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
MECCA COMMUNITY ASSOCIATION WA5322888 Washington Community 619
COLUMBIA HILLS STATE PARK WA53SP325 Washington Transient Non-Community 616
WICKS LAKE RANCHES WA5396728 Washington Community 615
SOUTH BAY ELEMENTARY SCHOOL WA5381465 Washington Non-Transient Non-Community 615
RIDGE WATER ASSOCIATION WA5303456 Washington Community 615
LACAMAS FARMSTEADS WA5302117 Washington Community 615
KCWD #1 WA5302331 Washington Community 615
HGH INC WATER SYSTEM WA5302141 Washington Transient Non-Community 613
PORCUPINE BAY CAMPGROUND WA53NP700 Washington Transient Non-Community 612
SUMAS RURAL WATER ASSOCIATION WA5384850 Washington Community 612
LEWIS CO WATER DIST #3 WA5365550 Washington Community 611
SEABECK WA5303134 Washington Community 610
CAPE HORN SKYE GRADE SCHOOL WA5311062 Washington Non-Transient Non-Community 610
COLUMBIA ELEMENTARY SCHOOL WA5314129 Washington Non-Transient Non-Community 610
WASHOUGAL MOTOCROSS LLC WA5358514 Washington Transient Non-Community 602
JEFFERSON COUNTY WATER DIST #1 WA5336705 Washington Community 600
ENERGY DEPT OF/300 AREA WA5341840 Washington Non-Transient Non-Community 600
JEFFERSON BEACH WA5336700 Washington Community 600
ALASKA GENERAL SEAFOODS NAKNEK - CANNERY AK2261240 Washington Transient Non-Community 600
OUTLOOK ELEMENTARY SCHOOL WA5364940 Washington Non-Transient Non-Community 600
COLUMBIA POINT MARINA PARK WA5356726 Washington Transient Non-Community 600
YAKIMA INDIAN NATION OR5300026 Washington Community 600
BURGERMASTER RESTAURANT WA5309375 Washington Transient Non-Community 600
YAKIMA FIRING CENTER #2 WA5308470 Washington Transient Non-Community 600
WANDERING CREEK WA5324519 Washington Community 600
LAKES ELEMENTARY WA5345127 Washington Transient Non-Community 600
SPO CO WATER DIST 3, SYS 7 WA5393357 Washington Community 600
BYWATER BAY WA5302043 Washington Community 600
NORTH END WATER USERS WA5360450 Washington Community 600
MCKENNA WATER DISTRICT WA5303521 Washington Community 600
WHITE RIVER MIDDLE SCHOOL WA5396285 Washington Non-Transient Non-Community 600
WISHRAM WATER SYSTEM WA5397950 Washington Community 599
DALLESPORT WATER DISTRICT WA5317715 Washington Community 598
LEWIS & CLARK STATE PARK WA53SP460 Washington Transient Non-Community 595
METALINE FALLS TOWN OF WA5354250 Washington Community 593
SANDY HOOK PARK COMMUNITY CLUB WA5375950 Washington Community 593
EAST OLYMPIA ELEMENTARY SCHOOL WA5358814 Washington Non-Transient Non-Community 593
WOLFE SCHOOL WA5398035 Washington Non-Transient Non-Community 593
ASPEN ESTATES 105300140 Washington Community 592
CAMANO VISTA WATER DISTRICT WA5310748 Washington Community 591
HUNTERS CAMPGROUND WA53NP380 Washington Transient Non-Community 591
LACEY NISQUALLY SYSTEM WA5300901 Washington Community 585
MOUNT BAKER JR AND SR HIGH SCHOOL WA5356450 Washington Non-Transient Non-Community 584
NEW TESTAMENT CHRISTIAN CHURCH WA5312514 Washington Transient Non-Community 581
EVANS CAMPGROUND WA53NP240 Washington Transient Non-Community 581
SHENANDOAH FOREST WATER SYSTEM WA5325397 Washington Community 580
BUCODA WATER DEPT WA5309100 Washington Community 579
MEADOWBROOK WATER ASSOCIATION WA5353250 Washington Community 579
BAY CENTER WA5304815 Washington Community 579
RAFT ISLAND WA5370760 Washington Community 575