Public water system record

Diomede Joint Utilities

On record as serving Nome Census Area, AK · Serves 83 people

Federal records show 33 health-based violations and 311 monitoring/reporting issues for Diomede Joint Utilities in the last ten years. The most serious issue in this window was a Arsenic violation that EPA lists as archived, not resolved.

  • AK2340141
  • DIOMIDE
  • AK
  • 83 served

System profile

Source water Surface water
ZIP 99762
EPA system ID AK2340141

Verify this system on EPA ECHO →

Health-based violations, last 10 years
33
Resolved
14
Unresolved
0
Archived by EPA
19
Any acute record
Yes
Monitoring issues, last 10 years
311

Key facts

  • Diomede Joint Utilities draws water from 1 surface water intake.
  • Highest measured level in the last 10 years: Arsenic, 0.047 mg/L, federal limit 0.01 mg/L (4.7 times the limit), 2024.
  • Most recent enforcement action: boil water order by Alaska, September 2012.
  • Record on file since 1979, with 102 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 4 service lines.

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant Rule family Start date Status Acute
Arsenic
Contaminant limit exceeded
Measured 0.043 mg/L, federal limit 0.01 mg/L (4.3 times the limit)
330 Apr 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Nitrate
Contaminant limit exceeded
Measured 13 mg/L, federal limit 10 mg/L (1.3 times the limit)
330 Jan 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Yes
Arsenic
Contaminant limit exceeded
Measured 0.043 mg/L, federal limit 0.01 mg/L (4.3 times the limit)
330 Jan 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Arsenic
Contaminant limit exceeded
Measured 0.046 mg/L, federal limit 0.01 mg/L (4.6 times the limit)
330 Oct 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Arsenic
Contaminant limit exceeded
Measured 0.047 mg/L, federal limit 0.01 mg/L (4.7 times the limit)
330 Jul 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Nitrate
Contaminant limit exceeded
Measured 13 mg/L, federal limit 10 mg/L (1.3 times the limit)
330 Jan 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Yes
Surface Water Treatment Rule
Treatment technique failure
120 Jul 1, 2023 Resolved No
Arsenic
Contaminant limit exceeded
Measured 0.018 mg/L, federal limit 0.01 mg/L (1.8 times the limit)
330 Apr 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Arsenic
Contaminant limit exceeded
Measured 0.026 mg/L, federal limit 0.01 mg/L (2.6 times the limit)
330 Jan 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Arsenic
Contaminant limit exceeded
Measured 0.018 mg/L, federal limit 0.01 mg/L (1.8 times the limit)
330 Oct 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Surface Water Treatment Rule
Treatment technique failure
120 Jul 1, 2021 Resolved No
Arsenic
Contaminant limit exceeded
Measured 0.023 mg/L, federal limit 0.01 mg/L (2.3 times the limit)
330 Jul 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Arsenic
Contaminant limit exceeded
Measured 0.018 mg/L, federal limit 0.01 mg/L (1.8 times the limit)
330 Apr 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Arsenic
Contaminant limit exceeded
Measured 0.018 mg/L, federal limit 0.01 mg/L (1.8 times the limit)
330 Jan 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Nitrate
Contaminant limit exceeded
Measured 15 mg/L, federal limit 10 mg/L (1.5 times the limit)
330 Jan 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Yes
Arsenic
Contaminant limit exceeded
Measured 0.018 mg/L, federal limit 0.01 mg/L (1.8 times the limit)
330 Oct 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Arsenic
Contaminant limit exceeded
Measured 0.018 mg/L, federal limit 0.01 mg/L (1.8 times the limit)
330 Jul 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Arsenic
Contaminant limit exceeded
Measured 0.018 mg/L, federal limit 0.01 mg/L (1.8 times the limit)
330 Apr 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Arsenic
Contaminant limit exceeded
Measured 0.018 mg/L, federal limit 0.01 mg/L (1.8 times the limit)
330 Jan 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Arsenic
Contaminant limit exceeded
Measured 0.018 mg/L, federal limit 0.01 mg/L (1.8 times the limit)
330 Oct 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Arsenic
Contaminant limit exceeded
Measured 0.018 mg/L, federal limit 0.01 mg/L (1.8 times the limit)
330 Jul 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Surface Water Treatment Rule
Treatment technique failure
120 Dec 1, 2018 Resolved No
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
330 Oct 1, 2018 Resolved No
Surface Water Treatment Rule
Treatment technique failure
120 Sep 1, 2018 Resolved No
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
330 Jul 1, 2018 Resolved No
Surface Water Treatment Rule
Treatment technique failure
120 Jul 1, 2018 Resolved No
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
330 Apr 1, 2018 Resolved No
Arsenic
Contaminant limit exceeded
Measured 0.018 mg/L, federal limit 0.01 mg/L (1.8 times the limit)
330 Jan 1, 2018 Resolved No
Arsenic
Contaminant limit exceeded
Measured 0.029 mg/L, federal limit 0.01 mg/L (2.9 times the limit)
330 Apr 1, 2017 Resolved No
Nitrate
Contaminant limit exceeded
Measured 25 mg/L, federal limit 10 mg/L (2.5 times the limit)
330 Jan 1, 2017 Resolved Yes
Arsenic
Contaminant limit exceeded
Measured 0.024 mg/L, federal limit 0.01 mg/L (2.4 times the limit)
330 Jan 1, 2017 Resolved No
Arsenic
Contaminant limit exceeded
Measured 0.023 mg/L, federal limit 0.01 mg/L (2.3 times the limit)
330 Oct 1, 2016 Resolved No
Nitrate
Contaminant limit exceeded
Measured 21 mg/L, federal limit 10 mg/L (2.1 times the limit)
330 Jan 1, 2016 Resolved Yes

