Large Systems in California

137 large systems in California, ranked by infrastructure stress score.

Community water systems serving more than 100,000 people. Large systems typically have more organizational capacity and diversified revenue streams, but face correspondingly larger capital replacement needs and regulatory complexity.

SystemPop. ServedMISIBand

LOS ANGELES-CITY, DEPT. OF WATER & POWER3.9M37.877Watch

EAST BAY MUD1.4M34.589Watch

SAN DIEGO, CITY OF1.4M22.936Watch

SAN JOSE WATER COMPANY1.0M40.023Fragile

SFPUC CITY DISTRIBUTION DIVISION848K42.049Fragile

EASTERN MUNICIPAL WD667K22.605Watch

CITY OF FRESNO546K31.192Watch

CITY OF SACRAMENTO MAIN520K31.192Watch

LONG BEACH-CITY, WATER DEPT.467K37.113Watch

IRVINE RANCH WATER DISTRICT445K46.510Fragile

CITY OF ANAHEIM349K41.899Fragile

ALAMEDA COUNTY WATER DISTRICT344K30.924Watch

CITY OF SANTA ANA311K36.713Watch

SACRAMENTO CITY-DIV WTR & SWR310K7.988Stable

CHINO BASIN MWD300K16.665Stable

RIVERSIDE, CITY OF298K20.688Watch

SANTA CLARITA WATER DIVISION F294K29.414Watch

GSWC - SOUTHWEST278K29.414Watch

HELIX WATER DISTRICT278K26.682Watch

COACHELLA VWD: COVE COMMUNITY270K26.434Watch

CWS - BAKERSFIELD268K26.682Watch

SAN GABRIEL VALLEY WATER CO.-EL MONTE248K38.340Watch

OTAY WATER DISTRICT238K22.936Watch

SAN GABRIEL VALLEY WC - FONTANA238K18.684Stable

MODESTO, CITY OF219K26.682Watch

SAN BERNARDINO CITY215K24.682Watch

CUCAMONGA VALLEY WATER DISTRICT211K18.684Stable

CITY OF HUNTINGTON BEACH201K29.097Watch

OXNARD WATER DEPT200K30.345Watch

CONTRA COSTA WATER DISTRICT198K32.839Watch

SACRAMENTO SUBURBAN WATER DISTRICT194K31.192Watch

CITY OF STOCKTON191K31.821Watch

SWEETWATER AUTHORITY191K26.682Watch

GLENDALE-CITY, WATER DEPT.189K34.991Watch

MARIN MUNICIPAL WATER DISTRICT187K11.154Stable

ONTARIO MUNICIPAL UTILITIES COMPANY185K29.596Watch

SCWA - LAGUNA/VINEYARD185K35.608Watch

CALIFORNIA WATER SERVICE - STOCKTON176K20.688Watch

SANTA ROSA, CITY OF175K26.769Watch

CITY OF GARDEN GROVE174K32.843Watch

OCEANSIDE, CITY OF171K31.192Watch

MOULTON NIGUEL WATER DISTRICT170K36.589Watch

ELSINORE VALLEY MWD169K30.861Watch

SUBURBAN WATER SYSTEMS-SAN JOSE F169K34.618Watch

CORONA, CITY OF169K43.898Fragile

SANTA MARGARITA WATER DISTRICT168K32.843Watch

PASADENA-CITY, WATER DEPT.164K37.587Watch

CITY OF HAYWARD163K22.930Watch

BAKERSFIELD, CITY OF160K30.428Watch

CITY OF SUNNYVALE158K32.025Watch

CITY OF ROSEVILLE156K24.666Watch

CALIFORNIA WATER SERVICE CO. - ELA F152K25.668Watch

POMONA - CITY, WATER DEPT.152K32.411Watch

CWS - VISALIA148K28.345Watch

RANCHO CALIFORNIA WATER DISTRICT146K26.434Watch

CALIFORNIA WATER SERVICE CO. - DOMINGUEZ144K29.414Watch

CITY OF FULLERTON139K36.713Watch

ESCONDIDO, CITY OF137K22.936Watch

VICTORVILLE WATER DISTRICT136K26.682Watch

JURUPA COMMUNITY SD135K14.396Stable

VISTA IRRIGATION DISTRICT132K30.345Watch

EL DORADO ID - MAIN132K34.571Watch

