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 |
|---|---|---|---|---|
| Malaga Water District | Malaga, WA | 2,478 | 31 | - |
| Kitsap Memorial State Pk | Bremerton, WA | 2,438 | 22 | - |
| Nooksack Water Dept | Nooksack, WA | 2,427 | 32 | - |
| Willapa Valley Water District | Raymond, WA | 2,425 | 62 | - |
| Black Diamond Water Dept | Black Diamond, WA | 2,420 | 194 | - |
| Belfair State Park | Belfair, WA | 2,411 | 32 | - |
| Carnation Water System City Of | Mount Vernon, WA | 2,400 | 12 | - |
| Cherokee Bay Community Club Inc | Port Orchard, WA | 2,400 | 25 | - |
| Soap Lake Water Dept | Quincy, WA | 2,399 | 25 | - |
| Ione Water Dept | Ion, WA | 2,395 | 30 | - |
| Tonasket Water System | Tonasket, WA | 2,392 | 25 | - |
| Boistfort Valley | Adna, WA | 2,389 | 388 | - |
| Glacier Water District | Glacier, WA | 2,383 | 14 | - |
| Pacific Beach/Moclips | Montesano, WA | 2,372 | 17 | - |
| Crescent Water Assn | Joyce, WA | 2,360 | 90 | Clean |
| Timberlake Community Club Inc | Shelton, WA | 2,337 | 29 | - |
| Badger Mountain Irrigation District | Kennewick, WA | 2,331 | 99 | - |
| Sprague Lake Eb Rest Area | Davenport, WA | 2,286 | 53 | - |
| Jackson Park Naval Hospital | Silverdale, WA | 2,277 | 7 | - |
| White River Entrance | Ashford, WA | 2,277 | 9 | - |
| East Entrance Mt Rainier | Ashford, WA | 2,263 | 11 | - |
| White River Campground #11 | Ashford, WA | 2,263 | 13 | - |
| Wanapum State Park | Ellensburg, WA | 2,263 | 6 | - |
| Blake Island State Park Wtr | Bremerton, WA | 2,260 | 29 | - |
| Valley Water System | Puyallup, WA | 2,259 | 10 | - |
| Alpine Water District | Cashmere, WA | 2,255 | 64 | - |
| West Kitsap | Poulsbo, WA | 2,248 | 282 | - |
| Kittitas City Of | Kittitas, WA | 2,247 | 18 | - |
| Darrington Town of | Darrington, WA | 2,246 | 44 | - |
| Sunland Water District | Sequim, WA | 2,235 | 13 | - |
| Washington Corrections Center | Shelton, WA | 2,223 | 73 | - |
| Hurricane Ridge | Port Angeles, WA | 2,221 | 6 | - |
| Bridgeport City Of | Bridgeport, WA | 2,214 | 75 | - |
| North Spokane Irrigation District 8 | Spokane, WA | 2,214 | 73 | - |
| Cle Elum Water Department | Cle Elum, WA | 2,213 | 160 | - |
| Shelter Bay Community Inc | La Conner, WA | 2,212 | 11 | Clean |
| Three Lakes Water Association | Snohomish, WA | 2,198 | 6 | - |
| Ryegrass Eb/Wb Rest Area | Cle Elum, WA | 2,184 | 25 | - |
| Alderbrook Water Co | Union, WA | 2,154 | 14 | - |
| Mabton City Of | Mabton, WA | 2,150 | 172 | - |
| Limekiln State Park | Olga, WA | 2,149 | 14 | - |
| Lake Limerick Water | Shelton, WA | 2,148 | 422 | - |
| Morton City Of | Morton, WA | 2,147 | 52 | - |
| Nason Creek Rest Area | Wenatchee, WA | 2,125 | 26 | - |
| Lakeland Village Water | Allyn, WA | 2,120 | 21 | - |
| Sunnyslope | Shelton, WA | 2,112 | 34 | - |
| Carnhope Irrigation District 7 | Spokane Valley, WA | 2,104 | 7 | - |
| Pearrygin Lake State Park - Both Cg | Winthrop, WA | 2,103 | 17 | - |
| Roslyn City Of | Roslyn, WA | 2,099 | 19 | - |
| Sandy Point Improvement Co | Lynden, WA | 2,098 | 399 | - |