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 |
|---|---|---|---|---|
| CROOKHAM SCHOOL | CA2400069 | California | Transient Non-Community | 350 |
| TRES PINOS CWD | CA3500509 | California | Community | 350 |
| MOUNTAIN JACKS | MI2000828 | California | Non-Transient Non-Community | 350 |
| HENSLEY LAKE - HIDDEN DAM | CA2000555 | California | Transient Non-Community | 350 |
| HERNDON-BARSTOW SCHOOL | CA1000108 | California | Non-Transient Non-Community | 350 |
| GREEN RIVER MUTUAL WATER CO. | CA4000554 | California | Community | 350 |
| SAC CITY MOBILE HOME COMMUNITY LP | CA3400296 | California | Community | 350 |
| SIERRA PACIFIC INDUSTRIES - WINDOWS | CA5201143 | California | Non-Transient Non-Community | 350 |
| CALAVERAS BIG TREES SP, NORTH GROVE | CA0510302 | California | Transient Non-Community | 350 |
| SUNSET WEST COMMUNITY LLC | CA1000378 | California | Community | 350 |
| BUTTONWILLOW RACEWAY PARK CIRCUIT | CA1504014 | California | Transient Non-Community | 350 |
| CALTRANS-MASSACK REST STOP | CA3200009 | California | Transient Non-Community | 350 |
| SIERRA PACIFIC INDUSTRIES - RICHFIELD | CA5201055 | California | Non-Transient Non-Community | 350 |
| MUSCO FAMILY OLIVE CO | CA3901429 | California | Non-Transient Non-Community | 348 |
| THREE PALMS MOBILEHOME PARK | CA1000299 | California | Community | 347 |
| CHEMEKETA PARK MUTUAL WATER COMPANY | CA4300517 | California | Community | 346 |
| DIXON MIGRANT CENTER | CA4800804 | California | Non-Transient Non-Community | 346 |
| SHAVER LAKE HEIGHTS WATER ASSN | CA1000069 | California | Community | 345 |
| BEN KUTCH | CA0707538 | California | Non-Transient Non-Community | 345 |
| BIG BEND CAMPGROUND | CA2600596 | California | Transient Non-Community | 345 |
| SHERWOOD MOBILE HOME PARK | TX0610061 | California | Community | 345 |
| SANTA YSABEL RANCH MWC | CA4000802 | California | Community | 344 |
| CAL AM - RAYMOND | CA2010012 | California | Community | 343 |
| CSP LA PURISIMA MISSION | CA4210301 | California | Transient Non-Community | 342 |
| EL CAPITAN MIDDLE SCHOOL | CA1000205 | California | Non-Transient Non-Community | 342 |
| NAVELENCIA SCHOOL | CA1000193 | California | Non-Transient Non-Community | 342 |
| COLONIAL PARK | CA4900721 | California | Community | 342 |
| AVERYDALE MUTUAL | CA1900506 | California | Community | 342 |
| ARBOR MOBILE HOME PARK WS | CA3900831 | California | Community | 340 |
| WILLIAM G LANDRY | CA1100541 | California | Transient Non-Community | 340 |
| JOHNS MANVILLE | CA1100232 | California | Non-Transient Non-Community | 340 |
| SHARONDALE MESA HOA | CA3301879 | California | Community | 340 |
| DEL ORO WATER CO.-MAGALIA | CA0410009 | California | Community | 340 |
| TOOLEVILLE MUTUAL NON PROFIT WATER ASSN | CA5400567 | California | Community | 340 |
| SEQUOIA FOREST INDUSTRIES | CA5402049 | California | Community | 340 |
| RIVER SHORE ESTATES-BIA | CA3600366 | California | Community | 340 |
| SAN ANTONIO MOBILE HOME PARK | CA3301380 | California | Community | 340 |
| LEISURE PINES MUTUAL WATER CO | CA5500053 | California | Community | 340 |
| VISTA PARK MUTUAL WATER CO | CA1500036 | California | Community | 340 |
| PONDEROSA CSD | CA5400934 | California | Community | 340 |
| VERDE VALE ELEMENTARY SCHOOL | CA4500193 | California | Non-Transient Non-Community | 340 |
| SISAR MUTUAL WATER CO | CA5601120 | California | Community | 340 |
| LIGHT HOUSE MARINA | CA3400136 | California | Transient Non-Community | 340 |
| SOUTH COAST INN | CA4200717 | California | Transient Non-Community | 339 |
| MORGAN HILL USD-GWINN SCHOOL | CA4300600 | California | Non-Transient Non-Community | 339 |
| PORTERVILLE-JONES CORNER | CA5410048 | California | Community | 339 |
| TRINITY KNOLLS MUTUAL WATER COMPANY | CA5301102 | California | Community | 338 |
| WASHINGTON SCHOOL | CA2400071 | California | Non-Transient Non-Community | 338 |
| YMCA CAMP MARSTON/RAINTREE | CA3700912 | California | Community | 338 |
| ALDERCROFT HEIGHTS COUNTY WATER DISTRICT | CA4300516 | California | Community | 338 |