Washington utilities 1,301 to 1,400.
Each serves 94 to 107 people, as it reports to EPA. Your ZIP code finds yours faster.
1,301 to 1,400 of 2,220, by people served
| Utility | Based in | Serves | Regulated PFAS | Health-based violations since 2016 |
|---|---|---|---|---|
| Prairie View Estates 759 | Lacey | 107 | Not sampled | 0 |
| Beulah Park Community | Port Orchard | 106 | Not sampled | 0 |
| Cedar Mountain Homeowners Assoc | Port Orchard | 106 | Not sampled | 0 |
| Cuyamaca Village | Tacoma | 106 | Not sampled | 0 |
| May Volt Hills | Tacoma | 106 | Not sampled | 0 |
| Pebble Ridge | Port Orchard | 106 | Not sampled | 0 |
| Rumbolz Sunset Water System | Snoqualmie | 106 | Not sampled | 0 |
| Woodland Estates | Coupeville | 106 | Not sampled | 0 |
| Echo Glen Water System | Silverdale | 105 | Not sampled | 0 |
| Homestead Mobile Home Park | Tonasket | 105 | Not sampled | 0 |
| Parkwood Mobile Home Estates | Chehalis | 105 | Not sampled | 0 |
| Ponderosa Mobile Home Park | Ellensburg | 105 | Not sampled | 0 |
| Redmon Mobile Home Park | Napavine | 105 | Not sampled | 0 |
| Spo Co Water Dist 3 Sys 9 | Spokane | 105 | Not sampled | 0 |
| Town of Hatton | Moses Lake | 105 | Not sampled | 0 |
| Woodland Heights | Sequim | 105 | Not sampled | 0 |
| Arlington Terrace | Port Orchard | 104 | Not sampled | 0 |
| Black Lake Acres | Olympia | 104 | Not sampled | 0 |
| Salkum Water Supply | Salkum | 103 | Not sampled | 1 |
| Lynch Cove Div 1 Water Assn | Port Orchard | 102 | Not sampled | 0 |
| Owl Creek | Woodland | 102 | Not sampled | 0 |
| Point Allen Water Association | MT Vernon | 102 | Not sampled | 0 |
| Ski Hill Domestic Water Association | Cashmere | 102 | Not sampled | 0 |
| Talcott Ridge 695 | Lacey | 102 | Not sampled | 2 |
| Clear Creek Estates | Tacoma | 101 | Not sampled | 0 |
| Dallesport Mobile Home Park | Yakima | 101 | Not sampled | 0 |
| Little Butte Water System | Chelan | 101 | Not sampled | 1 |
| North Shore Acres | Grand Coulee | 101 | Not sampled | 0 |
| Shore Hill | Shelton | 101 | Not sampled | 0 |
| Agate West | Freeland | 100 | Not sampled | 0 |
| Arlington East Mutual Water Assn. | Arlington | 100 | Not sampled | 0 |
| Avellana Water | Poulsbo | 100 | Not sampled | 0 |
| Bertsch Subdivision Water Assn | Yakima | 100 | Not sampled | 0 |
| Brixey H2a | Yakima | 100 | Not sampled | 0 |
| Brocious Water System | Yakima | 100 | Not sampled | 0 |
| Brookside | Woodland | 100 | Not sampled | 3 |
| Creekside Apartments | Black Diamond | 100 | Not sampled | 0 |
| Dawn Lee Courts | Cashmere | 100 | Not sampled | 0 |
| Desert Villa | Yakima | 100 | Not sampled | 0 |
| Doc Stewart | Yakima | 100 | Not sampled | 0 |
| Duggan Falls | Port Orchard | 100 | Not sampled | 2 |
| Eggimann 664 | Lacey | 100 | Not sampled | 0 |
| Eltopia Water Association | Eltopia | 100 | Not sampled | 0 |
| Fairway Estates Inc | Coupeville | 100 | Not sampled | 0 |
| Glacier Vista 665 | Lacey | 100 | Not sampled | 0 |
| Great Basin Water Sunrise | Pasco | 100 | Not sampled | 0 |
| Hillcrest Manor | Vancouver | 100 | Not sampled | 0 |
| M J Trailer Ranch | Okanogan | 100 | Not sampled | 0 |
| Opr H2a | Yakima | 100 | Not sampled | 0 |
| Pine Acres Mobile Home Park | Spokane | 100 | Not sampled | 1 |
