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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
OTHELLO WATER DEPARTMENT WA5364850 Washington Community 8,755
UNION HILL WATER ASSOCIATION INC WA5390260 Washington Community 8,720
EPHRATA WATER DEPARTMENT WA5323650 Washington Community 8,620
STEILACOOM TOWN OF WA5384000 Washington Community 8,545
NE SAMMAMISH SEWER & WATER DISTRICT WA5375265 Washington Community 8,516
QUINCY WATER DEPARTMENT CITY OF WA5370450 Washington Community 8,415
YAK CO - TERRACE HEIGHTS WA5306029 Washington Community 8,410
COLLEGE PLACE WATER DEPT WA5314050 Washington Community 8,147
NORTH BEACH WATER WA5363000 Washington Community 8,093
MILTON CITY OF WA5354950 Washington Community 8,078
KALAMA CITY OF WA5337550 Washington Community 8,020
DECEPTION PASS SP - MAIN PARK WA53SP210 Washington Transient Non-Community 7,967
FIRCREST CITY OF WA5325150 Washington Community 7,927
PACIFIC CITY OF WA5365300 Washington Community 7,925
MODEL IRRIGATION DIST #18 WA5355550 Washington Community 7,903
TANGLEWILDE THOMPSON PLACE 600 WA5304397 Washington Community 7,900
STEVENS CO PUD - SUNCREST WA5385202 Washington Community 7,484
BUCKLEY WATER WA5309000 Washington Community 7,411
PEACOCK HILL WA5366637 Washington Community 7,401
NORTH BEND CITY OF WA5360100 Washington Community 7,228
SULTAN WATER DEPARTMENT WA5384770 Washington Community 7,160
WHITWORTH WATER DIST 2 SYSTEM 8 WA5396607 Washington Community 7,130
HOCKINSON WA5333570 Washington Community 7,062
GRANITE FALLS CITY OF WA5329050 Washington Community 6,926
LAKE CHELAN RECLAMATION DISTRICT WA5343783 Washington Community 6,798
INDIAN JOHN E B REST AREA WA53HD330 Washington Transient Non-Community 6,705
SOUND WATER WA5381376 Washington Community 6,660
ELMA CITY OF WA5323100 Washington Community 6,638
SALLAL WATER ASSOCIATION INC WA5375560 Washington Community 6,600
FORT WORDEN STATE PARK WA53SP310 Washington Transient Non-Community 6,508
UNION GAP WATER WA5390250 Washington Community 6,433
ENERGY DEPT OF/200W WA5300100 Washington Non-Transient Non-Community 6,351
BLAINE CITY OF WA5307300 Washington Community 6,319
PASADENA PARK IRR DIST 17 WA5366300 Washington Community 6,269
PROSSER CITY OF WA5369750 Washington Community 6,211
SPO CO WATER DIST 3 SYS 4 WA5393354 Washington Community 6,155
TULALIP BAY WATER DIST #1 105300003 Washington Community 5,968
ARTONDALE WA5303160 Washington Community 5,828
SEVEN LAKES WATER ASSOCIATION WA5377660 Washington Community 5,823
CASHMERE WATER DEPARTMENT WA5311700 Washington Community 5,815
SNOQUALMIE PASS UTILITY DISTRICT WA5381048 Washington Community 5,805
KCWD #56 WA5340000 Washington Community 5,800
SEA TAC REST AREA - WSDOT WA53HD660 Washington Transient Non-Community 5,728
CHAMPS DE BRIONNE WINERY WA5351301 Washington Transient Non-Community 5,719
INDIAN JOHN REST AREA (EB/WB) WA53HD331 Washington Transient Non-Community 5,718
BENTON CITY WATER WA5305800 Washington Community 5,626
SPO CO WATER DIST 3 SYS 1 WA5393350 Washington Community 5,600
MOXEE WATER DEPARTMENT WA5357300 Washington Community 5,599
FAIRCHILD AIR FORCE BASE WA5324350 Washington Community 5,553
MONTESANO CITY OF WA5356000 Washington Community 5,492