOS, PFHxS, PFBS	3
Torrance - City, Water Dept.	Torrance	106,183	None found	0
Cal - Am Water Coronado	Imperial Beach	106,000	None found	1
Burbank - City, Water Dept.	Burbank	105,603	None found	0
City of Daly City	Daly City	104,901	None found	0
West Valley Water District	Rialto	104,498	None found	0
California Water Service - San Mateo	San Jose	102,348	None found	0
City of San Jose - Evg/Edv/Coy	San Jose	101,265	None found	0
Walnut Valley Water District	Walnut	100,941	None found	0
Hesperia WD	Hesperia	100,744	PFOA, PFOS, PFHxS	0
South Tahoe PUD - Main	South Lake Tahoe	100,000	PFOA, PFOS, PFHxS, PFBS	0
City of Vacaville	Vacaville	99,650	PFOA, PFOS, PFHxS, PFBS	0
City of Santa Barbara Water Department	Santa Barbara	99,323	None found	0
Dublin San Ramon Services District	Pleasanton	98,776	None found	0
California Water Service Co. - Herm/Redo	San Jose	96,853	None found	0
City of Tracy	Tracy	96,609	None found	0
Carlsbad MWD	Carlsbad	95,158	None found	0
Ventura Wwd No. 8 - Simi Valley	Simi Valley	94,738	None found	0
Santa Cruz Water Department	Santa Cruz	94,626	None found	0
Padre Dam MWD	Santee	93,980	None found	0
City of Merced	Merced	93,692	PFOA, PFOS, PFHxS	0
City of Redwood City	Redwood City	92,819	None found	0
Cal Am Water Company - Monterey	Pacific Grove	92,450	PFOA, PFOS, PFHxS, PFBS	0
City of Westminster	Westminster	90,911	PFOS, PFHxS	0
Santa Monica - City, Water Division	Santa Monica	89,947	PFOA, PFBS	0
City of Redding	Redding	89,628	PFOA, PFOS, PFHxS, PFBS	0
Placer CWA - Foothill	Auburn	89,544	None found	0
Olivenhain MWD	Encinitas	86,458	None found	0
City of Chino	Chino	86,435	None found	0
Western MWD	Riverside	86,062	PFHxS, PFBS	0
City of Manteca	Manteca	84,928	PFOA, PFHxS, PFBS	0
City of Napa	Napa	84,804	None found	1
Indio Water Authority	Indio	84,757	None found	0
Goleta Water District	Goleta	84,462	None found	0
Yorba Linda Water District	Placentia	84,292	None found	0
City of Buena Park	Buena Park	81,998	PFOS, PFHxS	0
City of Milpitas	Milpitas	81,773	None found	0
City of Mountain View	Mountain View	81,501	None found	0
Folsom, City of - Main	Folsom	80,969	None found	0
Inglewood - City, Water Dept.	Inglewood	80,824	PFOA	0
City of Alhambra	Alhambra	79,776	None found	0
City of Upland	Upland	78,376	PFBS	0
Redlands City MUD - Water Div	Redlands	78,025	PFOA, PFOS, PFHxS	0
City of Pleasanton	Pleasanton	76,689	PFOA, PFOS, PFHxS, PFBS	0
South Gate - City, Water Dept.	South Gate	76,443	PFOA, PFOS, PFHxS, PFBS	0
City of Chino Hills	Chino Hills	76,414	None found	0
Compton - City, Water Dept.	Compton	74,877	PFOA, PFOS, PFHxS	0
Desert Water Agency	Palm Springs	74,807	None found	0
City of Turlock	Turlock	72,682	None found	1
Liberty Utilities - Bellflower - Norwalk	Downey	72,624	PFOA, PFOS, PFHxS, PFBS	0
Las Virgenes MWD	Calabasas	72,602	None found	0
City of Tulare	Tulare	72,241	None found	0
California Water Service Co. - Palos Ver	San Jose	71,452	None found	0
City of Yuba City	Yuba City	70,256	None found	0
Cwsc Los Altos Suburban	San Jose	69,973	PFHxS	0
Valley County Water Dist.	Baldwin Park	68,871	None found	0
City of Newport Beach	Newport Beach	68,572	None found	0
City of Lodi	Lodi	68,272	PFOA, PFOS, PFHxS, PFBS	0
Citrus Heights Water District	Citrus Heights	67,818	None found	0
City of Davis	Davis	67,457	None found	0
City of Palo Alto	Palo Alto	67,231	None found	0
Lynwood - City, Water Dept.	Lynwood	66,967	PFOA, PFOS, PFHxS	0
Beaumont Cherry Valley WD	Beaumont	66,841	None found	0
Cal American Water Co	Rosemead	66,809	None found	0
City of Tustin	Tustin	66,600	PFOS, PFHxS	0
City of Madera	Madera	66,560	None found	0
Lakewood - City, Water Dept.	Lakewood	66,135	PFOS, PFHxS	0
