Public Water Systems
4,557 active water systems in WA.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| RAVENSDALE WATER SUPPLY | Renton, WA | 389 | 61 | — |
| BEAVER BAY CAMPGROUND | Woodland, WA | 387 | 2 | — |
| TATOOSH WATER COMPANY | Mount Vernon, WA | 387 | 34 | — |
| WHITE BLUFF WATER ASSOCIATION | Kennewick, WA | 386 | 49 | — |
| WILSON CREEK WATER DEPT TOWN OF | Quincy, WA | 386 | 35 | — |
| ELDORADO HILLS | Poulsbo, WA | 383 | 4 | — |
| PONDEROSA PARK WATER SYSTEM | Goldendale, WA | 381 | 11 | — |
| DELPHI | Shelton, WA | 381 | 27 | — |
| CHELAN FALLS WATER DISTRICT | Wenatchee, WA | 380 | 36 | — |
| MANSFIELD WATER SYSTEM | Waterville, WA | 380 | 178 | — |
| UPPER COLUMBIA ACADEMY | SPANGLE, WA | 380 | 54 | — |
| CASCADE VALLEY WATER DISTRICT | MOSES LAKE, WA | 379 | 477 | — |
| Parkwood MFD Housing Community | SEQUIM, WA | 378 | 20 | — |
| TIMBERLINE VILLAGE 628 | Lacey, WA | 378 | 10 | — |
| SUN MOUNTAIN RESORT | Twisp, WA | 376 | 387 | — |
| WEST PRAIRIE VILLAGE | Spokane, WA | 375 | 305 | — |
| SPO CO WATER DIST 3 SYS 8 | Spokane, WA | 375 | 2 | — |
| Zirkle - Paterson Ranch | Yakima, WA | 374 | 0 | — |
| ALMIRA WATER SYSTEM | Almira, WA | 372 | 21 | — |
| MARCUS WHITMAN SCHOOL | Yakima, WA | 370 | 13 | — |
| WHATCOM MEADOWS | Sedro Woolley, WA | 370 | 15 | — |
| ELMER CITY WATER SYSTEM | Elmer City, WA | 368 | 16 | — |
| HOOD CANAL | Shelton, WA | 368 | 50 | — |
| Tahuya River Valley Water District | Shelton, WA | 367 | 281 | — |
| UNIONTOWN WATER WORKS | Uniontown, WA | 366 | 74 | — |
| JR SIMPLOT CO | Moses Lake, WA | 365 | 59 | — |
| Custer Water Association | Custer, WA | 365 | 77 | — |
| STEVENS CO PUD - RIVERSIDE | Loon Lake, WA | 365 | 25 | — |
| ALPINE HILLS | Tacoma, WA | 363 | 11 | — |
| Edgewater Rocky Pond | Wenatchee, WA | 363 | 0 | — |
| EASTON WATER DISTRICT | Cle Elum, WA | 362 | 69 | — |
| WEYERHAEUSER ELEMENTARY SCHOOL | Port Orchard, WA | 362 | 12 | — |
| HIAPARK | Port Orchard, WA | 360 | 10 | — |
| Hillcrest Food Mart | Napavine, WA | 360 | 18 | — |
| LAKE LUCINDA COMMUNITY CLUB | Shelton, WA | 360 | 983 | — |
| GOLDEN PLAINS MHP #1 | Moses Lake, WA | 360 | 212 | — |
| GARDINER LUD 1 | Port Townsend, WA | 358 | 18 | — |
| MAINS FARM PROPERTY OWNERS | SEQUIM, WA | 358 | 11 | — |
| SPO CO WATER DIST 3 SYS 6 | Spokane, WA | 358 | 476 | — |
| LISECC | Lummi Island, WA | 357 | 40 | — |
| WSDP Riverside SP Equestrian | Nine Mile Falls, WA | 356 | 2 | — |
| CANTERBROOK VILLAGE APARTMENTS | Port Orchard, WA | 355 | 36 | — |
| Sierra Water System | Puyallup, WA | 355 | 7 | — |
| VISTA DEL RIO MOBILE HOME PARK | Vancouver, WA | 352 | 3,450 | — |
| CHIWAWA COMMUNITIES ASSN | Leavenworth, WA | 352 | 29 | — |
| STRATHVIEW WATER DISTRICT 16 | Medical Lake, WA | 351 | 16 | — |
| BELL BAY JACKSON WATER ASSOCIATION | Lynden, WA | 350 | 26 | — |
| CHEWELAH WATER DEPT NORTH | Chewelah, WA | 350 | 26 | — |
| Honeywell Electronic Mfg LLC | Republic, WA | 350 | 12 | — |
| QUILCENE SCHOOL DISTRICT 48 | Brinnon, WA | 350 | 80 | — |