Lead pipes in California cities and towns
Find your city to see which water system serves it and how many lead service lines that system reported. 467 California cities and towns with 1,000+ residents.
| City | Water system | Lead + galv. | Unknown |
|---|---|---|---|
| Adelanto | City of Adelanto | 0 | 0 |
| Agoura Hills | Las Virgenes MWD | 0 | 0 |
| Alameda | East Bay MUD | 3,935 | 0 |
| Albany | East Bay MUD | 3,935 | 0 |
| Alhambra | City of Alhambra | 0 | 0 |
| Aliso Viejo | Moulton Niguel Water District | 0 | 0 |
| Alturas | City of Alturas | 0 | 1,365 |
| American Canyon | City of American Canyon | 0 | 0 |
| Anaheim | City of Anaheim | 0 | 0 |
| Anderson | City of Anderson | 0 | 0 |
| Angels | City of Angels | 0 | 0 |
| Antioch | City of Antioch | 0 | 0 |
| Apple Valley | Liberty Utilities (Av Ranchos) Corp. | 0 | 0 |
| Arcadia | City of Arcadia | 0 | 0 |
| Arcata | City of Arcata | 9 | 3,572 |
| Arroyo Grande | City of Arroyo Grande Utilities Division | 0 | 0 |
| Artesia | GSWC - Artesia | 0 | 0 |
| Arvin | Arvin Community Services Dist | 20 | 1,906 |
| Atascadero | Atascadero Mutual Water Co | 0 | 0 |
| Atherton | California Water Service - Bear Gulch | 0 | 0 |
| Atwater | City of Atwater | 0 | 0 |
| Auburn | Placer Cwa - Auburn/Bowman | 0 | 3,132 |
| Avalon | So. Cal. Edison Co.-Santa Catalina | 0 | 0 |
| Avenal | City of Avenal | 0 | 0 |
| Azusa | Azusa Light and Water | 0 | 0 |
| Bakersfield | CWS - Bakersfield | 0 | 52,060 |
| Baldwin Park | Valley County Water Dist. | 0 | 0 |
| Banning | City of Banning | 0 | 0 |
| Barstow | Golden State Water Co - Barstow | 0 | 0 |
| Beaumont | Eastern Municipal WD | 0 | 0 |
| Bell | Maywood Mutual Water Co. #3 | 0 | 0 |
| Bell Gardens | GSWC - Bell, Bell Gardens | 0 | 0 |
| Bellflower | Bellflower - Somerset MWC | 0 | 0 |
| Belmont | Mid-Peninsula Water District | 0 | 0 |
| Belvedere | Marin Municipal Water District | 0 | 0 |
| Benicia | City of Benicia | 10 | 0 |
| Berkeley | East Bay MUD | 3,935 | 0 |
| Beverly Hills | Beverly Hills-City, Water Dept. | 0 | 0 |
| Big Bear Lake | Big Bear Lake DWP - Big Bear System | 0 | 0 |
| Biggs | City of Biggs | 0 | 538 |
| Bishop | City of Bishop | 0 | 1,220 |
| Blue Lake | City of Blue Lake | 0 | 0 |
| Blythe | City of Blythe | 0 | 0 |
| Brawley | City of Brawley | 0 | 5,962 |
| Brea | City of Brea | 0 | 0 |
| Brentwood | Brentwood | 0 | 0 |
| Brisbane | City of Brisbane | 0 | 0 |
| Buellton | City of Buellton Water Division | 0 | 0 |
| Buena Park | City of Buena Park | 0 | 0 |
| Burbank | Burbank-City, Water Dept. | 0 | 0 |
| Burlingame | City of Burlingame | 0 | 0 |
| Calabasas | Las Virgenes MWD | 0 | 0 |
| Calexico | City of Calexico | 0 | 0 |
| California | City of California City | 0 | 1,788 |
| Calimesa | Yucaipa Valley Water District | 0 | 0 |
| Calipatria | Calipatria State Prison | 0 | 0 |