Suburban Water Systems - Whittier	Covina	66,045	PFOA, PFOS, PFBS	0
City of Watsonville	Watsonville	65,231	PFOA, PFOS, PFHxS, PFBS	0
Brentwood	Brentwood	64,513	None found	0
Liberty Utilities (Av Ranchos) Corp.	Downey	64,469	None found	0
California Water Service - S San Francisco	San Jose	64,146	None found	0
City of Porterville	Porterville	63,487	PFOA, PFOS, PFHxS, PFBS	1
Gswc - Florence/Graham	Anaheim	63,472	None found	0
City of la Habra	La Habra	63,118	None found	0
City of Pittsburg	Pittsburg	62,500	None found	0
Monterey Park - City, Water Dept.	Monterey Park	62,183	None found	1
City of Hanford	Hanford	62,127	None found	4
North Marin Water District	Novato	61,691	None found	0
City of Woodland	Woodland	61,462	None found	0
California Water Service - Bear Gulch	San Jose	61,431	None found	0
City of Petaluma	Petaluma	60,781	None found	0
California Water Service - Livermore	San Jose	60,414	PFOA, PFOS, PFHxS, PFBS	0
City of Gilroy	Gilroy	59,203	PFOA, PFOS, PFHxS, PFBS	1
Suburban Water Systems - la Mirada	Covina	56,793	PFOA, PFOS, PFHxS, PFBS	0
City of Fountain Valley	Fountain Valley	56,747	PFHxS	0
Gswc - San Dimas	San Dimas	56,538	PFOS	0
Alco Water Service	Salinas	56,253	None found	0
Rowland Water District	Rowland Heights	56,100	None found	0
Monte Vista WD	Montclair	56,017	PFOS, PFHxS	0
Paramount - City, Water Dept.	Paramount	55,200	None found	0
Gswc - Bell, Bell Gardens	Anaheim	55,050	PFOS, PFHxS, PFBS	0
Cal Am - Suburban Rosemont	Sacramento	54,793	PFOA, PFOS, PFHxS	0
City of Lincoln	Lincoln	54,538	PFOS, PFHxS	0
City of Ceres	Ceres	54,513	PFOA, PFOS, PFHxS, PFBS	1
City of Rialto	Rialto	54,453	PFOA, PFHxS, PFBS	0
City of West Sacramento	West Sacramento	53,355	None found	1
City of Thousand Oaks Water Department	Thousand Oaks	53,157	None found	0
Lake Hemet MWD	Hemet	52,913	None found	1
Yucaipa Valley Water District	Yucaipa	52,010	PFOA, PFBS	5
El Toro Water District	Lake Forest	51,800	None found	0
City of San Clemente	San Clemente	51,545	None found	0
City of Delano	Delano	51,428	None found	0
City of Arcadia	Arcadia	51,361	PFOS, PFHxS	0
Cal Am - Parkway	Sacramento	50,573	PFOA, PFOS, PFHxS	0
Gswc - Artesia	Anaheim	50,415	PFOS, PFHxS	0
Golden State WC - Placentia/Yorba Linda	Anaheim	50,381	PFOA, PFOS, PFHxS, PFBS	0
Whittier - City, Water Dept.	Whittier	49,954	PFOA, PFOS, PFBS	0
Glendora - City, Water Dept.	Glendora	49,934	None found	0
City of Poway	Poway	49,888	None found	0
Uc - Davis	Davis	49,616	None found	0
City of Brea	Brea	48,479	None found	0
Cal Am - Lincoln Oaks	Sacramento	48,094	None found	0
Cal/Am Water Company - San Marino	Rosemead	47,995	None found	0
San Luis Obispo Water Department	San Luis Obispo	47,788	None found	0
Cerritos - City, Water Dept.	Cerritos	47,475	PFOS	0
City of Los Banos	Los Banos	47,419	None found	1
City of Morgan Hill	Morgan Hill	47,374	PFHxS	0
Golden State Water Co. - Cordova	Rancho Cordova	47,161	None found	0
Camarillo Water Dept	Camarillo	46,824	None found	0
City of Colton	Colton	46,525	PFOA, PFOS, PFHxS, PFBS	0
Bellflower - Somerset MWC	Bellflower	46,300	PFOS, PFHxS	0
City of San Jose - Nsj/Alviso	San Jose	45,559	None found	0
Golden State Water Company - Simi Valley	Rancho Cordova	45,128	None found	0
Oildale MWC	Bakersfield	44,899	None found	5
Hawthorne - City Water Dept.	Hawthorne	44,718	None found	0
City of Rohnert Park	Rohnert Park	43,821	PFOS, PFHxS	0
Elk Grove Water District	Elk Grove	43,813	PFHxS	0
City of El Centro	El Centro	43,772	None found	0
Coachella Water Authority	Coachella	43,590	None found	0
Mission Springs WD	Desert Hot Springs	43,484	None found	0
Diablo Water District	Oakley	43,357	None found	0
Gswc - Norwalk	Anaheim	43,167	None found	0
City of San Bruno	San Bruno	42,631	None found	0
