| Adelanto | Adelanto - Notice of Compliance Evaluation Letter 2025 | Adelanto - Implementation Record Request Letter 2025 | | | |
| Agoura Hills | | | | | |
| Alameda | | | | | |
| Alameda-Unincorporated | | | | | |
| Albany | | | | | |
| Alhambra | | | | | |
| Aliso Viejo | | | | | |
| Almonte Sanitary District | Almonte Sanitary District - Notice of Compliance Evaluation Letter 2025 | Almonte Sanitary District - Implementation Record Request Letter 2025 | | | |
| Alpine-Unincorporated | | | | | |
| Alto Sanitary District | Alto Sanitary District - Notice of Compliance Evaluation Letter 2025 | Alto Sanitary District - Implementation Record Request Letter 2025 | | | |
| Alturas | | | | | |
| Amador City | | | | | |
| Amador-Unincorporated | | | | | |
| American Canyon | American Canyon - Notice of Compliance Evaluation Letter 2025 | American Canyon - Implementation Record Request Letter 2025 | | | |
| Anaheim | | | | | |
| Anderson | Anderson - Notice of Compliance Evaluation Letter 2025 | Anderson - Implementation Record Request Letter 2025 | | | |
| Angels Camp | | | | | |
| Antioch | Antioch - Notice of Compliance Evaluation Letter 2025 | Antioch - Implementation Record Request Letter 2025 | | | |
| Apple Valley | | | | | |
| Arcadia | Arcadia - Notice of Compliance Evaluation Letter 2023 | Arcadia - Implementation Record Request Letter 2023 | | | |
| Arcata | | | | | |
| Armona Community Services District | Armona Community Services District - Notice of Compliance Evaluation Letter 2025 | Armona Community Services District - Implementation Record Request Letter 2025 | | | |
| Arroyo Grande | Arroyo Grande - Notice of Compliance Evaluation Letter 2025 | Arroyo Grande - Implementation Record Request Letter 2025 | | | |
| Artesia | | | | | |
| Arvin | | | | | |
| Atascadero | Atascadero - Notice of Compliance Evaluation Letter 2025 | Atascadero - Implementation Record Request Letter 2025 | | | |
| Atherton | | | | | |
| Atwater | Atwater - Notice of Compliance Evaluation Letter 2025 | Atwater - Implementation Record Request Letter 2025 | | | |
| Auburn | | | | | |
| Avalon | Avalon - Notice of Compliance Evaluation Letter 2025 | Avalon - Implementation Record Request Letter 2025 | | | |
| Avenal | Avenal - Notice of Compliance Evaluation Letter 2025 | Avenal - Implementation Record Request Letter 2025 | | | |
| Avila Beach Community Services District | Avila Beach Community Services District - Notice of Compliance Evaluation Letter 2025 | Avila Beach CSD - Implementation Record Request Letter 2025 | | | |
| Azusa | | | | | |
| Bakersfield | Bakersfield - Notice of Compliance Evaluation Letter 2025 | Bakersfield - Implementation Record Request Letter 2025 | | | |
| Baldwin Park | Baldwin Park - Notice of Compliance Evaluation Letter 2023 | Baldwin Park - Implementation Record Request Letter 2023 | | | |
| Banning | | | | | |
| Barstow | | | | | |
| Bear Valley Community Services District | | | | | |
| Beaumont | | | | | |
| Bell | Bell - Notice of Compliance Evaluation 2024 | Bell - Implementation Record Request Letter 2024 | | | |
| Bell Canyon Community Services District | | | | | |
| Bell Gardens | Bell Gardens - Notice of Compliance Evaluation Letter 2025 | Bell Gardens - Implementation Record Request Letter 2025 | | | |
| Bellflower | | | | | |
| Belmont | | | | | |
| Belvedere | Belvedere - Notice of Compliance Evaluation 2024 | Belvedere - Implementation Record Request Letter 2024 | | | |
| Benicia | | | | | |
| Berkeley | Berkeley - Notice of Compliance Evaluation 2024 | Berkeley - Implementation Record Request Letter 2024 | | | |
| Beverly Hills | Beverly Hills - Notice of Compliance Evaluation Letter 2025 | Beverly Hills - Implementation Record Request Letter 2025 | | | |
| Big Bear City Community Services District | Big Bear City CSD - Notice of Compliance Evaluation Letter 2025 | Big Bear City CSD - Implementation Record Request Letter 2025 | | | |
| Big Bear Lake | Big Bear Lake - Notice of Compliance Evaluation Letter 2025 | Big Bear Lake - Implementation Record Request Letter 2025 | | | |
| Biggs | | | | | |
| Biola Community Services District | | | | | |
| Bishop | | | | | |
| Blue Lake | | | | | |
| Blythe | | | | | |
| Bolinas Community Public Utility District | Bolinas Community Public Utility District - Notice of Compliance Evaluation Letter 2025 | Bolinas Community Public Utility District - Implementation Record Request Letter 2025 | | | |
| Bradbury | | | | | |
| Brawley | Brawley - Notice of Compliance Evaluation Letter 2025 | Brawley - Implementation Record Request Letter 2025 | | | |
| Brea | | | | | |
| Brentwood | | | | | |
| Brisbane | | | | | |
| Brooktrails Township Community Services District | | | | | |
| Buellton | | | | | |
| Buena Park | | | | | |
| Burbank | | | | | |
| Burlingame | | | | | |
| Butte-Unincorporated | | | | | |
| Byron Sanitary District | | | | | |
| Calabasas | | | | | |
| Calaveras-Unincorporated | | | | | |
| Calexico | Calexico - Notice of Compliance Evaluation Letter 2025 | Calexico - Implementation Record Request Letter 2025 | | | |
| California City | | | | | |
| California Pines Community Services District | | | | | |
| California Valley Community Services District | California Valley CSD - Notice of Compliance Evaluation Letter 2025 | California Valley CSD - Implementation Record Request Letter 2025 | | | |
| Calimesa | | | | | |
