County · Washington
Kittitas County, Washington: drinking water records
This overview covers 10 ZIP codes and 37 community water systems in Kittitas 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 |
|---|---|---|---|---|---|
| Ellensburg Water Dept WA5322950 | 20,900 | 480 | 0 | 0 | 1.5 ppb |
| Mountain Ridge WA53AB326 | 28 | 0 | 0 | 1 | 3.5 ppb |
| Suncadia Resort WA53AA317 | 2,640 | 0 | 0 | 0 | 13 ppb |
| Kittitas City of WA5342650 | 2,247 | 0 | 0 | 0 | 1 ppb |
| Cle Elum Water Department WA5313500 | 2,213 | 0 | 0 | 0 | 0 ppb |
| Roslyn City of WA5374400 | 2,099 | 0 | 0 | 0 | 0 ppb |
| Kittitas County Water District #5 WA5342704 | 700 | 0 | 0 | 0 | 0 ppb |
| South Cle Elum Water Dept WA5381600 | 541 | 0 | 0 | 0 | 0 ppb |
| Kittitas County Water District #4 WA5342447 | 510 | 0 | 0 | 0 | 0 ppb |
| Kittitas County Water District #7 WA5385295 | 463 | 0 | 0 | 0 | 0 ppb |
| Vantage Water System WA5391250 | 405 | 0 | 0 | 0 | 0 ppb |
| Easton Water District WA5342700 | 362 | 0 | 0 | 0 | 0 ppb |
| Sun Country Estates 1-2-3 WA5385123 | 277 | 0 | 0 | 0 | 1.5 ppb |
| Grasslands Water System WA5329172 | 264 | 0 | 0 | 0 | 0 ppb |
| Mill Pond Community LLC WA5354775 | 245 | 0 | 0 | 0 | 0 ppb |
| Kittitas Co WD #2 WA5374100 | 242 | 0 | 0 | 0 | 0.8 ppb |
| Pineloch Sun Beach Club WA5367640 | 190 | 0 | 0 | 0 | 1.3 ppb |
| Palomino Fields WA53AD362 | 156 | 0 | 0 | 0 | 0 ppb |
| Evergreen Valley WA5302150 | 152 | 0 | 0 | 0 | 0 ppb |
| Afc Ranch 2 WA5300863 | 125 | 0 | 0 | 0 | 0 ppb |
| Driftwood Acres Maintenance Corp WA5319943 | 114 | 0 | 0 | 0 | 0.8 ppb |
| Central Mobile Home Park WA5312170 | 110 | 0 | 0 | 0 | 0 ppb |
| Sky Meadows Ranch Country Club Wtr WA5380005 | 98 | 0 | 0 | 0 | 0 ppb |
| Sun Island Maintenance Assn WA5385128 | 97 | 0 | 0 | 0 | 0 ppb |
| Wildwood 2 and 3 WA5396883 | 93 | 0 | 0 | 0 | 0 ppb |
ZIP reports in Kittitas 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.