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 - DEATH VALLEY, COW CREEK/NEVARES
CA1410503 · 88 served
NPS - DEATH VALLEY, EMIGRANT RA/CG
CA1410509 · 150 served
NPS - DEATH VALLEY, FURNACE CREEK
CA1410505 · 150 served
NPS - DEATH VALLEY, GRAPEVINE RS
CA1410504 · 27 served
NPS - DEATH VALLEY, MESQUITE SPRINGS
CA1410500 · 35 served
NPS - DEATH VALLEY, SCOTTY S CASTLE
CA1410506 · 850 served
NPS - DEATH VALLEY, STOVEPIPE WELLS
CA1410502 · 175 served
NPS - DEATH VALLEY, WILDROSE CMPGD
CA1410507 · 35 served
NPS - DEATH VALLEY, WILDROSE PICNIC - IN
CA1410508 · 50 served
NPS - HOLE IN THE WALL CAMPGROUND
CA3600321 · 104 served
NPS - KELSO DEPOT
CA3610301 · 254 served
NPS - LA MESA VILLAGE
CA2710703 · 0 served
NPS - MANZANAR
CA1410511 · 298 served
NPS - MID HILLS
CA3600322 · 30 served
NPS - POINT RAYES - GLEN CAMP
CA2110504 · 25 served
NPS - POINT REYES - COAST CAMP
CA2110506 · 25 served
NPS - POINT REYES - SKY CAMP
CA2110507 · 25 served
NPS - ZZYZX DESERT STUDIES CENTER
CA3600323 · 29 served
NPS (NATIONAL PARK SERVICE)
CA2210506 · 0 served
NPS CHANNEL ISLANDS NAT. PARK
CA4210500 · 25 served
NPS GGNRA
CA2110350 · 18,447 served
NPS GOLDEN GATE NRA
CA2110508 · 25 served
NPS GOLDEN GATE NRA
CA2110509 · 25 served
NPS KINGS CANYON NP
CA1010502 · 25 served
NPS LASSEN VOLCANIC ND
CA3210500 · 25 served
NPS LASSEN VOLCANIC ND
CA3210501 · 25 served
NPS LASSEN VOLCANIC NP
CA1810500 · 15,000 served
NPS LASSEN VOLCANIC NP
CA3210502 · 25 served
NPS LASSEN VOLCANIC NP
CA4510500 · 62 served
NPS LASSEN VOLCANIC NP
CA4510501 · 25 served
NPS LASSEN VOLCANIC NP
CA4510502 · 25 served
NPS LASSEN VOLCANIC NP
CA4510509 · 25 served
NPS LASSEN VOLCANIC NP
CA4510510 · 1,800 served
NPS PRNS - BEACHES
CA2110502 · 1,560 served
NPS PRNS - FIVE BROOKS
CA2110010 · 365 served
NPS PRNS - FIVE BROOKS
CA2110528 · 200 served
NPS PRNS - GLEN AND WILDCAT CAMPGROUNDS
CA2110503 · 1,200 served
NPS PRNS - LAGUNA SYSTEM
CA2110501 · 316 served
NPS PRNS - LIGHTHOUSE
CA2110500 · 1,202 served
NPS PRNS - SKY CAMP CAMPGROUND
CA2110505 · 75 served
NPS SEQUOIA NP
CA5410501 · 25 served
NPS SEQUOIA NP
CA5410504 · 25 served
NPS SEQUOIA NP
CA5410506 · 25 served
NPS SEQUOIA NP
CA5410516 · 25 served
NPS-ASH MOUNTAIN
CA5410513 · 2,930 served
NPS-ATWELL MILL
CA5410515 · 80 served
NPS-BUCKEYE FLAT
CA5410510 · 350 served
NPS-COLD SPRINGS
CA5410517 · 240 served
NPS-CRYSTAL CAVE PK LOT
CA5410509 · 300 served
NPS-DEATH VALLEY-THORNDYKE - INACTIVE
CA1410501 · 500 served