Camp Pendleton (South)	Camp Pendleton	42,219	PFHxS, PFBS	4
Indian Wells Valley W.D.	Ridgecrest	41,580	None found	0
Carmichael Water District	Carmichael	41,193	None found	0
South Coast Water District	Laguna Beach	41,118	None found	0
California State University Fresno	Fresno	41,000	PFOA, PFBS	0
Soquel Creek Water District	Soquel	40,809	None found	0
Pico Rivera - City, Water Dept.	Pico Rivera	40,600	PFOA, PFOS, PFHxS, PFBS	0
Lompoc - City Water Utility Div	Lompoc	40,473	None found	0
San Dieguito WD	Encinitas	40,405	PFOA, PFBS	0
City of Calexico	Calexico	40,357	None found	2
Beverly Hills - City, Water Dept.	Beverly Hills	40,121	None found	0
City of Adelanto	Adelanto	39,930	PFOS, PFHxS	0
Gswc - Claremont	San Dimas	39,730	PFOA, PFOS, PFHxS, PFBS	0
Santa Margarita Water District - Id9	San Juan Capistrano	39,684	None found	0
San Gabriel County WD	Rosemead	39,345	None found	0
City of Livermore	Livermore	38,892	None found	0
North Coast County Water Dist	Pacifica	38,546	None found	0
Marina Coast Water District	Marina	38,377	None found	0
Gswc - Culver City	Santa Fe Springs	38,233	None found	0
Tejon Castac WD - I5 & Laval Rd	Lebec	38,125	None found	0
Monrovia - City, Water Dept.	Monrovia	37,931	PFOA, PFOS, PFHxS	0
Vaughn WC Inc	Bakersfield	37,189	None found	0
Ramona Municipal WD	Ramona	37,047	None found	0
NAS North Island & Nab Coronado	San Diego	36,990	None found	0
Rubidoux Community SD	Jurupa Valley	36,827	None found	0
Truckee - Donner PUD, Main	Truckee	36,730	PFOA	0
Estero Municipal Improvement District	Foster City	36,556	None found	0
Fair Oaks Water District	Fair Oaks	36,226	None found	0
Stanford University	Stanford	35,853	None found	1
Crescenta Valley CWD	La Crescenta	35,841	PFOA, PFHxS, PFBS	0
Cal Am - Antelope	Sacramento	35,534	None found	0
Ventura Cwwd No. 1 - Moorpark	Moorpark	35,514	None found	0
Lakeside WD	Lakeside	35,500	PFOS, PFHxS, PFBS	0
California Water Service - San Carlos	San Jose	35,344	None found	0
Fallbrook PUD	Fallbrook	35,237	None found	0
City of Lathrop	Lathrop	35,080	PFOS, PFHxS, PFBS	0
Golden State Water Company - Orcutt	Hawthorne	34,102	None found	0
City of Hemet	Hemet	33,828	None found	0
Covina - City, Water Dept.	Covina	33,300	None found	0
Camrosa Water District	Camarillo	32,700	PFOS	0
Manhattan Beach - City, Water Dept.	Manhattan Beach	32,697	None found	0
Golden State Water Co - Barstow	Apple Valley	32,547	PFOA, PFHxS	0
East Niles CSD	Bakersfield	32,517	None found	3
Los Angeles Cwwd 29 & 80 - Malibu	Alhambra	32,348	None found	0
City of Banning	Banning	31,680	None found	0
City of Burlingame	Burlingame	31,451	None found	0
La Verne, City WD	La Verne	31,334	None found	1
City of Paso Robles Water Division	Paso Robles	31,176	PFOA, PFHxS, PFBS	0
City of Santa Paula	Santa Paula	31,018	None found	0
City of Martinez	Martinez	30,997	None found	0
SCWA Mather - Sunrise	Sacramento	30,825	None found	1
Rincon del Diablo MWD (ID - 1)	Escondido	30,757	None found	0
Atascadero Mutual Water Co	Atascadero	30,618	PFOA, PFOS, PFHxS, PFBS	0
Mid - Peninsula Water District	Belmont	30,609	None found	0
Valley Center MWD	Valley Center	29,938	None found	0
Calif State Polytechnical Univ - Pomona	Pomona	29,854	PFHxS, PFBS	3
San Juan Water District	Granite Bay	29,598	None found	0
City of East Palo Alto	East Palo Alto	29,519	None found	0
City of Atwater	Atwater	29,479	PFOA, PFOS, PFHxS, PFBS	0
Suisun - Solano Water Authority	Vacaville	29,105	None found	11
Pechanga	Temecula	29,100	PFBS	0
Vernon - City, Water Dept.	Vernon	28,112	None found	0
Placer CWA - Auburn/Bowman	Auburn	27,294	None found	0
City of Dinuba	Dinuba	27,281	None found	1
City of Lemoore	Lemoore	27,185	None found	39
