Orange County, California Water Systems

Orange County, California

116 community water systems on record — 40 active, 76 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 Orange County, California

System name	City	Population served	Status
ACACIA DRIVE WATER COMPANY	—	28	Inactive
AMERICANA MOBILE HOME PARK	WESTMINSTER	0	Inactive
BIT-O-HOME TRAILER PARK	Santa Ana	0	Inactive
BOLSA CHICA WATER COMPANY	ACH 92646	94	Inactive
BORDEN WATER COMPANY	80	25	Inactive
BOULEVARD GARDENS WATER CO	HUNTINGTON BEACH	140	Inactive
BOULEVARD GARDENS WATER CO	HUNTINGTON BEACH	150	Inactive
C 0 JOHN WERTIN DEVELOPMENT	IRVINE	60	Inactive
CARRY TRACT WATER ASSOC	HUNTINGTON BEACH	90	Inactive
CATALINA STREET PUMP OWNERS	SANTA ANA	150	Inactive
CITY OF ANAHEIM	ANAHEIM	348,593	Active
CITY OF BREA	BREA	48,479	Active
CITY OF BUENA PARK	BUENA PARK	81,998	Active
CITY OF FOUNTAIN VALLEY	FOUNTAIN VALLEY	56,747	Active
CITY OF FULLERTON	FULLERTON	139,461	Active
CITY OF GARDEN GROVE	GARDEN GROVE	174,226	Active
CITY OF HUNTINGTON BEACH	HUNTINGTON BEACH	201,000	Active
CITY OF LA HABRA	LA HABRA	63,118	Active
CITY OF LA PALMA	LA PALMA	15,948	Active
CITY OF NEWPORT BEACH	NEWPORT BEACH	68,572	Active
CITY OF ORANGE	ORANGE	120,770	Active
CITY OF SAN CLEMENTE	SAN CLEMENTE	51,545	Active
CITY OF SANTA ANA	SANTA ANA	310,539	Active
CITY OF SEAL BEACH	SEAL BEACH	24,937	Active
CITY OF TUSTIN	TUSTIN	66,600	Active
CITY OF WESTMINSTER	WESTMINSTER	90,911	Active
COMMUNITY WATER SUPPLY ASSN	LA PALMA	0	Inactive
CROSBY WATER SYSTEM	E 92640	25	Inactive
CRYSTAL WELLS APARTMENTS	E 92640	350	Inactive
CYPRESS ACRES WATER ASSOCIATIO	—	194	Inactive
DALEWOOD MUTUAL WATER ASSN	GARDEN GROVE	0	Inactive
DEL PRADO BOLSA MOBIL HOMES	655	400	Inactive
DIAMOND PARK MUTUAL WATER CO.	SANTA ANA	200	Inactive
E E KELLY PRES/E CLARK MAIN	CYPRESS	56	Inactive
EAST ORANGE COUNTY WD - RZ	ORANGE	3,464	Active
EAST ORANGE COUNTY WD - WZ	ORANGE	0	Active
EASTSIDE WATER ASSOCIATION	MIDWAY CITY	2,000	Active
EL TORO WATER DISTRICT	LAKE FOREST	51,800	Active
ELEANOR CUNNINGHAM, PRES	SANTA ANA	30	Inactive
ELLEN MC MAHON	HUNTINGTON BEACH	50	Inactive
EMERALD ISLE TRAILER PARK	GARDEN GROVE	160	Inactive
FAIRLANE MOBILE LODGE	92640	420	Inactive
FAIRLANE MOBILE LODGE - INACTIVE	Costa Mesa	0	Inactive
FOUNTAIN VALLEY	LAGUNA BEACH	0	Inactive
G F VANDERWALL	90620	20	Inactive
GARDEN GROVE ACRES01	GARDEN GROVE	220	Inactive
GARRETT APARTMENTS01	SANTA ANA	67	Inactive
GAY MUTUAL WATER CO INC	ANAHEIM	25	Inactive
GLENHAVEN MOBILODGE	GARDEN GROVE	275	Inactive
GOLDEN STATE WC - COWAN HEIGHTS	ANAHEIM	6,997	Active
GOLDEN STATE WC - PLACENTIA/YORBA LINDA	ANAHEIM	50,381	Active
GOLDEN STATE WC - WEST ORANGE COUNTY	ANAHEIM	114,379	Active
GOLDEN STATE WC - YORBA LINDA	ANAHEIM	5,551	Inactive
H E RAMEY PRES/W HART MAIN	GARDEN GROVE	270	Inactive
HALDOR PLACE MWC	BUENA PARK	0	Inactive
HANSON WATER COMPANY	4	25	Inactive
HOUSTON AVE WATER ASSOCIATION	MIDWAY CITY	0	Inactive