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Revised Total Coliform Rule
Monitoring violation
Dec 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Chlorine
Monitoring and reporting
Dec 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Surface Water Treatment Rule
Monitoring and reporting
Dec 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Dec 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Surface Water Treatment Rule
Monitoring and reporting
Nov 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Nov 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Chlorine
Monitoring and reporting
Oct 1, 2025 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Oct 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Surface Water Treatment Rule
Monitoring and reporting
Oct 1, 2025 Resolved
Consumer Confidence Rule
OTHER
Oct 1, 2025 Active
Surface Water Treatment Rule
Monitoring and reporting
Sep 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Sep 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
Sep 1, 2025 Resolved
Chlorine
Monitoring and reporting
Sep 1, 2025 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Aug 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
Aug 1, 2025 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Aug 1, 2025 Resolved
Chlorine
Monitoring and reporting
Aug 1, 2025 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jul 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Haloacetic Acids (HAA5)
Monitoring and reporting
Jul 1, 2025 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Jul 1, 2025 Resolved
Revised Total Coliform Rule
Monitoring violation
Jul 1, 2025 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Jul 1, 2025 Resolved
Chlorine
Monitoring and reporting
Jul 1, 2025 Resolved
Lead and Copper Rule
Monitoring and reporting
Jul 1, 2025 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Jun 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jun 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Lead and Copper Rule
Monitoring and reporting
May 19, 2025 Active
Surface Water Treatment Rule
Monitoring and reporting
May 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
May 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Chlorine
Monitoring and reporting
May 1, 2025 Resolved
Arsenic
Monitoring and reporting
Apr 1, 2025 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Apr 1, 2025 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Apr 1, 2025 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Apr 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Apr 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Surface Water Treatment Rule
Monitoring and reporting
Mar 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Mar 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Surface Water Treatment Rule
Monitoring and reporting
Feb 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Feb 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Chlorine
Monitoring and reporting
Feb 1, 2025 Resolved
Interim Enhanced Surface Water Treatment Rule
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
Chlorine
Monitoring and reporting
Jan 1, 2025 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Dec 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Dec 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Surface Water Treatment Rule
Monitoring and reporting
Nov 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Nov 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Oct 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Surface Water Treatment Rule
Monitoring and reporting
Oct 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Revised Total Coliform Rule
Monitoring violation
Oct 1, 2024 Resolved
Chlorine
Monitoring and reporting
Oct 1, 2024 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Sep 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Revised Total Coliform Rule
Monitoring violation
Sep 1, 2024 Resolved
Chlorine
Monitoring and reporting
Sep 1, 2024 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Sep 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Chlorine
Monitoring and reporting
Aug 1, 2024 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Aug 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Aug 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Surface Water Treatment Rule
Monitoring and reporting
