Water Systems
| Water System | Service Area | People Served | Contaminants detected |
|---|---|---|---|
MA Marin Municipal Water District | Marin County, CA | 193,937 | 25 |
SW Sweetwater Authority | San Diego County, CA | 189,371 | 29 |
ON Ontario Municipal Utilities Company | Ontario, CA | 185,010 | 33 |
CI City Of Stockton | Stockton, CA | 183,046 | 33 |
OC Oceanside, City Of | Oceanside, CA | 178,021 | 31 |
SA Santa Rosa, City Of | Santa Rosa, CA | 175,775 | 26 |
SC Scwa - Laguna/Vineyard | Sacramento County, CA | 174,999 | 25 |
CA California Water Service - Stockton | San Joaquin County, CA | 174,507 | 41 |
CI City Of Garden Grove | Garden Grove, CA | 174,226 | 26 |
PA Pasadena Water And Power | Pasadena, CA | 170,950 | 27 |