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 |
|---|---|---|---|---|
| SJ OAK GROVE REGIONAL PARK | CA3901140 | California | Transient Non-Community | 1,000 |
| CALTRANS-WEED REST STOP | CA4700557 | California | Transient Non-Community | 1,000 |
| KING ISLAND RESORT PWS | CA3900666 | California | Transient Non-Community | 1,000 |
| BARRETT COVE REC AREA | CA2200035 | California | Transient Non-Community | 1,000 |
| MARTINIS BAIT & TACKLE | CA3900767 | California | Transient Non-Community | 1,000 |
| GREEN PRADO WATER COMPANY | CA3301159 | California | Community | 1,000 |
| STOCKTON BALLROOM | CA3900770 | California | Transient Non-Community | 1,000 |
| RANCHO MARIA GOLF COURSE | CA4200865 | California | Transient Non-Community | 1,000 |
| CARMEL VALLEY | CA2701149 | California | Community | 1,000 |
| L A COUNTY WATER DISTRICT #21 | CA1900096 | California | Community | 1,000 |
| USBR-TUTTLETOWN REC AREA | CA5500010 | California | Transient Non-Community | 1,000 |
| FRESNO AIR NATIONAL GUARD | CA1000350 | California | Non-Transient Non-Community | 1,000 |
| CAL TRANS - COSO JUNCTION | CA1400115 | California | Transient Non-Community | 1,000 |
| GOLFLAND WATER SYSTEM | CA3901237 | California | Transient Non-Community | 1,000 |
| CAMP LOTUS WATER SYSTEM | CA0900205 | California | Transient Non-Community | 1,000 |
| MARIPOSA COUNTY FAIRGROUND | CA2200070 | California | Transient Non-Community | 1,000 |
| KNOCTI HARBOR INN | CA1700586 | California | Community | 1,000 |
| BAGBY RECREATIONAL AREA | CA2200067 | California | Transient Non-Community | 1,000 |
| STANISLAUS COUNTY | CA5000168 | California | Transient Non-Community | 1,000 |
| HOT AUGUST NIGHTS | CA3901364 | California | Transient Non-Community | 1,000 |
| CAMPING UNLIMITED - Deac | CA4400712 | California | Transient Non-Community | 1,000 |
| MC SWAIN REC AREA | CA2200065 | California | Transient Non-Community | 1,000 |
| YOSEMITE NPS-YOSEMITE VALLEY | CA2210503 | California | Community | 1,000 |
| CALTRANS-TRINIDAD NB | CA1200754 | California | Transient Non-Community | 1,000 |
| Shields Date Gardens | CA3301618 | California | Transient Non-Community | 1,000 |
| DEER RIDGE INN | CA0300046 | California | Transient Non-Community | 1,000 |
| ELKHORN I-5 REST AREA | CA3400131 | California | Transient Non-Community | 1,000 |
| 99 SHELL* | CA3901208 | California | Transient Non-Community | 1,000 |
| LEGG LAKE COUNTY PARK-WHITTIER NARROWS | CA1900017 | California | Non-Transient Non-Community | 1,000 |
| VETERANS HOME OF CALIFORNIA | CA2810008 | California | Community | 1,000 |
| BACKSPIN GOLF CENTER | CA3901361 | California | Transient Non-Community | 1,000 |
| PG&E NO 3 POWERHOUSE & | CA2000541 | California | Transient Non-Community | 1,000 |
| Campo Casino (Golden Acorn Casino) | 090605158 | California | Non-Transient Non-Community | 1,000 |
| FREMONT PEAK S.P COLD SPRING | CA3510301 | California | Transient Non-Community | 1,000 |
| CA STATE PARKS - EMERALD BAY, EAGLE POIN | CA0910303 | California | Transient Non-Community | 1,000 |
| TIO TOCHO'S | CA1600272 | California | Transient Non-Community | 1,000 |
| REEF CITY CAFE | CA1600284 | California | Transient Non-Community | 1,000 |
| SUTTER SANTA ROSA REGIONAL HOSPITAL | CA4901370 | California | Non-Transient Non-Community | 1,000 |
| BRADSHAW CHRISTIAN SCHOOL | CA3400391 | California | Non-Transient Non-Community | 1,000 |
| MAMMOTH LAKES BASIN | CA2600729 | California | Transient Non-Community | 1,000 |
| CAMP SILVERADO | CA0300004 | California | Transient Non-Community | 999 |
| GONZALES SCHOOLS WS **CLOSED** | CA2701989 | California | Non-Transient Non-Community | 999 |
| LIBBY MC NEILL & L INC. | CA4300805 | California | Transient Non-Community | 999 |
| DELTA SUGAR CO TREATED RIVER | CA5700762 | California | Non-Transient Non-Community | 999 |
| SUTTER-YUBA FAIRGROUNDS | CA5103001 | 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 |