Jul 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jul 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Revised Total Coliform Rule
Monitoring violation
Jul 1, 2024 Resolved
Chlorine
Monitoring and reporting
Jul 1, 2024 Resolved
Lead and Copper Rule
Monitoring and reporting
Jul 1, 2024 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jun 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Revised Total Coliform Rule
Monitoring violation
Jun 1, 2024 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Jun 1, 2024 Resolved
Chlorine
Monitoring and reporting
Jun 1, 2024 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
May 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Revised Total Coliform Rule
Monitoring violation
May 1, 2024 Resolved
Surface Water Treatment Rule
Monitoring and reporting
May 1, 2024 Resolved
Chlorine
Monitoring and reporting
May 1, 2024 Resolved
Arsenic
Monitoring and reporting
Apr 1, 2024 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Apr 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Surface Water Treatment Rule
Monitoring and reporting
Apr 1, 2024 Resolved
Chlorine
Monitoring and reporting
Apr 1, 2024 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Mar 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Mar 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Feb 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Revised Total Coliform Rule
Monitoring violation
Feb 1, 2024 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Feb 1, 2024 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Jan 1, 2024 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Jan 1, 2024 Resolved
Arsenic
Monitoring and reporting
Jan 1, 2024 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jan 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Chlorine
Monitoring and reporting
Jan 1, 2024 Resolved
Revised Total Coliform Rule
Monitoring violation
Jan 1, 2024 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Jan 1, 2024 Resolved
Lead and Copper Rule
Monitoring and reporting
Jan 1, 2024 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Dec 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Dec 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Surface Water Treatment Rule
Monitoring and reporting
Nov 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Nov 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Arsenic
Monitoring and reporting
Oct 1, 2023 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Oct 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Surface Water Treatment Rule
Monitoring and reporting
Sep 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Sep 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Surface Water Treatment Rule
Monitoring and reporting
Aug 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Aug 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Arsenic
Monitoring and reporting
Jul 1, 2023 Resolved
Revised Total Coliform Rule
Monitoring violation
Jul 1, 2023 Resolved
Chlorine
Monitoring and reporting
Jul 1, 2023 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Jul 1, 2023 Resolved
Lead and Copper Rule
Monitoring and reporting
Jul 1, 2023 Resolved
Surface Water Treatment Rule
Monitoring and reporting
May 1, 2023 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
May 1, 2023 Resolved
Arsenic
Monitoring and reporting
Apr 1, 2023 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Apr 1, 2023 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Apr 1, 2023 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Mar 1, 2023 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Mar 1, 2023 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Feb 1, 2023 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Feb 1, 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
Nitrate
Monitoring and reporting
Jan 1, 2023 Resolved
Public Notice
OTHER
Jan 1, 2023 Resolved
Arsenic
Monitoring and reporting
Jan 1, 2023 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Dec 1, 2022 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Dec 1, 2022 Resolved
Arsenic
Monitoring and reporting
Oct 1, 2022 Resolved
Arsenic
Monitoring and reporting
Jul 1, 2022 Resolved
Surface Water Treatment Rule
Monitoring and reporting
May 1, 2022 Resolved
Arsenic
Monitoring and reporting
Apr 1, 2022 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Apr 1, 2022 Resolved
Surface Water Treatment Rule
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
