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 |
|---|---|---|---|---|
| CAMP TAWONGA | CA5500141 | California | Transient Non-Community | 505 |
| COSTAJO ARCO AMPM | CA1503687 | California | Transient Non-Community | 505 |
| MOUNTAIN MEADOWS MWC | CA2600620 | California | Community | 505 |
| ANGELES SHOOTING RANGES | CA1900761 | California | Transient Non-Community | 505 |
| CAPITOL STATE PARKS | CA2110309 | California | Transient Non-Community | 504 |
| KRISTA MUTUAL WATER COMPANY | CA1500475 | California | Community | 504 |
| CSP - MT TAM THEATRE WELL | CA2110301 | California | Transient Non-Community | 504 |
| WHITE LOTUS | CA4200949 | California | Transient Non-Community | 503 |
| GREENGATE RANCH & VINEYARDS | CA4000833 | California | Transient Non-Community | 503 |
| CSP-STANDISH HICKEY STATE REC AREA | CA2310310 | California | Transient Non-Community | 503 |
| CSP - TOMALES BAY ST PARK | CA2110303 | California | Transient Non-Community | 503 |
| WHITEWATER PRESERVE | CA3301750 | California | Transient Non-Community | 503 |
| CSP-WRIGHTS BEACH STATE PARK | CA4910308 | California | Transient Non-Community | 502 |
| PEARLAND ACRES MHP | TX0200353 | California | Community | 501 |
| OAKWOOD LAKE RESORT | CA3900881 | California | Community | 501 |
| SIERRA TAHOE GRANDVIEW | CA0900658 | California | Transient Non-Community | 500 |
| MENDOCINO COUNTY FAIRGROUNDS | CA2300950 | California | Transient Non-Community | 500 |
| UOP | CA3901170 | California | Community | 500 |
| FRANKLIN ELEMENTARY SCHOOL | CA3100071 | California | Non-Transient Non-Community | 500 |
| CAMPO HILLS-COUNTY PUBLIC WORKS WASTEWTR | CA3710047 | California | Community | 500 |
| SONOMA TRANSFER STATION | CA4901047 | California | Transient Non-Community | 500 |
| ANNETT'S MONO VILLAGE | CA2600529 | California | Transient Non-Community | 500 |
| PLACER ELEMENTARY SCHOOL | CA3100070 | California | Non-Transient Non-Community | 500 |
| BIG MEADOW TRAILHEAD | CA0900527 | California | Transient Non-Community | 500 |
| WILLOWS HIGH SCHOOL | CA1100256 | California | Transient Non-Community | 500 |
| BERRYESSA PARK HDQTRS | CA2800573 | California | Transient Non-Community | 500 |
| EASTIN ARCOLA SCHOOL | CA2000599 | California | Non-Transient Non-Community | 500 |
| CHIMNEY ROCK GOLF COURSE | CA2800576 | California | Transient Non-Community | 500 |
| LSID - TONYVILLE | CA5410007 | California | Community | 500 |
| WEST PUTNAM SCHOOL - INACTIVE | CA5400979 | California | Non-Transient Non-Community | 500 |
| JALAPENOS WATER SYSTEM | CA0900522 | California | Transient Non-Community | 500 |
| SAN LORENZO PARK | CA2702083 | California | Transient Non-Community | 500 |
| KINGS RIVER ELEMENTARY SCHOOL | CA5400624 | California | Non-Transient Non-Community | 500 |
| IMPERIAL COUNTY HOSPITAL | CA1300541 | California | Community | 500 |
| GREENAMEYER BROTHERS WATER SY | CA2201009 | California | Community | 500 |
| BSA-CAMP WHITSETT | CA5401010 | California | Transient Non-Community | 500 |
| IRVINE REGIONAL PARK | CA3000770 | California | Transient Non-Community | 500 |
| THE BROKEN BIT | CA2000543 | California | Transient Non-Community | 500 |
| CSP-MENDOCINO HEADLANDS-SEA ARCH | CA2310308 | California | Transient Non-Community | 500 |
| PALO VERDE UNION ELEMENTARY SCHOOL | CA5400519 | California | Non-Transient Non-Community | 500 |
| NPS-DEATH VALLEY-THORNDYKE - INACTIVE | CA1410501 | California | Transient Non-Community | 500 |
| EAGLE FALLS | CA0900533 | California | Transient Non-Community | 500 |
| TRACT 92 COMMUNITY SERVICES DISTRICT | CA5400903 | California | Community | 500 |
| LSID-STRATHMORE SYSTEM | CA5410036 | California | Community | 500 |
| MILLPOND RECREATION AREA | CA1400047 | California | Transient Non-Community | 500 |
| MORGAN HILL USD-BURNETT SCHOOL | CA4300583 | California | Non-Transient Non-Community | 500 |
| CHICO EASTSIDE LITTLE LEAGUE | CA0400166 | California | Transient Non-Community | 500 |
| JON P RAPAZZINI | CA4300855 | California | Transient Non-Community | 500 |
| TRACT 92 C.S.D. | CA5403004 | California | Community | 500 |
| ESCALON UNIFIED SCHOOL DIST | CA3901166 | California | Non-Transient Non-Community | 500 |