Public water system record

Nondalton

Serves Nondalton, Lake and Peninsula Borough, AK · 205 people served

Federal records show 23 health-based violations and 411 monitoring/reporting issues for Nondalton in the last ten years. The most serious issue in this window was a Surface Water Treatment Rule violation that EPA lists as archived, not resolved.

  • AK2260260
  • NONDALTON
  • AK
  • 205 served

System profile

Source water Surface water
ZIP 99640
EPA system ID AK2260260

Verify this system on EPA ECHO →

Health-based violations, last 10 years
23
Resolved
22
Unresolved
0
Archived by EPA
1
Any acute record
Yes
Monitoring issues, last 10 years
411

Key facts

  • Nondalton draws water from 2 wells and 2 infiltration galleries.
  • Most recent enforcement action: boil water order by Alaska, September 2025.
  • Record on file since 1979, with 34 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 71 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
Surface Water Treatment Rule
Treatment technique failure
120 Sep 1, 2025 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 Jun 1, 2025 Resolved No
Surface Water Treatment Rule
Treatment technique failure
120 Apr 1, 2025 Resolved No
Surface Water Treatment Rule
Treatment technique failure
120 Dec 1, 2024 Resolved No
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Dec 1, 2024 Resolved Yes
Surface Water Treatment Rule
Treatment technique failure
120 Sep 1, 2024 Resolved No
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Jul 1, 2024 Resolved Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Jul 1, 2024 Resolved Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Jul 1, 2020 Resolved Yes
Surface Water Treatment Rule
Treatment technique failure
120 Aug 1, 2019 Resolved No
Surface Water Treatment Rule
Treatment technique failure
120 Jul 1, 2019 Resolved No
Surface Water Treatment Rule
Treatment technique failure
120 Oct 1, 2018 Resolved No
Surface Water Treatment Rule
Treatment technique failure
120 Apr 1, 2018 Resolved No
Surface Water Treatment Rule
Treatment technique failure
120 Oct 1, 2017 Resolved No
Surface Water Treatment Rule
Treatment technique failure
120 Sep 1, 2017 Resolved No
Surface Water Treatment Rule
Treatment technique failure
120 Aug 1, 2017 Resolved No
Surface Water Treatment Rule
Treatment technique failure
120 Jun 1, 2017 Resolved No
Surface Water Treatment Rule
Treatment technique failure
120 Apr 1, 2017 Resolved No
Surface Water Treatment Rule
Treatment technique failure
120 Mar 1, 2017 Resolved No
Surface Water Treatment Rule
Treatment technique failure
120 Nov 1, 2016 Resolved No
Surface Water Treatment Rule
Treatment technique failure
120 Oct 1, 2016 Resolved No
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Oct 1, 2016 Resolved Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Oct 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
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
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
Nov 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Consumer Confidence Rule
OTHER
Oct 1, 2025 Active
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.
Chlorine
Monitoring and reporting
Oct 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
Oct 1, 2025 Resolved
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 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Chlorine
Monitoring and reporting
Jul 1, 2025 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Jul 1, 2025 Resolved
Revised Total Coliform Rule
Monitoring violation
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 Resolved
Chlorine
Monitoring and reporting
Jun 1, 2025 Resolved
Chlorine
Monitoring and reporting
May 1, 2025 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
May 1, 2025 Resolved
Surface Water Treatment Rule
Monitoring and reporting
May 1, 2025 Resolved
Revised Total Coliform Rule
Monitoring violation
May 1, 2025 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Mar 1, 2025 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Mar 1, 2025 Resolved
