Browse Water Systems
19,626 public water systems in CA.
Public Water Systems Database
Browse 19,626 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 |
|---|---|---|---|---|
| CDF - OWENS VALLEY CONSERVATION CAMP | CA1410800 | California | Community | 94 |
| RANCHO DEL PARADISO-CAL WATER SVC (PUC) | CA4900514 | California | Community | 94 |
| LOMAS DEL SOL MWS | CA2701918 | California | Community | 93 |
| VENTURA COUNTY WATER DISTRICT | CA5601123 | California | Community | 93 |
| REDWOODS MAIN WATER SYSTEM | CA2210915 | California | Transient Non-Community | 93 |
| Upper Lake Dewell System | 090605026 | California | Community | 93 |
| LYTTON SPRINGS WINERY | CA4901220 | California | Transient Non-Community | 93 |
| MICHELE MUTUAL WATER COMPANY | CA4900552 | California | Community | 93 |
| BELLA VISTA WATER SYS | CA0707589 | California | Community | 93 |
| SAN MIGUEL WS #22 | CA2702073 | California | Community | 93 |
| BONADELLE RANCHOS NO. 2 MUTUAL WATER CO | CA2000529 | California | Community | 92 |
| WONDER ACRES WATER SYSTEM | CA1500324 | California | Community | 92 |
| LEISURE TIME RV PARK | CA2300633 | California | Transient Non-Community | 92 |
| SUNNYGEM JUICE PLANT | CA1503671 | California | Non-Transient Non-Community | 92 |
| VISTA DEL TORO WS | CA2700799 | California | Community | 92 |
| OAK MANOR WS | CA2700509 | California | Community | 92 |
| BEVERLY GRAND MUTUAL WATER | CA5400651 | California | Community | 92 |
| DEL ORO WATER CO - METROPOLITAN DISTRICT | CA1000057 | California | Community | 92 |
| SPLIT MOUNTAIN WATER COMPANY | CA1500573 | California | Community | 92 |
| MCCOY RD WS #05 | CA2701040 | California | Community | 92 |
| AMISTAD | CA5700515 | California | Transient Non-Community | 92 |
| SORARES WATER SUPPLY | CA4000546 | California | Community | 92 |
| TWIN PINES MOBILEHOME PARK | CA1500508 | California | Community | 92 |
| LANE ACRES WATER COMPANY | CA1500384 | California | Community | 92 |
| NISHI QUALITY FLOWERS, INC. | CA5603116 | California | Non-Transient Non-Community | 92 |
| CORTLAND PINES MUTUAL WATER CO | CA4500009 | California | Community | 92 |
| TUD-PEACEFUL PINES WATER SYSTEM | CA5510021 | California | Community | 92 |
| CHARLES SAMPLEY | CA1502400 | California | Transient Non-Community | 92 |
| TROPICO WATER SYSTEM | CA1502287 | California | Community | 92 |
| LE CUVIER WINERY | CA4000872 | California | Transient Non-Community | 92 |
| RAPID RIVER MOBILEHOME PARK | CA4500203 | California | Community | 92 |
| MAURLAND MANOR WATER SYSTEM | CA3900543 | California | Community | 92 |
| TEHAMA ECOLOGY CENTER | CA7300403 | California | Community | 92 |
| ROBLEY PROPERTY MWS | CA2701822 | California | Community | 92 |
| RANCHO FIESTA | CA2701890 | California | Community | 92 |
| SILVER OAK WINE CELLARS LLC | CA4901374 | California | Non-Transient Non-Community | 91 |
| LIVINGSTON PROPERTIES | CA2400249 | California | Transient Non-Community | 91 |
| THE MADRONES | CA2300970 | California | Transient Non-Community | 91 |
| SIERRA VILLAGE | CA5500093 | California | Community | 91 |
| GREENHEART FARMS | CA4000211 | California | Non-Transient Non-Community | 91 |
| HOOT OWL CREEK/ALEX. VALLEY VINEYARDS JV | CA4901135 | California | Non-Transient Non-Community | 91 |
| LELAND CREEK-WATER SYSTEM | CA5500028 | California | Transient Non-Community | 91 |
| ENCINAL RD WS #01 | CA2701241 | California | Community | 91 |
| EBRPD - SUNOL REGIONAL WILDERNESS | CA0105012 | California | Transient Non-Community | 91 |
| DAVIS MIGRANT CENTER (CIUDAD DEL SOL) | CA5700539 | California | Non-Transient Non-Community | 91 |
| SNO BOWL WATER CO | CA5500078 | California | Community | 91 |
| RAY MOLES FARMS (MARKS AVE) | CA1000452 | California | Transient Non-Community | 90 |
| CABRILLO VILLAGE | CA5601208 | California | Community | 90 |
| RAWSON CREEK MUTUAL WATER COMPANY | CA1400026 | California | Community | 90 |
| Z BEST PRODUCTS | CA4300993 | California | Non-Transient Non-Community | 90 |