Utilities in Washington
9,956 systems (SDWIS/Fed snapshot). Search or browse pages — open any row for PFAS monitoring, violation counts, and filter recommendations.
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HARBOR CREST
WA5301832 · 53 served
HARBOR GROVE ASSN
WA5330990 · 30 served
HARBOR HEIGHTS
WA5331001 · 188 served
HARBOR HEIGHTS WATER
WA5331000 · 25 served
HARBOR HILL
WA5331003 · 43 served
HARBOR HILLS COMMUNITY WATER SYSTEM
WA5333860 · 1,373 served
HARBOR MOBILE ESTATES
WA5331005 · 72 served
Harbor Montessori Creekside
WA53AB940 · 45 served
HARBOR ON FISHERMAN BAY
WA5331024 · 84 served
HARBOR SHORES
WA5318851 · 33 served
HARBOR VIEW MOBILE HOME PARK
WA5331065 · 114 served
HARBORLAND MOBILE PARK
WA5331075 · 92 served
Harborview Fellowship Water System
WA5306874 · 44 served
HARD RAIN CAFE & MERCANTILE
WA5325000 · 137 served
HARDEL MUTUAL PLYWOOD
WA5331140 · 80 served
Hardin Housing Water System
WA53AD482 · 83 served
HARDPAN WATER CO
WA5331150 · 25 served
HARKLEROAD WATER
WA53AA078 · 4 served
HARKNESS WATER SYSTEM
WA53AA243 · 1 served
HARLEM ENT. LLC
WA5365505 · 17 served
HARMAN HEIGHTS WATER ASSOC
WA5331300 · 30 served
HARMONS MOBILE HOME COURT
WA5331343 · 49 served
HARMONY GRADE SCHOOL
WA5331355 · 325 served
HARMONY HILL
WA5300195 · 41 served
HARMONY PARK LOT OWNERS
WA5331362 · 81 served
Harmony RV Resorts
WA53AD248 · 55 served
HARMONY SPORTS
WA5354240 · 333 served
HARNDEN ISLAND VIEW WATER ASSN
WA5331366 · 25 served
HARPER EVANG. FREE CHURCH
WA5331375 · 60 served
HARRAH ELEMENTARY SCHOOL
WA5331390 · 327 served
HARRAH WATER SYSTEM
WA5331400 · 1,304 served
HARRINGTON CITY OF
WA5331450 · 650 served
HARRINGTON LAGOON WATER ASSN
WA5331440 · 26 served
HARRIS CUSTER ESTATES WATER ASSN
WA5317035 · 194 served
HARRIS ORCHARD #2
WA5331465 · 4 served
Harrison Medical Center - Bremerton
WA53AD616 · 2,627 served
HARRISON MOBILE HOME PARK
WA5331474 · 71 served
HARRISON RV PARK
WA5360342 · 104 served
HARRISON WATER USERS ASSN
WA53AA353 · 6 served
Harrison Well #2
WA53AB071 · 1,200 served
HARSTENE RETREAT
WA5331572 · 88 served
HARSTINE ISLAND COMMUNITY CLUB
WA5305063 · 44 served
HARSTINE ISLAND ESTATES ASSN
WA5331565 · 56 served
HART CREEK SUMMER HOMES
WA5331495 · 40 served
HART WATER SYSTEM #2
WA5307668 · 5 served
HARTLEY BRENT
WA5331497 · 143 served
HARTLINE WATER SYSTEM
WA5331500 · 249 served
HARTMAN WATER
WA5331540 · 25 served
HARTMANN, DICK WATER SYSTEM
WA5300866 · 30 served
HARTMANS LOG CABIN RESORT INC
WA5347671 · 397 served