San Bernardino County, California Water Systems

San Bernardino County, California

242 community water systems on record — 147 active, 95 inactive.

Every active community water system nationwide must produce a Consumer Confidence Report under the EPA's revised rule, effective for reports due July 1, 2027.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace California’s official records. Always confirm current status with California before making decisions based on this information.

Community water systems in San Bernardino County, California

System name	City	Population served	Status
ADELANTO, CITY OF	ADELANTO	39,930	Active
AGUA FRIA MSC	BLUE JAY	368	Inactive
ALPINE WATER USERS ASSOCIATION	TWIN PEAKS	2,534	Active
APPLE VALLEY FOOTHILL CWD	APPLE VALLEY	811	Active
APPLE VALLEY HEIGHTS CWD	APPLE VALLEY	983	Active
APPLE VALLEY VIEW MWC	APPLE VALLEY	303	Active
APPLE VALLEY VILLAGE MHE	YORBA LINDA	180	Active
APPLE VALLEY WATER RESOURCES	APPLE VALLEY	158	Inactive
ARROWBEAR PARK CWD	ARROWBEAR LAKE	1,856	Active
ARROWHEAD HIGHLAND MUTUAL	LAKE GREGORY	420	Inactive
ARROWHEAD VILLAS MUTUAL SERVICE COMPANY	SKYFOREST	2,654	Active
BAKER COMMUNITY SERVICES DISTRICT	BAKER	1,000	Active
BALDY MESA COUNTY	VICTORVILLE	518	Inactive
BALDY MESA CWD - INACTIVE	Victorville	0	Inactive
BAR H MWC	LUCERNE VALLEY	260	Active
BAR-LEN MWC	BARSTOW	126	Active
BARSTOW-DAGGETT AIRPORT	Victorville	25	Inactive
BARTON FLATS WATER SYSTEM	ANGELUS OAKS	1,070	Active
BASELINE GARDENS MWC INACTIVATED 071614	SAN BERNARDINO	1,300	Inactive
BDVWA - GOAT MOUNTAIN ID	YUCCA VALLEY	1,118	Active
BEAR VALLEY MHP	APPLE VALLEY	150	Active
BERMUDA PALMS - BIA	EARP	333	Inactive
BIG BEAR CITY CSD	BIG BEAR CITY	12,738	Active
BIG BEAR LAKE DWP - BIG BEAR SYSTEM	BIG BEAR LAKE	26,132	Active
BIG BEAR MUNICIPAL WATER DIST	BIG BEAR LAKE	25	Inactive
BIG PINE TRACT	YUCAIPA	300	Active
BIGHORN - DESERT VIEW WATER AGENCY	YUCCA VALLEY	3,916	Active
BROOKINGS PIPELINE MUTUAL	RUNNING SPRINGS	58	Inactive
BROOKSIDE MHP	MENTONE	65	Active
Burlington Northern/Santa Fe RR Co	SAN BERNARDINO	25	Inactive
BURNT MILL CANYON MUTUAL WATER	LAKE ARROWHEAD	119	Inactive
BURNT MILL HEIGHTS WATER	LAKE ARROWHEAD	66	Inactive
CALICO LAKE HOMEOWNERS	HESPERIA	150	Active
CALIFORNIA INSTITUTION	FRONTERA	1,075	Inactive
CALIFORNIA INSTITUTION FOR MEN	CHINO	4,500	Inactive
CALIFORNIA INSTITUTION FOR MEN	CHINO	4,500	Inactive
CALIFORNIA INSTITUTION FOR MEN	CHINO	10,667	Active