| Calistoga | City of Calistoga | 0 | 0 |
| Camarillo | Camarillo Water Dept | 0 | 0 |
| Campbell | San Jose Water | 0 | 0 |
| Canyon Lake | Elsinore Valley MWD | 0 | 0 |
| Capitola | Soquel Creek Water District | 0 | 0 |
| Carlsbad | Carlsbad MWD | 0 | 0 |
| Carmel-by-the-Sea | Cal Am Water Company - Monterey | 0 | 0 |
| Carpinteria | Carpinteria Valley Water District | 0 | 0 |
| Carson | California Water Service Co. - Dominguez | 0 | 31,869 |
| Cathedral | Coachella VWD: Cove Community | 0 | 0 |
| Ceres | City of Ceres | 177 | 5,076 |
| Cerritos | Cerritos - City, Water Dept. | 0 | 0 |
| Chico | Cal-Water Service Co.-Chico | 0 | 19,384 |
| Chino | City of Chino | 872 | 0 |
| Chino Hills | City of Chino Hills | 0 | 0 |
| Chowchilla | Chowchilla City Water Dept | 0 | 0 |
| Chula Vista | Otay Water District | 0 | 0 |
| Citrus Heights | Citrus Heights Water District | 0 | 0 |
| Claremont | GSWC - Claremont | 0 | 0 |
| Clayton | Contra Costa Water District | 0 | 0 |
| Clearlake | Highlands Mutual Water Company | 0 | 0 |
| Cloverdale | City of Cloverdale | 0 | 1,461 |
| Clovis | City of Clovis | 0 | 0 |
| Coachella | Coachella Water Authority | 0 | 0 |
| Coalinga | Coalinga-City | 0 | 0 |
| Colfax | Placer Cwa - Colfax | 0 | 316 |
| Colma | California Water Service-S San Francisco | 0 | 15,446 |
| Colton | City of Colton | 0 | 0 |
| Colusa | City of Colusa | 0 | 0 |
| Commerce | Commerce-City, Water Dept. | 0 | 1,191 |
| Compton | Compton-City, Water Dept. | 0 | 0 |
| Concord | Contra Costa Water District | 0 | 0 |
| Corcoran | City of Corcoran | 0 | 0 |
| Corning | City of Corning | 0 | 1,859 |
| Corona | City of Corona | 0 | 0 |
| Coronado | Cal-Am Water Coronado | 0 | 0 |
| Corte Madera | Marin Municipal Water District | 0 | 0 |
| Costa Mesa | Mesa Water District | 0 | 0 |
| Cotati | City of Cotati | 0 | 0 |
| Covina | Covina-City, Water Dept. | 0 | 0 |
| Crescent | City of Crescent City | 0 | 0 |
| Cudahy | Tract 180 Mutual Water Co. | 0 | 0 |
| Culver | GSWC - Culver City | 0 | 0 |
| Cupertino | City of Cupertino | 0 | 0 |
| Cypress | Golden State WC - West Orange County | 0 | 0 |
| Daly | City of Daly City | 0 | 0 |
| Dana Point | South Coast Water District | 0 | 0 |
| Danville | East Bay MUD | 3,935 | 0 |
| Davis | City of Davis | 0 | 10,076 |
| Del Mar | City of Del Mar | 0 | 0 |
| Del Rey Oaks | Marina Coast Water District | 0 | 0 |
| Delano | City of Delano | 0 | 0 |
| Desert Hot Springs | Mission Springs WD | 0 | 0 |
| Diamond Bar | Walnut Valley Water District | 0 | 0 |
| Dinuba | City of Dinuba | 0 | 0 |
| Dixon | California Water Service Co. - Dixon | 0 | 2,649 |
| Dos Palos | City of Dos Palos | 0 | 0 |
| Downey | Downey - City, Water Dept. | 0 | 0 |
| Duarte | Cal-Am Water Company - Duarte | 0 | 0 |
| Dublin | Dublin San Ramon Services District | 0 | 0 |
