Public Water Systems
4,557 active water systems in WA.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| VINLAND | Poulsbo, WA | 4,801 | 28 | Clean |
| MORAN STATE PARK-CASCADE LAKE | Olga, WA | 4,783 | 19 | — |
| FORKS MUNICIPAL WATER DEPT | FORKS, WA | 4,744 | 15 | Clean |
| WARDEN CITY OF | Warden, WA | 4,674 | 219 | Detected |
| Raymond Water Department | RAYMOND, WA | 4,620 | 25 | Clean |
| LONG BEACH WATER DEPARTMENT | LONG BEACH, WA | 4,592 | 892 | Clean |
| BELFAIR WATER DISTRICT 1 | BELFAIR, WA | 4,432 | 151 | — |
| SOUTH BAINBRIDGE | Poulsbo, WA | 4,414 | 660 | — |
| CASTLE ROCK MUNICIPAL WATER | CASTLE ROCK, WA | 4,367 | 126 | Clean |
| ORCHARD AVENUE IRRIGATION DIST 6 | Spokane, WA | 4,330 | 24 | Clean |
| GOLDENDALE CITY OF | Goldendale, WA | 4,314 | 52 | Detected |
| PATTISON 500 | Lacey, WA | 4,302 | 67 | Clean |
| EAST SPOKANE WATER DIST 1 | Spokane Valley, WA | 4,285 | 53 | Detected |
| TRENTWOOD IRRIGATION DISTRICT 3 | SPOKANE, WA | 4,228 | 45 | Detected |
| SUQUAMISH | Poulsbo, WA | 4,203 | 9 | Clean |
| PARADISE | Ashford, WA | 4,165 | 5 | — |
| CRYSTAL MOUNTAIN INC | Raymond, WA | 4,154 | 130 | Clean |
| IRVIN WATER DISTRICT #6 | Spokane, WA | 4,150 | 11 | Detected |
| COUPEVILLE TOWN OF | Coupeville, WA | 4,077 | 104 | Detected |
| WHITE SALMON CITY OF | White Salmon, WA | 4,077 | 95 | Clean |
| STEVENS PASS WATER SYSTEM | Leavenworth, WA | 4,053 | 35 | Clean |
| GRANGER WATER DEPARTMENT | Granger, WA | 3,993 | 14 | Detected |
| HATTON COULEE REST AREA | Davenport, WA | 3,882 | 8 | — |
| KING COUNTY WATER DISTRICT 119 | Duvall, WA | 3,796 | 3 | Clean |
| EVERSON CITY OF | Everson, WA | 3,788 | 45 | Clean |
| SPO CO WATER DIST 3 SYS 3 | Spokane, WA | 3,765 | 271 | Clean |
| GRAND MOUND | Olympia, WA | 3,764 | 4 | — |
| SCHRAG EB/WB REST AREAS | Davenport, WA | 3,734 | 51 | — |
| PARKVIEW TERRACE | Tacoma, WA | 3,730 | 9 | Detected |
| WATER DISTRICT 19 | Vashon, WA | 3,723 | 572 | Clean |
| EASTSOUND WATER USERS ASSOCIATION | Eastsound, WA | 3,711 | 304 | Clean |
| LAKE CUSHMAN SYSTEM 5 | Hoodsport, WA | 3,675 | 58 | Detected |
| EATONVILLE WATER DEPT | Eatonville, WA | 3,645 | 77 | Clean |
| TOUTLE RIVER REST AREA NB/SB | Chehalis, WA | 3,590 | 27 | — |
| FRIDAY HARBOR TOWN OF | Friday Harbor, WA | 3,543 | 56 | Clean |
| ZILLAH CITY OF | Zillah, WA | 3,518 | 55 | — |
| NACHES TOWN OF | Naches, WA | 3,512 | 517 | Clean |
| COLFAX WATER DEPARTMENT CITY OF | Colfax, WA | 3,507 | 46 | Detected |
| WINLOCK CITY OF | WINLOCK, WA | 3,502 | 237 | — |
| ROOSEVELT WATER ASSOCIATION | Snohomish, WA | 3,493 | 17 | — |
| MILLERSYLVANIA STATE PARK | Olympia, WA | 3,456 | 4 | — |
| HORIZONS WEST | Tacoma, WA | 3,454 | 28 | Detected |
| ROYAL CITY WATER | Royal City, WA | 3,389 | 61 | — |
| Tenino City of | TENINO, WA | 3,336 | 118 | Clean |
| DAYTON WATER DEPARTMENT | DAYTON, WA | 3,283 | 20 | — |
| NEWPORT CITY OF | Newport, WA | 3,258 | 213 | — |
| OROVILLE CITY OF | Oroville, WA | 3,256 | 92 | — |
| Fox Island Mutual Water Assoc | Fox Island, WA | 3,255 | 415 | — |
| BREWSTER CITY OF | Brewster, WA | 3,235 | 29 | — |
| Rock Island Water Dept City of | Rock Island, WA | 3,226 | 15 | — |