County · Idaho
Latah County, Idaho: drinking water records
This overview covers 11 ZIP codes and 16 community water systems in Latah County. It also stands in for 1 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 |
|---|---|---|---|---|---|
| Potlatch City of ID2290030 | 812 | 180 | 0 | 1 | 0 ppb |
| Moscow Water Dept ID2290023 | 26,000 | 300 | 0 | 0 | 4 ppb |
| University of Idaho ID2290042 | 8,589 | 120 | 0 | 0 | 5 ppb |
| Genesee City of ID2290015 | 1,044 | 0 | 0 | 1 | 2 ppb |
| Troy City of ID2290041 | 850 | 0 | 0 | 1 | 5 ppb |
| Juliaetta City of ID2290018 | 624 | 0 | 0 | 21 | 23 ppb |
| North Tomer Butte W&s District ID2290010 | 259 | 0 | 0 | 1 | 2 ppb |
| Apex Living Community ID2290024 | 150 | 0 | 0 | 4 | 0 ppb |
| Hoo Doo Harvard Water and Sewer Dist ID2290017 | 82 | 0 | 0 | 2 | 7 ppb |
| Y Mobile Home Park ID2290050 | 52 | 0 | 0 | 1 | 0 ppb |
| Deary City of ID2290008 | 529 | 0 | 0 | 0 | 2 ppb |
| Kendrick City of ID2290019 | 313 | 0 | 0 | 0 | 1 ppb |
| Bovill Water Dept ID2290005 | 256 | 0 | 0 | 0 | 3 ppb |
| Onaway Water and Sewer Assn ID2290026 | 200 | 0 | 0 | 0 | 2 ppb |
| Viola Water and Sewer Dist ID2290046 | 128 | 0 | 0 | 0 | 1 ppb |
| Cone Delfred Subd ID2290020 | 40 | 0 | 0 | 0 | 8 ppb |
ZIP reports in Latah County
No ZIP report in this county is published yet.
These ZIP codes are covered by this overview because their utility has too little EPA data for a separate page: 83834.
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.