County · Alaska
Aleutians West Census Area, Alaska: drinking water records
This overview covers 7 ZIP codes and 6 community water systems in Aleutians West Census Area. 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 |
|---|---|---|---|---|---|
| Unalaska Water System AK2260309 | 9,400 | 240 | 0 | 0 | 3.1 ppb |
| Saint Paul Water System AK2260286 | 380 | 0 | 0 | 7 | 0.7 ppb |
| Adak Utilities AK2260595 | 325 | 0 | 0 | 7 | 13 ppb |
| Saint George Water System AK2260074 | 65 | 0 | 0 | 1 | 1.6 ppb |
| Atka AK2260058 | 50 | 0 | 0 | 7 | 3.7 ppb |
| Nikolski Village AK2260278 | 34 | 0 | 0 | 0 | 12.6 ppb |
ZIP reports in Aleutians West Census Area
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.