CALIFORNIA INSTITUTION FOR WOM	FRONTERA	1,075	Inactive
CALIFORNIA INSTITUTION FOR WOMEN	CORONA	1,195	Active
CALIFORNIA REHABILITATION CENT	CORONA	3,400	Inactive
CAMP ANGELUS UPPER ROAD ASSOC	ANGELUS OAKS	56	Inactive
CAMP OAKES	BIG BEAR CITY	25	Inactive
CAMP WATERMAN MWC	WILLIAMS	55	Active
CARDIFF FARMS MUTUAL WATER	SAN BERNARDINO	25	Inactive
CDF - OAK GLEN CONSERVATION CAMP	YUCAIPA	83	Active
CDF - PILOT ROCK CONSERVATION CAMP	CRESTLINE	65	Active
CEDARPINES PARK MWC	CEDARPINES PARK	2,458	Active
CENTER WATER CO	LUCERNE VALLEY	662	Active
CHAMISAL MWC	ADELANTO	84	Active
CHEMHUEVI INDIAN TRIBE	HAVASU LAKE	123	Inactive
CHINO BASIN DESALTER AUTH. - DESALTER 1	ONTARIO	0	Active
CHINO BASIN MWD	RANCHO CUCAMONGA	300,000	Inactive
CHINO HILLS, CITY OF	CHINO HILLS	76,414	Active
CHINO, CITY OF	CHINO	86,435	Active
CITY OF FONTANA	FONTANA	0	Inactive
CLAWA	CRESTLINE	2,320	Active
CLAWA BLUE JAY RESORT SYSTEM	BLUE JAY	133	Inactive
CLAWA GREAT VIEW MWC FSSUP	LAKE GREGORY	80	Inactive
CLAWA HORSEHOE BEND CLUB FSSUP	ARROWHEAD HIGHLAN	161	Inactive
CLAWA ID B	CRESTLINE	0	Inactive
CLAWA IMPROVEMENT, DIST. C	CRESTLINE	0	Inactive
CLAWA LAKE ARROWHEAD CREST EST	CREST PARK	368	Inactive
CLIFTON HEIGHTS WATER & LAND	VLY OF ENCHANTMNT	84	Inactive
COLTON, CITY OF	COLTON	46,525	Active
CRESTLINE MOUNTAIN PARK	CRESTLINE	245	Inactive
CRESTLINE VILLAGE CWD - DIV 20	CRESTLINE	0	Inactive
CRESTLINE VILLAGE CWD - DIVISION 10	CRESTLINE	11,650	Active
CRYSTAL LAKE PROPERTY OWNERS	YERMO	186	Active
CSA 42 ORO GRANDE	SAN BERNARDINO	529	Active
CSA 70 W-3 HACIENDA	SAN BERNARDINO	611	Active
CSA 70 W-4 PIONEERTOWN	SAN BERNARDINO	470	Active
CSA 70-F MORONGO	SAN BERNARDINO	300	Active
CUCAMONGA VALLEY WATER DISTRICT	RANCHO CUCAMONGA	211,069	Active
CYA-INACTIVATED 20160108	CHINO	1	Inactive
DAGGETT COMM SVCS DIST	DAGGETT	795	Active
DEAD OAK WATER ASSOC - FSSUP	BARTON FLATS	52	Inactive
DEER LODGE WATER SYSTEM	LAKE ARROWHEAD CA 92352	845	Active
DEPARTMENT OF WATER AND POWER	BIG BEAR LAKE	239	Active
DESERT DAWN MWC	LUCERNE VALLEY	150	Active
DESERT SPRINGS MWC	LUCERNE VALLEY	325	Active
DESERT VIEW CWD	LANDERS	2,500	Inactive
DESERT VIEW MOBILE PARK	PINON HILLS	0	Inactive
DEVORE WC	DEVORE	1,574	Active
DOGWOOD BLUE JAY CYN IMP	BLUE JAY	232	Active
DWP - FAWNSKIN	BIG BEAR LAKE	1,271	Active
DWP - SUGARLOAF/ERWIN LAKE	BIG BEAR LAKE	3,422	Inactive
EAST COLTON HEIGHT	COLTON	84	Inactive
EAST VALLEY WATER DISTRICT	HIGHLAND	108,629	Active
EAST WOOD FARMS CWU	Redlands	665	Inactive