Styrene
Monitoring and reporting
Jan 1, 2022 Resolved
Ethylbenzene
Monitoring and reporting
Jan 1, 2022 Resolved
Toluene
Monitoring and reporting
Jan 1, 2022 Resolved
Benzene
Monitoring and reporting
Jan 1, 2022 Resolved
CHLOROBENZENE
Monitoring and reporting
Jan 1, 2022 Resolved
Tetrachloroethylene
Monitoring and reporting
Jan 1, 2022 Resolved
1,1,2-Trichloroethane
Monitoring and reporting
Jan 1, 2022 Resolved
Trichloroethylene
Monitoring and reporting
Jan 1, 2022 Resolved
1,2-Dichloropropane
Monitoring and reporting
Jan 1, 2022 Resolved
Carbon tetrachloride
Monitoring and reporting
Jan 1, 2022 Resolved
1,1,1-Trichloroethane
Monitoring and reporting
Jan 1, 2022 Resolved
1,2-Dichloroethane
Monitoring and reporting
Jan 1, 2022 Resolved
trans-1,2-Dichloroethylene
Monitoring and reporting
Jan 1, 2022 Resolved
1,1-Dichloroethylene
Monitoring and reporting
Jan 1, 2022 Resolved
Vinyl chloride
Monitoring and reporting
Jan 1, 2022 Resolved
p-Dichlorobenzene
Monitoring and reporting
Jan 1, 2022 Resolved
o-Dichlorobenzene
Monitoring and reporting
Jan 1, 2022 Resolved
DICHLOROMETHANE
Monitoring and reporting
Jan 1, 2022 Resolved
Xylenes, Total
Monitoring and reporting
Jan 1, 2022 Resolved
cis-1,2-Dichloroethylene
Monitoring and reporting
Jan 1, 2022 Resolved
1,2,4-Trichlorobenzene
Monitoring and reporting
Jan 1, 2022 Resolved
Chlorine
Monitoring and reporting
Jan 1, 2022 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Nov 1, 2021 Resolved
Arsenic
Monitoring and reporting
Oct 1, 2021 Resolved
Surface Water Treatment Rule
Monitoring and reporting
May 1, 2021 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
May 1, 2021 Resolved
Arsenic
Monitoring and reporting
Apr 1, 2021 Resolved
Arsenic
Monitoring and reporting
Jan 1, 2021 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Dec 1, 2020 Resolved
Revised Total Coliform Rule
Monitoring violation
Dec 1, 2020 Resolved
Revised Total Coliform Rule
Monitoring violation
Nov 1, 2020 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Nov 1, 2020 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Nov 1, 2020 Resolved
Arsenic
Monitoring and reporting
Oct 1, 2020 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Oct 1, 2020 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Oct 1, 2020 Resolved
Chlorine
Monitoring and reporting
Oct 1, 2020 Resolved
Revised Total Coliform Rule
Monitoring violation
Oct 1, 2020 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Sep 1, 2020 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Sep 1, 2020 Resolved
Revised Total Coliform Rule
Monitoring violation
Sep 1, 2020 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Aug 1, 2020 Resolved
Revised Total Coliform Rule
Monitoring violation
Aug 1, 2020 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Aug 1, 2020 Resolved
Arsenic
Monitoring and reporting
Jul 1, 2020 Resolved
Chlorine
Monitoring and reporting
Jul 1, 2020 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jul 1, 2020 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Jul 1, 2020 Resolved
Revised Total Coliform Rule
Monitoring violation
Jul 1, 2020 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Jun 1, 2020 Resolved
Revised Total Coliform Rule
Monitoring violation
Jun 1, 2020 Resolved
Surface Water Treatment Rule
Monitoring and reporting
May 1, 2020 Resolved
Revised Total Coliform Rule
Monitoring violation
May 1, 2020 Resolved
Arsenic
Monitoring and reporting
Apr 1, 2020 Resolved
Chlorine
Monitoring and reporting
Apr 1, 2020 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Apr 1, 2020 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Apr 1, 2020 Resolved
Revised Total Coliform Rule
Monitoring violation
Apr 1, 2020 Resolved
Revised Total Coliform Rule
Monitoring violation
Mar 1, 2020 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Mar 1, 2020 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Feb 1, 2020 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Feb 1, 2020 Resolved
Revised Total Coliform Rule
Monitoring violation
Feb 1, 2020 Resolved
Nitrate
Monitoring and reporting
Jan 1, 2020 Resolved
Styrene
Monitoring and reporting
Jan 1, 2020 Resolved
Ethylbenzene
Monitoring and reporting
Jan 1, 2020 Resolved
Toluene
Monitoring and reporting
Jan 1, 2020 Resolved
Benzene
Monitoring and reporting
Jan 1, 2020 Resolved
CHLOROBENZENE
Monitoring and reporting
Jan 1, 2020 Resolved
Tetrachloroethylene
Monitoring and reporting
Jan 1, 2020 Resolved