City of Benicia	Benicia	27,131	PFBS	0
City of Eureka	Eureka	27,078	None found	0
Gswc - South Arcadia	San Dimas	27,072	PFOA, PFOS, PFHxS	0
City of Brawley	Brawley	26,862	None found	0
Montebello Land & Water Co.	Montebello	26,554	PFOA, PFOS, PFHxS, PFBS	0
City of Galt	Galt	26,536	None found	0
Cws - Selma	San Jose	26,517	None found	0
Hi Desert WD	Yucca Valley	26,411	PFHxS	0
Liberty Utilities - Compton	Downey	26,371	None found	0
City of Sanger	Sanger	26,357	PFOA, PFOS	1
Gswc - South San Gabriel	San Dimas	26,240	None found	0
Big Bear Lake Dwp - Big Bear System	Big Bear Lake	26,132	PFOA, PFOS, PFHxS, PFBS	0
City of Reedley	Reedley	26,076	None found	0
City of Hollister	Hollister	26,017	None found	4
Town of Windsor	Windsor	25,561	None found	0
City of South Pasadena	South Pasadena	25,329	None found	0
Sunny Slope Water Co.	Pasadena	25,252	None found	0
City of Loma Linda	Loma Linda	25,129	None found	0
City of Norco	Norco	25,068	PFOA, PFOS, PFHxS, PFBS	1
Orchard Dale Water District	Whittier	25,000	PFOA, PFOS, PFHxS, PFBS	0
City of Patterson	Patterson	24,977	None found	0
Sunnyslope County Water Dist	Hollister	24,954	PFOA, PFOS	0
City of Mountain House	Mountain House	24,948	None found	0
City of Seal Beach	Seal Beach	24,937	None found	0
City of Riverbank	Riverbank	24,834	None found	1
Cal - Am Water Company - Duarte	Rosemead	24,773	PFOS	0
Liberty Utilities - Lynwood	Downey	24,701	PFOA, PFOS, PFHxS	0
Phelan Pinon Hills CSD	Phelan	24,285	None found	0
San Fernando - City, Water Dept.	San Fernando	23,946	None found	0
Golden State Water Company - Bay Point	Rancho Cordova	23,731	None found	0
Rainbow Municipal WD	Fallbrook	23,536	None found	0
City of Oakdale	Oakdale	23,235	None found	1
Valley of the Moon Water District	El Verano	23,107	PFOA, PFOS, PFHxS, PFBS	0
El Monte - City, Water Dept.	El Monte	22,968	PFOS, PFHxS	0
City of Corcoran	Corcoran	22,808	None found	0
City of Millbrae	Millbrae	22,795	None found	0
Cws - North Garden	San Jose	22,762	PFOS	0
City of Wasco	Wasco	22,757	None found	0
South Feather W&P - Miners Ranch	Oroville	22,664	None found	0
Menlo Park Municipal Water	Menlo Park	22,362	None found	0
Pico WD	Pico Rivera	22,051	PFOA, PFOS, PFHxS, PFBS	0
Temescal Valley Water District	Temescal Valley	21,971	None found	0
City of Shafter	Shafter	21,915	None found	0
Linda County Water District	Marysville	21,654	None found	0
City of Imperial	Imperial	21,591	None found	8
Santa Fe I.D.	Rancho Santa Fe	21,578	None found	0
City of American Canyon	American Canyon	21,437	None found	9
Port Hueneme City Water Dept	Port Hueneme	21,407	None found	0
San Lorenzo Valley Water Dist	Boulder Creek	21,145	PFBS	1
City of Arcata	Arcata	20,875	None found	0
Cal/Am Water Company - Baldwin Hills	Rosemead	20,724	None found	0
West Kern Water District	Taft	20,500	None found	0
Norwalk - City, Water Dept.	Norwalk	20,283	PFOA, PFOS, PFHxS	0
Lomita - City, Water Dept.	Lomita	20,256	PFOS, PFHxS	1
Riverside Highland Water Company	Grand Terrace	20,188	PFOA, PFOS, PFHxS, PFBS	0
Humboldt C.S.D.	Cutten	19,807	None found	0
Arvin Community Services Dist	Arvin	19,669	None found	15
California Water Service Co - Westlake	San Jose	19,533	None found	0
City of Soledad	Soledad	19,455	None found	0
Santa Fe Springs - City, Water Dept.	Santa Fe Springs	19,219	PFOA, PFOS, PFBS	0
Quartz Hill Water Dist.	Quartz Hill	19,100	None found	0
Lamont Public Utility Dist	Lamont	19,057	None found	5
City of Greenfield	Greenfield	18,967	None found	0
City of San Jacinto	San Jacinto	18,950	None found	0
Coastside County Water District	Half Moon Bay	18,940	None found	0
Twentynine Palms Water District	Twentynine Palms	18,795	None found	0
Bella Vista Water District	Redding	18,612	None found	0
