Browse Water Systems
20,002 public water systems in CA.
Public Water Systems Database
Browse 20,002 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 |
|---|---|---|---|---|
| VALLEY VIEW YORKSHIRE PACKING COMPANY | CA4300727 | California | Non-Transient Non-Community | 1,000 |
| CALTRANS-WEED REST STOP | CA4700557 | California | Transient Non-Community | 1,000 |
| CALTRANS PHILLIP S. RAINE SFTY RSRA SB | CA5401047 | California | Transient Non-Community | 1,000 |
| CAMP LOTUS WATER SYSTEM | CA0900205 | California | Transient Non-Community | 1,000 |
| PACIFIC COAST PRODUCERS | CA5700636 | California | Transient Non-Community | 1,000 |
| YOSEMITE NPS-YOSEMITE VALLEY | CA2210503 | California | Community | 1,000 |
| SUTTER SANTA ROSA REGIONAL HOSPITAL | CA4901370 | California | Non-Transient Non-Community | 1,000 |
| HENNINGSEN LOTUS PARK WATER SYSTEM | CA0900212 | California | Transient Non-Community | 1,000 |
| VETERANS HOME OF CALIFORNIA | CA2810008 | California | Community | 1,000 |
| THE PUB WATER SYSTEM | CA0900216 | California | Transient Non-Community | 1,000 |
| SAN MATEO HIGH SCHOOL | CA4100518 | California | Non-Transient Non-Community | 1,000 |
| L A COUNTY WATER DISTRICT #21 | CA1900096 | California | Community | 1,000 |
| FREMONT PEAK S.P COLD SPRING | CA3510301 | California | Transient Non-Community | 1,000 |
| OASIS DRINKING WATER | CA3301471 | California | Community | 1,000 |
| STOCKTON BALLROOM | CA3900770 | California | Transient Non-Community | 1,000 |
| GREEN PRADO WATER COMPANY | CA3301159 | California | Community | 1,000 |
| TULARE WESTERN HIGH SCHOOL | CA5400720 | California | Transient Non-Community | 1,000 |
| DEER RIDGE INN | CA0300046 | California | Transient Non-Community | 1,000 |
| DEPARTMENT OF TRANSPORTATION | CA4510900 | California | Transient Non-Community | 1,000 |
| MARTINIS BAIT & TACKLE | CA3900767 | California | Transient Non-Community | 1,000 |
| EASTON AUTHORITY JPA | CA1000221 | California | Non-Transient Non-Community | 1,000 |
| CARMEL VALLEY | CA2701149 | California | Community | 1,000 |
| MAMMOTH LAKES BASIN | CA2600729 | California | Transient Non-Community | 1,000 |
| OUTLETS NORTH PHOENIX | AZ0407189 | California | Non-Transient Non-Community | 1,000 |
| LOOMIS COMMUNITY PARK | CA3103247 | California | Transient Non-Community | 1,000 |
| S J CO MAINTENANCE DEPT | CA3900506 | California | Transient Non-Community | 1,000 |
| LOOMIS CHEVRON | CA3103245 | California | Transient Non-Community | 1,000 |
| YOSEMITE NPS-BADGER PASS | CA2210513 | California | Transient Non-Community | 1,000 |
| KING ISLAND RESORT PWS | CA3900666 | California | Transient Non-Community | 1,000 |
| TEAGUE ELEMENTARY SCHOOL | CA1000334 | California | Non-Transient Non-Community | 1,000 |
| HAGGIN OAKS GOLF COURSE (SWS) | CA3400281 | California | Non-Transient Non-Community | 1,000 |
| REEF CITY CAFE | CA1600284 | California | Transient Non-Community | 1,000 |
| BAKER COMMUNITY SERVICES DISTRICT | CA3600022 | California | Community | 1,000 |
| TIO TOCHO'S | CA1600272 | California | Transient Non-Community | 1,000 |
| ANTELOPE VALLEY WATER CO | CA1510037 | California | Community | 1,000 |
| DE ANZA SPRINGS RESORT | CA3702703 | California | Transient Non-Community | 1,000 |
| FRESNO AIR NATIONAL GUARD | CA1000350 | California | Non-Transient Non-Community | 1,000 |
| GONZALES SCHOOLS WS **CLOSED** | CA2701989 | California | Non-Transient Non-Community | 999 |
| DELTA SUGAR CO TREATED RIVER | CA5700762 | California | Non-Transient Non-Community | 999 |
| LIBBY MC NEILL & L INC. | CA4300805 | California | Transient Non-Community | 999 |
| SUTTER-YUBA FAIRGROUNDS | CA5103001 | California | Transient Non-Community | 999 |
| CAMP SILVERADO | CA0300004 | California | Transient Non-Community | 999 |
| GOLD BLUFFS BEACH CG-STATE PARKS | CA1210320 | California | Transient Non-Community | 998 |
| LOS ANGELES CWWD 40, REG. 39-ROCK CREEK | CA1910025 | California | Community | 994 |
| BRIARWOOD MOBILE HOME PARK | CA1900670 | California | Transient Non-Community | 992 |
| DEMPSEY ROAD MUTUAL WATER CO | CA5610001 | California | Community | 990 |
| MONTANA DE ORO STATE PARK | CA4010305 | California | Transient Non-Community | 990 |
| GAVILAN JOINT COMMUNITY COLLEGE DISTRICT | CA4300608 | California | Non-Transient Non-Community | 989 |
| UPPER LAKE COUNTY WATER DISTRICT | CA1710009 | California | Community | 989 |
| CALTRANS CHESTER H. WARLOW SFTY RSRA | CA5401024 | California | Transient Non-Community | 985 |