| Calipatria | Calipatria - Notice of Compliance Evaluation Letter 2025 | Calipatria - Implementation Record Request Letter 2025 | | | |
| Calistoga | | | | | |
| Camarillo | | | | | |
| Cambria Community Services District | Cambria Community Services District - Notice of Compliance Evaluation Letter 2025 | Cambria Community Services District - Implementation Record Request Letter 2025 | | | |
| Cameron Park Community Services District | | | | | |
| Campbell | | | | | |
| Canyon Lake | | | | | |
| Capistrano Bay Community Services District | | | | | |
| Capitola | | | | | |
| Carlsbad | | | | | |
| Carmel-by-the-Sea | | | | | |
| Carpinteria | | | | | |
| Carson | Carson - Notice of Compliance Evaluation 2024 | Carson - Implementation Record Request Letter 2024 | | | |
| Castro Valley Sanitary District | | | | | |
| Cathedral City | Cathedral City - Notice of Compliance Evaluation Letter 2025 | Cathedral City - Implementation Record Request Letter 2025 | | | |
| Cayucos Sanitary District | Cayucos Sanitary District - Notice of Compliance Evaluation Letter 2025 | Cayucos Sanitary District - Implementation Record Request Letter 2025 | | | |
| Ceres | Ceres - Notice of Compliance Evaluation Letter 2023 | Ceres - Implementation Record Request Letter 2023 | | | |
| Cerritos | Cerritos - Notice of Compliance Evaluation Letter 2023 | Cerritos - Implementation Record Request Letter 2023 | | | |
| Channel Islands Beach Community Services District | Channel Islands Beach Community Services District - Notice of Compliance Evaluation Letter 2025 | Channel Islands Beach Community Services District - Implementation Record Request Letter 2025 | | | |
| Chester Public Utility District | Chester Public Utility District - Notice of Compliance Evaluation Letter 2025 | Chester Public Utility District - Implementation Record Request Letter 2025 | | | |
| Chico | | | | | |
| Chino | Chino - Notice of Compliance Evaluation 2024 | Chino - Implementation Record Request Letter 2024 | | | |
| Chino Hills | | | | | |
| Chowchilla | | | | | |
| Chula Vista | Chula Vista - Notice of Compliance Evaluation Letter 2023 | Chula Vista - Implementation Record Request Letter 2023 | | | |
| Citrus Heights | | | | | |
| Claremont | | | | | |
| Clayton | Clayton - Notice of Compliance Evaluation 2025 | Clayton - Implementation Record Request Letter 2025 | | | |
| Clearlake | | | | | |
| Cloverdale | Cloverdale - Notice of Compliance Evaluation 2024 | Cloverdale - Implementation Record Request Letter 2024 | | | |
| Clovis | | | | | |
| Coachella | Coachella - Notice of Compliance Evaluation 2025 | Coachella - Implementation Record Request Letter 2025 | | | |
| Coalinga | | | | | |
| Colfax | | | | | |
| Colma | | | | | |
| Colton | | | | | |
| Colusa | | | | | |
| Colusa-Unincorporated | | | | | |
| Commerce | Commerce - Notice of Compliance Evaluation Letter 2023 | Commerce - Implementation Record Request Letter 2023 | | | |
| Compton | | | | | |
| Concord | Concord - Notice of Compliance Evaluation Letter 2025 | Concord - Implementation Record Request Letter 2025 | | | |
| Contra Costa-Unincorporated | | | | | |
| Corcoran | Corcoran - Notice of Compliance Evaluation Letter 2025 | Corcoran - Implementation Record Request Letter 2025 | | | |
| Corning | | | | | |
| Corona | | | | | |
| Coronado | | | | | |
| Corte Madera | Corte Madera - Notice of Compliance Evaluation 2024 | Corte Madera - Implementation Record Request Letter 2024 | | | |
| Costa Mesa | | | | | |
| Costa Mesa Sanitary District | | | | | |
| Cotati | Cotati - Notice of Compliance Evaluation 2024 | Cotati - Implementation Record Request Letter 2024 | | | |
| Covina | | | | | |
| Crescent City | | | | | |
| Cudahy | Cudahy - Notice of Compliance Evaluation Letter 2023 | Cudahy - Implementation Record Request Letter 2023 | Cudahy - Compliance Evaluation Finding Report 2025 | Cudahy - Notice of Violation - September 4, 2025 | Ongoing |
| Culver City | Culver City - Notice of Compliance Evaluation Letter 2025 | Culver City - Implementation Record Request Letter 2025 | | | |
| Cupertino | | | | | |
| Cypress | | | | | |
| Daly City | | | | | |
| Dana Point | | | | | |
| Danville | | | | | |
| Davis | | | | | |
| De Luz Community Services District | | | | | |
| Del Mar | | | | | |
| Del Norte-Unincorporated | | | | | |
| Del Rey Community Service District | | | | | |
| Del Rey Oaks | | | | | |
| Delano | | | | | |
| Desert Hot Springs | | | | | |
| Diamond Bar | | | | | |
| Dinuba | | | | | |
| Dixon | | | | | |
| Dorris | | | | | |
| Dos Palos | Dos Palos - Notice of Compliance Evaluation Letter 2025 | Dos Palos - Implementation Record Request Letter 2025 | | | |
| Downey | | | | | |
| Duarte | | | | | |
| Dublin | | | | | |
| Dunsmuir | | | | | |
| East Palo Alto | | | | | |
| Eastvale | | | | | |
| El Cajon | | | | | |
| El Centro | El Centro - Notice of Compliance Evaluation Letter 2025 | El Centro - Implementation Record Request Letter 2025 | | | |
| El Cerrito | | | | | |
| El Dorado Hills Community Services District | | | | | |
| El Dorado-Unincorporated | | | | | |
| El Monte | | | | | |
| El Paso De Robles | El Paso De Robles - Notice of Compliance Evaluation Letter 2025 | El Paso De Robles - Implementation Record Request Letter 2025 | | | |
| El Segundo | | | | | |
| Elk Grove | | | | | |
| Emeryville | | | | | |
| Encinitas | | | | | |
| Escalon | Escalon - Notice of Compliance Evaluation Letter 2025 | Escalon - Implementation Record Request Letter 2025 | | | |