FALLS TRACT WATER ASSOC - FSSU	FOREST FALLS	25	Inactive
FALLSVALE SERVICE COMPANY	FOREST FALLS	1,046	Active
FEDERAL CORRECTIONAL INSTITUTION - INAC	ADELANTO	1	Inactive
FOOTHILL ESTATES MHP	BEVERLY HILLS	66	Active
FOREST PARK MWC	FOREST FALLS	406	Active
GILBERT STREET COMPLEX	SAN BERNARDINO	3,833	Active
GLEN HELEN WATER SYSTEM	SAN BERNARDINO	5,900	Active
GLEN MARTIN MUTUAL WATER	ANGELUS OAKS	25	Inactive
GLEN MARTIN MWC	ANGELUS OAKS	450	Active
Golden Pond RV/M Overland	ADELANTO	308	Inactive
GOLDEN STATE WATER CO - APPLE VLY NORTH	APPLE VALLEY	2,086	Active
GOLDEN STATE WATER CO - APPLE VLY SOUTH	APPLE VALLEY	6,208	Active
GOLDEN STATE WATER CO - BARSTOW	APPLE VALLEY	32,547	Active
GOLDEN STATE WATER CO - LUCERNE	APPLE VALLEY	586	Active
GOLDEN STATE WATER CO - MORONGO DEL SUR	APPLE VALLEY	1,717	Active
GOLDEN STATE WATER CO - WRIGHTWOOD	APPLE VALLEY	4,177	Active
GOLDEN STATE WATER DESERT VIEW	APPLE VALLEY	120	Active
GOLDEN STATE WATER MORONGO DELNORTE	SAN DIMAS	373	Active
GORDON ACRES WATER CO	LUCERNE VALLEY	200	Active
GREEN VALLEY MWC	GREEN VALLEY LAKE	2,993	Active
GREEN VALLEY PARK MWC	GREEN VALLEY CREE	178	Inactive
HAVASU PALMS INC-BIA	PARKER	273	Inactive
HAVASU WATER COMPNAY	HAVASU LAKE	140	Inactive
HAVASU WC	HAVASU LAKE	361	Inactive
HELENDALE COMMUNITY SERVICE DISTRICT	HELENDALE	6,347	Active
HESPERIA WD	HESPERIA	100,744	Active
HI DESERT MWC	BARSTOW	112	Active
HI DESERT WD	YUCCA VALLEY	26,411	Active
HIGH DESERT DETENTION CENTER	ADELANTO	3,035	Active
HILLCREST MOBILE ESTATES	LOS ANGELES	0	Inactive
INSLEE'S TRAILER PARK	LUCERNE VALLEY	95	Inactive
IRONWOOD CAMP	NEWBERRY SPRINGS	210	Active
JESS RANCH WATER COMPANY	APPLE VALLEY	25	Inactive
JIMMIE D BEAVER	ALTA LOMA	100	Inactive
JOSHUA BASIN WATER DISTRICT	JOSHUA TREE	6,640	Active
JUBILEE MWC	LUCERNE VALLEY	782	Active
JUNIPER RIVIERA CWD	APPLE VALLEY	858	Active
KNOLL ENTERPRISES	LUDLOW	500	Active
LACSD - RIMFOREST	LAKE ARROWHEAD	817	Active
LAKE ARROWHEAD CSD	LAKE ARROWHEAD	7,038	Active
LAKE JODIE WATER SYSTEM	WEST HOLLYHOOD	250	Active
LAKEVIEW WATER & IMPROV ASSN	BIG BEAR	147	Inactive
LANKERSHIM MUTUAL WELL	HIGHLAND	438	Inactive
LIBERTY -YERMO	DOWNEY	861	Active
LIBERTY UTILITIES (AV RANCHOS) CORP.	DOWNEY	64,469	Active
LIBERTY-BELLVIEW HEIGHTS	DOWNEY	155	Active
LITTLE BEAR CANYON MWIA	LAKE ARROWHEAD	52	Inactive
LITTLE BURNT WATER ASSOC	LAKE ARROWHEAD	52	Inactive
LOMA LINDA UNIVERSITY	LOMA LINDA	15,368	Active
LOMA LINDA, CITY OF	LOMA LINDA	25,129	Active
