Nitrate violations in Alaska
210 active public water systems in Alaska had a Nitrate violation in the past three years, 1 of them in the latest quarter of EPA's data. 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
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Lksd Nightmute HS & Elem Nightmute · Bethel Census Area County |
259 | 7 | 0 | |
|
Portage Glacier Lodge Girdwood · Anchorage Municipality County |
257 | 3 | 1 | |
|
Old Harbor Old Harbor · Kodiak Island Borough County |
246 | 9 | 0 | |
|
Nightmute New Watering Point Nightmute · Bethel Census Area County |
243 | 5 | 3 | |
|
Old Kasigluk Akiuk Kasigluk · Bethel Census Area County |
240 | 7 | 1 | |
|
Manokotak Heights W/s Manokotak · Dillingham Census Area County |
215 | 7 | 1 | |
|
Nunam Iqua Water System Nunam Iqua · Bethel Census Area County |
213 | 11 | 1 | |
|
Kings Lake Camp Well #1 Wasilla · Matanuska-Susitna Borough County |
211 | 2 | 0 | |
|
Nikiski Community Recreation Center Nikiski · Kenai Peninsula Borough County |
210 | 1 | 0 | |
|
Grayling Water System Grayling · Yukon-Koyukuk Census Area County |
207 | 13 | 2 | |
|
Minto Community Water System Minto · Yukon-Koyukuk Census Area County |
205 | 10 | 0 | |
|
Nondalton Nondalton · Lake and Peninsula Borough County |
205 | 10 | 2 | |
|
Chignik Lake Water System Chignik Lake · Lake and Peninsula Borough County |
200 | 6 | 3 | |
|
Napaskiak West Water System Napaskiak · Bethel Census Area County |
200 | 8 | 1 | |
|
Eagle Log Wellhouse Eagle · Southeast Fairbanks Census Area County |
192 | 7 | 4 | |
|
Durham Palmer Bus Garage Palmer · Matanuska-Susitna Borough County |
188 | 2 | 1 | |
|
Port Graham Port Graham · Kenai Peninsula Borough County |
180 | 8 | 0 | |
|
Forest Park TC Chugiak · Anchorage Municipality County |
175 | 12 | 3 | |
|
Port Lions Port Lions · Kodiak Island Borough County |
175 | 9 | 0 | |
|
Wales Water System Wales · Nome Census Area County |
173 | 9 | 2 | |
|
Koliganek Water System Koliganek · Dillingham Census Area County |
170 | 3 | 1 | |
|
Mertarvik Water System Newtok · Bethel Census Area County |
170 | 6 | 0 | |
|
Waterfall Resort Ketchikan · Ketchikan Gateway Borough County |
168 | 4 | 0 | |
|
Usfs Kenai Lake Work Center Crown Point · Kenai Peninsula Borough County |
162 | 3 | 0 | |
|
Badger Den Fairbanks · Fairbanks North Star Borough County |
158 | 3 | 2 | |
|
Ekuk Fisheries Dillingham · Dillingham Census Area County |
150 | 3 | 1 | |
|
Fairhill Christian School Fairbanks · Fairbanks North Star Borough County |
150 | 5 | 1 | |
|
Firedance Tutoring Center Wasilla · Matanuska-Susitna Borough County |
150 | 1 | 0 | |
|
Golovin Community Water System Golovin · Nome Census Area County |
150 | 8 | 2 | |
|
Kachemak Selo #3 Homer · Kenai Peninsula Borough County |
150 | 5 | 0 | |
|
Kenai Refinery Kenai · Kenai Peninsula Borough County |
150 | 1 | 0 | |
|
Crooked Creek Watering Point Crooked Creek · Bethel Census Area County |
147 | 6 | 1 | |
|
Sterling Baptist Church Sterling · Kenai Peninsula Borough County |
135 | 1 | 0 | |
|
Clarks Point Water System Clarks Point · Dillingham Census Area County |
128 | 6 | 2 | |
|
Salmon Creek Trailer Court Seward · Kenai Peninsula Borough County |
125 | 5 | 2 | |
|
Chuathbaluk Water System Chuathbaluk · Bethel Census Area County |
123 | 9 | 2 | |
|
Alaska General Seafoods Naknek-Freezing Naknek · Bristol Bay Borough County |
120 | 2 | 1 | |
|
Ministry of the Living Stones Sterling · Kenai Peninsula Borough County |
118 | 2 | 0 | |
|
Lksd Kwigillingok HS & Elem Kwigillingok · Bethel Census Area County |
117 | 7 | 0 | |
|
Spruce Lodge LLC Seward · Kenai Peninsula Borough County |
116 | 2 | 0 | |
|
Wildwood Homes LLC Fairbanks · Fairbanks North Star Borough County |
114 | 4 | 2 | |
|
Chilkat Indian Village Haines · Haines Borough County |
113 | 10 | 1 | |
|
Circle Washeteria Circle · Yukon-Koyukuk Census Area County |
110 | 6 | 0 | |
|
Ward Cove Deli & Liquor Ketchikan · Ketchikan Gateway Borough County |
110 | 2 | 0 | |
|
Pitka's Point Piped Water System Pitkas Point · County |
109 | 6 | 1 | |
|
Tanacross Water System Tanacross · Southeast Fairbanks Census Area County |
108 | 8 | 4 | |
|
Hughes Public Water Supply Hughes · Yukon-Koyukuk Census Area County |
107 | 9 | 2 | |
|
Haines Ferry Terminal Haines · Haines Borough County |
104 | 4 | 0 | |
|
All Seasons Clothing Store Wasilla · Matanuska-Susitna Borough County |
100 | 2 | 0 | |
|
Div of Parks Indian Valley Indian · Anchorage Municipality County |
100 | 3 | 0 |
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.