Public Water Systems
4,557 active public water systems in WA, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| Northwest Trek | Eatonville, WA | 1,283 | 19 | Clean |
| Rochester High School | Rochester, WA | 1,275 | 42 | - |
| Carlyon Beach Homeowners | Olympia, WA | 1,273 | 29 | - |
| Walla Walla University | Walla Walla, WA | 1,273 | 34 | - |
| Western Forest Industries Museum | Eatonville, WA | 1,266 | 3 | - |
| Freeland Water and Sewer District | Freeland, WA | 1,264 | 91 | - |
| Bc Water Co | Kennewick, WA | 1,262 | 29 | - |
| Lakeview Park Water Assn | Quincy, WA | 1,259 | 83 | - |
| Garfield County Fairgrounds | Pomeroy, WA | 1,250 | 7 | - |
| Frontier County Park | Puyallup, WA | 1,233 | 3 | - |
| Frog Pond | Pouslbo, WA | 1,229 | 28 | - |
| Stevens Co PUD - Waitts Lake | Loon Lake, WA | 1,216 | 6 | - |
| Roy City Of | Roy, WA | 1,214 | 6 | - |
| Cama Beach State Park | Camano Island, WA | 1,210 | 12 | - |
| Washington State Corrections-Women | Gig Harbor, WA | 1,205 | 13 | - |
| South Whidbey State Park | Coupeville, WA | 1,203 | 5 | - |
| Keyport Water | Poulsbo, WA | 1,202 | 4 | - |
| Community Sewer and Water District | Kennewick, WA | 1,200 | 150 | - |
| Whitworth University | Spokane, WA | 1,200 | 151 | - |
| Harrison Well #2 | Yakima, WA | 1,200 | 52 | - |
| Fisherman Bay Water Association | Lopez Island, WA | 1,195 | 35 | - |
| Warm Beach Conference Grounds | Mount Vernon, WA | 1,190 | 46 | - |
| Lewis Co Water Dist #1 | Napavine, WA | 1,174 | 400 | - |
| Ponderosa Community Club Inc | Leavenworth, WA | 1,170 | 38 | - |
| Monse-Riggan Camp | Brewster, WA | 1,165 | 13 | - |
| Weiler-Martin Tracts Water Assn | Quincy, WA | 1,163 | 79 | - |
| Basin Water Sources Inc | Cle Elum, WA | 1,158 | 32 | - |
| Meadowmeer | Port Orchard, WA | 1,157 | 773 | - |
| Boston Harbor | Olympia, WA | 1,153 | 62 | - |
| Kopachuck Middle & Voyager Elem WS | Gig Harbor, WA | 1,150 | 26 | - |
| Pateros Water Department | Pateros, WA | 1,149 | 93 | - |
| Newberry Hill | Poulsbo, WA | 1,143 | 3 | - |
| Ashford Water District | Ashford, WA | 1,141 | 31 | - |
| Waterville Town Of | Waterville, WA | 1,140 | 74 | - |
| Maryhill State Park | Goldendale, WA | 1,133 | 26 | - |
| Elma Rest Area | Aberdeen, WA | 1,122 | 34 | - |
| Paradise Point State Park | Stevenson, WA | 1,114 | 23 | - |
| Quistorff | Tacoma, WA | 1,113 | 48 | Detected |
| W&b Waterworks 1 | Freeland, WA | 1,112 | 1,660 | - |
| Crescent Bar System | Ephrata, WA | 1,108 | 43 | - |
| Beards Cove | Shelton, WA | 1,100 | 18 | - |
| Tekoa City Of | Tekoa, WA | 1,076 | 67 | - |
| Sunshine Acres | Tacoma, WA | 1,074 | 64 | - |
| Miller Bay | Poulsbo, WA | 1,072 | 4 | - |
| Camano Co-Op Water & Power Co | Mount Vernon, WA | 1,071 | 19 | - |
| Wilkeson Water Department | Wilkeson, WA | 1,071 | 22 | - |
| Alta Lake State Park | Pateros, WA | 1,071 | 11 | - |
| Schilter Family Farm Store | Port Orchard, WA | 1,056 | 2 | - |
| Potlatch State Park | Sequim, WA | 1,055 | 13 | - |
| Holiday Ranchettes | Tacoma, WA | 1,050 | 13 | - |