| Escondido | | | | | |
| Etna | | | | | |
| Eureka | | | | | |
| Exeter | | | | | |
| Fairfax | Fairfax - Notice of Compliance Evaluation 2024 | Fairfax - Implementation Record Request Letter 2024 | | | |
| Fairfield | Fairfield - Notice of Compliance Evaluation 2024 | Fairfield - Implementation Record Request Letter 2024 | | | |
| Farmersville | | | | | |
| Ferndale | | | | | |
| Fillmore | | | | | |
| Firebaugh | | | | | |
| Folsom | | | | | |
| Fontana | Fontana - Notice of Compliance Evaluation Letter 2025 | Fontana - Implementation Record Request Letter 2025 | | | |
| Fort Bragg | Fort Bragg - Notice of Compliance Evaluation Letter 2025 | Fort Bragg - Implementation Record Request Letter 2025 | | | |
| Fort Jones | | | | | |
| Fortuna | | | | | |
| Foster City | | | | | |
| Fountain Valley | | | | | |
| Fowler | | | | | |
| Fremont | Fremont - Notice of Compliance Evaluation 2024 | Fremont - Implementation Record Request Letter 2024 | | | |
| Fresno | | | | | |
| Fresno-Unincorporated | | | | | |
| Fullerton | | | | | |
| Galt | Galt - Notice of Compliance Evaluation Letter 2025 | Galt - Implementation Record Request Letter 2025 | | | |
| Garden Grove | Garden Grove - Notice of Compliance Evaluation Letter 2025 | Garden Grove - Implementation Record Request Letter 2025 | | | |
| Garden Grove Sanitary District | Garden Grove Sanitary District - Notice of Compliance Evaluation Letter 2025 | Garden Grove Sanitary District - Implementation Record Request Letter 2025 | | | |
| Gardena | | | | | |
| Gilroy | | | | | |
| Glendale | Glendale - Notice of Compliance Evaluation Letter 2025 | Glendale - Implementation Record Request Letter 2025 | | | |
| Glendora | | | | | |
| Glenn-Unincorporated | | | | | |
| Golden Hills Community Services District | Golden Hills Community Services District - Notice of Compliance Evaluation Letter 2025 | Golden Hills Community Services District - Implementation Record Request Letter 2025 | | | |
| Goleta | Goleta - Notice of Compliance Evaluation Letter 2025 | Goleta - Implementation Record Request Letter 2025 | | | |
| Gonzales | Gonzales - Notice of Compliance Evaluation Letter 2025 | Gonzales - Implementation Record Request Letter 2025 | | | |
| Granada Community Services District | | | | | |
| Grand Terrace | | | | | |
| Grass Valley | Grass Valley - Notice of Compliance Evaluation Letter 2025 | Grass Valley - Implementation Record Request Letter 2025 | | | |
| Greenfield | Greenfield - Notice of Compliance Evaluation Letter 2025 | Greenfield - Implementation Record Request Letter 2025 | | | |
| Gridley | | | | | |
| Ground Squirrel Hollow Community Services District | Ground Squirrel Hollow CSD - Notice of Compliance Evaluation Letter 2025 | Ground Squirrel Hollow CSD - Implementation Record Request Letter 2025 | | | |
| Grover Beach | Grover Beach - Notice of Compliance Evaluation Letter 2025 | Grover Beach - Implementation Record Request Letter 2025 | | | |
| Guadalupe | | | | | |
| Gustine | Gustine - Notice of Compliance Evaluation Letter 2025 | Gustine - Implementation Record Request Letter 2025 | | | |
| Half Moon Bay | | | | | |
| Hanford | Hanford - Notice of Compliance Evaluation Letter 2025 | Hanford - Implementation Record Request Letter 2025 | | | |
| Hawaiian Gardens | | | | | |
| Hawthorne | | | | | |
| Hayward | Hayward - Notice of Compliance Evaluation 2024 | Hayward - Implementation Record Request Letter 2024 | | | |
| Healdsburg | Healdsburg - Notice of Compliance Evaluation 2024 | Healdsburg - Implementation Record Request Letter 2024 | | | |
| Heber Public Utility District | Heber Public Utility District - Notice of Compliance Evaluation Letter 2025 | Heber Public Utility District - Implementation Record Request Letter 2025 | | | |
| Helendale Community Services District | Helendale Community Services District - Notice of Compliance Evaluation Letter 2025 | Helendale Community Services District - Implementation Record Request Letter 2025 | | | |
| Hemet | Hemet - Notice of Compliance Evaluation 2025 | Hemet - Implementation Record Request Letter 2025 | | | |
| Hercules | | | | | |
| Heritage Ranch Community Services District | Heritage Ranch Community Services District - Notice of Compliance Evaluation Letter 2025 | Heritage Ranch CSD - Implementation Record Request Letter 2025 | | | |
| Hermosa Beach | | | | | |
| Hesperia | Hesperia - Notice of Compliance Evaluation Letter 2025 | Hesperia - Implementation Record Request Letter 2025 | | | |
| Hidden Hills | | | | | |
| Highland | | | | | |
| Hillsborough | | | | | |
| Hollister | | | | | |
| Holtville | Holtville - Notice of Compliance Evaluation Letter 2025 | Holtville - Implementation Record Request Letter 2025 | | | |
| Home Garden Community Service District | Home Garden Community Services District - Notice of Compliance Evaluation Letter 2025 | Home Garden Community Services District - Implementation Record Request Letter 2025 | | | |
| Homestead Valley Sanitary District | Homestead Valley Sanitary District - Notice of Compliance Evaluation Letter 2025 | Homestead Valley Sanitary District - Implementation Record Request Letter 2025 | | | |
| Hughson | Hughson - Notice of Compliance Evaluation 2024 | Hughson - Implementation Record Request Letter 2024 | | | |
| Humboldt-Unincorporated | | | | | |
| Huntington Beach | Huntington Beach - Notice of Compliance Evaluation 2024 | Huntington Beach - Implementation Record Request Letter 2024 | | | |
