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 |
|---|---|---|---|---|
| RIO DELL, CITY OF | CA1210012 | California | Community | 3,300 |
| KAVANAGH VISTA WATER COMPANY | CA1010037 | California | Community | 3,300 |
| SOUTH SHORE RECREATION AREA | CA0900649 | California | Non-Transient Non-Community | 3,300 |
| LUKINS BROTHERS WATER COMPANY | CA0910007 | California | Community | 3,277 |
| RINCON DEL DIABLO MWD (ID-A) | CA3710044 | California | Community | 3,275 |
| DEUEL VOCATIONAL INSTITUTION | CA3910800 | California | Community | 3,271 |
| LAKE DON PEDRO CSD | CA5510008 | California | Community | 3,240 |
| Arizona Village | 090400300 | California | Community | 3,211 |
| PROVIDENCE MTNS SRA | CA3610300 | California | Transient Non-Community | 3,203 |
| BIG SUR STATE PARK | CA2701276 | California | Transient Non-Community | 3,200 |
| MURPHY RANCH MUTUAL WTR C | CA1910093 | California | Community | 3,200 |
| RANCHO LOS AMIGOS HOSPITAL | CA1900679 | California | Non-Transient Non-Community | 3,200 |
| BLM-BRICEBURG WATER SYSTEM | CA2210933 | California | Transient Non-Community | 3,196 |
| YUBA CITY GROUNDWATER REGION 1 | CA5115001 | California | Community | 3,185 |
| VALLEY STATE PRISON | CA2010801 | California | Community | 3,173 |
| MADERA CO MD10A-MADERA RANCHOS | CA2010008 | California | Community | 3,172 |
| CWSC OAK HILLS | CA2710019 | California | Community | 3,161 |
| BURNEY WATER DISTRICT | CA4510003 | California | Community | 3,154 |
| Buena Vue Casino | 090605117 | California | Non-Transient Non-Community | 3,150 |
| PLACER CWA - COLFAX | CA3110006 | California | Community | 3,149 |
| CITY OF NEVADA CITY | CA2910002 | California | Community | 3,148 |
| AMARILLO MUTUAL WATER COMPANY | CA1910002 | California | Community | 3,134 |
| SAN ANTONIO WATER COMPANY | CA3610085 | California | Community | 3,111 |
| HOME GARDENS COUNTY WD | CA3310018 | California | Community | 3,095 |
| SO CA WATER CO-VICTORVILLE 4 | CA3610106 | California | Community | 3,076 |
| SHASTA C.S.D. | CA4510013 | California | Community | 3,069 |
| MARYGOLD MWC | CA3610028 | California | Community | 3,055 |
| LITTLEROCK CREEK IRRIGATION DIST. | CA1910064 | California | Community | 3,040 |
| HIGH DESERT DETENTION CENTER | CA3601182 | California | Community | 3,035 |
| PRUNEDALE CENTRAL CSA NO.74 | CA2710015 | California | Community | 3,031 |
| CSP - BIG BASIN STATE PARK | CA4410301 | California | Community | 3,029 |
| MODOC COUNTY FAIR | CA2500704 | California | Transient Non-Community | 3,025 |
| TWIN LAKES STATE BEACH | CA4410312 | California | Transient Non-Community | 3,013 |
| PETITE PANTRY | CA1400147 | California | Transient Non-Community | 3,012 |
| Avi Casino | 090400302 | California | Community | 3,001 |
| DEUEL VOCATIONAL INSTITUTION | CA7300122 | California | Community | 3,000 |
| SMITH FORKS WATER SYSTEM | CA5601725 | California | Transient Non-Community | 3,000 |
| CASILLAS WATER SYSTEM | CA5403047 | California | Transient Non-Community | 3,000 |
| SWEETWATER SPRINGS CWD - MONTE RIO | CA4910028 | California | Community | 3,000 |
| SANTA CLARA VALLEY MEDICAL CENTER | CA4300833 | California | Non-Transient Non-Community | 3,000 |
| EL CAMINO HOSPITAL | CA4300816 | California | Non-Transient Non-Community | 3,000 |
| WESTINGHOUSE ELECTRIC CORP | CA4300788 | California | Transient Non-Community | 3,000 |
| GUADALUPE MUNICIPAL IMPROVEMEN | CA4100572 | California | Transient Non-Community | 3,000 |
| ROCKYS RESTAURANT | CA3901247 | California | Transient Non-Community | 3,000 |
| STATE OF CA DEPT OF PARKS | CA3301862 | California | Transient Non-Community | 3,000 |
| LOMA LINDA UNIVERSITY | CA3301394 | California | Transient Non-Community | 3,000 |
| KNOTT S BERRY FARM | CA3000734 | California | Non-Transient Non-Community | 3,000 |
| SALINAS VALLEY FAIR GROUNDS | CA2701722 | California | Transient Non-Community | 3,000 |
| SOLEDAD STATE CORRECTIONAL FAC | CA2701177 | California | Community | 3,000 |
| YOSEMITE NPS - VERNAL FALLS | CA2210518 | California | Transient Non-Community | 3,000 |