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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MADRONO WATER CO.
WA5350220 · 27 served
MAGGIE LAKE WATER DISTRICT
WA5350235 · 287 served
MAGNA VISTA WATER CORP
WA5350240 · 56 served
Mahaffey
WA5350290 · 49 served
MAHARAJA RESTAURANT
WA5339814 · 125 served
MAHONEYVILLE WATER ASSOC
WA5350295 · 60 served
MAID O CLOVER CORP
WA5308279 · 52 served
MAIN WATER USERS ASSOCIATION
WA5308179 · 12 served
MAINLAND VIEW MANOR
WA5347248 · 143 served
MAINS FARM PROPERTY OWNERS
WA5350400 · 358 served
MAINS GIFT SHOP
WA5326276 · 2 served
MAJESTIC MOBILE MANOR
WA5350425 · 238 served
Majestic Oaks Water System
WA5355860 · 28 served
MAKAH AFB-SYSTEM 1
WA5350443 · 180 served
MAKAH AFB-SYSTEM 2
WA5350444 · 30 served
MAKAH NEAH BAY
105300012 · 1,300 served
MAKAH WATER UTILITIES
WA5350450 · 25 served
Makah-AFS Base & Housing
105300039 · 10 served
Makah-AFS Peak WTP
105300040 · 10 served
Makah-Trailer Court
105300041 · 10 served
Malaga Market
WA5393986 · 38 served
MALAGA WATER DISTRICT
WA5350500 · 2,478 served
MALAGA WATER USERS
WA5350509 · 42 served
MALDEN WATER DEPT
WA5350550 · 215 served
MALLARD BAY RESORT
WA5304193 · 44 served
MALLARD COVE
WA5350570 · 115 served
MALLARD HAVEN WATER COMPANY
WA5319185 · 29 served
MALLARDS LANDING WATER SYSTEM
WA5350575 · 25 served
MALONE
WA5350600 · 181 served
MALONE SPRINGS
WA5307933 · 2 served
MALONE WATER SYSTEM
WA5350602 · 25 served
MALOTT
105300033 · 95 served
MANASTASH CG/CLE ELUM RD
WA53FS106 · 50 served
MANCHESTER FUEL DEPT
WA5358585 · 50 served
MANCHESTER STATE PARK
WA53SP500 · 874 served
MANCHESTER WATER DISTRICT
WA5350700 · 10,475 served
MANHASSET SPECIALTY COMPANY
WA5351915 · 142 served
MANLEY WATER USERS ASSN
WA5307865 · 10 served
MANOR FARM INN
WA5307071 · 200 served
MANSFIELD WATER SYSTEM
WA5350850 · 380 served
MANTHEYS COUNTRY MOBILE PARK
WA5350900 · 120 served
MANY LAKES MOBILE HOME PARK
WA5304670 · 37 served
MANZANITA BEACH
WA5350994 · 93 served
MANZANITA WATER ASSN
WA5351000 · 41 served
MAPLE 2 502
WA5307717 · 15 served
MAPLE FALLS WATER COOP
WA5351100 · 222 served
MAPLE GLEN COMMUNITY ASSOCIATION
WA5351115 · 130 served
MAPLE GROVE
WA5363277 · 132 served
MAPLE GROVE BEACH WATER ASSN
WA5351130 · 41 served
MAPLE GROVE MOTEL
WA5360394 · 15 served