AK2227539 · Alaska

TWIN PEAKS

Federal fiscal 2026Q3 · EPA violation and follow-up records

Violation records shown: 33
EPA health-based flag: 0
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 32

Counties listed by EPA · Matanuska-Susitna Borough, 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 8 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 29 days. The interval uses the reporting periods and dates on file.

Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6552500 · Surface Water Treatment Rule · Surface Water Treatment Rule
Noncompliance period start April 1, 2025 · period end April 30, 2025 · first reported September 12, 2025 · EPA return-to-compliance field April 30, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
8544091 June 29, 2025 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 6552499 · Revised Total Coliform Rule · Revised Total Coliform Rule
Noncompliance period start April 1, 2025 · period end April 30, 2025 · first reported September 12, 2025 · EPA return-to-compliance field April 30, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
8544091 June 29, 2025 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6552493 · Surface Water Treatment Rule · Surface Water Treatment Rule
Noncompliance period start November 1, 2024 · period end November 30, 2024 · first reported March 28, 2025 · EPA return-to-compliance field November 30, 2024

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
8544084 January 8, 2025 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6552489 · Surface Water Treatment Rule · Surface Water Treatment Rule
Noncompliance period start February 1, 2024 · period end February 29, 2024 · first reported May 30, 2024 · EPA return-to-compliance field February 29, 2024

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
8544073 May 13, 2024 Resolving State Compliance achieved
Monitoring or reporting · Archived
Monitoring, RegularViolation 6552526 · Styrene · Volatile Organic Chemicals
Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 6552525 · Ethylbenzene · Volatile Organic Chemicals
Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 6552524 · Toluene · Volatile Organic Chemicals
Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 6552523 · Benzene · Volatile Organic Chemicals
Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 6552522 · CHLOROBENZENE · Volatile Organic Chemicals
Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 6552521 · Tetrachloroethylene · Volatile Organic Chemicals
Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 6552520 · 1,1,2-Trichloroethane · Volatile Organic Chemicals
Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 6552519 · Trichloroethylene · Volatile Organic Chemicals
Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 6552518 · 1,2-Dichloropropane · Volatile Organic Chemicals
Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 6552517 · Carbon tetrachloride · Volatile Organic Chemicals
Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 6552516 · 1,1,1-Trichloroethane · Volatile Organic Chemicals
Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 6552515 · 1,2-Dichloroethane · Volatile Organic Chemicals
Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 6552514 · trans-1,2-Dichloroethylene · Volatile Organic Chemicals
Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 6552513 · 1,1-Dichloroethylene · Volatile Organic Chemicals
Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 6552512 · Vinyl chloride · Volatile Organic Chemicals
Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 6552511 · p-Dichlorobenzene · Volatile Organic Chemicals
Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 6552510 · o-Dichlorobenzene · Volatile Organic Chemicals
Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 6552509 · DICHLOROMETHANE · Volatile Organic Chemicals
Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 6552508 · Xylenes, Total · Volatile Organic Chemicals
Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 6552507 · cis-1,2-Dichloroethylene · Volatile Organic Chemicals
Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 6552506 · 1,2,4-Trichlorobenzene · Volatile Organic Chemicals
Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 6552504 · Arsenic · Arsenic Rule
Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6552475 · Surface Water Treatment Rule · Surface Water Treatment Rule
Noncompliance period start December 1, 2021 · period end December 31, 2021 · first reported May 30, 2024 · EPA return-to-compliance field December 31, 2021

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
8544063 February 24, 2022 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6552469 · Surface Water Treatment Rule · Surface Water Treatment Rule
Noncompliance period start December 1, 2020 · period end December 31, 2020 · first reported February 9, 2021 · EPA return-to-compliance field December 31, 2020

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
8544058 March 26, 2021 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6552471 · Surface Water Treatment Rule · Surface Water Treatment Rule
Noncompliance period start November 1, 2020 · period end November 30, 2020 · first reported February 9, 2021 · EPA return-to-compliance field November 30, 2020

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
8544058 March 26, 2021 Resolving State Compliance achieved
Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 6552468 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start October 1, 2020 · period end November 25, 2020 · first reported February 9, 2021 · EPA return-to-compliance field November 25, 2020

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
8544056 November 25, 2020 Resolving State Compliance achieved
8544057 November 25, 2020 Resolving State Compliance achieved
Monitoring or reporting · Archived
Monitoring, RegularViolation 6552529 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 6552528 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 6552527 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8544091	June 29, 2025	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8544091	June 29, 2025	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8544084	January 8, 2025	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8544073	May 13, 2024	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8544063	February 24, 2022	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8544058	March 26, 2021	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8544058	March 26, 2021	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8544056	November 25, 2020	Resolving	State Compliance achieved
8544057	November 25, 2020	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