Public water system record
Chenega
Serves Chenega, Chugach Census Area, AK · 50 people served
Federal records show 25 health-based violations and 336 monitoring/reporting issues for Chenega 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
99503
EPA system ID
AK2291952
- Health-based violations, last 10 years
- 25
- Resolved
- 25
- Unresolved
- 0
- Any acute record
- Yes
- Monitoring issues, last 10 years
- 336
Key facts
- Chenega draws water from 1 surface water intake.
- Highest measured level in the last 10 years: Haloacetic Acids (HAA5), 0.095 mg/L, federal limit 0.06 mg/L (1.6 times the limit), 2022.
- Most recent enforcement action: boil water order by Alaska, September 2023.
- Record on file since 1985, with 16 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 30 service lines.
Check whether Chenega 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 | Jun 1, 2024 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | May 1, 2024 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Mar 1, 2024 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Sep 1, 2023 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Aug 1, 2023 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.06675 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
220 | Apr 1, 2022 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.095 mg/L, federal limit 0.06 mg/L (1.6 times the limit)
|
220 | Jan 1, 2022 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Jan 1, 2022 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Dec 1, 2021 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.095 mg/L, federal limit 0.06 mg/L (1.6 times the limit)
|
220 | Oct 1, 2021 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Sep 1, 2021 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Aug 1, 2021 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.072 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
|
220 | Jul 1, 2021 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Jul 1, 2021 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Apr 1, 2021 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Jan 1, 2021 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Oct 1, 2020 | Resolved | No |
|
Revised Total Coliform Rule
Treatment technique failure
|
110 | Apr 18, 2019 | Resolved | No |
|
Revised Total Coliform Rule
Treatment technique failure
|
110 | Apr 18, 2019 | Resolved | No |
|
Revised Total Coliform Rule
Treatment technique failure
|
110 | Apr 18, 2019 | Resolved | No |
|
Revised Total Coliform Rule
Treatment technique failure
|
110 | Dec 11, 2018 | Resolved | No |
|
Revised Total Coliform Rule
Contaminant limit exceeded
|
110 | Oct 1, 2018 | Resolved | Yes |
|
Revised Total Coliform Rule
Treatment technique failure
|
110 | Feb 23, 2017 | Resolved | No |
|
Revised Total Coliform Rule
Treatment technique failure
|
110 | Feb 23, 2017 | Resolved | No |
|
Revised Total Coliform Rule
Treatment technique failure
|
110 | Oct 7, 2016 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Revised Total Coliform Rule
Monitoring violation
|
Nov 1, 2025 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Nov 1, 2025 | Resolved |
|
Chlorine
Monitoring and reporting
|
Nov 1, 2025 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Oct 1, 2025 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Oct 1, 2025 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2025 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
May 1, 2025 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
May 1, 2025 | Resolved |
|
Chlorine
Monitoring and reporting
|
May 1, 2025 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Apr 1, 2025 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2025 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Apr 1, 2025 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jan 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Revised Total Coliform Rule
Monitoring violation
|
Jan 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 |
|
Chlorine
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Dec 1, 2024 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Dec 1, 2024 | Resolved |
|
Chlorine
Monitoring and reporting
|
Dec 1, 2024 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Nov 1, 2024 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Nov 1, 2024 | Resolved |
|
Chlorine
Monitoring and reporting
|
Nov 1, 2024 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Sep 1, 2024 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Sep 1, 2024 | Resolved |
|
Chlorine
Monitoring and reporting
|
Sep 1, 2024 | Resolved |
|
Chlorine
Monitoring and reporting
|
Aug 1, 2024 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Aug 1, 2024 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Aug 1, 2024 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jul 1, 2024 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2024 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jul 1, 2024 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jun 1, 2024 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
May 1, 2024 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Mar 1, 2024 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Mar 1, 2024 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Nov 1, 2023 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Nov 1, 2023 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2023 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
May 1, 2023 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Apr 1, 2023 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jan 1, 2023 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Sep 1, 2022 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Aug 1, 2022 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Aug 1, 2022 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jun 1, 2022 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Jun 1, 2022 | Resolved |
|
E. coli
Monitoring and reporting
|
Jun 1, 2022 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
May 1, 2022 | Resolved |
|
E. coli
Monitoring and reporting
|
May 1, 2022 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
May 1, 2022 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
E. coli
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
E. coli
Monitoring and reporting
|
Mar 1, 2022 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Mar 1, 2022 | Resolved |
|
E. coli
Monitoring and reporting
|
Feb 1, 2022 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Feb 1, 2022 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Feb 1, 2022 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Oct 1, 2021 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Sep 1, 2021 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Sep 1, 2021 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2021 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Jun 1, 2021 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jun 1, 2021 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
May 1, 2021 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