Styrene
Monitoring and reporting
Jan 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Ethylbenzene
Monitoring and reporting
Jan 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Toluene
Monitoring and reporting
Jan 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Benzene
Monitoring and reporting
Jan 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
CHLOROBENZENE
Monitoring and reporting
Jan 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Tetrachloroethylene
Monitoring and reporting
Jan 1, 2025 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, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Trichloroethylene
Monitoring and reporting
Jan 1, 2025 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, 2025 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, 2025 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, 2025 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, 2025 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, 2025 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, 2025 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, 2025 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, 2025 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, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
DICHLOROMETHANE
Monitoring and reporting
Jan 1, 2025 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, 2025 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, 2025 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, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Chlorine
Monitoring and reporting
Jan 1, 2025 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Jan 1, 2025 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
Dec 1, 2024 Resolved
Chlorine
Monitoring and reporting
Sep 1, 2024 Resolved
Revised Total Coliform Rule
Monitoring violation
Sep 1, 2024 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Aug 1, 2024 Resolved
Chlorine
Monitoring and reporting
Jul 1, 2024 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Jul 1, 2024 Resolved
Revised Total Coliform Rule
Monitoring violation
Jul 1, 2024 Resolved
Lead and Copper Rule
Monitoring and reporting
Jul 1, 2024 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Jun 1, 2024 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jun 1, 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
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Apr 1, 2024 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Apr 1, 2024 Resolved
Chlorine
Monitoring and reporting
Jan 1, 2024 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Jan 1, 2024 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jan 1, 2024 Resolved
Lead and Copper Rule
Monitoring and reporting
Jan 1, 2024 Resolved
Revised Total Coliform Rule
Monitoring violation
Dec 1, 2023 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Dec 1, 2023 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Dec 1, 2023 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Nov 1, 2023 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Nov 1, 2023 Resolved
Revised Total Coliform Rule
Monitoring violation
Nov 1, 2023 Resolved
Chlorine
Monitoring and reporting
Oct 1, 2023 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Oct 1, 2023 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Oct 1, 2023 Resolved
Consumer Confidence Rule
OTHER
Oct 1, 2023 Resolved
Revised Total Coliform Rule
Monitoring violation
Sep 1, 2023 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Aug 1, 2023 Resolved
Revised Total Coliform Rule
Monitoring violation
Jul 1, 2023 Resolved
Lead and Copper Rule
Monitoring and reporting
Jul 1, 2023 Resolved
Revised Total Coliform Rule
Monitoring violation
May 1, 2023 Resolved
Chlorine
Monitoring and reporting
Apr 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
Arsenic
Monitoring and reporting
Jan 1, 2023 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Jan 1, 2023 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Jan 1, 2023 Resolved
Nitrate
Monitoring and reporting
