County · Alaska
Ketchikan Gateway Borough, Alaska: drinking water records
This overview covers 1 ZIP codes and 14 community water systems in Ketchikan Gateway Borough. 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 |
|---|---|---|---|---|---|
| Ketchikan Public Utilities AK2120232 | 8,937 | 120 | 0 | 1 | 2.5 ppb |
| Metlakatla 100211202 | 1,575 | 0 | 0 | 30 | 0 ppb |
| Craig Public Works AK2120193 | 1,475 | 0 | 0 | 9 | 4.6 ppb |
| South Tongass Water Utility AK2121510 | 975 | 0 | 0 | 6 | 1.9 ppb |
| Klawock AK2120169 | 904 | 0 | 0 | 37 | 3.6 ppb |
| Thorne Bay, City of AK2120216 | 470 | 0 | 0 | 28 | 0 ppb |
| Saxman AK2120127 | 450 | 0 | 0 | 2 | 9 ppb |
| Hydaburg AK2120224 | 415 | 0 | 0 | 41 | 0 ppb |
| Vallenar View Mobile Home Park AK2120012 | 225 | 0 | 0 | 40 | 1.9 ppb |
| Coffman Cove AK2120436 | 199 | 0 | 0 | 12 | 0 ppb |
| Kasaan AK2120606 | 66 | 0 | 0 | 12 | 2 ppb |
| Port Protection AK2121123 | 60 | 0 | 0 | 11 | 1.0 ppb |
| Ketchikan Water, Truck 1 AK2121527 | 100 | 0 | 0 | 0 | not reported |
| Ketchikan H2o AK2121479 | 25 | 0 | 0 | 0 | not reported |
ZIP reports in Ketchikan Gateway Borough
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.