Utilities in California
18,760 systems (SDWIS/Fed snapshot). Search or browse pages — open any row for PFAS monitoring, violation counts, and filter recommendations.
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SAN JUAN MOTEL/HOOD TRAILER PARK
CA3400176 · 22 served
SAN JUAN OAKS GOLF CLUB
CA3500903 · 450 served
SAN JUAN RANCH
CA2400178 · 20 served
SAN JUAN RD WATER SYSTEM #9
CA2701636 · 28 served
SAN JUAN RD WS #01
CA2700733 · 49 served
SAN JUAN ROAD WATER SYSTEM - 4
CA2701402 · 30 served
SAN JUAN ROAD WATER SYSTEM #3
CA2700735 · 28 served
SAN JUAN ROAD WATER SYSTEM 3
CA2701478 · 30 served
SAN JUAN UNIFIED SCH DST
CA3400339 · 100 served
SAN JUAN VISTA
CA3901215 · 201 served
SAN JUAN WATER DISTRICT
CA3410021 · 29,598 served
SAN JUSTO MUTUAL WATER COMPANY
CA3500550 · 160 served
SAN LORENZO PARK
CA2702083 · 500 served
SAN LORENZO SEMINARY
CA4200915 · 130 served
SAN LORENZO VALLEY WATER DIST
CA4410014 · 21,145 served
SAN LORENZO WOODS
CA4400622 · 145 served
SAN LUCAS COUNTY WATER DISTRICT
CA2701676 · 315 served
SAN LUIS BUSINESS PARK
CA4000711 · 100 served
SAN LUIS CREEK RECREATION AREA
CA2400106 · 1,000 served
SAN LUIS HILLS
CA2400209 · 779 served
SAN LUIS OBISPO
CA4000720 · 25 served
SAN LUIS OBISPO CSA 1G- BLACK LAKE
CA4010021 · 0 served
SAN LUIS OBISPO WATER DEPARTMENT
CA4010009 · 47,788 served
San Luis R.V. Resort CLOSED
CA2400050 · 100 served
SAN LUIS REY PICNIC GROUND
CA3700036 · 100 served
SAN LUIS SOURDOUGH - INACTIVE
CA4000773 · 60 served
SAN LUIS WATER & POWER
CA4000635 · 24 served
SAN LUIS WATER DISTRICT-FOX HILLS
CA2410019 · 0 served
SAN MARCOS CHRISTIAN CAMP
CA4200644 · 75 served
SAN MARCOS MUTUAL WATER COMPANY
CA4200580 · 120 served
SAN MARTIN COUNTY WATER DISTRICT
CA4300542 · 627 served
SAN MARTIN FOOTHILLS WATER COMPANY
CA4300638 · 145 served
SAN MARTIN LIONS CLUB
CA4300839 · 30 served
SAN MARTIN TIRE WATER COMPANY
CA4300786 · 75 served
SAN MARTIN VINEYARDS
CA4300621 · 25 served
SAN MARTIN WINERY
CA4300597 · 25 served
SAN MARTIN WINERY
CA4300817 · 500 served
SAN MATEO COUNTY MEMORIAL PARK
CA4100536 · 1,790 served
SAN MATEO HIGH SCHOOL
CA4100518 · 1,000 served
SAN MIGUEL CANYON ROAD WATER S
CA2700747 · 81 served
SAN MIGUEL CANYON WATER SYSTEM
CA2700744 · 30 served
SAN MIGUEL CANYON WATER SYSTEM
CA2700739 · 25 served
SAN MIGUEL CANYON WATER SYSTEM
CA2700745 · 18 served
San Miguel CBP
090400218 · 25 served
SAN MIGUEL COMMUNITY SERVICES DISTRICT
CA4010010 · 2,600 served
SAN MIGUEL WATER SYSTEM #17
CA2701867 · 25 served
SAN MIGUEL WS #01
CA2700738 · 100 served
SAN MIGUEL WS #03
CA2700740 · 45 served
SAN MIGUEL WS #22
CA2702073 · 93 served
SAN MIGUELITO MWC
CA4010003 · 1,600 served