Water quality for ZIP code 99643
ZIP 99643 covers Old Harbor in Kodiak Island Borough, Alaska, one of 6 ZIP codes in the county. 16 active public water systems serve the county; 13 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Kodiak Island Borough
7 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Larsen Bay Water System Larsen Bay |
271 | 11 | 32.8 mi | |
| Akhiok Akhiok |
90 | 9 | 36.8 mi | |
| Uscg Station Kodiak Kodiak |
3,092 | 3 | 46.8 mi | |
| Karluk Water System Karluk |
60 | 2 | 47.6 mi | |
| Port Lions Port Lions |
175 | 9 | 48.6 mi | |
| Kodiak Water System Kodiak |
9,547 | 0 | 53.6 mi | |
| Ouzinkie Water System Ouzinkie |
144 | 4 | 57.5 mi |
Non-community systems in Kodiak Island Borough (8: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Olds River Inn Kodiak |
85 | 2 | 0 | |
|
Rendezvous Kodiak |
56 | 2 | 0 | |
|
Bells Flats Kodiak |
150 | 2 | 0 | |
|
Alaska Aerospace Corporation Kodiak |
61 | 0 | 0 | |
|
Uscg Bear Valley Golf Course Kodiak |
59 | 0 | 0 | |
|
VFW Kodiak Post #7056 Kodiak |
46 | 4 | 0 | |
|
Southeast Alaska Logging Kodiak |
45 | 6 | 0 | |
|
Java Flats/russian River Roadhouse Kodiak |
39 | 3 | 0 |
About this data
Water systems are matched to Kodiak Island Borough, the county this ZIP code lies in, nearest to the ZIP code's centre first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA files.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Alaska records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.