CITY OF SANTA CLARA131K34.094Watch

CITY OF CLOVIS130K24.682Watch

PALMDALE WATER DIST.127K23.668Watch

CWSC SALINAS124K22.936Watch

CITY OF VALLEJO121K21.684Watch

CITY OF ORANGE121K29.097Watch

CITY OF FAIRFIELD120K27.613Watch

CITY OF ANTIOCH115K30.841Watch

CAL-WATER SERVICE CO.-CHICO115K31.392Watch

GOLDEN STATE WC - WEST ORANGE114K29.097Watch

VENTURA WATER DEPARTMENT114K30.428Watch

VALLECITOS WD114K30.635Watch

GREAT OAKS WC, INC.110K37.091Watch

AZUSA LIGHT AND WATER110K23.668Watch

MESA WATER DISTRICT110K29.097Watch

SANTA MARIA WATER DEPARTMENT109K18.942Stable

DOWNEY - CITY, WATER DEPT.109K28.665Watch

EAST VALLEY WATER DISTRICT109K35.145Watch

TORRANCE-CITY, WATER DEPT.106K33.662Watch

CALIFORNIA-AMERICAN WATER CO106K30.592Watch

BURBANK-CITY, WATER DEPT.106K29.452Watch

CITY OF DALY CITY105K33.662Watch

WEST VALLEY WATER DISTRICT104K22.384Watch

CALIFORNIA WATER SERVICE - SAN MATEO102K25.664Watch

CITY OF SAN JOSE - EVG/EDV/COY101K25.351Watch

WALNUT VALLEY WATER DISTRICT101K25.668Watch

HESPERIA WD101K27.184Watch

SOUTH TAHOE PUD - MAIN100K29.331Watch

BARTLETT PARK66K14.855Stable

PRAIRIE CITY SVRA18K7.988Stable

Pechanga18K7.988Stable

Pala North14K7.988Stable

Viejas Community System12K7.988Stable

Morongo11K7.198Stable

SHASTA DISTRICT FAIR10K3.956Stable

CALTRANS, WHITEWATER REST AREA10K7.198Stable

Green Valley Campground10K7.988Stable

Cache Creek Casino Resort10K7.988Stable

GIBSON RANCH COUNTY PARK10K7.988Stable

EBRPD - DEL VALLE REGIONAL PARK10K17.353Stable

BUTTE-GLENN COMMUNITY COLLEGE DIST10K18.634Stable

Graton Resort and Casino10K5.464Stable

Santa Rosa Tachi Palace9K7.988Stable

Sycuan9K7.988Stable

RANCHO MARIA GOLF CLUB INC9K7.198Stable

DEPARTMENT OF TRANSPORTATION9K7.988Stable

Red Hawk Casino - Shingle Springs9K15.337Stable

Barona9K7.988Stable

Chukchansi Gold Resort & Casino8K7.198Stable

Cabazon Water Dist. - Attn: Calvin Louie7K7.198Stable

Thunder Valley Casino7K3.956Stable

CALTRANS, CACTUS CITY REST AREA7K7.198Stable

Rincon Northern6K7.988Stable

CAL TRANS ERRECA REST AREA6K14.855Stable

Table Mountain Rancheria & Casino6K7.988Stable

IMPERIAL VALLEY COLLEGE6K7.988Stable

Pauma6K7.988Stable

CABRILLO COLLEGE6K12.790Stable

CHERRY AUCTION5K7.988Stable

FAMOSO RACEWAY, SMOKERS INC.5K7.988Stable

Centro Medico Oasis5K7.198Stable

SACRAMENTO INTERNATIONAL AIRPORT [SWS]5K7.988Stable

WILLOW SPRINGS RACEWAY5K7.988Stable

GAVILAN JR. COLLEGE5K17.353Stable

Soboba5K7.198Stable

WM. S. HART HIGH / PLACERITA JR HIGH SCH4K13.452Stable

CALTRANS, BROOKSIDE REST AREA4K7.198Stable

CACHUMA LAKE COUNTY PARK4K7.198Stable

MONTECITO LAKE RESORT4K14.855Stable

JALAMA BEACH PARK4K7.198Stable

YOSEMITE NPS - MARIPOSA GROVE4K7.198Stable

CSP-SALT POINT STATE PARK4K5.464Stable

CALTRANS-LAKEHEAD SRRA4K3.956Stable

CSP-FORT ROSS STATE PARK4K5.464Stable

PARAMOUNT FARMS - HWY 33 FACILITY3K7.988Stable