County · Tennessee
Knox County, Tennessee: drinking water records
This overview covers 23 ZIP codes and 6 community water systems in Knox 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 |
|---|---|---|---|---|---|
| West Knox Utility District TN0000371 | 77,825 | 239 | 0 | 1 | 1 ppb |
| Knoxville Utilities Board - Kub TN0000366 | 254,671 | 120 | 1 | 0 | 0.6 ppb |
| First U.D. of Knox County TN0000369 | 115,531 | 120 | 2 | 0 | 1 ppb |
| Hallsdale-Powell U.D. TN0000280 | 84,315 | 240 | 0 | 0 | 1 ppb |
| Knox-Chapman Utility District TN0000367 | 41,311 | 120 | 0 | 0 | 3.6 ppb |
| Northeast Knox U.D. TN0000515 | 27,941 | 120 | 0 | 0 | 1 ppb |
ZIP reports in Knox 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.