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 |
|---|---|---|---|---|
| Nespelem Water Dept | Nespelem, WA | 510 | 110 | - |
| Jones Island State Park | Olga, WA | 509 | 29 | - |
| Stevens Co PUD - West Shore | Loon Lake, WA | 505 | 20 | - |
| Adams County Fair | Ritzville, WA | 503 | 26 | - |
| Zekes Drive-IN | Goldbar, WA | 502 | 5 | - |
| Deming Water Assoc. | Deming, WA | 501 | 21 | - |
| Glenwood Little League | Vancouver, WA | 500 | 60 | - |
| Home Valley Water District | Stevenson, WA | 500 | 140 | - |
| Columbia View Water System | West Richland, WA | 500 | 269 | - |
| Highland High School | Yakima, WA | 500 | 21 | - |
| Vancouver Lake Park | Vancouver, WA | 500 | 6 | - |
| Mount Baker Water Association | Bellingham, WA | 500 | 202 | - |
| Pasco Port of 210 | Pasco, WA | 500 | 27 | - |
| Sunvista Sunlight Beach HOA | Coupeville, WA | 500 | 61 | - |
| Thorp Arco AM/PM | Moses Lake, WA | 500 | 9 | - |
| Brooks Memorial SP Admin | Goldendale, WA | 500 | 8 | - |
| Silver Hawk | Port Orchard, WA | 499 | 0 | - |
| Sea View Water LLC | Freeland, WA | 496 | 32 | - |
| Dallesport Industrial Park | Goldendale, WA | 495 | 19 | - |
| Lagoon Point Water District | Greenbank, WA | 495 | 92 | - |
| Mesa Water Department | Mesa, WA | 495 | 74 | - |
| Newaukum Hill Water Assn | Chehalis, WA | 493 | 38 | - |
| South Fox Island Water System | Gig Harbor, WA | 493 | 10 | - |
| Quail Run 667 | Lacey, WA | 493 | 38 | - |
| Oakesdale Town Of | Oaksdale, WA | 492 | 86 | - |
| P and G Orchards Camp 2 | Brewster, WA | 489 | 102 | - |
| South Prairie Town Of | South Prairie, WA | 489 | 15 | - |
| Countrywood Estates 680 | Lacey, WA | 488 | 27 | - |
| Dungeness Meadows | Sequim, WA | 488 | 16 | Clean |
| Endicott Water Dept | Endicott, WA | 488 | 122 | - |
| Dismal Nitch Rest Area | Olympia, WA | 488 | 23 | - |
| Liberty School District #362 | Waverly, WA | 486 | 27 | - |
| Stuart Is State Park | Olga, WA | 486 | 17 | - |
| Spo Co Water Dist 3 Sys 5 | Spokane, WA | 485 | 2 | - |
| Jacks Resort | Waterville, WA | 482 | 12 | - |
| S & I | Tacoma, WA | 482 | 8 | - |
| Twanoh Falls Beach Club | Shelton, WA | 481 | 116 | - |
| Arlenes Addition | Burbank, WA | 480 | 31 | - |
| Roosevelt Lake Ranch | Wilbur, WA | 480 | 58 | - |
| Classic Heights | Tacoma, WA | 480 | 155 | - |
| Black Lake Bible Camp & Conf Ctr | Olympia, WA | 477 | 134 | - |
| Saratoga Water District | Coupeville, WA | 477 | 23 | - |
| Spar Restaurant | Olympia, WA | 474 | 26 | - |
| Benton County Two Rivers Park | Kennewick, WA | 474 | 17 | - |
| Wynoochee Wildwood Park | Aberdeen, WA | 471 | 56 | - |
| Louie Joe Water Association | Everson, WA | 471 | 23 | - |
| Pomona View Mobile Park | Yakima, WA | 470 | 34 | - |
| Sugarloaf Water System | Kent, WA | 468 | 34 | - |
| Chamberlain Lake Rest Area | Bingen, WA | 467 | 16 | - |
| Schafer State Park | Ocean Shores, WA | 465 | 25 | - |