Jan 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
Surface Water Treatment Rule
Monitoring and reporting
Dec 1, 2022 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Dec 1, 2022 Resolved
Revised Total Coliform Rule
Monitoring violation
Nov 1, 2022 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Nov 1, 2022 Resolved
Chlordane
Monitoring and reporting
Oct 1, 2022 Resolved
ETHYLENE DIBROMIDE
Monitoring and reporting
Oct 1, 2022 Resolved
1,2-DIBROMO-3-CHLOROPROPANE
Monitoring and reporting
Oct 1, 2022 Resolved
Total Polychlorinated Biphenyls (PCB)
Monitoring and reporting
Oct 1, 2022 Resolved
Pentachlorophenol
Monitoring and reporting
Oct 1, 2022 Resolved
Benzo(a)pyrene
Monitoring and reporting
Oct 1, 2022 Resolved
HEXACHLOROBENZENE
Monitoring and reporting
Oct 1, 2022 Resolved
2,4,5-TP
Monitoring and reporting
Oct 1, 2022 Resolved
2,4-D
Monitoring and reporting
Oct 1, 2022 Resolved
Heptachlor epoxide
Monitoring and reporting
Oct 1, 2022 Resolved
Heptachlor
Monitoring and reporting
Oct 1, 2022 Resolved
2,3,7,8-TCDD
Monitoring and reporting
Oct 1, 2022 Resolved
LASSO
Monitoring and reporting
Oct 1, 2022 Resolved
Atrazine
Monitoring and reporting
Oct 1, 2022 Resolved
Carbofuran
Monitoring and reporting
Oct 1, 2022 Resolved
Hexachlorocyclopentadiene
Monitoring and reporting
Oct 1, 2022 Resolved
Dinoseb
Monitoring and reporting
Oct 1, 2022 Resolved
Picloram
Monitoring and reporting
Oct 1, 2022 Resolved
Di(2-ethylhexyl) phthalate
Monitoring and reporting
Oct 1, 2022 Resolved
Simazine
Monitoring and reporting
Oct 1, 2022 Resolved
OXAMYL
Monitoring and reporting
Oct 1, 2022 Resolved
Di(2-ethylhexyl) adipate
Monitoring and reporting
Oct 1, 2022 Resolved
Glyphosate
Monitoring and reporting
Oct 1, 2022 Resolved
Endothall
Monitoring and reporting
Oct 1, 2022 Resolved
Diquat
Monitoring and reporting
Oct 1, 2022 Resolved
Dalapon
Monitoring and reporting
Oct 1, 2022 Resolved
Toxaphene
Monitoring and reporting
Oct 1, 2022 Resolved
Methoxychlor
Monitoring and reporting
Oct 1, 2022 Resolved
BHC-GAMMA
Monitoring and reporting
Oct 1, 2022 Resolved
Endrin
Monitoring and reporting
Oct 1, 2022 Resolved
Consumer Confidence Rule
OTHER
Oct 1, 2022 Resolved
Revised Total Coliform Rule
Monitoring violation
Oct 1, 2022 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Sep 1, 2022 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Sep 1, 2022 Resolved
Revised Total Coliform Rule
Monitoring violation
Aug 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
Consumer Confidence Rule
OTHER
Jul 1, 2022 Resolved
Chlordane
Monitoring and reporting
Jul 1, 2022 Resolved
ETHYLENE DIBROMIDE
Monitoring and reporting
Jul 1, 2022 Resolved
1,2-DIBROMO-3-CHLOROPROPANE
Monitoring and reporting
Jul 1, 2022 Resolved
Total Polychlorinated Biphenyls (PCB)
Monitoring and reporting
Jul 1, 2022 Resolved
Pentachlorophenol
Monitoring and reporting
Jul 1, 2022 Resolved
Benzo(a)pyrene
Monitoring and reporting
Jul 1, 2022 Resolved
HEXACHLOROBENZENE
Monitoring and reporting
Jul 1, 2022 Resolved
2,4,5-TP
Monitoring and reporting
Jul 1, 2022 Resolved
2,4-D
Monitoring and reporting
Jul 1, 2022 Resolved
Heptachlor epoxide
Monitoring and reporting
Jul 1, 2022 Resolved
Heptachlor
Monitoring and reporting
Jul 1, 2022 Resolved
2,3,7,8-TCDD
Monitoring and reporting
Jul 1, 2022 Resolved
LASSO
Monitoring and reporting
Jul 1, 2022 Resolved
Atrazine
Monitoring and reporting
Jul 1, 2022 Resolved
Carbofuran
Monitoring and reporting
Jul 1, 2022 Resolved
Hexachlorocyclopentadiene
Monitoring and reporting
Jul 1, 2022 Resolved
Dinoseb
Monitoring and reporting
Jul 1, 2022 Resolved
Picloram
Monitoring and reporting
Jul 1, 2022 Resolved
Di(2-ethylhexyl) phthalate
Monitoring and reporting
Jul 1, 2022 Resolved
Simazine
Monitoring and reporting
Jul 1, 2022 Resolved
OXAMYL
Monitoring and reporting
Jul 1, 2022 Resolved
Di(2-ethylhexyl) adipate
Monitoring and reporting
Jul 1, 2022 Resolved
Glyphosate
Monitoring and reporting
Jul 1, 2022 Resolved
Endothall
Monitoring and reporting
Jul 1, 2022 Resolved
Diquat
Monitoring and reporting
Jul 1, 2022 Resolved
Dalapon