NPS Ggnra	Sausalito	18,447	None found	0
Laguna Beach County WD	Laguna Beach	18,404	None found	0
California Water Service Co. - Travis AFB	San Jose	18,111	None found	0
City of Arroyo Grande Utilities Division	Arroyo Grande	17,963	PFOA, PFOS, PFHxS, PFBS	0
Rosamond CSD	Rosamond	17,711	None found	0
Western MWD - Murrieta Division	Riverside	17,453	PFOA, PFOS, PFHxS	0
Bakman Water Company	Fresno	17,393	None found	1
Coalinga - City	Coalinga	17,277	None found	0
City of Crescent City	Crescent City	17,262	None found	0
City of Kerman	Kerman	17,256	None found	0
Nevada ID - E. George, Banner Mountain	Grass Valley	17,154	None found	0
McKinleyville C.S.D.	McKinleyville	16,900	None found	0
Orange Vale Water Company	Orangevale	16,861	None found	0
Town of Discovery Bay	Discovery Bay	16,790	None found	0
Pinedale County Water District	Pinedale	16,736	PFOA, PFOS, PFHxS, PFBS	0
City of Ukiah	Ukiah	16,607	PFOA, PFOS, PFHxS, PFBS	0
Olivehurst Public U.D.	Olivehurst	16,595	None found	0
El Segundo - City, Water Dept.	El Segundo	16,445	None found	0
Fillmore Water Dept	Fillmore	16,419	None found	0
City of Cupertino	Cupertino	16,336	None found	0
Cwsc King City	San Jose	16,334	None found	0
Nasa Ames Research Center	Moffett Field	16,273	None found	0
Walnut Park Mutual Water Co.	Huntington Park	16,180	None found	0
Lincoln Avenue Water Co.	Altadena	16,088	None found	0
USMC - 29 Palms	Twentynine Palms	16,067	None found	0
Morongo	Banning	16,000	None found	0
Carpinteria Valley Water District	Santa Barbara	15,996	None found	0
City of la Palma	La Palma	15,948	None found	0
City of Ripon	Ripon	15,741	PFOA, PFOS, PFHxS	0
US Army Fort Irwin	Fort Irwin	15,701	None found	4
Cal Am - Fruitridge Vista	Sacramento	15,652	None found	0
Rio Linda/Elverta Community Water Dist	Rio Linda	15,460	PFHxS	0
Northstar C.S.D.	Truckee	15,452	None found	0
Huntington Park - City, Water Dept.	Huntington Park	15,437	PFOA, PFOS, PFHxS	0
Loma Linda University	Loma Linda	15,368	PFOS, PFHxS	0
South Montebello Irrigation Dist.	Montebello	15,021	PFOA, PFOS, PFBS	0
Lemoore Naval Air Station	Lemoore	15,000	None found	2
California Mens Colony	San Luis Obispo	15,000	None found	0
American Water O&M, LLC - Vsfb	Vandenberg Sfb	14,971	None found	0
Sbdno County Service Area 64	San Bernardino	14,911	None found	0
City of Livingston	Livingston	14,894	None found	2
City of Red Bluff	Red Bluff	14,710	PFOA	0
City of Parlier	Parlier	14,576	None found	1
City of Modesto - Salida	Modesto	14,537	None found	0
Pala North	Pala	14,280	PFOA, PFBS	16
City of California City	California City	14,198	None found	0
City of McFarland	McFarland	14,161	None found	7
Nevada ID - Loma Rica	Grass Valley	14,072	None found	0
Tract 180 Mutual Water Co.	Cudahy	14,000	PFOA, PFOS, PFHxS	0
Chowchilla City Water Dept	Chowchilla	13,916	PFOA	0
Triunfo Water & Sanitation District	Westlake Village	13,898	None found	0
Nipomo Comm Services Dist	Nipomo	13,771	None found	0
Morro Bay Pw Dept - Water Division	Morro Bay	13,757	None found	0
City of Avenal	Avenal	13,696	None found	9
Trabuco Canyon Water District	Trabuco Canyon	13,659	None found	0
City of Kingsburg	Kingsburg	13,540	None found	0
Westborough Water District	South San Francisco	13,486	None found	0
Tud - Upper Basin Water System	Sonora	13,280	None found	0
Palomar Christian Conference Center	Palomar Mountain	13,050	Not sampled	0
Indian Hills Camp	Jamul	13,032	Not sampled	11
Muscoy MWC No. 1	San Bernardino	13,000	None found	0
Sbdno County Service Area 70j	San Bernardino	12,843	None found	0
Yocha Dehe Potable Water System	Brooks	12,800	None found	0
Big Bear City CSD	Big Bear City	12,738	PFOA, PFOS, PFHxS, PFBS	0
City of Grover Beach Public Works Dept	Grover Beach	12,701	None found	0
