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 |
|---|---|---|---|---|
| Three Lakes Water District | Malaga, WA | 650 | 18 | - |
| Vistaire Water System | Clinton, WA | 647 | 978 | - |
| Gee Cee S Truckstop | Castle Rock, WA | 646 | 80 | - |
| Fairfield Town Of | Tekoa, WA | 643 | 166 | - |
| Washington Soldiers Home Colony | Port Orchard, WA | 643 | 13 | - |
| Startup Water District | Startup, WA | 643 | 26 | - |
| Liberty Bell High School | Winthrop, WA | 642 | 704 | - |
| Cedar Creek Corrections Center | Littlerock, WA | 639 | 26 | - |
| Clear Lake Rec Area | Fairchild AFB, WA | 637 | 7 | - |
| Jaw Farms Inc | Malott, WA | 636 | 26 | - |
| Alderwood Estates | Puyallup, WA | 635 | 13 | - |
| Duck Lake Water Association | Okanogan, WA | 635 | 62 | - |
| Colton Water Department | Colton, WA | 632 | 47 | - |
| Glenwood Water System | Goldendale, WA | 629 | 27 | - |
| Mountaineers Theater - Kitsap | Seattle, WA | 628 | 20 | - |
| Priest Point Beach Water Inc | Arlington, WA | 624 | 63 | - |
| Bridgehaven Community Club | Port Ludlow, WA | 623 | 29 | - |
| Key Peninsula Middle School | Gig Harbor, WA | 623 | 6 | - |
| Glen Community Association | Maple Falls, WA | 623 | 43 | - |
| Mecca Community Association | Coupeville, WA | 619 | 210 | - |
| Columbia Hills State Park | Goldendale, WA | 616 | 7 | - |
| Lacamas Farmsteads | Tacoma, WA | 615 | 4 | - |
| Ridge Water Association | Spokane, WA | 615 | 11 | - |
| South Bay Elementary School | Port Orchard, WA | 615 | 239 | - |
| Wicks Lake Ranches | Tacoma, WA | 615 | 24 | - |
| Hgh Inc Water System | Lind, WA | 613 | 80 | - |
| Sumas Rural Water Association | Sumas, WA | 612 | 80 | - |
| Porcupine Bay Campground | Coulee dam, WA | 612 | 2 | - |
| Lewis Co Water Dist #3 | Randle, WA | 611 | 24 | - |
| Seabeck | Poulsbo, WA | 610 | 6 | Clean |
| Cape Horn Skye Grade School | Woodland, WA | 610 | 113 | - |
| Washougal Motocross LLC | Washougal, WA | 602 | 26 | - |
| Bywater Bay | Port Townsend, WA | 600 | 1,724 | - |
| McKenna Water District | McKenna, WA | 600 | 6 | - |
| Jefferson County Water Dist #1 | Port Ludlow, WA | 600 | 61 | - |
| Energy Dept of/300 Area | Richland, WA | 600 | 10 | - |
| Outlook Elementary School | Yakima, WA | 600 | 232 | - |
| Wishram Water System | Goldendale, WA | 599 | 2 | - |
| Dallesport Water District | Dallesport, WA | 598 | 71 | - |
| Lewis & Clark State Park | Castle Rock, WA | 595 | 27 | - |
| Metaline Falls Town Of | Newport, WA | 593 | 14 | - |
| East Olympia Elementary School | Tumwater, WA | 593 | 21 | - |
| Sandy Hook Park Community Club | Port Orchard, WA | 593 | 44 | - |
| Camano Vista Water District | Coupeville, WA | 591 | 230 | - |
| Hunters Campground | Coulee dam, WA | 591 | 4 | - |
| New Testament Christian Church | Graham, WA | 581 | 19 | - |
| Evans Campground | Coulee dam, WA | 581 | 3 | - |
| Bay Center | Raymond, WA | 579 | 91 | - |
| Bucoda Water Dept | Bucoda, WA | 579 | 30 | - |
| Meadowbrook Water Association | Lynden, WA | 579 | 36 | - |