| Dunsmuir | City of Dunsmuir | 0 | 1,284 |
| East Palo Alto | City of East Palo Alto | 0 | 0 |
| Eastvale | Jurupa Community SD | 0 | 0 |
| El Cajon | Helix Water District | 0 | 0 |
| El Centro | City of El Centro | 0 | 0 |
| El Cerrito | East Bay MUD | 3,935 | 0 |
| El Monte | El Monte-City, Water Dept. | 0 | 0 |
| El Paso de Robles (Paso Robles) | City of Paso Robles Water Division | 0 | 0 |
| El Segundo | El Segundo-City, Water Dept. | 145 | 179 |
| Elk Grove | Elk Grove Water District | 0 | 0 |
| Emeryville | East Bay MUD | 3,935 | 0 |
| Encinitas | Olivenhain MWD | 0 | 0 |
| Escalon | City of Escalon | 0 | 0 |
| Escondido | City of Escondido | 0 | 0 |
| Eureka | City of Eureka | 0 | 0 |
| Exeter | City of Exeter | 0 | 0 |
| Fairfax | Marin Municipal Water District | 0 | 0 |
| Fairfield | City of Fairfield | 91 | 0 |
| Farmersville | City of Farmersville | 0 | 0 |
| Ferndale | Del Oro Water Co-Ferndale | 0 | 0 |
| Fillmore | Fillmore Water Dept | 0 | 0 |
| Firebaugh | Firebaugh City | 0 | 0 |
| Folsom | Folsom, City of - Main | 5 | 4,413 |
| Fontana | San Gabriel Valley WC - Fontana | 0 | 0 |
| Fort Bragg | City of Fort Bragg | 0 | 0 |
| Fortuna | City of Fortuna | 0 | 0 |
| Foster | Estero Municipal Improvement District | 0 | 0 |
| Fountain Valley | City of Fountain Valley | 0 | 0 |
| Fowler | City of Fowler | 0 | 0 |
| Fremont | Alameda County Water District | 0 | 146 |
| Fresno | City of Fresno | 0 | 0 |
| Fullerton | City of Fullerton | 0 | 0 |
| Galt | City of Galt | 0 | 0 |
| Garden Grove | City of Garden Grove | 0 | 0 |
| Gardena | GSWC - Southwest | 0 | 0 |
| Gilroy | City of Gilroy | 0 | 0 |
| Glendale | Glendale-City, Water Dept. | 0 | 0 |
| Glendora | Glendora-City, Water Dept. | 0 | 0 |
| Goleta | Goleta Water District | 0 | 0 |
| Gonzales | City of Gonzales | 122 | 0 |
| Grand Terrace | Riverside Highland Water Company | 0 | 0 |
| Grass Valley | Nevada ID - E. George, Banner Mountain | 0 | 4,028 |
| Greenfield | City of Greenfield | 144 | 5 |
| Gridley | City of Gridley | 0 | 2,349 |
| Grover Beach | City of Grover Beach Public Works Dept | 0 | 0 |
| Guadalupe | Guadalupe Water Department | 9 | 0 |
| Gustine | City of Gustine | 0 | 0 |
| Half Moon Bay | Coastside County Water District | 0 | 0 |
| Hanford | City of Hanford | 17 | 0 |
| Hawaiian Gardens | GSWC - Artesia | 0 | 0 |
| Hawthorne | Hawthorne-City Water Dept. | 0 | 0 |
| Hayward | City of Hayward | 0 | 0 |
| Healdsburg | City of Healdsburg | 0 | 0 |
| Hemet | City of Hemet | 0 | 0 |
| Hercules | East Bay MUD | 3,935 | 0 |
| Hermosa Beach | California Water Service Co. - Herm/Redo | 0 | 24,355 |
| Hesperia | Hesperia WD | 0 | 0 |
| Hidden Hills | Las Virgenes MWD | 0 | 0 |
| Highland | East Valley Water District | 0 | 0 |
| Hillsborough | Town of Hillsborough | 0 | 0 |