City of Lindsay	Lindsay	12,659	PFOA, PFOS, PFBS	127
Camp Pendleton (North)	Camp Pendleton	12,651	None found	1
Los Angeles Cwwd 40, Reg. 38 - Lake la	Alhambra	12,568	None found	0
City of Dixon	Dixon	12,540	None found	0
Cal - Water Service Co. - Marysville	San Jose	12,419	None found	0
Sycuan	El Cajon	12,350	None found	0
City of Newman - Water Department	Newman	12,207	None found	1
Thermalito Water & Sewer Dist	Oroville	12,136	PFOS	1
City of Fortuna	Fortuna	12,133	None found	0
Montecito Water Dist	Santa Barbara	11,962	None found	0
Signal Hill - City, Water Dept.	Signal Hill	11,848	None found	5
Town of Hillsborough	Hillsborough	11,766	None found	0
City of Sonoma	Sonoma	11,725	PFOA	0
Crestline Village CWD - Division 10	Crestline	11,650	PFOA, PFOS, PFHxS, PFNA, PFBS	0
Greenfield County WD	Bakersfield	11,590	None found	14
Ccwd - Ebbetts Pass	San Andreas	11,545	None found	4
Los Angeles Cwwd 40, R 24,27,33 - Pearblsm	Alhambra	11,509	None found	0
City of Bell Gardens	Bell Gardens	11,437	PFOA, PFOS, PFHxS, PFBS	0
City of Mendota	Mendota	11,404	None found	0
Edwards AFB - Main Base	Edwards AFB	11,316	None found	1
Red Hawk Casino - Shingle Springs	Shingle Springs	11,268	None found	0
Scotts Valley Water District	Scotts Valley	11,197	None found	0
City of Exeter	Exeter	11,169	None found	1
City of Anderson	Anderson	11,147	None found	1
Cal - Water Service Co. - Oroville	San Jose	11,106	None found	0
Tud - Sonora/Jamestown Water System	Sonora	11,054	None found	0
Casitas Municipal Water Dist	Oak View	11,005	None found	1
Sierra Madre - City, Water Dept.	Sierra Madre	11,000	None found	0
Sonoma State University	Rohnert Park	10,986	None found	1
City of Healdsburg	Healdsburg	10,985	PFHxS, PFBS	0
Del Oro Water Co. - Paradise Pines	Chico	10,940	Not sampled	0
Gswc - Willowbrook	Anaheim	10,793	None found	0
Table Mountain Rancheria	Table Mountain	10,675	None found	6
California Institution for Men	Chino	10,667	None found	5
City of Shasta Lake	Shasta Lake 4510007	10,657	None found	0
California Water Service Co. - Dixon	San Jose	10,623	None found	0
City of Rio Vista	Rio Vista	10,489	None found	0
Plumas Lake	Olivehurst	10,464	None found	0
City of Cloverdale	Cloverdale	10,398	None found	0
City of Farmersville	Farmersville	10,243	None found	1
South Mesa WC	Calimesa	10,108	PFHxS, PFBS	0
SCWA - Arden Park Vista	Sacramento	10,101	PFOA, PFOS	1
Valley Water Co.	La Canada Flintridge	10,070	None found	0
Cal - Am Water Company - East Pasadena	Rosemead	9,949	None found	0
Lake Henshaw Resort Inc.	Santa Ysabel	9,913	Not sampled	1
Ccwd - Jenny Lind	San Andreas	9,861	None found	0
Golden Hills CSD	Tehachapi	9,857	PFOA, PFOS, PFHxS, PFBS	0
City of Blythe -	Blythe	9,798	None found	1
Winton Water & Sanitary Dist	Winton	9,745	None found	1
San Gabriel Valley Water Co - Montebello 1	El Monte	9,630	None found	0
Viejas Community System	Alpine	9,600	PFBS	0
City of Orange Cove	Orange Cove	9,525	None found	1
Myoma Dunes Mutual Water Company	Bermuda Dunes	9,445	None found	0
Georgetown Divide PUD	Georgetown	9,434	None found	0
City of Huron	Huron	9,306	None found	28
La Canada Irrigation Dist.	La Canada	9,300	None found	0
City of Live Oak	Live Oak	9,285	None found	0
California State Fair	Sacramento	9,280	PFOS, PFBS	0
Placerville, City of - Main	Placerville	9,224	None found	0
Rubio Canon Land & Water Association	Altadena	9,215	PFOA, PFOS, PFHxS, PFBS	0
Paradise Irrigation District	Paradise	9,142	None found	0
Nevada ID - Lake Wildwood	Grass Valley	9,108	None found	0
City of Tehachapi	Tehachapi	9,094	None found	1
Clear Creek CSD - Anderson	Anderson	8,900	None found	0
Guadalupe Water Department	Guadalupe	8,897	None found	0