May 1, 2021 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2021 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Mar 1, 2021 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Mar 1, 2021 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Feb 1, 2021 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Feb 1, 2021 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Dec 1, 2020 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Dec 1, 2020 | Resolved |
|
E. coli
Monitoring and reporting
|
Dec 1, 2020 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Nov 1, 2020 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Nov 1, 2020 | Resolved |
|
E. coli
Monitoring and reporting
|
Nov 1, 2020 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2020 | Resolved |
|
E. coli
Monitoring and reporting
|
Oct 1, 2020 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Oct 1, 2020 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Oct 1, 2020 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Sep 1, 2020 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Sep 1, 2020 | Resolved |
|
E. coli
Monitoring and reporting
|
Aug 1, 2020 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Aug 1, 2020 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Aug 1, 2020 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2020 | Resolved |
|
E. coli
Monitoring and reporting
|
Jul 1, 2020 | Resolved |
|
E. coli
Monitoring and reporting
|
Jun 1, 2020 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jun 1, 2020 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jun 1, 2020 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
E. coli
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Apr 1, 2020 | Resolved |
|
E. coli
Monitoring and reporting
|
Mar 1, 2020 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Mar 1, 2020 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Mar 1, 2020 | Resolved |
|
E. coli
Monitoring and reporting
|
Feb 1, 2020 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Feb 1, 2020 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Feb 1, 2020 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
E. coli
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
E. coli
Monitoring and reporting
|
Dec 1, 2019 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Dec 1, 2019 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Dec 1, 2019 | Resolved |
|
E. coli
Monitoring and reporting
|
Nov 1, 2019 | Resolved |
|
E. coli
Monitoring and reporting
|
Oct 1, 2019 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Oct 1, 2019 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2019 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Sep 1, 2019 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Sep 1, 2019 | Resolved |
|
E. coli
Monitoring and reporting
|
Sep 1, 2019 | Resolved |
|
E. coli
Monitoring and reporting
|
Aug 1, 2019 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Aug 1, 2019 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Aug 1, 2019 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Aug 1, 2019 | Resolved |
|
E. coli
Monitoring and reporting
|
Jul 1, 2019 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2019 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jul 1, 2019 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jul 1, 2019 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Jul 1, 2019 | Resolved |
|
E. coli
Monitoring and reporting
|
Jun 1, 2019 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jun 1, 2019 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jun 1, 2019 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Jun 1, 2019 | Resolved |
|
E. coli
Monitoring and reporting
|
May 1, 2019 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
May 1, 2019 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
May 1, 2019 | Resolved |
|
E. coli
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Apr 1, 2019 | Resolved |
|
E. coli
Monitoring and reporting
|
Mar 1, 2019 | Resolved |
|
E. coli
Monitoring and reporting
|
Feb 1, 2019 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Feb 1, 2019 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Feb 1, 2019 | Resolved |
|
E. coli
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jan 1, 2019 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Dec 1, 2018 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Dec 1, 2018 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Dec 1, 2018 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Nov 1, 2018 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Nov 1, 2018 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 1, 2018 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2018 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Oct 1, 2018 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Oct 1, 2018 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Sep 1, 2018 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Sep 1, 2018 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Sep 1, 2018 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Aug 1, 2018 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Aug 1, 2018 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Aug 1, 2018 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jul 1, 2018 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2018 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jun 1, 2018 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jun 1, 2018 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Jun 1, 2018 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
May 1, 2018 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
May 1, 2018 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
May 1, 2018 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Apr 1, 2018 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Mar 1, 2018 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Mar 1, 2018 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Mar 1, 2018 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Feb 1, 2018 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Feb 1, 2018 | Resolved |
|
E. coli
Monitoring and reporting
|
Feb 1, 2018 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Feb 1, 2018 | Resolved |
|
Styrene
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Ethylbenzene
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Toluene
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Benzene
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
CHLOROBENZENE
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Tetrachloroethylene
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Trichloroethylene
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
1,2-Dichloropropane
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Carbon tetrachloride
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
1,2-Dichloroethane
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
1,1-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Vinyl chloride
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
