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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HEMMI ROAD WATER ASSOCIATION
WA5332350 · 236 served
HEMPLE CREEK PICNIC CAMPGROUND
WA53FS362 · 83 served
HENDERSON BAY
WA5377147 · 61 served
HENDERSON BOULEVARD
WA5308359 · 418 served
Henderson Park Development Company
WA5332380 · 45 served
HENDRICKSON SHORT PLAT
WA5308146 · 8 served
Henleys Resort Water System
WA5308204 · 56 served
HERITAGE COLLEGE DAYCARE
WA53AA741 · 541 served
Heritage Ranch-Bow
WA53AE410 · 91 served
HERITAGE ROW
WA5301886 · 25 served
Heritage University Water System
WA53AA941 · 750 served
HERITAGE UNIVERSITY WATER SYSTEM
1053AA941 · 750 served
HERITAGE UNIVERSITY WATER SYSTEM #2
WA53AA966 · 375 served
HERITAGE WEST
WA5305898 · 70 served
HERMOSA POINT WATER ASSOC
WA5332470 · 105 served
HERMOSILLO WATER SYSTEM
WA53AA039 · 11 served
HERON LAKE COMMUNITY WELL ASSOC.
WA5304170 · 6 served
HERTER'S WATER SYSTEM
WA5300432 · 25 served
HESLEP ESTATES
WA5354201 · 30 served
HETRICK-MEYERS BROADVIEW TRACT
WA5332560 · 48 served
HEYSMAN RANCH WELL NO. 2
WA5307338 · 18 served
HGH INC WATER SYSTEM
WA5302141 · 613 served
HI LO HOMEOWNERS ASSN
WA5385203 · 87 served
HI LO ORCHARD LTD
WA5307357 · 5 served
HI VALLEY VIEW
WA5300431 · 67 served
HI-COLOR ORCHARD FARMWORKER HOUSING
WA53AC993 · 53 served
Hi-Point 2
WA53AE137 · 93 served
Hi-Point Housing
WA53AD259 · 96 served
HIAPARK
WA5303224 · 360 served
HIDDEN ACRES NONPROFIT H20 ASSN
WA5307564 · 14 served
HIDDEN ACRES WATER SYSTEM
WA5327486 · 63 served
HIDDEN CAMPGROUND
WA53FS365 · 25 served
HIDDEN CAMPGROUND
WA1500365 · 25 served
HIDDEN COVE #1 WATER
WA5332633 · 25 served
HIDDEN GARDENS HOMEOWNERS COOP
WA5315483 · 66 served
HIDDEN HAVEN MOBILE HOME PARK
WA5332660 · 149 served
HIDDEN HEIGHTS
WA5300944 · 35 served
HIDDEN HILL WATER
WA5332643 · 25 served
HIDDEN HILLS ESTATES
WA5332642 · 39 served
HIDDEN RIDGE WATER SYSTEM
WA5308222 · 2 served
HIDDEN VALLEY CAMP
WA5332646 · 183 served
HIDDEN VALLEY GUEST RANCH
WA5332648 · 43 served
HIDDEN VALLEY WATER ASSN
WA5301796 · 65 served
HIDDEN VALLEY WATER ASSOC
WA5332649 · 25 served
Hiddendale Div 1 & 3 Lower
WA5306808 · 17 served
HIDE-AWAY WATER COMPANY INC
WA5366586 · 240 served
HIDEAWAY MOBILE HOME PARK
WA5332653 · 202 served
HIGH COUNTRY OUTFITTERS/CAMP WAHOO,
WA5342369 · 30 served
High Line Housing
WA53AD651 · 96 served
HIGH PLACE 1
WA5307369 · 2 served