AK2260309 · Alaska
UNALASKA WATER SYSTEM
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 20
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 20
Counties listed by EPA · Aleutians West Census Area, Alaska
Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.
Violations and what followed
Among 20 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 91 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 6774760 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2025 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5322139 January 26, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 6774759 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2025 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5322139 January 26, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 6774724 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start May 1, 2024 · period end May 31, 2024 · first reported August 30, 2024 · EPA return-to-compliance field May 31, 2024
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5322097 June 24, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)Violation 6774723 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start May 1, 2024 · period end May 31, 2024 · first reported August 30, 2024 · EPA return-to-compliance field May 31, 2024
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5322096 June 24, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 6774722 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start May 1, 2024 · period end May 31, 2024 · first reported August 30, 2024 · EPA return-to-compliance field May 31, 2024
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5322095 June 24, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 6774727 · Nitrate · Nitrate RuleNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported March 28, 2025 · EPA return-to-compliance field December 31, 2024
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5322120 April 21, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 6774726 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2024 · period end December 23, 2024 · first reported March 28, 2025 · EPA return-to-compliance field December 23, 2024
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5322107 December 23, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 6774725 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2024 · period end December 23, 2024 · first reported March 28, 2025 · EPA return-to-compliance field December 23, 2024
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5322107 December 23, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 6774721 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2023 · period end December 31, 2023 · first reported May 30, 2024 · EPA return-to-compliance field December 31, 2023
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5322089 March 19, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 6774720 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2023 · period end September 30, 2023 · first reported May 30, 2024 · EPA return-to-compliance field September 30, 2023
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5322089 March 19, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 6774718 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start May 1, 2022 · period end May 31, 2022 · first reported May 30, 2024 · EPA return-to-compliance field May 31, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5322050 July 14, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)Violation 6774717 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start May 1, 2022 · period end May 31, 2022 · first reported May 30, 2024 · EPA return-to-compliance field May 31, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5322050 July 14, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 6774719 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2022 · period end June 1, 2022 · first reported May 30, 2024 · EPA return-to-compliance field June 1, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5322052 June 1, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 6774715 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start November 1, 2021 · period end November 30, 2021 · first reported May 30, 2024 · EPA return-to-compliance field November 30, 2021
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5322055 November 17, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 6774736 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad RuleNoncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5322143 March 11, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 6774734 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad RuleNoncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5322143 March 11, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 6774733 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad RuleNoncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5322143 March 11, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 6774731 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad RuleNoncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5322143 March 11, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 6774730 · Combined Uranium · Radionuclides and Revised Rad RuleNoncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5322143 March 11, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 6774728 · Combined Uranium · Radionuclides and Revised Rad RuleNoncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5322143 March 11, 2026 Resolving State Compliance achieved
EPA data and scope
How to read the records
The enforcement snapshot is federal fiscal 2026Q3. The EPA archive labels its violation file October 13, 2026. EPA says federal reporting can lag by several months. For current advisories, check your utility or local drinking-water authority.
- We matched active community water systems by public water system ID between EPA’s system search and SDWIS inventory. We show violations with a recorded noncompliance, initial reporting or return-to-compliance date from 2021 onward, plus earlier records listed as Addressed or Unaddressed.
- EPA’s health-based flag identifies violations of contaminant or disinfectant limits or treatment requirements. Monitoring and reporting violations describe required tests or reports. Neither category measures household exposure.
- Addressed means EPA records formal enforcement on a violation that remains unresolved in the snapshot. Unaddressed means no formal action is recorded for an unresolved violation. Resolved can mean compliance was restored, the rule ceased to apply, or further action was unnecessary. Archived is a separate status.
- We count a violation once per water system and group its distinct linked actions. Conflicting records are set aside. Places are EPA-listed search locations and can include mailing locations. Use the provider name and system ID to identify your service.
EPA data dictionary and files · EPA reporting and enforcement FAQ · Find an annual water quality report · How to get the report from your utility