Browse Water Systems
20,012 public water systems in CA.
Public Water Systems Database
Browse 20,012 EPA-regulated public water systems with identifiers, population served, and water source type. Use the filters below to narrow results by state, system type, or name.
| System Name | PWSID | State | Type | Population Served |
|---|---|---|---|---|
| PALOMAR MOUNTAIN MUTUAL WATER CO. | CA3700933 | California | Community | 193 |
| ROARING CAMP RAILROAD INC | CA4400825 | California | Transient Non-Community | 193 |
| MPWD-COULTERVILLE CSA 1 | CA2210901 | California | Community | 193 |
| WESTERN MWD (ID A - RAINBOW) | CA3310076 | California | Community | 192 |
| ACORN VILLAGE MOBILE HOME PARK | TX1012333 | California | Community | 192 |
| ACCELERATED CHARTER HIGH SCHOOL | CA5400538 | California | Non-Transient Non-Community | 192 |
| EAST TULE LAKE WATER DIST | CA2500808 | California | Community | 192 |
| AUBERRY LDS CHURCH | CA1000609 | California | Transient Non-Community | 192 |
| EAST TULELAKE WATER DIST | CA4700867 | California | Community | 192 |
| MAGIC WATERS MOBILE HOME PARK | CA3301412 | California | Community | 192 |
| CEDAR STOCK RESORT | CA5300055 | California | Transient Non-Community | 192 |
| EAST TULE LAKE WATER DIST | CA2500558 | California | Community | 192 |
| PESCADERO HIGH SCHOOL | CA4100513 | California | Non-Transient Non-Community | 192 |
| LAS FLORES WATER WORKS | CA5200502 | California | Community | 191 |
| CSP BENICIA STATE PARK | CA4810300 | California | Transient Non-Community | 191 |
| RIO MESA GOLF INC | CA2000245 | California | Transient Non-Community | 190 |
| REVOL GREENS | CA1503682 | California | Non-Transient Non-Community | 190 |
| Susanville Upper Rancheria | 090605150 | California | Community | 190 |
| OCEAN BREEZE TRAILER PARK | CA3000601 | California | Community | 190 |
| CAMP JACK HAZARD | CA5500151 | California | Transient Non-Community | 190 |
| RUSTLERS | CA5403068 | California | Transient Non-Community | 190 |
| TOLAS WATERWORKS CO OP | NV0000055 | California | Community | 190 |
| CARAVAN MOBILEHOME PARK | CA4500060 | California | Community | 190 |
| U.C. KEARNEY FIELD STATION | CA1000279 | California | Non-Transient Non-Community | 190 |
| MT. GEORGE ESTATE | CA2801023 | California | Community | 190 |
| SHEPHERD OF THE HILLS - TEHACHAPI | CA1503680 | California | Transient Non-Community | 190 |
| SIERRA ELEMENTARY SCHOOL | CA1000313 | California | Non-Transient Non-Community | 190 |
| CHAD MUTUAL WATER COMPANY | CA1500549 | California | Community | 190 |
| SANTA CRUZ WALDORF SCHOOL | CA4400875 | California | Non-Transient Non-Community | 190 |
| GEORGE SILER | CA5000052 | California | Community | 190 |
| PLACER CWA - APPLEGATE | CA3110050 | California | Community | 190 |
| FRESNO CLOVIS RWRF WATER SYSTEM | CA1010057 | California | Non-Transient Non-Community | 190 |
| RONALD LAKEMAN | CA5400862 | California | Community | 190 |
| BRIDGE CAMP | CA5301014 | California | Transient Non-Community | 190 |
| LINWOOD MUTUAL WATER COMPANY | CA5400853 | California | Community | 190 |
| WATERVIEW MOBILE HOME PARK | VA4073800 | California | Community | 189 |
| ROYAL PALMS MOBILE HOME PARK | CA5700645 | California | Community | 189 |
| SHAMROCK MOBILE HOME PARK | CA4900723 | California | Community | 188 |
| PARK WEST MUTUAL WATER COMPANY | CA1400110 | California | Community | 188 |
| MONTE VISTA FARMING | CA5000603 | California | Non-Transient Non-Community | 188 |
| SILVER OAK WINE CELLARS | CA2801038 | California | Non-Transient Non-Community | 188 |
| CASPAR SOUTH SERVICE COMPANY | CA2300610 | California | Community | 188 |
| AWA LA MEL HEIGHTS #3 | CA0310019 | California | Community | 188 |
| KEN'S SHOPPING CENTER | CA1000611 | California | Transient Non-Community | 187 |
| FERN GROVE WATER CLUB | CA4400572 | California | Community | 187 |
| WOODRIDGE MUTUAL WATER CO | CA4500235 | California | Community | 187 |
| KELSO ACTIVITY CENTER | CA1000422 | California | Non-Transient Non-Community | 187 |
| CSP CASTLE ROCK STATE PARK | CA4410314 | California | Transient Non-Community | 187 |
| MONTEREY PARK TRACT CSD | CA5000389 | California | Community | 186 |
| CAMPBELL SOUP DIXON | CA4800727 | California | Non-Transient Non-Community | 186 |