p-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
o-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
DICHLOROMETHANE
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Xylenes, Total
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
E. coli
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jan 1, 2018 | Resolved |
|
E. coli
Monitoring and reporting
|
Dec 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Dec 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Nov 1, 2017 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Nov 1, 2017 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Oct 1, 2017 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 1, 2017 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Sep 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Sep 1, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Sep 1, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Aug 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Aug 1, 2017 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Aug 1, 2017 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jul 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jun 1, 2017 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Jun 1, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
May 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
May 1, 2017 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
May 1, 2017 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
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 |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Mar 1, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Mar 1, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Feb 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Feb 1, 2017 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Feb 1, 2017 | Resolved |
|
Styrene
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Ethylbenzene
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Toluene
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Benzene
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
CHLOROBENZENE
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Tetrachloroethylene
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Trichloroethylene
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
1,2-Dichloropropane
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Carbon tetrachloride
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
1,2-Dichloroethane
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
1,1-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Vinyl chloride
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
p-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
o-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
DICHLOROMETHANE
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Xylenes, Total
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jan 1, 2017 | 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 |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Dec 1, 2016 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Dec 1, 2016 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Dec 1, 2016 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Nov 1, 2016 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Nov 1, 2016 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Nov 1, 2016 | Resolved |
|
Chlordane
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
ETHYLENE DIBROMIDE
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
1,2-DIBROMO-3-CHLOROPROPANE
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Total Polychlorinated Biphenyls (PCB)
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Pentachlorophenol
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Benzo(a)pyrene
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
HEXACHLOROBENZENE
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
2,4,5-TP
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
2,4-D
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Heptachlor epoxide
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Heptachlor
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
2,3,7,8-TCDD
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
LASSO
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Atrazine
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Carbofuran
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Hexachlorocyclopentadiene
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Dinoseb
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Picloram
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Di(2-ethylhexyl) phthalate
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Simazine
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
OXAMYL
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Di(2-ethylhexyl) adipate
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Glyphosate
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Endothall
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Diquat
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Dalapon
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Toxaphene
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Methoxychlor
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
BHC-GAMMA
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Endrin
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Sep 1, 2016 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Sep 1, 2016 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2016 | Resolved |
|
Revised Total Coliform Rule
OTHER
|
Apr 1, 2016 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2016 | Resolved |
|
Selenium
Monitoring and reporting
|
Jan 1, 2011 | Resolved |
|
Thallium, Total
Monitoring and reporting
|
Jan 1, 2011 | Resolved |
|
Beryllium, Total
Monitoring and reporting
|
Jan 1, 2011 | Resolved |
|
Antimony, Total
Monitoring and reporting
|
Jan 1, 2011 | Resolved |
|
Nickel
Monitoring and reporting
|
Jan 1, 2011 | Resolved |
|
Mercury
Monitoring and reporting
|
Jan 1, 2011 | Resolved |
|
Fluoride
Monitoring and reporting
|
Jan 1, 2011 | Resolved |
|
CYANIDE
Monitoring and reporting
|
Jan 1, 2011 | Resolved |
|
Chromium (total)
Monitoring and reporting
|
Jan 1, 2011 | Resolved |
|
Cadmium
Monitoring and reporting
|
Jan 1, 2011 | Resolved |
|
Barium
Monitoring and reporting
|
Jan 1, 2011 | Resolved |
|
Gross Alpha, Excl. Radon and U
Monitoring and reporting
|
Jan 1, 2008 | Resolved |
|
Combined Uranium
Monitoring and reporting
|
Jan 1, 2008 | Resolved |
|
Combined Radium (-226 and -228)
Monitoring and reporting
|
Jan 1, 2008 | Resolved |
Full record since 1985
EPA's records for Chenega go back to 1985. Before October 19, 2016 they list 16 health-based violations (7 resolved, 9 archived by EPA without a recorded fix) and 724 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 23 |
| 1990s | 10 | 274 |
| 2000s | 3 | 141 |
| 2010 to October 18, 2016 | 3 | 286 |
| October 19, 2016 to 2019 | 7 | 170 |
| 2020s | 17 | 115 |
Most recent health-based violation before October 19, 2016: Revised Total Coliform Rule, began October 2016, Resolved.