| Hollister | City of Hollister | 0 | 0 |
| Holtville | City of Holtville | 0 | 0 |
| Hughson | City of Hughson | 0 | 0 |
| Huntington Beach | City of Huntington Beach | 0 | 0 |
| Huntington Park | Huntington Park-City, Water Dept. | 0 | 0 |
| Huron | City of Huron | 0 | 1,027 |
| Imperial | City of Imperial | 0 | 7,143 |
| Imperial Beach | Cal-Am Water Coronado | 0 | 0 |
| Indian Wells | Coachella VWD: Cove Community | 0 | 0 |
| Indio | Indio Water Authority | 0 | 0 |
| Inglewood | Inglewood- City, Water Dept. | 0 | 0 |
| Ione | Awa, Ione | 0 | 89 |
| Irvine | Irvine Ranch Water District | 0 | 0 |
| Irwindale | Valley County Water Dist. | 0 | 0 |
| Jackson | City of Jackson | 0 | 0 |
| Jurupa Valley | Jurupa Community SD | 0 | 0 |
| Kerman | City of Kerman | 0 | 0 |
| King | CWSC King City | 0 | 0 |
| Kingsburg | City of Kingsburg | 0 | 0 |
| La Cañada Flintridge | Valley Water Co. | 0 | 0 |
| La Habra | City of la Habra | 0 | 0 |
| La Habra Heights | La Habra Heights CWD | 0 | 0 |
| La Mesa | Helix Water District | 0 | 0 |
| La Mirada | Suburban Water Systems-La Mirada | 0 | 0 |
| La Palma | City of la Palma | 0 | 0 |
| La Puente | Suburban Water Systems-San Jose | 0 | 0 |
| La Quinta | Coachella VWD: Cove Community | 0 | 0 |
| La Verne | La Verne, City WD | 0 | 0 |
| Lafayette | East Bay MUD | 3,935 | 0 |
| Laguna Beach | Laguna Beach County WD | 0 | 0 |
| Laguna Hills | Moulton Niguel Water District | 0 | 0 |
| Laguna Niguel | Moulton Niguel Water District | 0 | 0 |
| Laguna Woods | El Toro Water District | 0 | 0 |
| Lake Elsinore | Elsinore Valley MWD | 0 | 0 |
| Lake Forest | Irvine Ranch Water District | 0 | 0 |
| Lakeport | City of Lakeport | 0 | 0 |
| Lakewood | Lakewood - City, Water Dept. | 0 | 0 |
| Lancaster | Los Angeles CWWD 40 Reg 4 & 34 Lancaster | 0 | 0 |
| Larkspur | Marin Municipal Water District | 0 | 0 |
| Lathrop | San Joaquin County-Mokelumne Acres | 0 | 0 |
| Lawndale | GSWC - Southwest | 0 | 0 |
| Lemon Grove | Helix Water District | 0 | 0 |
| Lemoore | City of Lemoore | 25 | 907 |
| Lincoln | City of Lincoln | 0 | 0 |
| Lindsay | City of Lindsay | 0 | 0 |
| Live Oak | City of Live Oak | 0 | 245 |
| Livermore | California Water Service - Livermore | 0 | 14,400 |
| Livingston | City of Livingston | 0 | 3,589 |
| Lodi | City of Lodi | 0 | 0 |
| Loma Linda | City of Loma Linda | 0 | 0 |
| Lomita | Lomita-City, Water Dept. | 0 | 0 |
| Lompoc | Lompoc-City Water Utility Div | 0 | 0 |
| Long Beach | Long Beach Utilities Department | 0 | 0 |
| Loomis | Placer Cwa - Foothill | 0 | 6,585 |
| Los Alamitos | Golden State WC - West Orange County | 0 | 0 |
| Los Altos | CWSC Los Altos Suburban | 0 | 0 |
| Los Altos Hills | Purissima Hills Water District | 0 | 0 |
| Los Angeles | Los Angeles-City, Dept. of Water & Power | 0 | 0 |
| Los Banos | City of Los Banos | 0 | 0 |
