Washington utilities 1,101 to 1,200.
Each serves 125 to 150 people, as it reports to EPA. Your ZIP code finds yours faster.
1,101 to 1,200 of 2,220, by people served
| Utility | Based in | Serves | Regulated PFAS | Health-based violations since 2016 |
|---|---|---|---|---|
| Reflection Water Association | Elk | 150 | Not sampled | 0 |
| River Road Mobile Home Park | Tonasket | 150 | Not sampled | 3 |
| Roederland Water Association | Lynden | 150 | Not sampled | 0 |
| Sunlight Shores Country Club | Coupeville | 150 | Not sampled | 0 |
| Travis Jack 264 | Lacey | 150 | Not sampled | 0 |
| Upper Preston Water Assn | Falls City | 150 | Not sampled | 0 |
| Wagon Wheel | Coupeville | 150 | Not sampled | 0 |
| West 15 Domestic Water Assn | Othello | 150 | Not sampled | 0 |
| Hidden Haven Mobile Home Park | Belfair | 149 | Not sampled | 0 |
| Dayton Trails | Shelton | 148 | Not sampled | 0 |
| Johanson | Tacoma | 148 | Not sampled | 0 |
| Shorebrook Community Club | Port Orchard | 148 | Not sampled | 0 |
| Valley Meadows 240 | Lacey | 148 | Not sampled | 0 |
| City of Starbuck | Starbuck | 147 | Not sampled | 0 |
| Crestview West Water System | Kent | 147 | Not sampled | 1 |
| Lwwsd - Agate Heights | Bellingham | 147 | Not sampled | 0 |
| Crystal Village I - II - III | Enumclaw | 146 | Not sampled | 0 |
| Israel Place San Angelo Park | Tacoma | 146 | Not sampled | 0 |
| Single Tree Estates | Port Orchard | 146 | Not sampled | 0 |
| Wildaire Estates | Chehalis | 146 | Not sampled | 10 |
| MUD Bay | Port Orchard | 145 | Not sampled | 0 |
| Thunder Ridge Water System | Coupeville | 145 | Not sampled | 0 |
| Glenwood Station | Tacoma | 144 | Not sampled | 0 |
| Middle Fork Water & Sewer | Chehalis | 144 | Not sampled | 0 |
| The Village at Colockum Ridge | Quincy | 144 | Not sampled | 0 |
| Driftwood Point Water System | Gig Harbor | 143 | Not sampled | 0 |
| Lake Tuck | Tacoma | 143 | Not sampled | 0 |
| Little Tree | Tacoma | 143 | Not sampled | 0 |
| Mainland View Manor | Tacoma | 143 | Not sampled | 0 |
| Martell Mobile Manor | Port Orchard | 143 | Not sampled | 0 |
| Oaks the Mobile Home Park | Friday Harbor | 143 | Not sampled | 0 |
| Olympus Beach Tracts | Sequim | 143 | Not sampled | 0 |
| Sunland Shores | Sun Valley | 143 | Not sampled | 0 |
| Camelot Subdivision | Kelso | 142 | Not sampled | 0 |
| High Valley Mobile Home Court | Yakima | 142 | Not sampled | 0 |
| Aston Estates | Tonasket | 141 | Not sampled | 0 |
| Race Lagoon Heights Association | Arlington | 141 | Not sampled | 0 |
| Race Lagoon Water Association | Coupeville | 141 | Not sampled | 0 |
| Valley High Park | Coupeville | 141 | Not sampled | 0 |
| View Ranch Estates Water Assn | Chehalis | 141 | Not sampled | 0 |
| Deschutes Village 683 | Lacey | 140 | Not sampled | 0 |
| Evergreen Mobile Homeowners Co - Op | Shelton | 140 | Not sampled | 0 |
| Forest Hills Water System | Gig Harbor | 140 | Not sampled | 0 |
| Holly Tides | Tacoma | 140 | Not sampled | 0 |
| Lakeview Terrace | Coupeville | 140 | Not sampled | 0 |
| North Star Water Assoc | Ferndale | 140 | Not sampled | 0 |
| River Bend Water System | Newport | 140 | Not sampled | 0 |
| Spokane Hutterian Brethren | Reardan | 140 | Not sampled | 0 |
| Sunset Ridge Community Assn | Anacortes | 140 | Not sampled | 0 |
| Cherry Creek | Sun Valley | 138 | Not sampled | 1 |
| Diamond Springs Water Association | Port Orchard | 138 | Not sampled | 0 |
| Golden Valley Water Assn | Quincy | 138 | Not sampled | 8 |
| Grandview Valley Estates | Rochester | 138 | Not sampled | 0 |
| Mariani Water System Inc | Black Diamond | 138 | Not sampled | 0 |