| Huntington Park | Huntington Park - Notice of Compliance Evaluation Letter 2023 | Huntington Park - Implementation Record Request Letter 2023 | | | |
| Huron | | | | | |
| Imperial | Imperial - Notice of Compliance Evaluation Letter 2025 | Imperial - Implementation Record Request Letter 2025 | | | |
| Imperial Beach | | | | | |
| Imperial-Unincorporated | Imperial - Unincorporated - Notice of Compliance Evaluation Letter 2025 | Imperial-Unincorporated - Implementation Record Request Letter 2025 | | | |
| Indian Wells | | | | | |
| Indio | Indio - Notice of Compliance Evaluation Letter 2025 | Indio - Implementation Record Request Letter 2025 | | | |
| Industry | | | | | |
| Inglewood | Inglewood - Notice of Compliance Evaluation 2024 | Inglewood - Implementation Record Request Letter 2024 | | | |
| Inyo-Unincorporated | | | | | |
| Ione | | | | | |
| Irvine | | | | | |
| Irwindale | | | | | |
| Isleton | | | | | |
| Jackson | | | | | |
| Jurupa Valley | | | | | |
| Kensington Police Protection and Community Services District | | | | | |
| Kerman | | | | | |
| Kern-Unincorporated | | | | | |
| Kettleman City Community Services District | Kettleman City Community Services District - Notice of Compliance Evaluation Letter 2025 | Kettleman City Community Services District - Implementation Record Request Letter 2025 | | | |
| King City | King City - Notice of Compliance Evaluation Letter 2025 | King City - Implementation Record Request Letter 2025 | | | |
| Kingsburg | | | | | |
| Kings-Unincorporated | Kings Unincorporated - Notice of Compliance Evaluation Letter 2025 | Kings Unincorporated - Implementation Record Request Letter 2025 | | | |
| Kirkwood Meadows Public Utility District | | | | | |
| La Canada Flintridge | | | | | |
| La Habra | | | | | |
| La Habra Heights | La Habra Heights - Notice of Compliance Evaluation Letter 2025 | La Habra Heights - Implementation Record Request Letter 2025 | | | |
| La Mesa | | | | | |
| La Mirada | | | | | |
| La Palma | | | | | |
| La Puente | | | | | |
| La Quinta | | | | | |
| La Verne | | | | | |
| Lafayette | | | | | |
| Laguna Beach | Laguna Beach - Notice of Compliance Evaluation Letter 2025 | Laguna Beach - Implementation Record Request Letter 2025 | | | |
| Laguna Hills | | | | | |
| Laguna Niguel | | | | | |
| Laguna Woods | | | | | |
| Lake Elsinore | | | | | |
| Lake Forest | | | | | |
| Lakeport | | | | | |
| Lake-Unincorporated | | | | | |
| Lakewood | | | | | |
| Lancaster | Lancaster - Notice of Compliance Evaluation Letter 2023 | Lancaster - Implementation Record Request Letter 2023 | | | |
| Larkspur | Larkspur - Notice of Compliance Evaluation 2024 | Larkspur - Implementation Record Request Letter 2024 | | | |
| Las Gallinas Valley Sanitary District | Las Gallinas Valley Sanitary District - Notice of Compliance Evaluation Letter 2025 | Las Gallinas Valley Sanitary District - Implementation Record Request Letter 2025 | | | |
| Lassen-Unincorporated | | | | | |
| Lathrop | | | | | |
| Laton Community Services District | | | | | |
| Lawndale | | | | | |
| Lemon Grove | Lemon Grove - Notice of Compliance Evaluation Letter 2025 | Lemon Grove - Implementation Record Request Letter 2025 | | | |
| Lemoore | Lemoore - Notice of Compliance Evaluation Letter 2025 | Lemoore - Implementation Record Request Letter 2025 | | | |
| Lincoln | | | | | |
| Lindsay | | | | | |
| Live Oak | Live Oak - Notice of Compliance Evaluation Letter 2023 | Live Oak - Implementation Record Request Letter 2023 | | | |
| Livermore | | | | | |
| Livingston | Livingston - Notice of Compliance Evaluation Letter 2025 | Livingston - Implementation Record Request Letter 2025 | | | |
| Lodi | | | | | |
| Loma Linda | | | | | |
| Lomita | Lomita - Notice of Compliance Evaluation 2024 | Lomita - Implementation Record Request Letter 2024 | | | |
| Lompoc | | | | | |
| Long Beach | | | | | |
| Loomis | Loomis - Notice of Compliance Evaluation Letter 2025 | Loomis - Implementation Record Request Letter 2025 | | | |
| Los Alamitos | | | | | |
| Los Altos | | | | | |
| Los Altos Hills | | | | | |
| Los Angeles | | | | | |
| Los Angeles-Unincorporated | | | | | |
| Los Banos | Los Banos - Notice of Compliance Evaluation Letter 2025 | Los Banos - Implementation Record Request Letter 2025 | | | |
| Los Gatos | | | | | |
| Los Osos Community Services District | Los Osos Community Services District - Notice of Compliance Evaluation Letter 2025 | Los Osos Community Services District - Implementation Record Request Letter 2025 | | | |
| Loyalton | | | | | |
| Lynwood | Lynwood - Notice of Compliance Evaluation Letter 2025 | Lynwood - Implementation Record Request Letter 2025 | | | |
| Madera | | | | | |
| Madera-Unincorporated | | | | | |
| Malaga County Water District | | | | | |
| Malibu | | | | | |
| Mammoth Lakes | | | | | |
| Manhattan Beach | | | | | |
| Manteca | | | | | |
| Maricopa | | | | | |
| Marin City Community Services District | Marin City Community Services District - Notice of Compliance Evaluation Letter 2025 | Marin City Community Services District - Implementation Record Request Letter 2025 | | | |
| Marina | | | | | |
| Marin-Unincorporated | Marin Unincorporated- Notice of Compliance Evaluation 2024 | Marin Unincorporated - Implementation Record Request Letter 2024 | | | |
| Mariposa-Unincorporated | | | | | |
| Martinez | | | | | |
| Marysville | Marysville - Notice of Compliance Evaluation Letter 2023 | Marysville - Implementation Record Request Letter 2023 | | | |