| Los Gatos | San Jose Water | 0 | 0 |
| Lynwood | Lynwood-City, Water Dept. | 12 | 51 |
| Madera | City of Madera | 0 | 0 |
| Malibu | Los Angeles CWWD 29 & 80-Malibu | 0 | 0 |
| Mammoth Lakes | Mammoth CWD | 0 | 2,218 |
| Manhattan Beach | Manhattan Beach-City, Water Dept. | 0 | 0 |
| Manteca | City of Manteca | 0 | 0 |
| Maricopa | West Kern Water District | 0 | 0 |
| Marina | Marina Coast Water District | 0 | 0 |
| Martinez | City of Martinez | 0 | 0 |
| Marysville | Cal-Water Service Co.-Marysville | 0 | 3,542 |
| Maywood | Maywood Mutual Water Co. #3 | 0 | 0 |
| McFarland | City of McFarland | 0 | 0 |
| Mendota | City of Mendota | 0 | 0 |
| Menifee | Eastern Municipal WD | 0 | 0 |
| Menlo Park | City of East Palo Alto | 0 | 0 |
| Merced | City of Merced | 0 | 0 |
| Mill Valley | Marin Municipal Water District | 0 | 0 |
| Millbrae | City of Millbrae | 0 | 0 |
| Milpitas | City of Milpitas | 0 | 0 |
| Mission Viejo | Moulton Niguel Water District | 0 | 0 |
| Modesto | City of Modesto | 0 | 0 |
| Monrovia | Monrovia-City, Water Dept. | 0 | 0 |
| Montague | City of Montague | 0 | 538 |
| Montclair | Monte Vista WD | 0 | 0 |
| Monte Sereno | San Jose Water | 0 | 0 |
| Montebello | Montebello Land & Water Co. | 0 | 0 |
| Monterey | Cal Am Water Company - Monterey | 0 | 0 |
| Monterey Park | Monterey Park-City, Water Dept. | 0 | 12,178 |
| Moorpark | Ventura CWWD No. 1 - Moorpark | 0 | 0 |
| Moraga | East Bay MUD | 3,935 | 0 |
| Moreno Valley | Eastern Municipal WD | 0 | 0 |
| Morgan Hill | City of Morgan Hill | 0 | 0 |
| Morro Bay | Morro Bay PW Dept - Water Division | 0 | 0 |
| Mount Shasta | City of Mt. Shasta | 0 | 0 |
| Mountain View | City of Mountain View | 0 | 0 |
| Murrieta | Eastern Municipal WD | 0 | 0 |
| Napa | City of Napa | 0 | 0 |
| National | Sweetwater Authority | 0 | 0 |
| Needles | City of Needles | 0 | 0 |
| Nevada | Nevada ID - E. George, Banner Mountain | 0 | 4,028 |
| Newark | Alameda County Water District | 0 | 146 |
| Newman | City of Newman-Water Department | 0 | 0 |
| Newport Beach | City of Newport Beach | 0 | 0 |
| Norco | City of Norco | 0 | 0 |
| Norwalk | Liberty Utilities - Bellflower-Norwalk | 0 | 0 |
| Novato | North Marin Water District | 0 | 0 |
| Oakdale | City of Oakdale | 176 | 0 |
| Oakland | East Bay MUD | 3,935 | 0 |
| Oakley | Diablo Water District | 0 | 0 |
| Oceanside | City of Oceanside | 0 | 0 |
| Ojai | Ojai Water System | 0 | 0 |
| Ontario | Ontario Municipal Utilities Company | 0 | 0 |
| Orange | City of Orange | 0 | 0 |
| Orange Cove | City of Orange Cove | 0 | 1,779 |
| Orinda | East Bay MUD | 3,935 | 0 |
| Orland | City of Orland | 0 | 773 |
| Oroville | Cal-Water Service Co.-Oroville | 0 | 3,879 |
| Oxnard | Oxnard Water Dept | 0 | 0 |
| Pacific Grove | Cal Am Water Company - Monterey | 0 | 0 |