Cal Am - West Placer	Sacramento	8,861	None found	0
Awa Buckhorn Plant	Sutter Creek	8,791	None found	1
City of Waterford	Modesto	8,788	None found	0
City of Needles	Needles	8,766	None found	0
Tract 349 Mutual Water Co.	Cudahy	8,700	PFOA, PFOS, PFHxS	0
Naval Base Ventura County, Port Hueneme	Point Mugu	8,625	Not sampled	0
City of Gonzales	Gonzales	8,327	None found	0
Orosi Public Utility District	Orosi	8,300	None found	0
City of Orland	Orland	8,298	None found	0
City of Corning	Corning	8,244	None found	0
La Puente Valley CWD	La Puente	8,243	None found	0
Mammoth CWD	Mammoth Lakes	8,234	None found	1
Gswc - Hollydale	Anaheim	8,099	None found	0
Firebaugh City	Firebaugh	8,096	None found	0
Pismo Beach Water Department	Pismo Beach	8,036	None found	3
Templeton CSD	Templeton	8,011	PFHxS, PFBS	0
California - American Larkfield (Puc)	Sacramento	7,913	None found	0
Kirkwood Meadows Public Utility District	Kirkwood	7,851	None found	0
City of Woodlake	Woodlake	7,846	None found	0
Florin County Water District	Sacramento	7,831	PFOA, PFOS, PFHxS	0
City of Yreka	Yreka	7,825	None found	1
City of Susanville	Susanville	7,811	None found	0
Delhi CWD	Delhi	7,784	PFOS, PFHxS	0
Valencia Heights Water Co.	West Covina	7,775	PFOA, PFOS, PFHxS, PFBS	0
Highlands Mutual Water Company	Clearlake	7,772	None found	4
Western Heights Water Company	Yucaipa	7,705	None found	0
Earlimart PUD	Earlimart	7,679	None found	1
Oceano Comm Services Dist.	Oceano	7,601	None found	0
City of Sebastopol	Sebastopol	7,522	None found	0
Castroville Community Services District	Castroville	7,515	None found	0
Folsom State Prison	Represa	7,502	PFOS	1
City of Hughson	Hughson	7,481	None found	38
City of Dos Palos	Dos Palos	7,452	None found	30
City of Fowler	Fowler	7,448	None found	0
City of Escalon	Escalon	7,429	None found	0
Gswc - Calipatria	San Dimas	7,363	None found	0
San Gabriel Valley Water Co - Montebello 2	Montebello	7,330	None found	0
Vandenberg Village Comm. Serv. Dist.	Lompoc	7,308	None found	0
City of Cotati	Cotati	7,303	None found	0
City of Gridley	Gridley	7,269	PFOS, PFHxS, PFNA	1
Cal - Water Service Co. - Willows	San Jose	7,240	None found	0
Awa, Ione	Jackson	7,227	None found	2
City of Winters	Winters	7,115	PFNA	0
Los Osos Community Services District	Los Osos	7,086	PFOA, PFOS, PFHxS, PFBS	0
Lake Arrowhead CSD	Lake Arrowhead	7,038	PFOA, PFOS, PFHxS, PFNA	0
Santa Ynez River Water Cons. Dist. Id#1	Santa Ynez	7,022	None found	0
Rincon Northern	Valley Center	7,003	PFOA, PFOS, PFBS	0
Peter Pitchess Honor Rancho Detn. Ctr	Castaic	7,000	PFOA, PFOS, PFHxS	0
Golden State WC - Cowan Heights	Anaheim	6,997	None found	0
Heber Public Utility District	Heber	6,979	None found	7
City of Fort Bragg	Fort Bragg	6,919	None found	1
Nevada ID - North Auburn	Grass Valley	6,870	None found	0
Nevada ID - Lake of Pines	Grass Valley	6,870	None found	0
Ojai Water System	Oak View	6,801	None found	0
Beale Air Force Base	Beale AFB	6,785	None found	1
Foresthill Public Utility Dist	Foresthill	6,782	None found	0
Nuevo Water Company	Nuevo	6,733	PFOA, PFOS, PFHxS	5
Joshua Basin Water District	Joshua Tree	6,640	None found	0
China Lake Naval Air Weapons Station	China Lake	6,600	None found	0
Psmcsd - Pajaro	Royal Oaks	6,500	None found	0
Madera Valley Water Company	Madera	6,494	None found	0
City of Colusa	Colusa	6,447	None found	0
Los Angeles Cwwd 36 - Val Verde	Alhambra	6,376	None found	0
City of Holtville	Holtville	6,355	None found	5
Maywood Mutual Water Co. #2	Maywood	6,349	PFOS	0
Helendale Community Service District	Helendale	6,347	PFOA, PFOS, PFHxS, PFBS	0
North Tahoe PUD - Main	Tahoe Vista	6,321	None found	0
Calaveras PUD	San Andreas	6,286	None found	0