| Maywood | | | | | |
| McCloud Community Services District | | | | | |
| McFarland | | | | | |
| Mendocino-Unincorporated | | | | | |
| Mendota | | | | | |
| Menifee | | | | | |
| Menlo Park | | | | | |
| Merced | Merced - Notice of Compliance Evaluation Letter 2025 | Merced - Implementation Record Request Letter 2025 | | | |
| Merced-Unincorporated | | | | | |
| Midway City Sanitary District | Midway City Sanitary District - Notice of Compliance Evaluation 2024 | Midway City Sanitary District - Implementation Record Request Letter 2024 | | | |
| Mill Valley | Mill Valley - Notice of Compliance Evaluation 2024 | Mill Valley - Implementation Record Request Letter 2024 | | | |
| Millbrae | | | | | |
| Milpitas | | | | | |
| Mission Viejo | | | | | |
| Modesto | | | | | |
| Modoc-Unincorporated | Modoc-Unincorporated - Notice of Compliance Evaluation Letter 2023 | Modoc-Unincorporated - Implementation Record Request Letter 2023 | | | |
| Mono-Unincorporated | | | | | |
| Monrovia | Monrovia - Notice of Compliance Evaluation Letter 2025 | Monrovia - Implementation Record Request Letter 2025 | | | |
| Montague | | | | | |
| Montara Water and Sanitary District | | | | | |
| Montclair | | | | | |
| Monte Sereno | | | | | |
| Montebello | | | | | |
| Monterey | Monterey - Notice of Compliance Evaluation 2024 | Monterey - Implementation Record Request Letter 2024 | | | |
| Monterey Park | | | | | |
| Monterey-Unincorporated | Monterey Unincorporated - Notice of Compliance Evaluation 2024 | Monterey Unincorporated - Implementation Record Request Letter 2024 | | | |
| Moorpark | | | | | |
| Moraga | | | | | |
| Moreno Valley | Moreno Valley - Notice of Compliance Evaluation Letter 2025 | Moreno Valley - Implementation Record Request Letter 2025 | | | |
| Morgan Hill | | | | | |
| Morro Bay | Morro Bay - Notice of Compliance Evaluation Letter 2025 | Morro Bay - Implementation Record Request Letter 2025 | | | |
| Mount Shasta | | | | | |
| Mountain House | | | | | |
| Mountain View | | | | | |
| Mt. View Sanitary District | | | | | |
| Murrieta | Murrieta - Notice of Compliance Evaluation Letter 2025 | Murrieta - Implementation Record Request Letter 2025 | | | |
| Napa | Napa - Notice of Compliance Evaluation Letter 2025 | Napa - Implementation Record Request Letter 2025 | | | |
| Napa-Unincorporated | | | | | |
| National City | | | | | |
| Needles | | | | | |
| Nevada City | Nevada City - Notice of Compliance Evaluation Letter 2023 | Nevada City - Implementation Record Request Letter 2023 | | | |
| Nevada-Unincorporated | Nevada-Unincorporated - Notice of Compliance Evaluation Letter 2023 | Nevada-Unincorporated - Implementation Record Request Letter 2023 | | | |
| Newark | | | | | |
| Newman | Newman - Notice of Compliance Evaluation 2024 | Newman - Implementation Record Request Letter 2024 | | | |
| Newport Beach | | | | | |
| Nipomo Community Services District | Nipomo Community Services District - Notice of Compliance Evaluation Letter 2025 | Nipomo Community Services District - Implementation Record Request Letter 2025 | | | |
| Norco | | | | | |
| Norwalk | | | | | |
| Novato | Novato - Notice of Compliance Evaluation 2024 | Novato - Implementation Record Request Letter 2024 | | | |
| Novato Sanitary District | Novato Sanitary District - Notice of Compliance Evaluation 2024 | Novato Sanitary District - Implementation Record Request Letter 2024 | | | |
| Oakdale | Oakdale - Notice of Compliance Evaluation 2024 | Oakdale - Implementation Record Request Letter 2024 | | | |
| Oakland | Oakland - Notice of Compliance Evaluation 2024 | Oakland - Implementation Record Request Letter 2024 | | | |
| Oakley | Oakley - Notice of Compliance Evaluation Letter 2025 | Oakley - Implementation Record Request Letter 2025 | | | |
| Oceano Community Services District | Oceano Community Services District - Notice of Compliance Evaluation Letter 2025 | Oceano Community Services District - Implementation Record Request Letter 2025 | | | |
| Oceanside | Oceanside - Notice of Compliance Evaluation Letter 2025 | Oceanside - Implementation Record Request Letter 2025 | | | |
| Ojai | | | | | |
| Olympic Valley Public Service District | | | | | |
| Ontario | Ontario - Notice of Compliance Evaluation 2024 | Ontario - Implementation Record Request Letter 2024 | | | |
| Orange | | | | | |
| Orange Cove | | | | | |
| Orange-Unincorporated | | | | | |
| Orinda | | | | | |
| Orland | | | | | |
| Oro Loma Sanitary District | | | | | |
| Oroville | | | | | |
| Oxnard | Oxnard - Notice of Compliance Evaluation Letter 2025 | Oxnard - Implementation Record Request Letter 2025 | | | |
| Pacific Grove | | | | | |
| Pacifica | | | | | |
| Palm Desert | | | | | |
| Palm Springs | Palm Springs - Notice of Compliance Evaluation Letter 2025 | Palm Springs - Implementation Record Request Letter 2025 | | | |
| Palmdale | | | | | |
| Palo Alto | | | | | |
| Palos Verdes Estates | Palos Verdes Estates - Notice of Compliance Evaluation Letter 2025 | Palos Verdes Estates - Implementation Record Request Letter 2025 | | | |
| Paradise | | | | | |
| Paramount | | | | | |
| Parlier | | | | | |
| Pasadena | | | | | |
| Patterson | Patterson - Notice of Compliance Evaluation 2024 | Patterson - Implementation Record Request Letter 2024 | | | |