| Hilltop Water Owners Association | Lummi Island | 137 | Not sampled | 0 |
| Minter Creek Rapids | Tacoma | 137 | Not sampled | 0 |
| Lamont Water System | Lamont | 136 | Not sampled | 0 |
| Eagle Valley Water System | Coupeville | 135 | Not sampled | 0 |
| Friar Creek Water System | Monroe | 135 | Not sampled | 0 |
| Lakeview Terrace MHP | Port Orchard | 135 | Not sampled | 0 |
| North Ridge Water Corp | Arlington | 135 | Not sampled | 0 |
| Pasco Heights Domestic Water Assn | Kennewick | 135 | Not sampled | 0 |
| South Hills Water Users Assn Inc | Yakima | 135 | Not sampled | 0 |
| Kathann Estates Water | Marysville | 134 | Not sampled | 0 |
| Lake Grove Water Association | Coupeville | 134 | Not sampled | 0 |
| Marlin Hutterian | Marlin | 134 | Not sampled | 0 |
| Curlew Kai Homeowner Water System | Republic | 133 | Not sampled | 0 |
| Mackaye Harbor Water District | Lopez Island | 133 | Not sampled | 0 |
| Turtlerock Homeowners Association | Wenatchee | 133 | Not sampled | 0 |
| Maple Grove | Sequim | 132 | Not sampled | 0 |
| Skamania Landing Owners Assn | Port Orchard | 132 | Not sampled | 0 |
| Country Squire Mobile Manor | Yakima | 131 | Not sampled | 0 |
| Pleasant Tides Water Co Op | Port Angeles | 131 | Not sampled | 0 |
| Wyckoff Farms | Grandview | 131 | Not sampled | 0 |
| Bayshore | Union | 130 | None found | 0 |
| Camp Benbow | Graham | 130 | Not sampled | 0 |
| Everson Water Assoc | Lynden | 130 | Not sampled | 0 |
| Gala Pines Water. | Poulsbo | 130 | Not sampled | 0 |
| Holiday Beach Water Supply | Union | 130 | Not sampled | 0 |
| Portland Fair Estates | Friday Harbor | 130 | Not sampled | 9 |
| Selandia Manor Water Assn | Yakima | 130 | Not sampled | 0 |
| Skookumchuck 612 | Lacey | 130 | Not sampled | 0 |
| Sydney Heights Water Assn | Walla Walla | 130 | Not sampled | 0 |
| Vineyard the 696 | Lacey | 130 | Not sampled | 0 |
| Ayock Beach Improvement | Port Orchard | 129 | Not sampled | 0 |
| Twenty - Three 800 Tiger Mountain | Port Orchard | 129 | Not sampled | 0 |
| Dobler John D Water System | Port Orchard | 128 | Not sampled | 0 |
| Radar Hill Water System | Othello | 128 | Not sampled | 0 |
| Sam Lake Improvement Association | Marysville | 128 | Not sampled | 0 |
| Bethel East | Port Orchard | 127 | Not sampled | 0 |
| Forest Park | Tacoma | 127 | Not sampled | 0 |
| Parklane Water Association | Stanwood | 127 | Not sampled | 1 |
| Teronda West Country Club Assn. | Coupeville | 127 | Not sampled | 0 |
| The Meadows Water System LLC | Kirkland | 127 | Not sampled | 0 |
| Meridian Heights Water District | Port Orchard | 126 | Not sampled | 0 |
| Mountain Valley Water System | Lacey | 126 | Not sampled | 0 |
| Sandwood Heights Subdivision | Woodland | 126 | Not sampled | 0 |
| Valley View Mobile Park LLC | Port Orchard | 126 | Not sampled | 0 |
| Afc Ranch 2 | Tonasket | 125 | Not sampled | 0 |
| Columbia Place LLC | Portland | 125 | Not sampled | 0 |
Every utility EPA sampled for PFAS under UCMR 5, any other community system serving 3,300 people or more, and any smaller one with results from 2020 on, from the state. Other systems appear in ZIP code results. People served is what each utility reports to EPA. Data: EPA SDWIS 2026 Q3, UCMR 5 and EPA’s 2012 to 2019 compliance results, and Washington State Department of Health, Office of Drinking Water.
Where to go next
- Read your utility’s own reportIt covers contaminants these pages don’t show, and its own latest results.How to read it
- Every contaminantLegal limits, health goals and what handles each one.All contaminants
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