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 |
|---|---|---|---|---|
| BEESINGER WATER SYSTEM | CA2700510 | California | Community | 410 |
| HHW&P MOCCASIN COMPOUND-SFPUC | CA3810003 | California | Community | 410 |
| ORANGE CENTER SCHOOL | CA1000276 | California | Non-Transient Non-Community | 410 |
| FAIRVIEW SCHOOL | CA5400843 | California | Non-Transient Non-Community | 410 |
| LEISURE MOBILE HOME PARK | CA4900832 | California | Community | 410 |
| PALO VERDE COUNTY WATER DIST. | CA1300616 | California | Community | 410 |
| Table Mountain Upper | 090605133 | California | Community | 410 |
| Round Valley Piner | 090605015 | California | Community | 409 |
| BALLS FERRY FISHING RESORT | CA4500054 | California | Community | 408 |
| TRIPLE R MUTUAL WATER CO | CA5400670 | California | Community | 408 |
| Big Sandy Rancheria | 090600121 | California | Community | 408 |
| JOSEPH GALLO CHEESE CO. | CA2400206 | California | Non-Transient Non-Community | 407 |
| MID - BARRETT COVE | CA2209035 | California | Transient Non-Community | 407 |
| JOSHUA TREE NP - BLACK ROCK CANYON | CA3310502 | California | Transient Non-Community | 407 |
| SONOMA COUNTY CSA 41-JENNER | CA4900532 | California | Community | 406 |
| CHRISTIAN LIFE ASSEMBLY WATER SYSTEM | CA1503646 | California | Transient Non-Community | 406 |
| VOLTA COMMUNITY SD | CA2400201 | California | Community | 406 |
| ACTON ELEMENTARY SCHOOL | CA1900960 | California | Transient Non-Community | 405 |
| LODI USD-HOUSTON SCHOOL | CA3900850 | California | Non-Transient Non-Community | 405 |
| MYOMA DUNES MUTUAL WATER COMPA | CA3301453 | California | Community | 405 |
| PAUL REIFF & SONS | CA5700644 | California | Transient Non-Community | 405 |
| THOUSAND TRAILS OAKZANITA INC. | CA3700873 | California | Transient Non-Community | 404 |
| CSP - RED ROCK CANYON | CA1510300 | California | Transient Non-Community | 404 |
| LAGUNA VISTA SCHOOL/OCEANVIEW SCHOOL DIS | CA5602403 | California | Non-Transient Non-Community | 404 |
| JH RANCH | CA4700807 | California | Transient Non-Community | 403 |
| MOONEY GROVE PARK | CA5400951 | California | Transient Non-Community | 402 |
| CSP-GOAT ROCK STATE BEACH | CA4910313 | California | Transient Non-Community | 402 |
| FRESNO HMONG ALLIANCE CHURCH | CA1000406 | California | Transient Non-Community | 402 |
| LAS CUMBRES MUTUAL WATER CO | CA4400631 | California | Community | 402 |
| STONE LAGOON-STATE PARKS | CA1210321 | California | Transient Non-Community | 402 |
| JOSAN AND JOSAN, INC. | CA1000520 | California | Transient Non-Community | 402 |
| KOA - PETALUMA | CA4900737 | California | Transient Non-Community | 401 |
| KERN CO P&R-LAKE WOOLLOMES WATER SYSTEM | CA1502319 | California | Transient Non-Community | 401 |
| HARBIN HOT SPRINGS | CA1700511 | California | Non-Transient Non-Community | 401 |
| CALIFORNIA CORRECTIONS | CA1502360 | California | Transient Non-Community | 400 |
| STEVENS CREEK COUNTY PARK | CA4300782 | California | Transient Non-Community | 400 |
| WEST GOSHEN MUTUAL WATER CO | CA5400957 | California | Community | 400 |
| FAITH MISS OUTREACH, INC | CA2200071 | California | Transient Non-Community | 400 |
| DAYLOR WILLIAM | CA3400252 | California | Transient Non-Community | 400 |
| MONARCH NUT COMPANY | CA5403140 | California | Non-Transient Non-Community | 400 |
| GSA TECATE PORT OF ENTRY | CA3710048 | California | Non-Transient Non-Community | 400 |
| WIENERSCHNITZEL | CA3901120 | California | Transient Non-Community | 400 |
| LAKE SHERWOOD | CA5603102 | California | Community | 400 |
| MONTEREY BAY ACADEMY | CA4400755 | California | Community | 400 |
| GOLD ARROW CAMP | CA1000158 | California | Transient Non-Community | 400 |
| Camp Yolijwa | CA3600757 | California | Transient Non-Community | 400 |
| CO OF SAN JOAQUIN | CA3900955 | California | Transient Non-Community | 400 |
| PLA-VADA PROP OWNERS ASSOC | CA2900509 | California | Transient Non-Community | 400 |
| RUTH LAKE C S D | CA5300057 | California | Transient Non-Community | 400 |
| CITIZENS UTILITIES CO | CA3410117 | California | Community | 400 |