Nitrate violations in Alaska
210 active public water systems in Alaska had a Nitrate violation in the past three years, 1 of them still unresolved. What Nitrate is and why it matters.
Health effects: Methemoglobinemia in infants under 6 months: gut bacteria convert nitrate to nitrite, which blocks oxygen transport in blood. Pregnant women should also take precautions. Chronic adult exposure at elevated levels may increase cancer risk.
Systems with a Nitrate violation
Unresolved first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Amazing Grace Lutheran Church Anchorage · Anchorage Municipality County |
354 | 3 | 0 | |
|
Unalaska Water System Unalaska · Aleutians West Census Area County |
9,400 | 6 | 0 | |
|
City of Hooper Bay Hooper Bay · County |
1,375 | 10 | 4 | |
|
Hoonah PWS Hoonah · County |
980 | 7 | 0 | |
|
Chevak Water System Chevak · County |
938 | 7 | 2 | |
|
Mountain Village Water System Mountain Village · County |
887 | 11 | 2 | |
|
Selawik Safewater Facility Selawik · Northwest Arctic Borough County |
846 | 9 | 3 | |
|
Sand Point Water System Sand Point · Aleutians East Borough County |
830 | 7 | 0 | |
|
Kwethluk New Piped Water System Kwethluk · Bethel Census Area County |
760 | 11 | 2 | |
|
Gambell Water System Gambell · Nome Census Area County |
669 | 10 | 2 | |
|
Toksook Bay Water System Toksook Bay · Bethel Census Area County |
661 | 5 | 2 | |
|
Kipnuk Water System Kipnuk · Bethel Census Area County |
639 | 8 | 0 | |
|
Buckland Water System Buckland · Northwest Arctic Borough County |
600 | 11 | 1 | |
|
Pilot Station Water System Pilot Station · County |
580 | 6 | 1 | |
|
Seven Glaciers Restaurant Girdwood · Anchorage Municipality County |
572 | 2 | 0 | |
|
Alakanuk Water System Alakanuk · County |
570 | 14 | 2 | |
|
Chefornak Water System Chefornak · Bethel Census Area County |
513 | 8 | 2 | |
|
Salcha Community Watering Point Salcha · Fairbanks North Star Borough County |
508 | 7 | 4 | |
|
Egegik Egegik · Lake and Peninsula Borough County |
485 | 3 | 1 | |
|
Totem Trailer Town TC Anchorage · Anchorage Municipality County |
480 | 3 | 0 | |
|
AC Alaska Commercial Store Bethel · Bethel Census Area County |
475 | 6 | 0 | |
|
Thorne Bay, City of Thorne Bay · County |
470 | 6 | 1 | |
|
Usfs Begich Boggs Portage VC Girdwood · Anchorage Municipality County |
463 | 2 | 0 | |
|
Kiana Water System Kiana · Northwest Arctic Borough County |
455 | 7 | 2 | |
|
Angoon Public Water Angoon · County |
450 | 13 | 2 | |
|
Bethel Trailer Court Bethel · Bethel Census Area County |
446 | 5 | 0 | |
|
Bear Trap Cafe Skagway · County |
433 | 2 | 0 | |
|
Hydaburg Hydaburg · County |
415 | 10 | 3 | |
|
Kwigillingok Washeteria Kwigillingok · Bethel Census Area County |
400 | 10 | 0 | |
|
Poachers Cove Planned Unit Development Soldotna · Kenai Peninsula Borough County |
400 | 2 | 1 | |
|
Lksd Tununak Paul Albert HS Tununak · Bethel Census Area County |
385 | 9 | 0 | |
|
Tuluksak Water System Tuluksak · Bethel Census Area County |
373 | 9 | 0 | |
|
Nikolaevsk Community Water System Nikolaevsk · Kenai Peninsula Borough County |
360 | 6 | 0 | |
|
Kings Chapel Wasilla · Matanuska-Susitna Borough County |
350 | 1 | 0 | |
|
Tuntutuliak Washeteria and Watering PT Tuntutuliak · Bethel Census Area County |
350 | 7 | 0 | |
|
Akiak Community Water System Akiak · Bethel Census Area County |
346 | 6 | 0 | |
|
Russian Mission Water System Russian Mission · County |
340 | 6 | 1 | |
|
Napakiak Washeteria Napakiak · Bethel Census Area County |
336 | 6 | 1 | |
|
Atmautluak Water System Atmautluak · Bethel Census Area County |
311 | 8 | 1 | |
|
Marshall Water System Marshall · County |
308 | 8 | 0 | |
|
Kenai Fjords Tours Seward · Kenai Peninsula Borough County |
306 | 4 | 0 | |
|
North Pacific Seafoods, Pederson Point Naknek · Bristol Bay Borough County |
300 | 2 | 1 | |
|
Slavic Evangelical Church Wasilla · Matanuska-Susitna Borough County |
298 | 3 | 1 | |
|
Manokotak Water System Manokotak · Dillingham Census Area County |
293 | 8 | 2 | |
|
Nanwalek Nanwalek · Kenai Peninsula Borough County |
281 | 11 | 2 | |
|
Eek Water System Eek · Bethel Census Area County |
280 | 9 | 0 | |
|
Larsen Bay Water System Larsen Bay · Kodiak Island Borough County |
271 | 11 | 0 | |
|
Too'gha INC in Tanana Tanana · Yukon-Koyukuk Census Area County |
271 | 9 | 1 | |
|
Mom & Pops 4 Corners Plaza Palmer · Matanuska-Susitna Borough County |
270 | 3 | 0 | |
|
Ambler Community Water System Ambler · Northwest Arctic Borough County |
261 | 6 | 2 |
About this data
A system is counted once if any of its violations in the past three years involved Nitrate, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Nitrate alone.
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.