LUCERNE VALLEY MWC	LUCERNE VALLEY	228	Active
LUCERNE VISTA MWC	LUCERNE VALLEY	224	Active
LYTLE SPRINGS WC	LYTLE CREEK	475	Active
MARIANA RANCHOS CWD	APPLE VALLEY	1,502	Active
MARYGOLD MWC	BLOOMINGTON	3,055	Active
MICHAEL B MEZGER MWC	BARSTOW	25	Inactive
MIDWAY TRAILER PARK	BARSTOW	53	Inactive
MILL CREEK MSC	MENTONE	315	Active
MOJAVE WATER AGENCY	APPLE VALLEY	0	Active
MONTE VISTA WD	MONTCLAIR	56,017	Active
MONTECITO MUTUAL WATER COMPANY	SAN BERNARDINO	53	Inactive
MOSS MOBILE MANOR	LUCERNE VALLEY	290	Active
MP MINE OPERATIONS LLC	MOUNTAIN PASS	626	Active
MT BALDY HOMEOWNERS ASSN.	MT. BALDY	1,700	Active
MUSCOY MWC NO. 1	SAN BERNARDINO	13,000	Active
MWD OF SO CAL GENE PLANT	LA VERNE	135	Active
MWD OF SO CAL IRON MOUNTAIN	LA VERNE	36	Active
NAVAJO MWC	APPLE VALLEY	264	Active
NEEDLES, CITY OF	NEEDLES	8,766	Active
NORTH SHORE MWC	FAWNSKIN	7	Active
OAK GLEN DOMESTIC WATER	HEMET	180	Active
OAK GLEN RETREAT	YORBA LINDA	576	Active
OLIVE DELL RANCH	COLTON	350	Active
ONTARIO MUNICIPAL UTILITIES COMPANY	ONTARIO	185,010	Active
ORO GRANDE APARTMENTS	—	165	Inactive
PALMS RIVER RESORT	NEEDLES	531	Active
PARADISE MOBILE ESTATES	SAN JUAN CAPISTRANO	106	Active
PATTON STATE HOSPITAL	PATTON	1,200	Inactive
PATTON STATE HOSPITAL INACTIVATED 100709	Patton	2,500	Inactive
PHELAN PINON HILLS CSD	PHELAN	24,285	Active
PILOT ROCK CONSERVATION CAMP	CRESTLINE	100	Inactive
PILOT ROCK CONSERVATION CAMP	CRESTLINE	100	Inactive
RANCHERITOS #2	APPLE VALLEY	291	Active
RANCHERITOS MWC	APPLE VALLEY	487	Active
RANCHO DEL LAGO	APPLE VALLEY	711	Inactive
RANCHO PINO VERDE	LUCERNE VALLEY	66	Active
REDLANDS CITY MUD-WATER DIV	REDLANDS	78,025	Active
RIALTO, CITY OF	RIALTO	54,453	Active
RIVER LODGE TOO-BLM	PARKER DAM	77	Inactive
RIVER RANCH MHP	VICTORVILLE	176	Active
RIVER SHORE ESTATES-BIA	EARP	340	Inactive
RIVERSIDE HIGHLAND WATER COMPANY	GRAND TERRACE	20,188	Active
RIVERVIEW TRAILER PARK-BIA	EARP	298	Inactive
ROADRUNNER MHP	TUSTIN	150	Inactive
ROCKY COMFORT MUTUAL WATER CO	MENTONE	71	Active
RUNNING SPRINGS WATER DISTRICT	RUNNING SPRINGS	5,268	Active
SAMOA VILLAGE MOBILE HOME EST	ONTARIO	700	Inactive
SAN ANTONIO CANYON MSC	MT. BALDY	119	Active
SAN ANTONIO WATER COMPANY	UPLAND	3,441	Active
SAN BERNARDINO CITY	SAN BERNARDINO	214,665	Active
SAN BERNARDINO CO SERVICE AREA	VICTORVILLE	100	Inactive
SAN BERNARDINO CO WATER WORKS	CARBON CANYON	396	Inactive
SAN BERNARDINO MUN WAT UT CORP	SAN BERNARDINO	4,929	Inactive
SAN BERNARDINO VALLEY WD	SAN BERNARDINO	109,608	Active
