Groundwater Rule (GWR) violations in Alaska
82 active public water systems in Alaska had a Groundwater Rule (GWR) violation in the past three years, 81 of them in the latest quarter of EPA's data. What Groundwater Rule (GWR) is and why it matters.
Health effects: Protects against enteric viruses, which can contaminate groundwater via cracked well casings, failing septic systems, or animal waste. Viruses persist longer in groundwater than in surface water. Hepatitis A and norovirus are the primary pathogens of concern.
Systems with a Groundwater Rule (GWR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Dillingham Water System Dillingham · Dillingham Census Area County |
2,419 | 7 | 0 | |
|
Valley Water Company Fairbanks · Fairbanks North Star Borough County |
1,575 | 6 | 3 | |
|
Chevak Water System Chevak · County |
938 | 7 | 2 | |
|
Mountain Village Water System Mountain Village · County |
887 | 11 | 2 | |
|
Unalakleet City Water Supply Unalakleet · Nome Census Area County |
757 | 6 | 0 | |
|
Alaska General Seafoods Naknek Cannery Naknek · Bristol Bay Borough County |
600 | 2 | 2 | |
|
New Stuyahok Water System New Stuyahok · Dillingham Census Area County |
566 | 8 | 2 | |
|
Salcha Community Watering Point Salcha · Fairbanks North Star Borough County |
508 | 7 | 4 | |
|
Galena Wtp1 City Galena · Yukon-Koyukuk Census Area County |
490 | 5 | 1 | |
|
Asd Ravenwood School Eagle River · Anchorage Municipality County |
472 | 1 | 1 | |
|
Red Salmon Cannery Naknek · Bristol Bay Borough County |
450 | 2 | 1 | |
|
Msbsd Tanaina Elementary Wasilla · Matanuska-Susitna Borough County |
439 | 1 | 1 | |
|
Wendy's Old Seward Anchorage · Anchorage Municipality County |
415 | 2 | 0 | |
|
Saint Paul Water System Saint Paul · Aleutians West Census Area County |
380 | 7 | 1 | |
|
Glennallen Water Works Glennallen · County |
365 | 3 | 0 | |
|
Msbsd Big Lake Elem #2 New Wasilla · Matanuska-Susitna Borough County |
365 | 1 | 0 | |
|
Valley Country Store #2 Wasilla · Matanuska-Susitna Borough County |
365 | 1 | 1 | |
|
Usnps Katmai Brooks Camp King Salmon · Bristol Bay Borough County |
350 | 2 | 1 | |
|
Russian Mission Water System Russian Mission · County |
340 | 6 | 1 | |
|
Huslia Public Water System Huslia · Yukon-Koyukuk Census Area County |
323 | 4 | 2 | |
|
Atmautluak Water System Atmautluak · Bethel Census Area County |
311 | 8 | 1 | |
|
Lower Kalskag Water System Kalskag Upper / Lower · Bethel Census Area County |
302 | 5 | 2 | |
|
Slavic Evangelical Church Wasilla · Matanuska-Susitna Borough County |
298 | 3 | 1 | |
|
Manokotak Water System Manokotak · Dillingham Census Area County |
293 | 8 | 2 | |
|
Nightmute New Watering Point Nightmute · Bethel Census Area County |
243 | 5 | 3 | |
|
Kathy O Estates Anchorage · Anchorage Municipality County |
242 | 2 | 1 | |
|
Old Kasigluk Akiuk Kasigluk · Bethel Census Area County |
240 | 7 | 1 | |
|
Knudson Cove Marina Ketchikan · Ketchikan Gateway Borough County |
233 | 1 | 1 | |
|
Ruby Water System Ruby · Yukon-Koyukuk Census Area County |
215 | 6 | 1 | |
|
Turtle Club Fairbanks · Fairbanks North Star Borough County |
204 | 2 | 1 | |
|
Eagle Log Wellhouse Eagle · Southeast Fairbanks Census Area County |
192 | 7 | 4 | |
|
Wasilla Lake Church of the Nazarene Wasilla · Matanuska-Susitna Borough County |
188 | 2 | 1 | |
|
Forest Park TC Chugiak · Anchorage Municipality County |
175 | 12 | 3 | |
|
Northern Lights Terrace Wasilla · Matanuska-Susitna Borough County |
168 | 4 | 1 | |
|
Lfs Naknek Marine Center Naknek · Bristol Bay Borough County |
156 | 2 | 2 | |
|
Bells Flats Kodiak · Kodiak Island Borough County |
150 | 2 | 0 | |
|
Ekuk Fisheries Dillingham · Dillingham Census Area County |
150 | 3 | 1 | |
|
Lds Colony Chapel Palmer · Matanuska-Susitna Borough County |
150 | 1 | 1 | |
|
Crooked Creek Watering Point Crooked Creek · Bethel Census Area County |
147 | 6 | 1 | |
|
Denali Crows Nest Denali Park · Denali Borough County |
132 | 2 | 1 | |
|
Forks Roadhouse Reborn Trapper Creek · Matanuska-Susitna Borough County |
130 | 1 | 1 | |
|
Chuathbaluk Water System Chuathbaluk · Bethel Census Area County |
123 | 9 | 2 | |
|
Wildwood Homes LLC Fairbanks · Fairbanks North Star Borough County |
114 | 4 | 2 | |
|
Circle Washeteria Circle · Yukon-Koyukuk Census Area County |
110 | 6 | 0 | |
|
Victory Bible Camp Spring Palmer · Matanuska-Susitna Borough County |
110 | 2 | 1 | |
|
Tanacross Water System Tanacross · Southeast Fairbanks Census Area County |
108 | 8 | 4 | |
|
Rainbow Valley MHP Fairbanks · Fairbanks North Star Borough County |
105 | 2 | 1 | |
|
Anvik Water System Anvik · Yukon-Koyukuk Census Area County |
96 | 8 | 2 | |
|
Kobuk Water System Kobuk · Northwest Arctic Borough County |
93 | 8 | 1 | |
|
Rampart Washeteria Rampart · Yukon-Koyukuk Census Area County |
88 | 7 | 3 |
About this data
A system is counted once if any of its violations in the past three years involved Groundwater Rule (GWR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Groundwater Rule (GWR) 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.