County · Alaska
Dillingham Census Area, Alaska: drinking water records
This overview covers 7 ZIP codes and 11 community water systems in Dillingham Census Area. It also stands in for 2 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 |
|---|---|---|---|---|---|
| Dillingham Water System AK2260197 | 2,419 | 0 | 0 | 2 | 3 ppb |
| New Stuyahok Water System AK2260367 | 566 | 0 | 0 | 9 | 1 ppb |
| Manokotak Water System AK2260090 | 293 | 0 | 0 | 8 | 6.1 ppb |
| Manokotak Heights W/S AK2262246 | 215 | 0 | 0 | 6 | 0 ppb |
| Koliganek Water System AK2260040 | 170 | 0 | 0 | 5 | 5.8 ppb |
| Clarks Point Water System AK2260202 | 128 | 0 | 0 | 5 | 10.1 ppb |
| Twin Hills Water System AK2260032 | 87 | 0 | 0 | 8 | 0.7 ppb |
| Nina Nicholson Subdivision AK2263010 | 31 | 0 | 0 | 3 | 0 ppb |
| Salmon Roe AK2261460 | 31 | 0 | 0 | 1 | 2.1 ppb |
| Togiak Water System AK2260325 | 910 | 0 | 0 | 0 | 1.1 ppb |
| Bbahc - Kanakanak Hospital AK2261282 | 305 | 0 | 0 | 0 | 11 ppb |
ZIP reports in Dillingham Census Area
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: 99555, 99580.
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.