| Pacifica | North Coast County Water Dist | 0 | 0 |
| Palm Desert | Coachella VWD: Cove Community | 0 | 0 |
| Palm Springs | Desert Water Agency | 0 | 0 |
| Palmdale | Palmdale Water Dist. | 0 | 0 |
| Palo Alto | City of Palo Alto | 0 | 0 |
| Palos Verdes Estates | California Water Service Co. - Palos Ver | 0 | 23,500 |
| Paradise | Paradise Irrigation District | 0 | 0 |
| Paramount | Paramount - City, Water Dept. | 0 | 0 |
| Parlier | City of Parlier | 0 | 2,783 |
| Pasadena | Pasadena Water and Power | 0 | 0 |
| Patterson | City of Patterson | 0 | 0 |
| Perris | Eastern Municipal WD | 0 | 0 |
| Petaluma | City of Petaluma | 122 | 4,588 |
| Pico Rivera | Pico WD | 0 | 0 |
| Piedmont | East Bay MUD | 3,935 | 0 |
| Pinole | East Bay MUD | 3,935 | 0 |
| Pismo Beach | Pismo Beach Water Department | 0 | 0 |
| Pittsburg | City of Pittsburg | 0 | 0 |
| Placentia | Golden State WC - Placentia/Yorba Linda | 0 | 0 |
| Placerville | Placerville, City of - Main | 78 | 1,777 |
| Pleasant Hill | Contra Costa Water District | 0 | 0 |
| Pleasanton | City of Pleasanton | 0 | 0 |
| Plymouth | City of Plymouth | 3 | 605 |
| Pomona | Pomona - City, Water Dept. | 0 | 0 |
| Port Hueneme | Naval Base Ventura County, Port Hueneme | 0 | 0 |
| Porterville | City of Porterville | 0 | 12,717 |
| Portola | City of Portola | 0 | 0 |
| Portola Valley | California Water Service - Bear Gulch | 0 | 0 |
| Poway | City of Poway | 0 | 0 |
| Rancho Cordova | Scwa - Laguna/Vineyard | 0 | 409 |
| Rancho Cucamonga | Cucamonga Valley Water District | 0 | 0 |
| Rancho Mirage | Coachella VWD: Cove Community | 0 | 0 |
| Rancho Palos Verdes | California Water Service Co. - Palos Ver | 0 | 23,500 |
| Rancho Santa Margarita | Santa Margarita Water District | 0 | 0 |
| Red Bluff | City of Red Bluff | 0 | 0 |
| Redding | City of Redding | 0 | 0 |
| Redlands | Redlands City Mud-Water Div | 0 | 0 |
| Redondo Beach | California Water Service Co. - Herm/Redo | 0 | 24,355 |
| Redwood | City of Redwood City | 0 | 0 |
| Reedley | City of Reedley | 2 | 6,082 |
| Rialto | City of Rialto | 0 | 0 |
| Richmond | East Bay MUD | 3,935 | 0 |
| Ridgecrest | Indian Wells Valley W.D. | 78 | 79 |
| Rio Dell | City of Rio Dell | 0 | 0 |
| Rio Vista | City of Rio Vista | 0 | 0 |
| Ripon | City of Ripon | 0 | 0 |
| Riverbank | City of Riverbank | 134 | 1,729 |
| Riverside | City of Riverside | 0 | 0 |
| Rocklin | Placer Cwa - Foothill | 0 | 6,585 |
| Rohnert Park | City of Rohnert Park | 0 | 0 |
| Rolling Hills | California Water Service Co. - Palos Ver | 0 | 23,500 |
| Rolling Hills Estates | California Water Service Co. - Palos Ver | 0 | 23,500 |
| Rosemead | Amarillo Mutual Water Company | 0 | 0 |
| Roseville | City of Roseville | 0 | 2,638 |
| Ross | Marin Municipal Water District | 0 | 0 |
| Sacramento | City of Sacramento Main | 0 | 0 |
| Salinas | CWSC Salinas | 0 | 0 |
