County · Washington
Jefferson County, Washington: drinking water records
This overview covers 8 ZIP codes and 27 community water systems in Jefferson County. It also stands in for 0 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Port Townsend City of WA5369000 | 17,053 | 120 | 0 | 0 | 3 ppb |
| Quimper WA5305783 | 14,548 | 480 | 1 | 0 | 2 ppb |
| Bridgehaven Community Club WA5308330 | 623 | 0 | 0 | 1 | 17 ppb |
| Hoh Tribe 105300011 | 120 | 0 | 0 | 4 | 8 ppb |
| Olympic Water & Sewer INC WA5368700 | 3,086 | 0 | 0 | 0 | 5.9 ppb |
| Cape George Colony Club INC WA5311050 | 1,022 | 0 | 0 | 0 | 0 ppb |
| Quileute Water System 105300016 | 885 | 0 | 0 | 0 | 2 ppb |
| Bywater Bay WA5302043 | 628 | 0 | 0 | 0 | 2 ppb |
| Jefferson County Water Dist #1 WA5336705 | 600 | 0 | 0 | 0 | 1.5 ppb |
| Olympic Corrections Center WA5313560 | 390 | 0 | 0 | 0 | 0.5 ppb |
| Gardiner Lud 1 WA5307877 | 379 | 0 | 0 | 0 | 0 ppb |
| Lazy C WA5302676 | 367 | 0 | 0 | 0 | 3 ppb |
| Coyle WA5336711 | 329 | 0 | 0 | 0 | 0 ppb |
| Triton Cove WA5389447 | 204 | 0 | 0 | 0 | 0 ppb |
| Discovery Bay Village WA5319430 | 191 | 0 | 0 | 0 | 5 ppb |
| Snow Creek WA5301220 | 156 | 0 | 0 | 0 | 0 ppb |
| Olympus Beach Tracts WA5363700 | 143 | 0 | 0 | 0 | 0 ppb |
| Pleasant Tides Water Co Op WA5303313 | 131 | 0 | 0 | 0 | 3 ppb |
| Discovery Bay Leaseholders WA5314071 | 123 | 0 | 0 | 0 | 0 ppb |
| Overlook Mobile Home Village ID5160037 | 120 | 0 | 0 | 0 | 0 ppb |
| Quilcene WA53AB292 | 119 | 0 | 0 | 0 | 0.5 ppb |
| Seamount Estates Community WA5376986 | 92 | 0 | 0 | 0 | 1.6 ppb |
| Rondelay Meadows WA5374130 | 90 | 0 | 0 | 0 | 2 ppb |
| Moa Tel WA5307816 | 73 | 0 | 0 | 0 | 2 ppb |
| Mats View WA5305536 | 52 | 0 | 0 | 0 | 0 ppb |
ZIP reports in Jefferson County
No ZIP report in this county is published yet.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.