1,1,2-Trichloroethane
Monitoring and reporting
Jan 1, 2020 Resolved
Trichloroethylene
Monitoring and reporting
Jan 1, 2020 Resolved
1,2-Dichloropropane
Monitoring and reporting
Jan 1, 2020 Resolved
Carbon tetrachloride
Monitoring and reporting
Jan 1, 2020 Resolved
1,1,1-Trichloroethane
Monitoring and reporting
Jan 1, 2020 Resolved
1,2-Dichloroethane
Monitoring and reporting
Jan 1, 2020 Resolved
trans-1,2-Dichloroethylene
Monitoring and reporting
Jan 1, 2020 Resolved
1,1-Dichloroethylene
Monitoring and reporting
Jan 1, 2020 Resolved
Vinyl chloride
Monitoring and reporting
Jan 1, 2020 Resolved
p-Dichlorobenzene
Monitoring and reporting
Jan 1, 2020 Resolved
o-Dichlorobenzene
Monitoring and reporting
Jan 1, 2020 Resolved
DICHLOROMETHANE
Monitoring and reporting
Jan 1, 2020 Resolved
Xylenes, Total
Monitoring and reporting
Jan 1, 2020 Resolved
cis-1,2-Dichloroethylene
Monitoring and reporting
Jan 1, 2020 Resolved
1,2,4-Trichlorobenzene
Monitoring and reporting
Jan 1, 2020 Resolved
Chlorine
Monitoring and reporting
Jan 1, 2020 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Jan 1, 2020 Resolved
Arsenic
Monitoring and reporting
Jan 1, 2020 Resolved
Revised Total Coliform Rule
Monitoring violation
Jan 1, 2020 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Dec 1, 2019 Resolved
Revised Total Coliform Rule
Monitoring violation
Dec 1, 2019 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Nov 1, 2019 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Nov 1, 2019 Resolved
Revised Total Coliform Rule
Monitoring violation
Nov 1, 2019 Resolved
Chlorine
Monitoring and reporting
Oct 1, 2019 Resolved
Consumer Confidence Rule
OTHER
Oct 1, 2019 Resolved
Arsenic
Monitoring and reporting
Oct 1, 2019 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Oct 1, 2019 Resolved
Revised Total Coliform Rule
Monitoring violation
Oct 1, 2019 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Sep 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Revised Total Coliform Rule
Monitoring violation
Sep 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
Revised Total Coliform Rule
Monitoring violation
Aug 1, 2019 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2019 Resolved
Chlorine
Monitoring and reporting
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
Surface Water Treatment Rule
Monitoring and reporting
Jun 1, 2019 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jun 1, 2019 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
May 1, 2019 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
May 1, 2019 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
May 1, 2019 Resolved
Surface Water Treatment Rule
Monitoring and reporting
May 1, 2019 Resolved
Revised Total Coliform Rule
Monitoring violation
May 1, 2019 Resolved
Chlorine
Monitoring and reporting
Apr 1, 2019 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Apr 1, 2019 Resolved
Arsenic
Monitoring and reporting
Jan 1, 2019 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Jan 1, 2019 Resolved
Revised Total Coliform Rule
Monitoring violation
Jan 1, 2019 Resolved
Arsenic
Monitoring and reporting
Oct 1, 2018 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Sep 1, 2018 Resolved
Arsenic
Monitoring and reporting
Jul 1, 2018 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Jul 1, 2018 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
May 1, 2018 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
May 1, 2018 Resolved
Surface Water Treatment Rule
Monitoring and reporting
May 1, 2018 Resolved
Revised Total Coliform Rule
Monitoring violation
May 1, 2018 Resolved
Chlorine
Monitoring and reporting
Apr 1, 2018 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Mar 1, 2018 Resolved
Revised Total Coliform Rule
Monitoring violation
Mar 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
Chlorine
Monitoring and reporting
Jan 1, 2018 Resolved
Lead and Copper Rule
Monitoring and reporting
Jan 1, 2018 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Dec 1, 2017 Resolved
Revised Total Coliform Rule
Monitoring violation
Dec 1, 2017 Resolved
Arsenic
Monitoring and reporting
Oct 1, 2017 Resolved
Chlorine
Monitoring and reporting
Oct 1, 2017 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2017 Resolved
Arsenic
Monitoring and reporting
Jul 1, 2017 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
May 1, 2017 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
May 1, 2017 Resolved