Monitoring and reporting
Jul 1, 2022 Resolved
Toxaphene
Monitoring and reporting
Jul 1, 2022 Resolved
Methoxychlor
Monitoring and reporting
Jul 1, 2022 Resolved
BHC-GAMMA
Monitoring and reporting
Jul 1, 2022 Resolved
Endrin
Monitoring and reporting
Jul 1, 2022 Resolved
Revised Total Coliform Rule
Monitoring violation
Jul 1, 2022 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Jul 1, 2022 Resolved
Interim Enhanced 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
Revised Total Coliform Rule
Monitoring violation
May 1, 2022 Resolved
Surface Water Treatment Rule
Monitoring and reporting
May 1, 2022 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
May 1, 2022 Resolved
Chlorine
Monitoring and reporting
Apr 1, 2022 Resolved
Chlordane
Monitoring and reporting
Apr 1, 2022 Resolved
ETHYLENE DIBROMIDE
Monitoring and reporting
Apr 1, 2022 Resolved
1,2-DIBROMO-3-CHLOROPROPANE
Monitoring and reporting
Apr 1, 2022 Resolved
Total Polychlorinated Biphenyls (PCB)
Monitoring and reporting
Apr 1, 2022 Resolved
Pentachlorophenol
Monitoring and reporting
Apr 1, 2022 Resolved
Benzo(a)pyrene
Monitoring and reporting
Apr 1, 2022 Resolved
HEXACHLOROBENZENE
Monitoring and reporting
Apr 1, 2022 Resolved
2,4,5-TP
Monitoring and reporting
Apr 1, 2022 Resolved
2,4-D
Monitoring and reporting
Apr 1, 2022 Resolved
Heptachlor epoxide
Monitoring and reporting
Apr 1, 2022 Resolved
Heptachlor
Monitoring and reporting
Apr 1, 2022 Resolved
2,3,7,8-TCDD
Monitoring and reporting
Apr 1, 2022 Resolved
LASSO
Monitoring and reporting
Apr 1, 2022 Resolved
Atrazine
Monitoring and reporting
Apr 1, 2022 Resolved
Carbofuran
Monitoring and reporting
Apr 1, 2022 Resolved
Hexachlorocyclopentadiene
Monitoring and reporting
Apr 1, 2022 Resolved
Dinoseb
Monitoring and reporting
Apr 1, 2022 Resolved
Picloram
Monitoring and reporting
Apr 1, 2022 Resolved
Di(2-ethylhexyl) phthalate
Monitoring and reporting
Apr 1, 2022 Resolved
Simazine
Monitoring and reporting
Apr 1, 2022 Resolved
OXAMYL
Monitoring and reporting
Apr 1, 2022 Resolved
Di(2-ethylhexyl) adipate
Monitoring and reporting
Apr 1, 2022 Resolved
Glyphosate
Monitoring and reporting
Apr 1, 2022 Resolved
Endothall
Monitoring and reporting
Apr 1, 2022 Resolved
Diquat
Monitoring and reporting
Apr 1, 2022 Resolved
Dalapon
Monitoring and reporting
Apr 1, 2022 Resolved
Toxaphene
Monitoring and reporting
Apr 1, 2022 Resolved
Methoxychlor
Monitoring and reporting
Apr 1, 2022 Resolved
BHC-GAMMA
Monitoring and reporting
Apr 1, 2022 Resolved
Endrin
Monitoring and reporting
Apr 1, 2022 Resolved
Revised Total Coliform Rule
Monitoring violation
Apr 1, 2022 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Apr 1, 2022 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Apr 1, 2022 Resolved
Chlorine
Monitoring and reporting
Apr 1, 2022 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Mar 1, 2022 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Mar 1, 2022 Resolved
Revised Total Coliform Rule
Monitoring violation
Mar 1, 2022 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Feb 1, 2022 Resolved
Interim Enhanced 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
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
Arsenic
Monitoring and reporting
Jan 1, 2022 Resolved
Chlorine
Monitoring and reporting
Jan 1, 2022 Resolved
Chlordane
Monitoring and reporting
Jan 1, 2022 Resolved
ETHYLENE DIBROMIDE
Monitoring and reporting
Jan 1, 2022 Resolved
1,2-DIBROMO-3-CHLOROPROPANE
Monitoring and reporting
Jan 1, 2022 Resolved
Total Polychlorinated Biphenyls (PCB)
Monitoring and reporting
Jan 1, 2022 Resolved
Pentachlorophenol
Monitoring and reporting
Jan 1, 2022 Resolved
Benzo(a)pyrene
Monitoring and reporting
Jan 1, 2022 Resolved
HEXACHLOROBENZENE
Monitoring and reporting
Jan 1, 2022 Resolved
2,4,5-TP
Monitoring and reporting
Jan 1, 2022 Resolved
2,4-D
Monitoring and reporting
Jan 1, 2022 Resolved
Heptachlor epoxide
Monitoring and reporting
Jan 1, 2022 Resolved
Heptachlor
Monitoring and reporting
Jan 1, 2022 Resolved
2,3,7,8-TCDD
Monitoring and reporting
Jan 1, 2022 Resolved
LASSO
