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 |
|---|---|---|---|---|
| Winchester Mobile Homes Water | Spanaway, WA | 350 | 25 | - |
| Olalla School | Port Orchard, WA | 350 | 45 | - |
| Sun Tides Vista Homeowners Assn | Yakima, WA | 350 | 6 | - |
| Loup Loup Ski Area | Twisp, WA | 350 | 8 | - |
| Curlew Conservation Center | Republic, WA | 349 | 165 | - |
| Lake Crescent Barnes Point | Port Angeles, WA | 349 | 7 | - |
| Creston Public Water | Waverly, WA | 348 | 174 | - |
| Hat Island Community Inc | Everett, WA | 348 | 327 | - |
| Lewis River RV Park | Woodland, WA | 347 | 1,217 | - |
| Sol Duc Resort Campground | Port Angeles, WA | 347 | 5 | - |
| Beaux Arts Water Department | Beaux Arts, WA | 345 | 181 | - |
| Fields Spring State Park | Dayton, WA | 344 | 1 | - |
| Smokiam RV Resort | Soap Lake, WA | 343 | 26 | - |
| Lake Arrowhead | Shelton, WA | 343 | 10 | - |
| Riverbend Mobile Home Park | Port Orchard, WA | 343 | 21 | - |
| Ringold Domestic Water Corp | Othello, WA | 340 | 54 | - |
| Skyline Mobile Home Park | Yakima, WA | 340 | 19 | - |
| Sultan Estates Water System | Lake Forest Park, WA | 340 | 10 | - |
| Washington Land Yacht Harbor | Port Orchard, WA | 340 | 13 | - |
| Corral Springs Water System | Tonasket, WA | 336 | 63 | - |
| Beaver Valley General Store | Port Ludlow, WA | 335 | 43 | - |
| Progressive Flat Water Assn | Tonasket, WA | 335 | 242 | - |
| Chattaroy Valley Mobile Estates | Spokane, WA | 333 | 150 | - |
| Blakely Is. Maintenance Commission | Blakely Island, WA | 333 | 72 | - |
| Harmony Sports | Vancouver, WA | 333 | 15 | - |
| Emerald Lake | Shelton, WA | 331 | 16 | Clean |
| Kackman Creek | Mount Vernon, WA | 330 | 34 | - |
| Greater Bar Water District | Bridgeport, WA | 330 | 1,603 | - |
| Lackamas Elementary School | Port Orchard, WA | 330 | 149 | - |
| River Bluff Water System | Spokane, WA | 330 | 6 | - |
| Crane Ranch | Tonasket, WA | 329 | 26 | - |
| Black Lake Estates | Tacoma, WA | 329 | 6 | - |
| Port of Shelton Johns Prairie | Shelton, WA | 328 | 25 | - |
| Lost Lake | Port Orchard, WA | 328 | 23 | - |
| Hawk Acres 607 | Lacey, WA | 328 | 50 | - |
| Ritchie Brothers | Chehalis, WA | 328 | 0 | - |
| Pleasant Forest Camping Club | Napavine, WA | 327 | 42 | - |
| Nine Mile Resort | Nine Mile Falls, WA | 327 | 1 | - |
| Crockett Lake Water District | Freeland, WA | 325 | 47 | - |
| Harmony Grade School | Deming, WA | 325 | 44 | - |
| Machias Ridge Homeowners Assoc. | Snohomish, WA | 324 | 10 | - |
| Skykomish Water Dept | Skykomish, WA | 324 | 128 | - |
| Deep Lake State Park | Coulee City, WA | 323 | 8 | - |
| Rustlewood | Shelton, WA | 322 | 33 | - |
| Collins Lake Community Club | Port Orchard, WA | 321 | 40 | - |
| BJS Food and Fuel 2 | Cashmere, WA | 321 | 3 | - |
| Treasure Island Country Club | Port Orchard, WA | 321 | 24 | - |
| Rainbow Falls State Park | Olympia, WA | 321 | 31 | - |
| Rocky Point Community Club | Coupeville, WA | 320 | 20 | - |
| Leif Erikson Rec Assoc | Mt Vernon, WA | 320 | 16 | - |