Show all 16 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Revised Total Coliform Rule
Treatment technique failure
|
Oct 7, 2016 | Resolved |
|
Revised Total Coliform Rule (acute)
Contaminant limit exceeded
|
Aug 1, 2016 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Sep 1, 2015 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jan 1, 2009 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Dec 1, 2008 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2005 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Oct 1, 1998 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Sep 1, 1998 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Aug 1, 1998 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jul 1, 1998 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Mar 1, 1998 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Sep 1, 1997 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
May 1, 1996 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Feb 1, 1996 | Archived |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Jul 1, 1995 | Resolved |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Sep 1, 1994 | Archived |
Enforcement actions
Alaska regulators took 2 formal enforcement actions against Chenega and issued 12 boil water orders between 1994 and 2023. The most recent was a boil water order in September 2023.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Sep 18, 2023 | Alaska | Boil water order | 1 violation |
| Oct 6, 2021 | Alaska | Boil water order | 1 violation |
| Aug 13, 2020 | Alaska | Boil water order | 1 violation |
| Sep 13, 2019 | Alaska | Boil water order | 1 violation |
| Nov 2, 2018 | Alaska | Boil water order | 1 violation |
| Jul 13, 2018 | Alaska | Compliance order (no penalty) | 170 violations: OXAMYL, Di(2-ethylhexyl) phthalate, Picloram, Hexachlorocyclopentadiene, Carbofuran |
| May 10, 2018 | Alaska | Compliance order (no penalty) | 206 violations (1 health-based): Consumer Confidence Rule, Picloram, Carbofuran, Atrazine, Heptachlor epoxide |
| Oct 13, 2016 | Alaska | Boil water order | 1 violation |
| Sep 6, 2016 | Alaska | Boil water order | 1 violation |
| Dec 16, 2011 | Alaska | Boil water order | 1 violation |
| May 17, 1996 | Alaska | Boil water order | 2 violations (1 health-based): Surface Water Treatment Rule |
| Sep 20, 1995 | Alaska | Boil water order | 2 violations (1 health-based): Total Coliform |
| Jul 13, 1995 | Alaska | Boil water order | 1 violation (1 health-based): Total Coliform |
| Sep 27, 1994 | Alaska | Boil water order | 2 violations (1 health-based): Total Coliform |
What the violations mean
Surface Water Treatment Rule
13 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.
Revised Total Coliform Rule
8 incidentsThe system did not meet a requirement of the Revised Total Coliform Rule
Coliform and E. coli rules protect against bacteria in the distribution system
Haloacetic Acids (HAA5)
4 incidentsHaloacetic acid byproducts exceeded the federal limit
Long-term exposure to HAAs may increase cancer risk
Where the water comes from
Chenega draws water from 1 surface water intake.
Annual water quality report
Chenega 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 Chenega 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