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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YOKOHL RANCH WATER SYSTEM
CA5410053 · 0 served
YOLANDA BUSINESS PARK
CA4900888 · 70 served
YOLO BYPASS WILDLIFE AREA
CA5700532 · 25 served
YOLO CO AIRPORT
CA5700714 · 114 served
YOLO CO CENTRAL LANDFILL
CA5700778 · 40 served
YOLO CO HOUSING AUTHORITY
CA5700656 · 40 served
YOLO CO HOUSING AUTHORITY-EL RIO VILLA
CA5700615 · 432 served
YOLO FLIERS CLUB
CA5700652 · 415 served
YOLO FRUIT STAND - WATER
CA5700543 · 30 served
YOLO SPORTSMEN'S ASSOC
CA5700653 · 30 served
YONGS BAR & GRILL WATER SYSTEM
CA3901308 · 30 served
YORBA LINDA WATER DISTRICT
CA3010037 · 84,292 served
Yorba Slaughter Adobe Museum
CA3601068 · 25 served
YORK CREEK VINEYARDS
CA2800643 · 10 served
YORKVILLE MARKET
CA2300904 · 25 served
YOSEMITE ALPINE
CA2203002 · 75 served
YOSEMITE ALPINE
CA2200002 · 75 served
YOSEMITE ALPINE CSD
CA2210923 · 38 served
YOSEMITE ALPINE VILLAGE
CA2203015 · 110 served
YOSEMITE ALPINE VILLAGE
CA2200015 · 110 served
YOSEMITE BIBLE CAMP
CA2000048 · 200 served
YOSEMITE BUG HOSTEL
CA2210927 · 122 served
YOSEMITE FORKS EST MUTUAL
CA2000527 · 110 served
YOSEMITE FORKS MTN HOUSE RESTAURANT
CA2000258 · 50 served
YOSEMITE GATEHOUSE LODGE
CA5500206 · 25 served
YOSEMITE HIGH SCHOOL
CA2000567 · 862 served
YOSEMITE HIGHLANDS WATER CO
CA5500084 · 105 served
YOSEMITE INN
CA5500122 · 55 served
YOSEMITE INN - PWS
CA3901198 · 50 served
YOSEMITE LAKES CAMPGROUND
CA5500030 · 413 served
YOSEMITE LAKES COMMUNITY CHURCH
CA2000202 · 551 served
YOSEMITE NATIONAL PARK - CHINQUAPIN
CA2210514 · 26 served
YOSEMITE NPS - FORRESTA CAMP
CA2210507 · 25 served
YOSEMITE NPS - VERNAL FALLS
CA2210518 · 3,000 served
YOSEMITE NPS-ARCH ROCK
CA2210516 · 200 served
YOSEMITE NPS-BADGER PASS
CA2210513 · 1,000 served
YOSEMITE NPS-BRIDALVEIL CREEK CG
CA2210512 · 450 served
YOSEMITE NPS-BRIDALVEIL FALL
CA2210519 · 1,163 served
YOSEMITE NPS-CASCADE
CA2210553 · 25 served
YOSEMITE NPS-CRANE FLAT
CA2210508 · 500 served
YOSEMITE NPS-EL PORTAL
CA2210515 · 635 served
YOSEMITE NPS-GLACIER POINT
CA2210511 · 4,000 served
YOSEMITE NPS-GLEN AULIN
CA5510502 · 150 served
YOSEMITE NPS-HODGDON MEADOW
CA5510503 · 51 served
YOSEMITE NPS-MARIPOSA GROVE
CA2010500 · 3,500 served
YOSEMITE NPS-MATHER RANGER
CA5510505 · 25 served
YOSEMITE NPS-MAY LAKE CAMP
CA2210500 · 300 served
YOSEMITE NPS-MERCED LAKE CAMP
CA2210504 · 150 served
YOSEMITE NPS-SUNRISE HI
CA2210505 · 150 served
YOSEMITE NPS-TENAYA LAKE
CA2210501 · 1,000 served