| Riverlea 692 | Lacey | 100 | Not sampled | 0 |
| Sno PUD 1 - Creswell | Everett | 100 | Not sampled | 0 |
| Sun - Tides Rv Park | Yakima | 100 | Not sampled | 0 |
| Sunburst Estates Water Assn | Moses Lake | 100 | Not sampled | 0 |
| Sundance Improvement Association | Kennewick | 100 | Not sampled | 14 |
| Tall Cedars Estates Water Assoc. | Ferndale | 100 | Not sampled | 0 |
| Warner Flats Domestic Water Co Inc | Cashmere | 100 | Not sampled | 0 |
| Whispering Pines | Port Orchard | 100 | Not sampled | 0 |
| Winchester West Farmworker Housing | Wenatchee | 100 | Not sampled | 0 |
| Cornet Bay Heights Water Assn Inc | Coupeville | 99 | Not sampled | 0 |
| Northwest Water | Coupeville | 99 | Not sampled | 0 |
| T - 11 Farmworker Housing | Wenatchee | 99 | Not sampled | 1 |
| Elk Heights 247 | Lacey | 98 | Not sampled | 0 |
| Fairchild Community LLC | Port Orchard | 98 | Not sampled | 0 |
| Meadow Lane Water Assn | Othello | 98 | Not sampled | 0 |
| Northwest | Port Orchard | 98 | Not sampled | 0 |
| River Ridge Farmworker Housing | Yakima | 98 | Not sampled | 0 |
| Sky Meadows Ranch Country Club WTR | Cle Elum | 98 | Not sampled | 0 |
| Westbridge Estates Water Assn | Port Orchard | 98 | Not sampled | 0 |
| Wickersham Water Association | Acme | 98 | Not sampled | 0 |
| Wilderwood HOA | Port Orchard | 98 | Not sampled | 0 |
| North Offut Lake WTR Service | Olympia | 97 | Not sampled | 0 |
| North Slope Estates Property | Pasco | 97 | Not sampled | 2 |
| Sun Island Maintenance Assn | Cle Elum | 97 | Not sampled | 0 |
| Bar B Estate Manor | Tacoma | 96 | Not sampled | 0 |
| Bay East | Union | 96 | Not sampled | 0 |
| Canyon Farm Camp | Pasco | 96 | Not sampled | 0 |
| Dexter by the Sea | Raymond | 96 | Not sampled | 0 |
| Hi - Point Housing | Pasco | 96 | Not sampled | 0 |
| Lake Ki Sunrise Addition Water | Arlington | 96 | Not sampled | 0 |
| Mason County Lost Lake | Port Orchard | 96 | Not sampled | 0 |
| Rosedale Community Club | Tacoma | 96 | Not sampled | 0 |
| Spring Glen Mobile Home Park | Mercer Island | 96 | Not sampled | 0 |
| Summerset Meridian | Port Orchard | 96 | Not sampled | 0 |
| Valicoff Yvh H2a Housing | Yakima | 96 | Not sampled | 0 |
| Winchester Farmworker - Cfp | Wenatchee | 96 | Not sampled | 0 |
| Aloha Pines Estates Water System | Elk | 95 | Not sampled | 0 |
| Corbett Creek | Port Orchard | 95 | Not sampled | 6 |
| Country Corner Mobile Home Park | Gig Harbor | 95 | Not sampled | 0 |
| Edelweiss Maintenance Commission | Winthrop | 95 | Not sampled | 0 |
| Enterprise Terrace Water Assn. | Ferndale | 95 | Not sampled | 1 |
| Hartwood Water System | Port Orchard | 95 | Not sampled | 7 |
| Hillview Water Assn | Yakima | 95 | Not sampled | 0 |
| King County Water District #117 | Port Orchard | 95 | Not sampled | 0 |
| Lenets Mobile Estates | Vancouver | 95 | Not sampled | 0 |
| Pheasant Farm Acres | Coupeville | 95 | Not sampled | 0 |
| Riverview | Tacoma | 95 | Not sampled | 0 |
| Wheel Estates Park | Freeland | 95 | Not sampled | 0 |
| Graystone WS | Pasco | 94 | Not sampled | 0 |
| Jamestown on Wilcox Lane | Sequim | 94 | 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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