| San Anselmo | Marin Municipal Water District | 0 | 0 |
| San Bernardino | San Bernardino City | 0 | 0 |
| San Bruno | City of San Bruno | 0 | 0 |
| San Buenaventura (Ventura) | Ventura Water Department | 0 | 0 |
| San Carlos | California Water Service - San Carlos | 0 | 10,076 |
| San Clemente | City of San Clemente | 0 | 0 |
| San Diego | City of San Diego | 0 | 0 |
| San Dimas | Gswc-San Dimas | 0 | 0 |
| San Fernando | San Fernando-City, Water Dept. | 0 | 0 |
| San Gabriel | San Gabriel County WD | 0 | 0 |
| San Jacinto | Eastern Municipal WD | 0 | 0 |
| San Joaquin | City of San Joaquin | 0 | 0 |
| San Jose | San Jose Water | 0 | 0 |
| San Juan Bautista | City of San Juan Bautista | 0 | 0 |
| San Juan Capistrano | Santa Margarita Water District-Id9 | 0 | 0 |
| San Leandro | East Bay MUD | 3,935 | 0 |
| San Luis Obispo | San Luis Obispo Water Department | 890 | 0 |
| San Marcos | Vallecitos WD | 0 | 0 |
| San Marino | Cal/Am Water Company - San Marino | 0 | 0 |
| San Mateo | California Water Service - San Mateo | 0 | 0 |
| San Pablo | East Bay MUD | 3,935 | 0 |
| San Rafael | Marin Municipal Water District | 0 | 0 |
| San Ramon | East Bay MUD | 3,935 | 0 |
| Sanger | City of Sanger | 0 | 0 |
| Santa Ana | City of Santa Ana | 0 | 0 |
| Santa Barbara | City of Santa Barbara Water Department | 0 | 0 |
| Santa Clara | City of Santa Clara | 0 | 0 |
| Santa Clarita | Santa Clarita Valley Water Agency | 0 | 0 |
| Santa Cruz | Santa Cruz Water Department | 0 | 0 |
| Santa Fe Springs | Santa Fe Springs - City, Water Dept. | 0 | 0 |
| Santa Maria | City of Santa Maria Utilities Department | 60 | 19,743 |
| Santa Monica | Santa Monica-City, Water Division | 0 | 0 |
| Santa Paula | City of Santa Paula | 0 | 0 |
| Santa Rosa | City of Santa Rosa | 0 | 0 |
| Santee | Padre Dam MWD | 0 | 0 |
| Saratoga | San Jose Water | 0 | 0 |
| Sausalito | Marin Municipal Water District | 0 | 0 |
| Scotts Valley | Scotts Valley Water District | 0 | 0 |
| Seal Beach | City of Seal Beach | 0 | 0 |
| Seaside | Marina Coast Water District | 0 | 0 |
| Sebastopol | City of Sebastopol | 0 | 0 |
| Selma | CWS - Selma | 0 | 4,294 |
| Shafter | City of Shafter | 0 | 0 |
| Shasta Lake | City of Shasta Lake | 0 | 0 |
| Sierra Madre | Sierra Madre-City, Water Dept. | 0 | 0 |
| Signal Hill | Signal Hill - City, Water Dept. | 0 | 0 |
| Simi Valley | Golden State Water Company - Simi Valley | 0 | 0 |
| Solana Beach | Santa Fe I.D. | 0 | 0 |
| Soledad | City of Soledad | 0 | 0 |
| Solvang | Solvang Water Division | 0 | 0 |
| Sonoma | City of Sonoma | 483 | 432 |
| Sonora | Tud - Sonora/Jamestown Water System | 0 | 0 |
| South El Monte | San Gabriel Valley Water Co.-El Monte | 0 | 0 |
| South Gate | South Gate-City, Water Dept. | 0 | 0 |
| South Lake Tahoe | South Tahoe PUD - Main | 0 | 0 |