HYNES ESTATES MUTUAL WATER CO.	ANAHEIM	168	Active
IRVINE RANCH HEADQUARTERS	IRVINE	60	Inactive
IRVINE RANCH WATER DISTRICT	IRVINE	444,800	Active
IRVINE RANCH WATER DISTRICT-LLC	IRVINE	0	Inactive
IRVINE RANCH WATER DISTRICT-LOS ALISOS	IRVINE	0	Inactive
IRWD - SANTIAGO SYSTEM	Irvine	0	Inactive
JACK HALE, PRESIDENT	ORANGE	116	Inactive
JOE AGULAR	ACH 92647	42	Inactive
JOHN VAN RUITEN	GARDEN GROVE	75	Inactive
JOINT REGIONAL WATER SUPPLY SYSTEM	LAGUNA BEACH	3,947	Active
JUAN LOPEZ	—	400	Inactive
LAGUNA BEACH COUNTY WD	LAGUNA BEACH	18,404	Active
LAGUNA HILLS WATER CO	LAGUNA HILLS	47,842	Inactive
LEDA LANE MUTUAL WATER CO	GARDEN GROVE	0	Inactive
LIBERTY PARK WATER ASSOCIATION	HUNTINGTON BEACH	85	Active
LOLITA GARDENS	LONG BEACH	0	Inactive
MAGIC LAMP MOBILEHOME CLUB	San Dimas	0	Inactive
MELVIN GREEN	CH 92647	65	Inactive
MESA WATER DISTRICT	COSTA MESA	110,000	Active
MIDWAY CITY MUTUAL WC	WESTMINSTER	1,305	Active
MIDWAY TRAILER CITY	ANAHEIM	350	Inactive
MIDWAY TRAILER CITY	ANAHEIM	0	Inactive
MOORE MUTUAL WATER SYSTEM INC	HUNTINGTON BEACH	0	Inactive
MOULTON NIGUEL WATER DISTRICT	LAGUNA HILLS	170,236	Active
MUNICIPAL WATER DISTRICT OC	FOUNTAIN VALLEY	0	Inactive
MURRIETA M W C	—	178	Inactive
MWDOC-SOUTH ORANGE COUNTY OCEAN DESAL	FOUNTAIN VALLEY	3,300	Inactive
MYOMA DUNES MUTUAL WATER COMPA	S 92201	405	Inactive
Oceanview Mutual Water Co.	HUNTINGTON BEACH	50	Inactive
OLD PIRATE LANE WATER CO	HUNTINGTON BEACH	0	Inactive
ORANGE PARK ACRES MWC	Orange	0	Inactive
PAGE AVENUE MUTUAL WATER COMPANY	FULLERTON	119	Active
PARKVIEW MUTUAL WATER CO INC	HUNTINGTON BEACH	65	Inactive
PERALTA HILLS WATER CO	ANAHEIM	333	Inactive
RANCHO MISSION VIEJO	RANCHO SANTA MARGARITA	0	Inactive
ROBERT GARCIA	92640	56	Inactive
SANDRA WALL	MIDWAY CITY	650	Inactive
SANTA MARGARITA WATER DISTRICT	RANCHO SANTA MARGARITA	168,289	Active
SANTA MARGARITA WATER DISTRICT-ID9	RANCHO SANTA MARGARITA	39,684	Active
SANTIAGO MUTUAL WATER ASSOC	S 92669	21	Inactive
SAVANNA MUTUAL WATER CORP	ANAHEIM	45	Inactive
SEA AIRA MOBILE ESTATES	HUNTINGTON BEACH	0	Inactive
SERRANO WATER DISTRICT	VILLA PARK	5,659	Active
SMWD - SJ GROUND WATER PLANT	RANCHO SANTA MARGARITA	0	Active
SOUTH COAST WATER DISTRICT	LAGUNA BEACH	41,118	Active
SOUTH COAST WD - CAPISTRANO BEACH	LAGUNA BEACH	17,503	Inactive
SOUTH MAIN MUTUAL WTR CO INC	SANTA ANA	1,500	Inactive
SOUTH MIDWAY CITY MUTUAL WATER CO.	HUNTINGTON BEACH	891	Active
SOUTHERN CALIF WC - LEMON HGHT	SAN DIMAS	0	Inactive
TAORMINA DRIVE WATER SUPPLY	ANAHEIM	30	Inactive
TOWN & COUNTRY VILLA	SANTA ANA	0	Inactive
TRABUCO CANYON WATER DISTRICT	TRABUCO CANYON	13,659	Active
TRACT 1322 WATER SYSTEM INC	ANAHEIM	0	Inactive
USN NAVAL WEAPONS STATION	SEAL BEACH	0	Inactive
VILLA CAPRI MOBILE ESTATES	Garden Grove	450	Inactive
WEST CATHERINE STREET MUTUAL W	GARDEN GROVE	35	Inactive
WHITAKER WATER	—	25	Inactive
WINTERSBURG COMMUNITY	HUNTINGTON BEACH	98	Inactive
YORBA LINDA WATER DISTRICT	PLACENTIA	84,292	Active