Full record since 1979

EPA's records for Diomede Joint Utilities go back to 1979. Before October 19, 2016 they list 102 health-based violations (70 resolved, 32 archived by EPA without a recorded fix) and 1,130 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1970s 0 15
1980s 0 26
1990s 26 295
2000s 36 551
2010 to October 18, 2016 40 243
October 19, 2016 to 2019 12 74
2020s 19 237

Most recent health-based violation before October 19, 2016: Arsenic, began October 2016, Resolved.

Show all 102 health-based violations before October 19, 2016
Contaminant Start date Status
Arsenic
Contaminant limit exceeded
Measured 0.023 mg/L, federal limit 0.01 mg/L (2.3 times the limit)
Oct 1, 2016 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.018 mg/L, federal limit 0.01 mg/L (1.8 times the limit)
Jul 1, 2016 Resolved
Nitrate (acute)
Contaminant limit exceeded
Measured 21 mg/L, federal limit 10 mg/L (2.1 times the limit)
Jan 1, 2016 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.016 mg/L, federal limit 0.01 mg/L (1.6 times the limit)
Oct 1, 2015 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.016 mg/L, federal limit 0.01 mg/L (1.6 times the limit)
Jan 1, 2015 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.016 mg/L, federal limit 0.01 mg/L (1.6 times the limit)
Oct 1, 2014 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.03 mg/L, federal limit 0.01 mg/L (3 times the limit)
Apr 1, 2014 Resolved
Nitrate (acute)
Contaminant limit exceeded
Measured 16 mg/L, federal limit 10 mg/L (1.6 times the limit)
Jan 1, 2014 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.05 mg/L, federal limit 0.01 mg/L (5 times the limit)
Jan 1, 2014 Resolved
Surface Water Treatment Rule
Treatment technique failure
Dec 1, 2013 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.054 mg/L, federal limit 0.01 mg/L (5.4 times the limit)
Oct 1, 2013 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.057 mg/L, federal limit 0.01 mg/L (5.7 times the limit)
Jul 1, 2013 Resolved
Surface Water Treatment Rule
Treatment technique failure
Jun 1, 2013 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.04 mg/L, federal limit 0.01 mg/L (4 times the limit)
Apr 1, 2013 Resolved
Surface Water Treatment Rule
Treatment technique failure
Feb 1, 2013 Resolved
Nitrate (acute)
Contaminant limit exceeded
Measured 13 mg/L, federal limit 10 mg/L (1.3 times the limit)
Jan 1, 2013 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.049 mg/L, federal limit 0.01 mg/L (4.9 times the limit)
Jan 1, 2013 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.05 mg/L, federal limit 0.01 mg/L (5 times the limit)
Oct 1, 2012 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.057 mg/L, federal limit 0.01 mg/L (5.7 times the limit)
Jul 1, 2012 Resolved
Surface Water Treatment Rule
Treatment technique failure
Jul 1, 2012 Resolved
Surface Water Treatment Rule
Treatment technique failure
May 1, 2012 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.049 mg/L, federal limit 0.01 mg/L (4.9 times the limit)
Apr 1, 2012 Resolved
Surface Water Treatment Rule
Treatment technique failure
Apr 1, 2012 Resolved
Surface Water Treatment Rule
Treatment technique failure
Mar 1, 2012 Resolved
Surface Water Treatment Rule
Treatment technique failure
Feb 1, 2012 Resolved
Nitrate (acute)
Contaminant limit exceeded
Measured 11 mg/L, federal limit 10 mg/L (1.1 times the limit)
Jan 1, 2012 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.038 mg/L, federal limit 0.01 mg/L (3.8 times the limit)
Jan 1, 2012 Resolved
Surface Water Treatment Rule
Treatment technique failure
Nov 1, 2011 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.038 mg/L, federal limit 0.01 mg/L (3.8 times the limit)
Oct 1, 2011 Resolved
Surface Water Treatment Rule
Treatment technique failure
Aug 1, 2011 Resolved
Surface Water Treatment Rule
Treatment technique failure
Jul 1, 2011 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.02 mg/L, federal limit 0.01 mg/L (2 times the limit)
Apr 1, 2011 Archived
Nitrate (acute)
Contaminant limit exceeded
Measured 12 mg/L, federal limit 10 mg/L (1.2 times the limit)
Jan 1, 2011 Resolved
Surface Water Treatment Rule
Treatment technique failure
Nov 1, 2010 Resolved
Arsenic
Contaminant limit exceeded
Measured 19 µg/L, federal limit 10 µg/L (1.9 times the limit)
Oct 1, 2010 Archived
Surface Water Treatment Rule
Treatment technique failure
Sep 1, 2010 Resolved
Surface Water Treatment Rule
Treatment technique failure
Aug 1, 2010 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.017 mg/L, federal limit 0.01 mg/L (1.7 times the limit)
Jul 1, 2010 Archived
Surface Water Treatment Rule
Treatment technique failure
Jun 1, 2010 Resolved
Nitrate (acute)
Contaminant limit exceeded
Measured 15 mg/L, federal limit 10 mg/L (1.5 times the limit)
Jan 1, 2010 Resolved
Surface Water Treatment Rule
Treatment technique failure
Oct 1, 2009 Resolved
Surface Water Treatment Rule
Treatment technique failure
Jun 1, 2009 Resolved
Surface Water Treatment Rule
Treatment technique failure
May 1, 2009 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.02 mg/L, federal limit 0.01 mg/L (2 times the limit)
Apr 1, 2009 Resolved
Nitrate (acute)
Contaminant limit exceeded
Measured 14 mg/L, federal limit 10 mg/L (1.4 times the limit)
Jan 1, 2009 Archived
Nitrate (acute)
Contaminant limit exceeded
Measured 12 mg/L, federal limit 10 mg/L (1.2 times the limit)
Jan 1, 2009 Archived
Arsenic
Contaminant limit exceeded
Measured 0.03 mg/L, federal limit 0.01 mg/L (3 times the limit)
Oct 1, 2008 Resolved
Surface Water Treatment Rule
Treatment technique failure
Oct 1, 2008 Resolved
Surface Water Treatment Rule
Treatment technique failure
Sep 1, 2008 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.032 mg/L, federal limit 0.01 mg/L (3.2 times the limit)
Jul 1, 2008 Resolved