| Pebble Beach Community Services District | Pebble Beach Community Services District - Notice of Compliance Evaluation Letter 2025 | Pebble Beach Community Services District - Implementation Record Request Letter 2025 | | | |
| Perris | | | | | |
| Petaluma | Petaluma - Notice of Compliance Evaluation 2024 | Petaluma - Implementation Record Request Letter 2024 | | | |
| Phelan Pinon Hills Community Services District | Phelan Pinon Hills Community Services District - Notice of Compliance Evaluation 2025 | Phelan Pinon Hills Community Services District - Implementation Record Request Letter 2025 | | | |
| Pico Rivera | | | | | |
| Piedmont | | | | | |
| Pinole | | | | | |
| Pismo Beach | Pismo Beach - Notice of Compliance Evaluation Letter 2025 | Pismo Beach - Implementation Record Request Letter 2025 | | | |
| Pittsburg | Pittsburg - Notice of Compliance Evaluation Letter 2025 | Pittsburg - Implementation Record Request Letter 2025 | | | |
| Placentia | Placentia - Notice of Compliance Evaluation Letter 2025 | Placentia - Implementation Record Request Letter 2025 | | | |
| Placer-Unincorporated | | | | | |
| Placerville | Placerville - Notice of Compliance Evaluation Letter 2023 | Placerville - Implementation Record Request Letter 2023 | | | |
| Pleasant Hill | | | | | |
| Pleasanton | | | | | |
| Plumas-Unincorporated | Plumas Unincorporated - Notice of Compliance Evaluation Letter 2025 | Plumas Unincorporated - Implementation Record Request Letter 2025 | | | |
| Plymouth | | | | | |
| Point Arena | | | | | |
| Pomona | Pomona - Notice of Compliance Evaluation Letter 2025 | Pomona - Implementation Record Request Letter 2025 | | | |
| Port Hueneme | | | | | |
| Porterville | | | | | |
| Portola | Portola - Notice of Compliance Evaluation Letter 2025 | Portola - Implementation Record Request Letter 2025 | | | |
| Portola Valley | | | | | |
| Poway | | | | | |
| Rancho Cordova | | | | | |
| Rancho Cucamonga | Rancho Cucamonga - Notice of Compliance Evaluation 2024 | Rancho Cucamonga - Implementation Record Request Letter 2024 | | | |
| Rancho Mirage | | | | | |
| Rancho Murieta Community Services District | | | | | |
| Rancho Palos Verdes | Rancho Palos Verdes - Notice of Compliance Evaluation Letter 2023 | Rancho Palos Verdes - Implementation Record Request Letter 2023 | Rancho Palos Verdes - Compliance Evaluation Finding Report 2025 | Rancho Palos Verdes - Notice of Violation - October 20, 2025 | Ongoing |
| Rancho Santa Margarita | | | | | |
| Red Bluff | | | | | |
| Redding | Redding - Notice of Compliance Evaluation Letter 2023 | Redding - Implementation Record Request Letter 2023 | | | |
| Redlands | | | | | |
| Redondo Beach | Redondo Beach - Notice of Compliance Evaluation 2024 | Redondo Beach - Implementation Record Request Letter 2024 | | | |
| Redwood City | | | | | |
| Reedley | | | | | |
| Rialto | Rialto - Notice of Compliance Evaluation 2024 | Rialto - Implementation Record Request Letter 2024 | | | |
| Richmond | | | | | |
| Ridgecrest | | | | | |
| Rio Dell | | | | | |
| Rio Vista | | | | | |
| Ripon | | | | | |
| Riverbank | Riverbank - Notice of Compliance Evaluation 2024 | Riverbank - Implementation Record Request Letter 2024 | | | |
| Riverdale Public Utility District | | | | | |
| Riverside | Riverside - Notice of Compliance Evaluation Letter 2025 | Riverside - Implementation Record Request Letter 2025 | | | |
| Riverside-Unincorporated | Riverside-Unincorporated - Notice of Compliance Evaluation Letter 2023 | Riverside-Unincorporated - Implementation Record Request Letter 2023 | | | |
| Rocklin | | | | | |
| Rodeo Sanitary District | | | | | |
| Rohnert Park | Rohnert Park - Notice of Compliance Evaluation 2024 | Rohnert Park - Implementation Record Request Letter 2024 | | | |
| Rolling Hills | | | | | |
| Rolling Hills Estates | | | | | |
| Rosemead | | | | | |
| Roseville | | | | | |
| Ross | Ross - Notice of Compliance Evaluation 2024 | Ross - Implementation Record Request Letter 2024 | | | |
| Rubidoux Community Services District | Rubidoux Community Services District - Notice of Compliance Evaluation Letter 2025 | Rubidoux Community Services District - Implementation Record Request Letter 2025 | | | |
| Sacramento | | | | | |
| Sacramento-Unincorporated | | | | | |
| Salinas | Salinas - Notice of Compliance Evaluation Letter 2025 | Salinas - Implementation Record Request Letter 2025 | | | |
| Salton Community Services District | Salton Community Services District - Notice of Compliance Evaluation Letter 2025 | Salton Community Services District - Implementation Record Request Letter 2025 | | | |
| San Anselmo | San Anselmo - Notice of Compliance Evaluation 2024 | San Anselmo - Implementation Record Request Letter 2024 | | | |
| San Benito-Unincorporated | | | | | |
| San Bernardino | | | | | |
| San Bernardino-Unincorporated | | | | | |
| San Bruno | | | | | |
| San Buenaventura | | | | | |
| San Carlos | | | | | |
| San Clemente | | | | | |
| San Diego | | | | | |
| San Diego-Unincorporated | | | | | |
| San Dimas | San Dimas - Notice of Compliance Evaluation Letter 2023 | San Dimas - Implementation Record Request Letter 2023 | San Dimas - Compliance Evaluation Findings Report 2025 | San Dimas - Notice of Violation - August 12, 2025 | Ongoing |
| San Fernando | | | | | |
| San Francisco | San Francisco - Notice of Compliance Evaluation 2024 | San Francisco - Implementation Record Request Letter 2023 | | | |
| San Gabriel | | | | | |
| San Jacinto | | | | | |
| San Joaquin | | | | | |
| San Joaquin-Unincorporated | | | | | |