Monitoring and reporting
Jan 1, 2022 Resolved
Atrazine
Monitoring and reporting
Jan 1, 2022 Resolved
Carbofuran
Monitoring and reporting
Jan 1, 2022 Resolved
Hexachlorocyclopentadiene
Monitoring and reporting
Jan 1, 2022 Resolved
Dinoseb
Monitoring and reporting
Jan 1, 2022 Resolved
Picloram
Monitoring and reporting
Jan 1, 2022 Resolved
Di(2-ethylhexyl) phthalate
Monitoring and reporting
Jan 1, 2022 Resolved
Simazine
Monitoring and reporting
Jan 1, 2022 Resolved
OXAMYL
Monitoring and reporting
Jan 1, 2022 Resolved
Di(2-ethylhexyl) adipate
Monitoring and reporting
Jan 1, 2022 Resolved
Glyphosate
Monitoring and reporting
Jan 1, 2022 Resolved
Endothall
Monitoring and reporting
Jan 1, 2022 Resolved
Diquat
Monitoring and reporting
Jan 1, 2022 Resolved
Dalapon
Monitoring and reporting
Jan 1, 2022 Resolved
Toxaphene
Monitoring and reporting
Jan 1, 2022 Resolved
Methoxychlor
Monitoring and reporting
Jan 1, 2022 Resolved
BHC-GAMMA
Monitoring and reporting
Jan 1, 2022 Resolved
Endrin
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
Revised Total Coliform Rule
Monitoring violation
Jan 1, 2022 Resolved
Lead and Copper Rule
Monitoring and reporting
Jan 1, 2022 Resolved
Revised Total Coliform Rule
Monitoring violation
Dec 1, 2021 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Dec 1, 2021 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Dec 1, 2021 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Nov 1, 2021 Resolved
Revised Total Coliform Rule
Monitoring violation
Nov 1, 2021 Resolved
Consumer Confidence Rule
OTHER
Oct 1, 2021 Resolved
Chlorine
Monitoring and reporting
Oct 1, 2021 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Oct 1, 2021 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Oct 1, 2021 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Sep 1, 2021 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Sep 1, 2021 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Sep 1, 2021 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Sep 1, 2021 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Aug 1, 2021 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Aug 1, 2021 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2021 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Jul 1, 2021 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jul 1, 2021 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Jun 1, 2021 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jun 1, 2021 Resolved
Revised Total Coliform Rule
Monitoring violation
Jun 1, 2021 Resolved
Chlorine
Monitoring and reporting
Apr 1, 2021 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Mar 1, 2021 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Mar 1, 2021 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Feb 1, 2021 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Feb 1, 2021 Resolved
Styrene
Monitoring and reporting
Jan 1, 2021 Resolved
Ethylbenzene
Monitoring and reporting
Jan 1, 2021 Resolved
Toluene
Monitoring and reporting
Jan 1, 2021 Resolved
Benzene
Monitoring and reporting
Jan 1, 2021 Resolved
CHLOROBENZENE
Monitoring and reporting
Jan 1, 2021 Resolved
Tetrachloroethylene
Monitoring and reporting
Jan 1, 2021 Resolved
1,1,2-Trichloroethane
Monitoring and reporting
Jan 1, 2021 Resolved
Trichloroethylene
Monitoring and reporting
Jan 1, 2021 Resolved
1,2-Dichloropropane
Monitoring and reporting
Jan 1, 2021 Resolved
Carbon tetrachloride
Monitoring and reporting
Jan 1, 2021 Resolved
1,1,1-Trichloroethane
Monitoring and reporting
Jan 1, 2021 Resolved
1,2-Dichloroethane
Monitoring and reporting
Jan 1, 2021 Resolved
trans-1,2-Dichloroethylene
Monitoring and reporting
Jan 1, 2021 Resolved
1,1-Dichloroethylene
Monitoring and reporting
Jan 1, 2021 Resolved
Vinyl chloride
Monitoring and reporting
Jan 1, 2021 Resolved
p-Dichlorobenzene
Monitoring and reporting
Jan 1, 2021 Resolved
o-Dichlorobenzene
Monitoring and reporting
Jan 1, 2021 Resolved
DICHLOROMETHANE
Monitoring and reporting
Jan 1, 2021 Resolved
Xylenes, Total
Monitoring and reporting
Jan 1, 2021 Resolved
cis-1,2-Dichloroethylene
