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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NPS-DEVILS POSTPILE
CA2010501 · 1,220 served
NPS-DORST CG
CA5410519 · 900 served
NPS-GRANT GROVE
CA1010501 · 2,950 served
NPS-HOSPITAL ROCK
CA5410511 · 232 served
NPS-LODGEPOLE
CA5410502 · 35 served
NPS-PINEWOOD WATER SYSTEM
CA5410520 · 2,900 served
NPS-POTWISHA
CA5410512 · 210 served
NPS-SHEEP CREEK
CA1010500 · 2,900 served
NPS-WOLVERTON
CA5410503 · 2,940 served
NRG ENERGY COOLWATER
CA3601127 · 25 served
NRG ETIWANDA GENERATING STATION
CA3601124 · 100 served
NS MINI MART
CA5403053 · 140 served
NUESTRO SCHOOL
CA5100142 · 120 served
NUEVA VISTASCHOOL
CA3500543 · 34 served
NUEVO WATER COMPANY
CA3310026 · 6,733 served
NUGGET CAMPGROUND
CA0900204 · 1,000 served
NUNES COOLING
CA1000539 · 25 served
NUNES WATER COMPANY
CA4000505 · 24 served
NUNEZ WATER COMPANY
CA3500517 · 65 served
NUNZIO FEMINO
CA1100545 · 200 served
NUSS FARMS
CA3901413 · 0 served
NUTRILITE PRODUCTS INC
CA3301465 · 65 served
Nutritional Food Products
CA3301466 · 60 served
NVUSD: CAPELL VALLEY SCHOOL
CA2800844 · 100 served
NVUSD: CARNEROS SCHOOL
CA2800847 · 100 served
NVUSD: STONEBRIDGE SCHOOL
CA2800848 · 100 served
NVUSD: WOODEN VALLEY SCHOOL
CA2800845 · 100 served
NYACK TOWING
CA3100104 · 25 served
NYACK WATER SYSTEM
CA3103291 · 450 served
NYELAND ACRES MUTUAL WATER CO
CA5602111 · 975 served
O C SHERIFF DEPT TRAINING CENT
CA3000647 · 25 served
O E MAYOU
CA2700908 · 60 served
O HENRY S FARM HOUSE
CA3301473 · 25 served
O L PETERSEN
CA2701072 · 40 served
O ME-NOOK MAINTENANCE AND OPERATION
CA0800649 · 120 served
O NEILL PARK
CA3000789 · 25 served
O P MURPHY & SONS PACKING CO
CA2700995 · 40 served
O-G PACKING CO
CA3901382 · 25 served
O.A.R.S., INC #70
CA0900423 · 100 served
O'BANION ROAD MARKET
CA5101203 · 55 served
O'BANNON'S MOBILE HOME PARK
CA3501526 · 30 served
O'BRIEN HOLIDAY HARBOR
CA4500087 · 26 served
O'CONNOR HOSPITAL
CA4300808 · 2,500 served
O'CONNOR TRACT CO-OPERATIVE WATER CO.
CA4110019 · 2,789 served
O'MALLEYS DUCK INN
CA5000174 · 25 served
O'NEIL A M PODIATRY
CA3301478 · 1 served
O'NEILL VINTNERS & DISTILLERS
CA1000411 · 90 served
O'NEILL WATER SYSTEM
CA4300790 · 175 served
O'SHAUGHNESSY BACKPACK WELL
CA3810009 · 1 served
O'SHAUGHNESSY WINERY
CA2801936 · 25 served