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 |
|---|---|---|---|---|
| Sno PUD 1 - Storm Lake Ridge | Everett, WA | 786 | 29 | - |
| Veterans Affair Med Ctr Dept Of | Yakima, WA | 785 | 189 | - |
| Bogachiel State Park | Sequim, WA | 783 | 2 | - |
| Curlew Lake State Park | Winthrop, WA | 779 | 69 | - |
| Hillcrest Village Water Co Inc | Mount Vernon, WA | 770 | 109 | - |
| Scenic Shores Water Company | Port Orchard, WA | 761 | 24 | - |
| Wallace Falls State Park | Issaquah, WA | 759 | 4 | - |
| Sucia Island St Park-Shallow Bay | Olga, WA | 757 | 10 | - |
| Northgate Terrace Community Club | Coupeville, WA | 750 | 39 | - |
| Heritage University Water System | Toppenish, WA | 750 | 56 | - |
| Lewis Co Water Sewer Dist #6 | Mossyrock, WA | 740 | 33 | - |
| Lake Holiday Association | Port Orchard, WA | 740 | 13 | - |
| Skagit Speedways | Mount Vernon, WA | 736 | 71 | - |
| Lost Lake Property Owners Assn | Coupeville, WA | 736 | 49 | Clean |
| Memorial Bible Church | Othello, WA | 736 | 23 | - |
| Palouse Empire Fairgrounds | Colfax, WA | 733 | 27 | - |
| Stevens Co PUD - Clayton | Loon Lake, WA | 725 | 31 | - |
| Lynch Cove | Freeland, WA | 721 | 21 | - |
| Sun Cove Public Water System | Cashmere, WA | 716 | 20 | - |
| Jarrell Cove State Park | Belfair, WA | 715 | 21 | - |
| Larch Corrections Center | Yacolt, WA | 705 | 366 | - |
| Lyman Water Department | Mount Vernon, WA | 705 | 28 | - |
| Mount Baker School District-Deming | Deming, WA | 700 | 27 | - |
| Packaging Corporation of America | Wallula, WA | 700 | 35 | - |
| Ephrata Raceway Park | Ephrata, WA | 700 | 28 | - |
| Union | Union, WA | 700 | 25 | - |
| Kittitas County Water District #5 | Cle Elum, WA | 699 | 21 | - |
| Oak Park | Shelton, WA | 695 | 61 | - |
| Garfield Water Department | WA | 694 | 34 | - |
| McNeil Island Water | Tumwater, WA | 692 | 75 | - |
| Ocean Breeze Resort | Fife, WA | 687 | 24 | - |
| Telford Rest Area | Davenport, WA | 686 | 20 | - |
| Selah Cr Nb Rest Area | Yakima, WA | 685 | 12 | - |
| Tolmie State Park | Olympia, WA | 683 | 22 | - |
| Grandview Condominiums | Port Orchard, WA | 679 | 2 | - |
| WSDP Mt Spokane St Park #3 | Nine Mile Falls, WA | 679 | 18 | - |
| Cusick Town Of | Cusick, WA | 672 | 39 | - |
| Griffin School | Port Orchard, WA | 672 | 48 | - |
| Forty Nine Degrees North | Marshall, WA | 670 | 12 | - |
| Chinook Water District | Chinook, WA | 664 | 37 | - |
| Wilderness Ridge Community Club | Coupeville, WA | 664 | 50 | - |
| Great Basin Water Burbank | Pasco, WA | 656 | 762 | - |
| Shadow Mountain | Sequim, WA | 656 | 38 | - |
| Spencer Spit State Park | Olga, WA | 655 | 11 | - |
| South Sound Speedway | Port Orchard, WA | 654 | 33 | - |
| Del Mar Community Service | Anacortes, WA | 654 | 11 | - |
| WSDP Riverside SP ORV Area | Nine Mile Falls, WA | 651 | 5 | - |
| Harrington City Of | Waverly, WA | 650 | 244 | Clean |
| Sand Hill Elementary | Port Orchard, WA | 650 | 239 | - |
| Lamb-Weston Pasco | Pasco, WA | 650 | 40 | - |