Purissima Hills Water District	Los Altos Hills	6,245	None found	0
Hidden Valley Lake CSD	Hidden Valley Lake	6,235	None found	0
Golden State Water Co - Apple Vly South	Apple Valley	6,208	None found	0
Cutler PUD	Cutler	6,200	None found	5
City of Willits	Willits	6,175	None found	0
City of Industry Waterworks Systems	La Puente	6,158	None found	0
Solvang Water Division	Solvang	6,126	PFBS	0
City of Gustine	Gustine	6,110	None found	1
Ventura River Water District	Ojai	6,100	None found	3
Montara Water and Sanitary District	Montara	6,078	None found	0
Maywood Mutual Water Co. #3	Maywood	6,059	PFOA, PFOS, PFHxS	0
Sweetwater Springs CWD - Guerneville	Guerneville	6,000	None found	0
Lake Almanor Country Club MWC	Lake Almanor	6,000	None found	1
Bellflower Municipal Water System	Rosemead	5,999	PFOA, PFOS, PFHxS	0
Malaga County Water District	Fresno	5,979	None found	0
Konocti County Water District	Clearlake	5,928	None found	0
Golden State Water Company - Los Osos	Hawthorne	5,924	PFHxS, PFBS	0
Glen Helen Water System	San Bernardino	5,900	PFHxS, PFBS	0
Santa Ana River Water Company	Jurupa Valley	5,848	None found	0
San Joaquin County - Lincoln Village	Stockton	5,841	None found	0
Rancho Murieta Community Servi	Rancho Murieta	5,728	None found	1
Pauma	Pauma Valley	5,700	None found	0
Naval Base Ventura County, Point Mugu	Point Mugu	5,700	Not sampled	1
Keyes Community Services Dist.	Keyes	5,672	None found	17
Tahoe City PUD - Main	Tahoe City	5,661	None found	0
Serrano Water District	Villa Park	5,659	None found	0
Golden State Water Co - Arden Water Serv	Rancho Cordova	5,658	None found	0
Cal Am - Meadowbrook	Sacramento	5,656	PFOS	0
City of Calistoga	Calistoga	5,610	PFOA, PFOS	8
Bear Valley CSD	Tehachapi	5,592	PFOA	1
Cdcr California Health Care Facility	Stockton	5,551	Not sampled	3
City of Williams	Williams	5,538	None found	0
Cambria Comm Services Dist	Cambria	5,532	None found	2
Palm Ranch Irrigation Dist.	Quartz Hill	5,507	None found	0
Riverstone/Rootcreek Water District	Madera	5,507	Not sampled	1
Hilmar County Water District	Hilmar	5,504	None found	14
Millview County Water District	Ukiah	5,500	None found	0
Maywood Mutual Water Co. #1	Huntington Park	5,500	PFOS	0
Tud - Columbia Water System	Sonora	5,463	None found	0
City of St. Helena	St. Helena	5,386	None found	11
La Habra Heights CWD	La Habra Heights	5,325	PFOA, PFOS, PFHxS, PFBS	0
Yosemite Spring Park Util Co	Coarsegold	5,300	PFOA, PFOS, PFHxS, PFBS	13
Cwsc Salinas Hills	San Jose	5,293	None found	0
Running Springs Water District	Running Springs	5,268	PFOA, PFOS, PFHxS, PFBS	0
Suburban Water Systems - Glendora	Covina	5,249	None found	0
Redwood Valley County Water District	Ukiah	5,200	None found	0
Ccwd - Copper Cove	San Andreas	5,187	None found	0
City of Buellton Water Division	Buellton	5,161	None found	0
Wasco St. Prison Reception Ctr	Wasco	5,124	None found	0
California State Prison - Solano	Vacaville	5,100	None found	1
Denair Community Services District	Denair	5,090	None found	0
City of Jackson	Jackson	5,019	None found	1
Pleasant Valley Mutual Water Co	Camarillo	5,000	PFOA, PFOS, PFHxS	0
Kern Valley State Prison	Delano	5,000	None found	0
City of Grass Valley	Grass Valley	4,947	None found	0
Awa, Tanner	Sutter Creek	4,940	None found	0
Stallion Springs CSD	Tehachapi	4,910	None found	0
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
Presidio of San Francisco	San Francisco	3,500	PFOA, PFHxS, PFBS	0
Hoopa Valley - Wide System	Hoopa	3,500	None found	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 Joaquin River Club Inc	Tracy	600	None found	0
San Francisco Regional Water System	Burlingame	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. Data: EPA SDWIS 2026 Q2 and UCMR 5.