Revised Total Coliform Rule (RTCR) violations in Alaska
498 active public water systems in Alaska had a Revised Total Coliform Rule (RTCR) violation in the past three years, 193 of them in the latest quarter of EPA's data. What Revised Total Coliform Rule (RTCR) is and why it matters.
Health effects: Total coliform bacteria indicate that the disinfection barrier has been breached or fecal contamination is entering the system. E. coli specifically indicates fecal contamination and the possible presence of disease-causing pathogens (norovirus, Salmonella, Shigella, Campylobacter). Illness can be severe in elderly, young children, and immunocompromised individuals.
Systems with a Revised Total Coliform Rule (RTCR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Delta Junction Iga & Home Town Square Delta Junction · Southeast Fairbanks Census Area County |
360 | 1 | 0 | |
|
Alpenglow Ski Lodge Anchorage · Anchorage Municipality County |
354 | 1 | 0 | |
|
Amazing Grace Lutheran Church Anchorage · Anchorage Municipality County |
354 | 3 | 0 | |
|
Ice Services Treatment Plant # 2015 Deadhorse, Prudhoe Bay · North Slope Borough County |
349 | 2 | 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 | |
|
Huslia Public Water System Huslia · Yukon-Koyukuk Census Area County |
323 | 4 | 2 | |
|
Three Bears #17 Delta Junction Delta Junction · Southeast Fairbanks Census Area County |
320 | 1 | 0 | |
|
Atmautluak Water System Atmautluak · Bethel Census Area County |
311 | 8 | 1 | |
|
Marshall Water System Marshall · County |
308 | 8 | 0 | |
|
Three Bears Cooper Landing Cooper Landing · Kenai Peninsula Borough County |
308 | 1 | 0 | |
|
Kenai Fjords Tours Seward · Kenai Peninsula Borough County |
306 | 4 | 0 | |
|
Lower Kalskag Water System Kalskag Upper / Lower · Bethel Census Area County |
302 | 5 | 2 | |
|
Denali Rock Creek Hq. Denali Park · Denali Borough County |
300 | 3 | 0 | |
|
Grace Brethren Church E/r Eagle River · Anchorage Municipality County |
300 | 1 | 0 | |
|
Bering ST SD Teller Sc/wash Teller · Nome Census Area County |
295 | 4 | 0 | |
|
Galena Wtp2 Gila Galena · Yukon-Koyukuk Census Area County |
290 | 4 | 1 | |
|
Eek Water System Eek · Bethel Census Area County |
280 | 9 | 0 | |
|
Meadow Lakes Center Wasilla · Matanuska-Susitna Borough County |
276 | 3 | 1 | |
|
New Kasigluk Water System Kasigluk · Bethel Census Area County |
276 | 3 | 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 | |
|
Lksd Nightmute HS & Elem Nightmute · Bethel Census Area County |
259 | 7 | 0 | |
|
Portage Glacier Lodge Girdwood · Anchorage Municipality County |
257 | 3 | 1 | |
|
Gold Rush Trail Camp Skagway · County |
256 | 1 | 0 | |
|
Churchill Park Juneau · Juneau City and Borough County |
250 | 2 | 0 | |
|
Old Harbor Old Harbor · Kodiak Island Borough County |
246 | 9 | 0 | |
|
Nulato River Well Nulato · Yukon-Koyukuk Census Area County |
245 | 4 | 0 | |
|
Old Kasigluk Akiuk Kasigluk · Bethel Census Area County |
240 | 7 | 1 | |
|
Silver Creek Springs SD Palmer · Matanuska-Susitna Borough County |
239 | 2 | 0 | |
|
Nsbu Point Lay Pt. Lay · North Slope Borough County |
237 | 4 | 0 | |
|
Kenny Lake Community Well Copper Center · County |
236 | 1 | 0 | |
|
Dgsd Delta Elementary School Delta Junction · Southeast Fairbanks Census Area County |
233 | 2 | 0 | |
|
Utopia Meadows SD Wasilla · Matanuska-Susitna Borough County |
232 | 3 | 0 | |
|
Lksd Chefornak Chaptnguak HS Chefornak · Bethel Census Area County |
230 | 2 | 0 | |
|
Pelican Utilities Pelican · County |
230 | 5 | 0 | |
|
Denali Borough SD Tri-Valley Healy · Denali Borough County |
226 | 1 | 0 | |
|
Bristol Bay Borough Dock Naknek · Bristol Bay Borough County |
225 | 2 | 0 | |
|
CV Grocers INC Glennallen · County |
222 | 1 | 0 | |
|
Home Port Condo Assoc. Inc. Kenai · Kenai Peninsula Borough County |
221 | 1 | 0 | |
|
Chapel by the Sea, Inc. Anchorage · Anchorage Municipality County |
220 | 1 | 0 | |
|
Kivalina K-12 School Kivalina · Northwest Arctic Borough County |
217 | 5 | 0 | |
|
Kpbsd Ninilchik Ninilchik · Kenai Peninsula Borough County |
216 | 2 | 0 | |
|
Kaltag Public Water System Kaltag · Yukon-Koyukuk Census Area County |
214 | 4 | 0 | |
|
Three Bears Ace Hardware Store #15 Tok · Southeast Fairbanks Census Area County |
210 | 1 | 0 | |
|
Little Beaver Camp Main Qtrs Big Lake · Matanuska-Susitna Borough County |
208 | 2 | 1 | |
|
Kenai Peninsula Food Bank Soldotna · Kenai Peninsula Borough County |
206 | 1 | 0 | |
|
Minto Community Water System Minto · Yukon-Koyukuk Census Area County |
205 | 10 | 0 | |
|
Turtle Club Fairbanks · Fairbanks North Star Borough County |
204 | 2 | 1 |
About this data
A system is counted once if any of its violations in the past three years involved Revised Total Coliform Rule (RTCR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Revised Total Coliform Rule (RTCR) 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.