Public water system record
Shungnak Water System
Serves Shungnak, Northwest Arctic Borough, AK · 299 people served
Federal records show 3 health-based violations and 92 monitoring/reporting issues for Shungnak Water System in the last ten years. The most serious issue in this window was a resolved Surface Water Treatment Rule violation.
System profile
Source water
Surface water
ZIP
99773
EPA system ID
AK2340361
- Health-based violations, last 10 years
- 3
- Resolved
- 3
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 92
Key facts
- Shungnak Water System draws water from 1 surface water intake.
- Most recent enforcement action: boil water order by Alaska, September 2025.
- Record on file since 1985, with 39 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 68 service lines.
Check whether Shungnak Water System 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 |
|---|---|---|---|---|
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Feb 1, 2023 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Nov 1, 2022 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Oct 1, 2022 | 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
|
Jun 1, 2025 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Jun 1, 2025 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Nov 1, 2024 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Aug 1, 2024 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Jul 1, 2024 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jun 2, 2024 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
May 1, 2024 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
May 1, 2024 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Mar 1, 2024 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Mar 1, 2024 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Feb 1, 2024 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Feb 1, 2024 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 29, 2024 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Dec 1, 2023 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Nov 30, 2023 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Nov 1, 2023 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Oct 1, 2023 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Aug 1, 2023 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Aug 1, 2023 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jul 1, 2023 | Resolved |
|
Public Notice
OTHER
|
Jun 12, 2023 | Resolved |
|
Public Notice
OTHER
|
Apr 2, 2023 | Resolved |
|
Styrene
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Ethylbenzene
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Toluene
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Benzene
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
CHLOROBENZENE
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Tetrachloroethylene
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Trichloroethylene
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
1,2-Dichloropropane
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Carbon tetrachloride
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
1,2-Dichloroethane
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
1,1-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Vinyl chloride
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
p-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
o-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
DICHLOROMETHANE
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Xylenes, Total
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Nov 1, 2022 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Sep 1, 2022 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Jun 1, 2022 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
May 1, 2022 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Mar 1, 2022 | Resolved |
|
Styrene
Monitoring and reporting
|
Jan 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Ethylbenzene
Monitoring and reporting
|
Jan 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Toluene
Monitoring and reporting
|
Jan 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Benzene
Monitoring and reporting
|
Jan 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
CHLOROBENZENE
Monitoring and reporting
|
Jan 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Tetrachloroethylene
Monitoring and reporting
|
Jan 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Jan 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Trichloroethylene
Monitoring and reporting
|
Jan 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
1,2-Dichloropropane
Monitoring and reporting
|
Jan 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Carbon tetrachloride
Monitoring and reporting
|
Jan 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Jan 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
1,2-Dichloroethane
Monitoring and reporting
|
Jan 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
1,1-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Vinyl chloride
Monitoring and reporting
|
Jan 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
p-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
o-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
DICHLOROMETHANE
Monitoring and reporting
|
Jan 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Xylenes, Total
Monitoring and reporting
|
Jan 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Jan 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Nitrate
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Sep 1, 2021 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Aug 1, 2021 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jul 1, 2021 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jul 1, 2021 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jul 1, 2020 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jul 1, 2020 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2020 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Ground Water Rule
OTHER
|
Sep 18, 2012 | Resolved |
Full record since 1985
EPA's records for Shungnak Water System go back to 1985. Before October 19, 2016 they list 39 health-based violations (2 resolved, 37 archived by EPA without a recorded fix) and 642 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 29 |
| 1990s | 17 | 318 |
| 2000s | 21 | 270 |
| 2010 to October 18, 2016 | 1 | 25 |
| October 19, 2016 to 2019 | 0 | 2 |
| 2020s | 3 | 89 |
Most recent health-based violation before October 19, 2016: Surface Water Treatment Rule, began June 2015, Resolved.
Show all 39 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Surface Water Treatment Rule
Treatment technique failure
|
Jun 1, 2015 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
May 1, 2005 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Nov 1, 2004 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Oct 1, 2004 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Aug 1, 2004 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Aug 1, 2004 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jul 1, 2004 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jun 1, 2004 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jun 1, 2004 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
May 1, 2004 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
May 1, 2004 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Feb 1, 2004 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Dec 1, 2003 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Nov 1, 2003 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Oct 1, 2003 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Sep 1, 2003 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Aug 1, 2003 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jul 1, 2003 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
May 1, 2003 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
May 1, 2003 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
May 1, 2003 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 2003 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Apr 1, 1999 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Nov 1, 1998 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Aug 1, 1998 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Aug 1, 1997 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jun 1, 1997 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
May 1, 1997 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Apr 1, 1997 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Mar 1, 1997 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jun 1, 1996 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Feb 1, 1996 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jan 1, 1995 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Dec 1, 1994 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Nov 1, 1994 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Oct 1, 1994 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Dec 1, 1993 | Archived |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Oct 1, 1993 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1993 | Archived |
Enforcement actions
Alaska regulators and EPA took 3 formal enforcement actions against Shungnak Water System and issued 20 boil water orders between 1993 and 2025. The most recent was a boil water order in September 2025.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Sep 26, 2025 | Alaska | Boil water order | 1 violation |
| May 19, 2025 | Alaska | Boil water order | 1 violation |
| Jul 3, 2024 | Alaska | Boil water order | 1 violation |
| Jun 27, 2023 | Alaska | Boil water order | 1 violation |
| Dec 11, 2022 | Alaska | Boil water order | 1 violation |
| May 3, 2022 | Alaska | Boil water order | 1 violation |
| Jun 17, 2021 | Alaska | Boil water order | 1 violation |
| Dec 23, 2016 | Alaska | Boil water order | 1 violation |
| Dec 19, 2016 | Alaska | Boil water order | 1 violation |
| Dec 16, 2015 | Alaska | Boil water order | 1 violation |
| Dec 1, 2015 | Alaska | Boil water order | 1 violation |
| Nov 20, 2015 | Alaska | Boil water order | 1 violation |
| Nov 3, 2015 | Alaska | Boil water order | 1 violation |
| Jun 25, 2015 | Alaska | Boil water order | 1 violation |
| May 28, 2015 | Alaska | Boil water order | 1 violation |
| May 8, 2015 | Alaska | Boil water order | 1 violation |
| Nov 14, 2014 | Alaska | Boil water order | 1 violation |
| Sep 1, 2004 | EPA | Compliance order (no penalty) | 31 violations (13 health-based): Total Coliform, Surface Water Treatment Rule |
| Aug 19, 2004 | EPA | Compliance order (no penalty) | 43 violations (8 health-based): Thallium, Total, CYANIDE, Beryllium, Total, Antimony, Total, Surface Water Treatment Rule |
| Feb 12, 2003 | Alaska | Boil water order | 1 violation (1 health-based): Total Coliform |
| Aug 14, 2001 | Alaska | Signed compliance agreement | 3 violations: Surface Water Treatment Rule |
| Oct 21, 1993 | Alaska | Boil water order | 1 violation (1 health-based): Total Coliform |
| Jun 24, 1993 | Alaska | Boil water order | 1 violation |
What the violations mean
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
Shungnak Water System draws water from 1 surface water intake.
Annual water quality report
Shungnak Water System 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 Shungnak Water System 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