| South Pasadena | City of South Pasadena | 0 | 0 |
| South San Francisco | California Water Service-S San Francisco | 0 | 15,446 |
| St. Helena | City of St. Helena | 0 | 634 |
| Stanton | Golden State WC - West Orange County | 0 | 0 |
| Stockton | California Water Service - Stockton | 0 | 0 |
| Suisun | Suisun-Solano Water Authority | 0 | 1,149 |
| Sunnyvale | City of Sunnyvale | 0 | 0 |
| Susanville | City of Susanville | 0 | 0 |
| Sutter Creek | Awa, Tanner | 0 | 784 |
| Taft | West Kern Water District | 0 | 0 |
| Tehachapi | City of Tehachapi | 0 | 3,368 |
| Temecula | Rancho California Water District | 0 | 0 |
| Temple | Sunny Slope Water Co. | 0 | 1,578 |
| Thousand Oaks | Cal American Water Co | 0 | 0 |
| Tiburon | Marin Municipal Water District | 0 | 0 |
| Torrance | California Water Service Co. - Dominguez | 0 | 31,869 |
| Tracy | City of Tracy | 0 | 0 |
| Truckee | Truckee-Donner PUD, Main | 0 | 0 |
| Tulare | City of Tulare | 142 | 0 |
| Turlock | City of Turlock | 0 | 0 |
| Tustin | City of Tustin | 130 | 0 |
| Twentynine Palms | Twentynine Palms Water District | 0 | 0 |
| Ukiah | City of Ukiah | 0 | 0 |
| Union | Alameda County Water District | 0 | 146 |
| Upland | City of Upland | 0 | 0 |
| Vacaville | City of Vacaville | 0 | 0 |
| Vallejo | City of Vallejo | 0 | 36,385 |
| Victorville | Victorville Water District | 408 | 0 |
| Villa Park | Serrano Water District | 0 | 0 |
| Visalia | CWS - Visalia | 0 | 28,174 |
| Vista | Vista Irrigation District | 0 | 0 |
| Walnut | Walnut Valley Water District | 0 | 0 |
| Walnut Creek | East Bay MUD | 3,935 | 0 |
| Wasco | City of Wasco | 0 | 0 |
| Waterford | City of Waterford | 0 | 2,240 |
| Watsonville | City of Watsonville | 0 | 0 |
| Weed | City of Weed | 0 | 515 |
| West Covina | Suburban Water Systems-San Jose | 0 | 0 |
| West Hollywood | Los Angeles-City, Dept. of Water & Power | 0 | 0 |
| West Sacramento | City of West Sacramento | 0 | 8,645 |
| Westlake | Las Virgenes MWD | 0 | 0 |
| Westminster | City of Westminster | 0 | 0 |
| Westmorland | City of Westmorland | 0 | 0 |
| Wheatland | City of Wheatland | 0 | 0 |
| Whittier | Whittier-City, Water Dept. | 0 | 0 |
| Wildomar | Elsinore Valley MWD | 0 | 0 |
| Williams | City of Williams | 0 | 0 |
| Willits | City of Willits | 0 | 2,574 |
| Willows | Cal-Water Service Co.-Willows | 0 | 2,314 |
| Windsor | Town of Windsor | 0 | 0 |
| Winters | City of Winters | 0 | 0 |
| Woodlake | City of Woodlake | 0 | 0 |
| Woodland | City of Woodland | 0 | 0 |
| Woodside | California Water Service - Bear Gulch | 0 | 0 |
| Yorba Linda | Yorba Linda Water District | 0 | 0 |
| Yountville | Veterans Home of California | 0 | 0 |
| Yreka | City of Yreka | 0 | 0 |
| Yuba | City of Yuba City | 0 | 0 |
| Yucaipa | Yucaipa Valley Water District | 0 | 0 |
| Yucca Valley | Hi Desert WD | 0 | 0 |