SAN GABRIEL VALLEY WC - FONTANA	FONTANA	237,700	Active
SBDNO COUNTY SERVICE AREA 64	SAN BERNARDINO	14,911	Active
SBDNO COUNTY SERVICE AREA 70 CEDAR GLEN	SAN BERNARDINO	1,240	Active
SBDNO COUNTY SERVICE AREA 70J	SAN BERNARDINO	12,843	Active
SEARLES DOMESTIC WATER CO	TRONA	0	Inactive
SEARLES VALLEY MINERALS OPERATIONS INC	TRONA	1,818	Active
SHEEP CREEK WATER COMPANY	PHELAN	4,002	Active
SKY FOREST MWC	SKY FOREST	492	Active
SMILEY PARK COUNTRY CLUB	RUNNING SPRINGS	370	Active
SMITHSON SPRINGS WATER CO INC	PINON HILLS	441	Inactive
SNOWCREST HEIGHTS IMP ASSOC	MOUNT BALDY	600	Active
SO CAL WATER CO VICTORVILLE 1	HESPERIA	203	Inactive
SO CAL WATER CO VICTORVILLE 5	APPLE VALLEY	182	Inactive
SO CAL WATER CO VICTORVILLE 6	LUCERNE VALLEY	368	Inactive
SOUTH SAN BERNARDINO WATER DST	SAN BERNARDINO	633	Inactive
SOUTH SAN BERNARDINO-NORTH	SAN BERNARDINO	600	Inactive
STRAWBERRY LODGE MWC	TWIN PEAKS	381	Active
SULLIVAN MUTUAL WATER COMPANY	COLTON	245	Inactive
TERRACE WATER COMPANY	COLTON	2,400	Active
THUNDERBIRD CWD	APPLE VALLEY	2,098	Active
TWENTYNINE PALMS WATER DISTRICT	TWENTYNINE PALMS	18,795	Active
UPLAND, CITY OF	UPLAND	78,376	Active
UPPER LITTLE BEAR MOUNTAIN CLUB	BLUE JAY	101	Active
US ARMY FORT IRWIN	FORT IRWIN	15,701	Active
USAF GEORGE AFB	GEORGE AFB	0	Inactive
USMC - 29 PALMS	TWENTYNINE PALMS	15,248	Active
USMC NEBO (BARSTOW)	BARSTOW	1,126	Active
Vali-Hi Mobile Home Park	Hesperia	360	Inactive
VALLEY FARMS MUTUAL WATER CO	SAN BERNARDINO	424	Inactive
VALLEY OF ENCHANTMENT MWC	CRESTLINE	2,471	Active
VALLEY VIEW PARK MUTUAL WATER	CRESTLINE	676	Inactive
VALLEY VIEW PARK MWC	CRESTLINE	499	Active
VAN LOON MUTUAL WATER COMPANY	SAN BERNARDINO	542	Inactive
VICTORIA FARMS MWC	SAN BERNARDINO	0	Inactive
VICTORVILLE WATER DISTRICT	VICTORVILLE	135,983	Active
WATER FACILITIES AUTHORITY-JPA	UPLAND	0	Active
WEST END CONSOLIDATED WATER COMPANY	UPLAND	0	Active
WEST END MWC	LUCERNE VALLEY	90	Active
WEST VALLEY WATER DISTRICT	RIALTO	104,498	Active
WESTERN HEIGHTS WATER COMPANY	YUCAIPA	7,705	Active
WHEEL-ER INN TLR PARK-BIA	EARP	277	Inactive
YOUTH TRAINING SCHOOL	ONTARIO	1,800	Inactive
YOUTH TRAINING SCHOOL	ONTARIO	1,800	Inactive
YUCAIPA VALLEY CWD	YUCAIPA	25	Inactive
YUCAIPA VALLEY CWD ID-1	YUCAIPA	0	Inactive
YUCAIPA VALLEY WATER DISTRICT	YUCAIPA	52,010	Active
YUCCA WATER COMPANY LTD	YUCCA VALLEY	7,500	Inactive
Unnamed system (CA3600163)	ADELANTO	564	Inactive
Unnamed system (CA3600405)	NE PALMS 92277	42	Inactive