| San Jose | | | | | |
| San Juan Bautista | | | | | |
| San Juan Capistrano | | | | | |
| San Leandro | San Leandro - Notice of Compliance Evaluation 2024 | San Leandro - Implementation Record Request Letter 2023 | | | |
| San Luis Obispo | San Luis Obispo - Notice of Compliance Evaluation Letter 2025 | San Luis Obispo - Implementation Record Request Letter 2025 | | | |
| San Luis Obispo-Unincorporated | San Luis Obispo Unincorporated - Notice of Compliance Evaluation Letter 2025 | San Luis Obispo Unincorporated - Implementation Record Request Letter 2025 | | | |
| San Marcos | | | | | |
| San Marino | | | | | |
| San Mateo | | | | | |
| San Mateo-Unincorporated | | | | | |
| San Miguel Community Services District | San Miguel Community Services District - Notice of Compliance Evaluation Letter 2025 | San Miguel Community Services District - Implementation Record Request Letter 2025 | | | |
| San Pablo | | | | | |
| San Rafael | San Rafael - Notice of Compliance Evaluation 2024 | San Rafael - Implementation Record Request Letter 2024 | | | |
| San Ramon | | | | | |
| San Simeon Community Services District | San Simeon Community Services District - Notice of Compliance Evaluation Letter 2025 | San Simeon Community Services District - Implementation Record Request Letter 2025 | | | |
| Sand City | | | | | |
| Sanger | | | | | |
| Santa Ana | | | | | |
| Santa Barbara | | | | | |
| Santa Barbara-Unincorporated | Santa Barbara-Unincorporated - Notice of Compliance Evaluation Letter 2025 | Santa Barbara-Unincorporated - Implementation Record Request Letter 2025 | | | |
| Santa Clara | | | | | |
| Santa Clara-Unincorporated | | | | | |
| Santa Clarita | Santa Clarita - Notice of Compliance Evaluation Letter 2025 | Santa Clarita - Implementation Record Request Letter 2025 | | | |
| Santa Cruz | | | | | |
| Santa Cruz-Unincorporated | | | | | |
| Santa Fe Springs | Santa Fe Springs - Notice of Compliance Evaluation 2024 | Santa Fe Springs - Implementation Record Request Letter 2023 | | | |
| Santa Lucia Community Services District | Santa Lucia Community Services District - Notice of Compliance Evaluation Letter 2025 | Santa Lucia Community Services District - Implementation Record Request Letter 2025 | | | |
| Santa Maria | Santa Maria - Notice of Compliance Evaluation Letter 2025 | Santa Maria - Implementation Record Request Letter 2025 | | | |
| Santa Monica | | | | | |
| Santa Paula | | | | | |
| Santa Rosa | Santa Rosa - Notice of Compliance Evaluation 2024 | Santa Rosa - Implementation Record Request Letter 2023 | | | |
| Santee | | | | | |
| Saratoga | | | | | |
| Sausalito | Sausalito - Notice of Compliance Evaluation 2024 | Sausalito - Implementation Record Request Letter 2023 | | | |
| Scotts Valley | Scotts Valley - Notice of Compliance Evaluation Letter 2025 | Scotts Valley - Implementation Record Request Letter 2025 | | | |
| Seal Beach | Seal Beach - Notice of Compliance Evaluation 2024 | Seal Beach - Implementation Record Request Letter 2023 | | | |
| Seaside | | | | | |
| Sebastopol | Sebastopol - Notice of Compliance Evaluation 2024 | Sebastopol - Implementation Record Request Letter 2023 | | | |
| Selma | | | | | |
| Shafter | Shafter - Notice of Compliance Evaluation Letter 2025 | Shafter - Implementation Record Request Letter 2025 | | | |
| Shasta Lake | Shasta Lake - Notice of Compliance Evaluation Letter 2025 | Shasta Lake - Implementation Record Request Letter 2025 | | | |
| Shasta-Unincorporated | Shasta-Unincorporated - Notice of Compliance Evaluation Letter 2023 | Shasta -Unincorporated - Implementation Record Request Letter 2023 | | | |
| Sierra Madre | | | | | |
| Sierra-Unincorporated | | | | | |
| Signal Hill | | | | | |
| Simi Valley | | | | | |
| Siskiyou-Unincorporated | | | | | |
| Solana Beach | | | | | |
| Solano-Unincorporated | | | | | |
| Soledad | Soledad - Notice of Compliance Evaluation Letter 2025 | Soledad - Implementation Record Request Letter 2025 | | | |
| Solvang | Solvang - Notice of Compliance Evaluation Letter 2025 | Solvang - Implementation Record Request Letter 2025 | | | |
| Sonoma | Sonoma - Notice of Compliance Evaluation 2024 | Sonoma - Implementation Record Request Letter 2023 | | | |
| Sonoma-Unincorporated | Sonoma-Unincorporated - Notice of Compliance Evaluation Letter 2024 | Sonoma-Unincorporated - Implementation Record Request Letter 2024 | | | |
| Sonora | | | | | |
| South El Monte | | | | | |
| South Gate | South Gate - Notice of Compliance Evaluation 2024 | South Gate - Implementation Record Request Letter 2023 | | | |
| South Lake Tahoe | | | | | |
| South Pasadena | | | | | |
| South San Francisco | South San Francisco - Notice of Compliance Evaluation 2024 | South San Francisco - Implementation Record Request Letter 2023 | | | |
| St Helena | | | | | |
| Stallion Springs Community Services District | | | | | |
| Stanislaus-Unincorporated | Stanislaus Unincorporated - Notice of Compliance Evaluation 2024 | Stanislaus Unincorporated - Implementation Record Request Letter 2023 | | | |
| Stanton | Stanton - Notice of Compliance Evaluation 2024 | Stanton - Implementation Record Request Letter 2023 | | | |
| Stinson Beach County Water District | Stinson Beach County Water District - Notice of Compliance Evaluation Letter 2025 | Stinson Beach County Water District - Implementation Record Request Letter 2025 | | | |
| Stockton | | | | | |