Monitoring and reporting
Jan 1, 2021 Resolved
1,2,4-Trichlorobenzene
Monitoring and reporting
Jan 1, 2021 Resolved
Arsenic
Monitoring and reporting
Jan 1, 2021 Resolved
Nitrate
Monitoring and reporting
Jan 1, 2021 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Jan 1, 2021 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jan 1, 2021 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Oct 1, 2020 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Oct 1, 2020 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Sep 1, 2020 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Sep 1, 2020 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Sep 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
Surface Water Treatment Rule
Monitoring and reporting
Jun 1, 2020 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jun 1, 2020 Resolved
Surface Water Treatment Rule
Monitoring and reporting
May 1, 2020 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
May 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
Surface Water Treatment Rule
Monitoring and reporting
Mar 1, 2020 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Mar 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
Surface Water Treatment Rule
Monitoring and reporting
Jan 1, 2020 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jan 1, 2020 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Dec 1, 2019 Resolved
Surface Water Treatment Rule
Monitoring and reporting
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
Consumer Confidence Rule
OTHER
Oct 1, 2019 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Sep 1, 2019 Resolved
Surface Water Treatment Rule
Monitoring and reporting
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
Surface Water Treatment Rule
Monitoring and reporting
Jun 1, 2019 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jun 1, 2019 Resolved
Revised Total Coliform Rule
Monitoring violation
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
Chlorine
Monitoring and reporting
Apr 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
Surface Water Treatment Rule
Monitoring and reporting
Nov 1, 2018 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Oct 1, 2018 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Sep 1, 2018 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Sep 1, 2018 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Aug 1, 2018 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Jul 1, 2018 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jul 1, 2018 Resolved
Surface Water Treatment Rule
Monitoring and reporting
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
Surface Water Treatment Rule
Monitoring and reporting
Apr 1, 2018 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
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
Surface Water Treatment Rule
Monitoring and reporting
Feb 1, 2018 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Feb 1, 2018 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jan 1, 2018 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Jan 1, 2018 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Dec 1, 2017 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Dec 1, 2017 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Nov 1, 2017 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Nov 1, 2017 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Oct 1, 2017 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Oct 1, 2017 Resolved
Revised Total Coliform Rule
Monitoring violation
Sep 1, 2017 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jul 2, 2017 Resolved
Chlorine
Monitoring and reporting
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
Surface Water Treatment Rule
Monitoring and reporting
Apr 1, 2017 Resolved
Consumer Confidence Rule
OTHER
Oct 1, 2016 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Sep 1, 2016 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2016 Resolved
Lead and Copper Rule
Monitoring and reporting
Jan 1, 2005 Active
Enforcement action in place

