Public water system record
Gulkana Village
Serves Gulkana, Copper River Census Area, AK · 54 people served
Federal records show 18 health-based violations and 43 monitoring/reporting issues for Gulkana Village in the last ten years. The most serious issue in this window was a resolved Total Trihalomethanes (TTHMs) violation.
System profile
Source water
Surface water
ZIP
99586
EPA system ID
AK2380214
- Health-based violations, last 10 years
- 18
- Resolved
- 18
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 43
Key facts
- Gulkana Village draws water from 1 infiltration gallery.
- Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.165 mg/L, federal limit 0.08 mg/L (2.1 times the limit), 2020.
- Most recent enforcement action: boil water order by Alaska, October 2024.
- Record on file since 1985, with 109 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 36 service lines.
Check whether Gulkana Village serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.081 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
220 | Jul 1, 2024 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.096 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
220 | Apr 1, 2024 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.107 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
|
220 | Jan 1, 2024 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.09 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Oct 1, 2023 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.1 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
|
220 | Jul 1, 2023 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.09 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Apr 1, 2023 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.09 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Jan 1, 2023 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.097 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
220 | Oct 1, 2022 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.087 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Oct 1, 2021 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.128 mg/L, federal limit 0.08 mg/L (1.6 times the limit)
|
220 | Jul 1, 2021 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.135 mg/L, federal limit 0.08 mg/L (1.7 times the limit)
|
220 | Apr 1, 2021 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.138 mg/L, federal limit 0.08 mg/L (1.7 times the limit)
|
220 | Jan 1, 2021 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.165 mg/L, federal limit 0.08 mg/L (2.1 times the limit)
|
220 | Oct 1, 2020 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
220 | Oct 1, 2018 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
220 | Apr 1, 2018 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Aug 1, 2017 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Jun 1, 2017 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | May 1, 2017 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Surface Water Treatment Rule
Monitoring and reporting
|
Sep 1, 2025 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jun 1, 2025 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Nov 1, 2024 | Resolved |
|
Chlorine
Monitoring and reporting
|
Nov 1, 2024 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Nov 1, 2024 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jul 1, 2024 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Apr 1, 2024 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Apr 1, 2024 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Sep 1, 2023 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2023 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jul 1, 2023 | Resolved |
|
Public Notice
OTHER
|
May 20, 2023 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
May 1, 2023 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
May 1, 2023 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2023 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 9, 2023 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Oct 1, 2022 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Aug 1, 2022 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Aug 1, 2022 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jul 1, 2022 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
May 1, 2022 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jul 1, 2021 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Nov 1, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Nov 1, 2017 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Aug 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jun 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
May 1, 2017 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Apr 1, 2017 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Apr 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Mar 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Feb 1, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Feb 1, 2017 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Dec 1, 2016 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Nov 1, 2016 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Nov 1, 2016 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
Full record since 1985
EPA's records for Gulkana Village go back to 1985. Before October 19, 2016 they list 109 health-based violations (80 resolved, 29 archived by EPA without a recorded fix) and 468 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 1 |
| 1990s | 13 | 241 |
| 2000s | 58 | 81 |
| 2010 to October 18, 2016 | 38 | 145 |
| October 19, 2016 to 2019 | 5 | 19 |
| 2020s | 13 | 23 |
Most recent health-based violation before October 19, 2016: Surface Water Treatment Rule, began June 2014, Resolved.
