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Browse Water Systems

10,030 public water systems in WA.

Public Water Systems Database

Browse 10,030 EPA-regulated public water systems with identifiers, population served, and water source type. Use the filters below to narrow results by state, system type, or name.

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System Name PWSID State Type Population Served
ASOTIN WATER DEPT WA5303250 Washington Community 2,531
7 CEDARS CASINO 105300108 Washington Non-Transient Non-Community 2,530
JOHNSTON RIDGE OBSERVATORY WA53FS021 Washington Transient Non-Community 2,506
SKOKOMISH PARK LOWER LOOP 105338104 Washington Transient Non-Community 2,503
STEVENS CO PUD - LOON LAKE WA5348250 Washington Community 2,487
WENBERG STATE PARK WA53SP980 Washington Transient Non-Community 2,484
MALAGA WATER DISTRICT WA5350500 Washington Community 2,478
OCEAN CITY STATE PARK WA53SP600 Washington Transient Non-Community 2,478
KITSAP MEMORIAL STATE PK WA53SP345 Washington Transient Non-Community 2,438
NOOKSACK WATER DEPT WA5359800 Washington Community 2,427
WILLAPA VALLEY WATER DISTRICT WA5397100 Washington Community 2,425
BLACK DIAMOND WATER DEPT WA5307220 Washington Community 2,420
BELFAIR STATE PARK WA53SP060 Washington Transient Non-Community 2,411
SWINOMISH CASINO & LODGE 105338108 Washington Non-Transient Non-Community 2,400
CHEROKEE BAY COMMUNITY CLUB INC WA5311626 Washington Community 2,400
CARNATION WATER SYSTEM CITY OF WA5311200 Washington Community 2,400
SOAP LAKE WATER DEPT WA5381300 Washington Community 2,399
IONE WATER DEPT WA5335900 Washington Community 2,395
TONASKET WATER SYSTEM WA5388700 Washington Community 2,392
BOISTFORT VALLEY WA5307610 Washington Community 2,389
GLACIER WATER DISTRICT WA5395915 Washington Community 2,383
PACIFIC BEACH/MOCLIPS WA5300333 Washington Community 2,372
CRESCENT WATER ASSN WA5316020 Washington Community 2,360
TIMBERLAKE COMMUNITY CLUB INC WA5388370 Washington Community 2,337
BADGER MOUNTAIN IRRIGATION DISTRICT WA5322617 Washington Community 2,331
ANGEL OF THE WINDS 105311105 Washington Non-Transient Non-Community 2,303
SPRAGUE LAKE EB REST AREA WA53HD749 Washington Transient Non-Community 2,286
JACKSON PARK NAVAL HOSPITAL WA5305345 Washington Community 2,277
WHITE RIVER ENTRANCE WA53NP940 Washington Transient Non-Community 2,277
WHITE RIVER CAMPGROUND #11 WA53NP960 Washington Transient Non-Community 2,263
WANAPUM STATE PARK WA53SP975 Washington Transient Non-Community 2,263
EAST ENTRANCE MT RAINIER WA53NP840 Washington Transient Non-Community 2,263
OSOYOOS LAKE STATE PARK WA53SP617 Washington Transient Non-Community 2,262
BLAKE ISLAND STATE PARK WTR WA53SP080 Washington Transient Non-Community 2,260
VALLEY WATER SYSTEM WA5301250 Washington Community 2,259
ALPINE WATER DISTRICT WA5325315 Washington Community 2,255
WEST KITSAP WA5308367 Washington Community 2,248
KITTITAS CITY OF WA5342650 Washington Community 2,247
Darrington Town of WA5317950 Washington Community 2,246
SUNLAND WATER DISTRICT WA5385260 Washington Community 2,235
WASHINGTON CORRECTIONS CENTER WA5393063 Washington Community 2,223
HURRICANE RIDGE WA53NP390 Washington Transient Non-Community 2,221
GRAYLAND BEACH STATE PARK WA53SP320 Washington Transient Non-Community 2,219
BRIDGEPORT CITY OF WA5308350 Washington Community 2,214
North Spokane Irrigation District 8 WA5361300 Washington Community 2,214
CLE ELUM WATER DEPARTMENT WA5313500 Washington Community 2,213
SHELTER BAY COMMUNITY INC WA5378155 Washington Community 2,212
STAFFORD CREEK CORRECTIONS CENTER WA5307975 Washington Community 2,200
THREE LAKES WATER ASSOCIATION WA5388150 Washington Community 2,198
RYEGRASS EB/WB REST AREA WA53HD625 Washington Transient Non-Community 2,184