| Stratford Public Utility District | Stratford Public Utility District - Notice of Compliance Evaluation Letter 2025 | Stratford Public Utility District - Implementation Record Request Letter 2025 | | | |
| Strawberry Recreation District | Strawberry Recreation District - Notice of Compliance Evaluation Letter 2025 | Strawberry Recreation District - Implementation Record Request Letter 2025 | | | |
| Suisun City | | | | | |
| Sunnyvale | | | | | |
| Sunset Beach Sanitary District | | | | | |
| Susanville | | | | | |
| Sutter Creek | | | | | |
| Sutter-Unincorporated | Sutter-Unincorporated - Notice of Compliance Evaluation Letter 2023 | Sutter-Unincorporated - Implementation Record Request Letter 2023 | | | |
| Taft | | | | | |
| Tamalpais Community Services District | Tamalpais Community Services District - Notice of Compliance Evaluation Letter 2025 | Tamalpais Community Services District - Implementation Record Request Letter 2025 | | | |
| Tehachapi | | | | | |
| Tehama | | | | | |
| Tehama-Unincorporated | | | | | |
| Temecula | | | | | |
| Temple City | | | | | |
| Templeton Community Services District | Templeton Community Services District - Notice of Compliance Evaluation Letter 2025 | Templeton Community Service District - Implementation Record Request Letter 2025 | | | |
| Thousand Oaks | | | | | |
| Tiburon | Tiburon - Notice of Compliance Evaluation 2024 | Tiburon - Implementation Record Request Letter 2024 | | | |
| Torrance | | | | | |
| Tracy | | | | | |
| Trinidad | | | | | |
| Trinity-Unincorporated | | | | | |
| Truckee | Truckee - Notice of Compliance Evaluation Letter 2025 | Truckee - Implementation Record Request Letter 2025 | | | |
| Tulare | Tulare - Notice of Compliance Evaluation Letter 2025 | Tulare - Implementation Record Request Letter 2025 | | | |
| Tulare-Unincorporated | | | | | |
| Tulelake | | | | | |
| Tuolumne-Unincorporated | | | | | |
| Turlock | Turlock - Notice of Compliance Evaluation 2024 | Turlock - Implementation Record Request Letter 2023 | | | |
| Tustin | | | | | |
| Twentynine Palms | Twentynine Palms - Notice of Compliance Evaluation Letter 2025 | Twentynine Palms - Implementation Record Request Letter 2025 | | | |
| Ukiah | | | | | |
| Union City | | | | | |
| Upland | Upland - Notice of Compliance Evaluation Letter 2025 | Upland - Implementation Record Request Letter 2025 | | | |
| Vacaville | Vacaville - Notice of Compliance Evaluation 2024 | Vacaville - Implementation Record Request Letter 2023 | | | |
| Vallejo | Vallejo - Notice of Compliance Evaluation 2024 | Vallejo - Implementation Record Request Letter 2023 | | | |
| Ventura-Unincorporated | Ventura-Unincorporated - Notice of Compliance Evaluation Letter 2025 | Ventura-Unincorporated - Implementation Record Request Letter 2025 | | | |
| Vernon | Vernon - Notice of Compliance Evaluation 2024 | Vernon - Implementation Record Request Letter 2023 | | | |
| Victorville | | | | | |
| Villa Park | | | | | |
| Visalia | | | | | |
| Vista | | | | | |
| Walnut | | | | | |
| Walnut Creek | | | | | |
| Wasco | | | | | |
| Waterford | Waterford - Notice of Compliance Evaluation 2024 | Waterford - Implementation Record Request Letter 2023 | | | |
| Watsonville | Watsonville - Notice of Compliance Evaluation Letter 2025 | Watsonville - Implementation Record Request Letter 2025 | | | |
| Weed | | | | | |
| West Bay Sanitary District | | | | | |
| West Covina | | | | | |
| West Hollywood | West Hollywood - Notice of Compliance Evaluation Letter 2025 | West Hollywood - Implementation Record Request Letter 2025 | | | |
| West Sacramento | | | | | |
| Westlake Village | Westlake Village - Notice of Compliance Evaluation Letter 2025 | Westlake Village - Implementation Record Request Letter 2025 | | | |
| Westminster | Westminster - Notice of Compliance Evaluation 2024 | Westminster - Implementation Record Request Letter 2023 | | | |
| Westmorland | Westmorland - Notice of Compliance Evaluation Letter 2025 | Westmorland - Implementation Record Request Letter 2025 | | | |
| Wheatland | Wheatland - Notice of Compliance Evaluation Letter 2023 | Wheatland - Implementation Record Request Letter 2023 | Wheatland - Compliance Evaluation Findings Report 2025 | Wheatland - Notice of Violation - Jun 10, 2025 | Compliance Achieved Sep 8, 2025. |
| Whittier | Whittier - Notice of Compliance Evaluation Letter 2023 | Whittier - Implementation Record Request Letter 2023 | | | |
| Wildomar | | | | | |
| Williams | | | | | |
| Willits | | | | | |
| Willows | | | | | |
| Windsor | Windsor - Notice of Compliance Evaluation 2024 | Windsor - Implementation Record Request Letter 2023 | | | |
| Winters | | | | | |
| Woodbridge Sanitary District | | | | | |
| Woodlake | | | | | |
| Woodland | | | | | |
| Woodside | | | | | |
| Wrightwood Community Services District | | | | | |
| Yolo-Unincorporated | | | | | |
| Yorba Linda | | | | | |
| Yountville | | | | | |
| Yreka | | | | | |
| Yuba City | Yuba City - Notice of Compliance Evaluation Letter 2023 | Yuba City - Implementation Record Request Letter 2023 | | | |
| Yuba-Unincorporated | Yuba-Unincorporated - Notice of Compliance Evaluation Letter 2023 | Yuba-Unincorporated - Implementation Record Request Letter 2023 | | | |
| Yucaipa | Yucaipa - Notice of Compliance Evaluation 2024 | Yucaipa - Implementation Record Request Letter 2024 | | | |
| Yucca Valley | Yucca Valley - Notice of Compliance Evaluation Letter 2025 | Yucca Valley - Implementation Record Request Letter 2025 | | | |