Show all 109 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Surface Water Treatment Rule
Treatment technique failure
|
Jun 1, 2014 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Apr 1, 2014 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.068 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
Jul 1, 2013 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.135 mg/L, federal limit 0.08 mg/L (1.7 times the limit)
|
Jul 1, 2013 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.121 mg/L, federal limit 0.06 mg/L (2 times the limit)
|
Apr 1, 2013 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.17 mg/L, federal limit 0.08 mg/L (2.1 times the limit)
|
Apr 1, 2013 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Feb 1, 2013 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.157 mg/L, federal limit 0.06 mg/L (2.6 times the limit)
|
Jan 1, 2013 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.199 mg/L, federal limit 0.08 mg/L (2.5 times the limit)
|
Jan 1, 2013 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.205 mg/L, federal limit 0.08 mg/L (2.6 times the limit)
|
Oct 1, 2012 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.183 mg/L, federal limit 0.06 mg/L (3.1 times the limit)
|
Oct 1, 2012 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Sep 1, 2012 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.204 mg/L, federal limit 0.08 mg/L (2.6 times the limit)
|
Jul 1, 2012 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.191 mg/L, federal limit 0.06 mg/L (3.2 times the limit)
|
Jul 1, 2012 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.136 mg/L, federal limit 0.06 mg/L (2.3 times the limit)
|
Apr 1, 2012 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.179 mg/L, federal limit 0.08 mg/L (2.2 times the limit)
|
Apr 1, 2012 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.117 mg/L, federal limit 0.06 mg/L (2 times the limit)
|
Jan 1, 2012 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.166 mg/L, federal limit 0.08 mg/L (2.1 times the limit)
|
Jan 1, 2012 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Dec 1, 2011 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Nov 1, 2011 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.103 mg/L, federal limit 0.06 mg/L (1.7 times the limit)
|
Oct 1, 2011 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.162 mg/L, federal limit 0.08 mg/L (2 times the limit)
|
Oct 1, 2011 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Sep 1, 2011 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.121 mg/L, federal limit 0.08 mg/L (1.5 times the limit)
|
Jul 1, 2011 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.062 mg/L, federal limit 0.06 mg/L (at or just above the limit)
|
Jul 1, 2011 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.135 mg/L, federal limit 0.08 mg/L (1.7 times the limit)
|
Apr 1, 2011 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.1 mg/L, federal limit 0.06 mg/L (1.7 times the limit)
|
Apr 1, 2011 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.156 mg/L, federal limit 0.08 mg/L (2 times the limit)
|
Jan 1, 2011 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.152 mg/L, federal limit 0.06 mg/L (2.5 times the limit)
|
Jan 1, 2011 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.155 mg/L, federal limit 0.08 mg/L (1.9 times the limit)
|
Oct 1, 2010 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.179 mg/L, federal limit 0.06 mg/L (3 times the limit)
|
Oct 1, 2010 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.156 mg/L, federal limit 0.08 mg/L (2 times the limit)
|
Jul 1, 2010 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.192 mg/L, federal limit 0.06 mg/L (3.2 times the limit)
|
Jul 1, 2010 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.148 mg/L, federal limit 0.08 mg/L (1.9 times the limit)
|
Apr 1, 2010 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.189 mg/L, federal limit 0.06 mg/L (3.2 times the limit)
|
Apr 1, 2010 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Apr 1, 2010 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.141 mg/L, federal limit 0.08 mg/L (1.8 times the limit)
|
Jan 1, 2010 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.168 mg/L, federal limit 0.06 mg/L (2.8 times the limit)
|
Jan 1, 2010 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.173 mg/L, federal limit 0.06 mg/L (2.9 times the limit)
|
Oct 1, 2009 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.151 mg/L, federal limit 0.08 mg/L (1.9 times the limit)
|
Oct 1, 2009 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.187 mg/L, federal limit 0.08 mg/L (2.3 times the limit)
|
Jul 1, 2009 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.287 mg/L, federal limit 0.06 mg/L (4.8 times the limit)
|
Jul 1, 2009 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.26 mg/L, federal limit 0.06 mg/L (4.3 times the limit)
|
Apr 1, 2009 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.178 mg/L, federal limit 0.08 mg/L (2.2 times the limit)
|
Apr 1, 2009 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.285 mg/L, federal limit 0.06 mg/L (4.8 times the limit)
|
Jan 1, 2009 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.178 mg/L, federal limit 0.08 mg/L (2.2 times the limit)
|
Jan 1, 2009 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.186 mg/L, federal limit 0.08 mg/L (2.3 times the limit)
|
Oct 1, 2008 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.266 mg/L, federal limit 0.06 mg/L (4.4 times the limit)
|
Oct 1, 2008 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jun 1, 2008 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.208 mg/L, federal limit 0.08 mg/L (2.6 times the limit)
|
Apr 1, 2008 | Resolved |
59 older violations are not listed here. EPA ECHO has the complete list.
Enforcement actions
Alaska regulators took 1 formal enforcement action against Gulkana Village and issued 5 boil water orders between 1994 and 2024. The most recent was a boil water order in October 2024.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Oct 10, 2024 | Alaska | Boil water order | 1 violation |
| May 31, 2024 | Alaska | Boil water order | 1 violation |
| Sep 25, 2018 | Alaska | Boil water order | 1 violation |
| Dec 11, 2017 | Alaska | Boil water order | 1 violation |
| Jun 26, 2017 | Alaska | Boil water order | 1 violation |
| Sep 1, 1994 | Alaska | Signed compliance agreement | 6 violations: Total Coliform |
What the violations mean
Total Trihalomethanes (TTHMs)
15 incidentsDisinfection byproduct levels exceeded the federal limit
Long-term TTHM exposure may increase bladder cancer risk
Surface Water Treatment Rule
3 incidentsThe system did not complete a treatment step or action that the Surface Water Treatment Rule requires (a treatment technique violation).
The utility had to notify customers about each of these violations.
Where the water comes from
Gulkana Village draws water from 1 infiltration gallery.
Annual water quality report
Gulkana Village must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Gulkana Village for a copy.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Alaska.
Certified drinking water labs by state EPA guidance for private wells