52 older violations are not listed here. EPA ECHO has the complete list.

Enforcement actions

Alaska regulators took 4 formal enforcement actions against Diomede Joint Utilities and issued 3 boil water orders between 2001 and 2012. The most recent was a boil water order in September 2012.

Date By Action Violations covered
Sep 16, 2012 Alaska Boil water order 1 violation
Sep 14, 2012 Alaska Boil water order 1 violation
Jun 30, 2010 Alaska Compliance order (no penalty) 40 violations (4 health-based): Interim Enhanced Surface Water Treatment Rule, Total Coliform, Total Coliform Rule, Surface Water Treatment Rule, Chlorine
Aug 8, 2008 Alaska Boil water order 1 violation
Feb 14, 2007 Alaska Compliance order (no penalty) 27 violations (9 health-based): Surface Water Treatment Rule, Chlorine, Total Coliform
Nov 14, 2005 Alaska Signed compliance agreement 168 violations: Toxaphene, Dalapon, Endothall, Glyphosate, Simazine
Aug 14, 2001 Alaska Signed compliance agreement 3 violations: Lead and Copper Rule, Total Coliform

What the violations mean

Arsenic

23 incidents

Arsenic exceeded the federal limit

Long-term arsenic exposure is linked to cancer and cardiovascular effects

Nitrate

5 incidents

Nitrate exceeded the federal limit

High nitrate is especially dangerous for infants under 6 months and can cause blue baby syndrome

Surface Water Treatment Rule

5 incidents

The 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

Diomede Joint Utilities draws water from 1 surface water intake.

Annual water quality report

Diomede Joint Utilities 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 Diomede Joint Utilities 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.