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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KITZ SHORT PLAT WATER SYSTEM
WA53AA128 · 12 served
KLA-HA-YA WATER SYSTEM
WA5342740 · 310 served
KLAHANIE BEACH WATER SYSTEM
WA5342750 · 19 served
KLAHANIE CAMPGROUND
WA53FS464 · 200 served
KLAHANIE WATER
WA5343727 · 74 served
KLAHOWYA CAMPGROUND
WA53FS467 · 129 served
KLAHOWYA HOMESTEAD
WA5307433 · 18 served
KLEIN BICYCLE #2
WA5303075 · 25 served
KLEMGARD COUNTY PARK
WA5342775 · 157 served
KLICKER WATER SYSTEM 1
WA5315427 · 134 served
KLICKITAT WATER SYSTEM
WA5342800 · 551 served
KLINE WATER SYSTEM
WA53AA008 · 4 served
KLINGEMAN WELL
WA5307443 · 42 served
KLINKS RESORT LLC
WA5345622 · 105 served
KLIPCHUCK CG - METHOW RD
WA53FS471 · 149 served
KLIPSAN BEACH COTTAGES
WA5342833 · 25 served
KLIPSUN WATERS
WA5303407 · 27 served
Knife River Public Water Supply
WA53AE124 · 151 served
KNOWLES ROAD
WA5307970 · 13 served
KNOWLES TRAILER COURT
WA5342913 · 25 served
KOCHA WATER SYSTEM
WA5308488 · 9 served
KODIAK WATER SYSTEM
WA5308473 · 9 served
KOK ROAD WATER ASSN
WA5343000 · 120 served
KOKKO'S DRIVE INN
WA5315803 · 338 served
KOLZIG, OLIE WATER SYSTEM
WA5308299 · 5 served
KOMO KULSHAN GUARD STATIO
WA53F5478 · 25 served
KONTREE APARTMENTS WATER SYSTEM
WA5300119 · 60 served
KOOLEY S HARBOR ESTATES
WA5311514 · 58 served
Koontz Ranch Water System
WA53AD532 · 30 served
KOOSKOOSKIE CABIN OWNERS INC.
WA5334751 · 45 served
KOPACHUCK
WA5343065 · 236 served
KOPACHUCK MIDDLE & VOYAGER ELEM WS
WA5305549 · 1,150 served
KOPACHUCK RIDGE WATER DISTRICT
WA5328090 · 185 served
KOPACHUCK STATE PARK
WA53SP350 · 73 served
KOPKIE WATER SYSTEM
WA53AA217 · 2 served
Koppert Lake
WA53AC440 · 66 served
KORNER MARKET WATER SYSTEM
WA5307946 · 5 served
KOSKELA BLUEBERRY FARM
WA5307897 · 6 served
Kountry Korner
WA5343100 · 160 served
KOVAC'S
WA5310747 · 127 served
KOZY CAMP P E OFFICE
WA53HD370 · 25 served
KOZY KAMP TAVERN
WA5343115 · 50 served
KOZY KORNER COTTAGES
WA5343118 · 25 served
KOZY KORNER GROCERY
WA5343120 · 6 served
KOZY KORNER TRAILER PARK
WA5343121 · 25 served
KPM WATER SYSTEM
WA5306605 · 12 served
KRAGHT WATER SYSTEM
WA5308408 · 8 served
KRAIN WATER SUPPLY
WA5343140 · 161 served
KRESS LAKE 1
WA5307922 · 2 served
KRIEG WATER SYSTEM
WA5343172 · 45 served