Full record since 1979

EPA's records for Nondalton go back to 1979. Before October 19, 2016 they list 34 health-based violations (34 resolved) and 606 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1970s 0 9
1980s 0 15
1990s 0 208
2000s 2 135
2010 to October 18, 2016 32 239
October 19, 2016 to 2019 11 48
2020s 9 359

Most recent health-based violation before October 19, 2016: Surface Water Treatment Rule, began October 2016, Resolved.

Show all 34 health-based violations before October 19, 2016
Contaminant Start date Status
Surface Water Treatment Rule
Treatment technique failure
Oct 1, 2016 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Oct 1, 2016 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Oct 1, 2016 Resolved
Surface Water Treatment Rule
Treatment technique failure
Sep 1, 2016 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Aug 1, 2016 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Aug 1, 2016 Resolved
Surface Water Treatment Rule
Treatment technique failure
Mar 1, 2015 Resolved
Surface Water Treatment Rule
Treatment technique failure
Feb 1, 2015 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Feb 1, 2015 Resolved
Surface Water Treatment Rule
Treatment technique failure
Jan 1, 2015 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Jan 1, 2015 Resolved
Surface Water Treatment Rule
Treatment technique failure
Dec 1, 2014 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Dec 1, 2014 Resolved
Surface Water Treatment Rule
Treatment technique failure
Nov 1, 2014 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Nov 1, 2014 Resolved
Surface Water Treatment Rule
Treatment technique failure
Oct 1, 2014 Resolved
Surface Water Treatment Rule
Treatment technique failure
Sep 1, 2014 Resolved
Surface Water Treatment Rule
Treatment technique failure
Aug 1, 2014 Resolved
Surface Water Treatment Rule
Treatment technique failure
Jul 1, 2014 Resolved
Surface Water Treatment Rule
Treatment technique failure
Jun 1, 2014 Resolved
Surface Water Treatment Rule
Treatment technique failure
May 1, 2014 Resolved
Surface Water Treatment Rule
Treatment technique failure
Apr 1, 2014 Resolved
Surface Water Treatment Rule
Treatment technique failure
Feb 1, 2014 Resolved
Surface Water Treatment Rule
Treatment technique failure
Jan 1, 2014 Resolved
Surface Water Treatment Rule
Treatment technique failure
Dec 1, 2013 Resolved
Surface Water Treatment Rule
Treatment technique failure
Sep 1, 2013 Resolved
Surface Water Treatment Rule
Treatment technique failure
Aug 1, 2013 Resolved
Surface Water Treatment Rule
Treatment technique failure
May 1, 2013 Resolved
Surface Water Treatment Rule
Treatment technique failure
Apr 1, 2013 Resolved
Surface Water Treatment Rule
Treatment technique failure
Mar 1, 2013 Resolved
Surface Water Treatment Rule
Treatment technique failure
Feb 1, 2013 Resolved
Total Coliform
Contaminant limit exceeded
Jul 1, 2010 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
Jan 1, 2008 Resolved
Surface Water Treatment Rule
Treatment technique failure
Oct 24, 2003 Resolved

Enforcement actions

Alaska regulators and EPA took 2 formal enforcement actions against Nondalton and issued 12 boil water orders between 1985 and 2025. The most recent was a boil water order in September 2025.

Date By Action Violations covered
Sep 10, 2025 Alaska Boil water order 1 violation
Apr 25, 2024 Alaska Boil water order 1 violation
Jan 27, 2022 Alaska Boil water order 1 violation
Apr 13, 2020 Alaska Boil water order 1 violation
May 15, 2017 Alaska Boil water order 1 violation
Jun 10, 2016 Alaska Boil water order 1 violation
Apr 8, 2015 Alaska Boil water order 1 violation
Mar 23, 2015 Alaska Boil water order 1 violation
Nov 1, 2012 Alaska Boil water order 1 violation
May 24, 2010 Alaska Boil water order 1 violation
Mar 26, 2009 Alaska Boil water order 1 violation
Apr 5, 2006 Alaska Compliance order (no penalty) 3 violations (1 health-based): Lead and Copper Rule, Surface Water Treatment Rule, Nitrate
Apr 30, 1992 EPA Compliance order (no penalty) 39 violations: Trichloroethylene, 1,1-Dichloroethylene, 1,1,1-Trichloroethane, Vinyl chloride, p-Dichlorobenzene
Sep 30, 1985 Alaska Boil water order 1 violation

What the violations mean

Surface Water Treatment Rule

17 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.

Interim Enhanced Surface Water Treatment Rule

6 incidents

The system did not meet a filtration or treatment requirement for surface water

Inadequate treatment of surface water can let pathogens such as Cryptosporidium and Giardia through

Where the water comes from

Nondalton draws water from 2 wells and 2 infiltration galleries.

Annual water quality report

Nondalton 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 Nondalton 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.