AK2260228 · Alaska
CHIGNIK BAY WATER SYSTEM
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 62
- EPA health-based flag
- 6
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 55
Counties listed by EPA · Lake and Peninsula 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 55 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 30 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Archived
Monitoring of Treatment (SWTR-Filter)Violation 6853520 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start May 1, 2026 · period end May 31, 2026 · first reported September 21, 2026 · EPA return-to-compliance field May 31, 2026
No linked action row appears in the records shown.Other or unclassified · Resolved
Public Notification Violation without NPDWR ViolationViolation 6853514 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start April 26, 2026 · period end April 27, 2026 · first reported September 21, 2026 · EPA return-to-compliance field April 27, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340990 April 27, 2026 Resolving State Compliance achieved 5340991 April 27, 2026 Resolving State Compliance achieved Monitoring or reporting · Archived
Monitoring of Treatment (SWTR-Filter)Violation 6853518 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start April 1, 2026 · period end April 30, 2026 · first reported September 21, 2026 · EPA return-to-compliance field April 30, 2026
No linked action row appears in the records shown.Monitoring or reporting · Archived
Monitoring of Treatment (SWTR-Filter)Violation 6853515 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start March 1, 2026 · period end March 31, 2026 · first reported September 21, 2026 · EPA return-to-compliance field March 31, 2026
No linked action row appears in the records shown.Monitoring or reporting · Archived
Monitoring of Treatment (SWTR-Filter)Violation 6853517 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start February 1, 2026 · period end February 28, 2026 · first reported September 21, 2026 · EPA return-to-compliance field February 28, 2026
No linked action row appears in the records shown.Monitoring or reporting · Unaddressed by formal action
Follow-up Or Routine LCR Tap M/RViolation 6853506 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start January 1, 2026 · first reported June 19, 2026
No linked action row appears in the records shown.Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853511 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start December 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 5340977 February 11, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853509 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start November 1, 2025 · period end November 30, 2025 · first reported March 20, 2026 · EPA return-to-compliance field November 30, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340977 February 11, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853507 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start October 1, 2025 · period end October 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field October 31, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340977 February 11, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853504 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start September 1, 2025 · period end September 30, 2025 · first reported March 20, 2026 · EPA return-to-compliance field September 30, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340977 February 11, 2026 Resolving State Compliance achieved EPA health-based flag · Resolved
Treatment Technique, Corrective/Expedited Actions (RTCR)Violation 6853497 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start September 1, 2025 · period end March 12, 2026 · first reported December 19, 2025 · EPA return-to-compliance field March 12, 2026
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340981 March 12, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853500 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start August 1, 2025 · period end August 31, 2025 · first reported December 19, 2025 · EPA return-to-compliance field August 31, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340977 February 11, 2026 Resolving State Compliance achieved EPA health-based flag · Resolved
Treatment Technique, Corrective/Expedited Actions (RTCR)Violation 6853496 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start August 1, 2025 · period end February 4, 2026 · first reported December 19, 2025 · EPA return-to-compliance field February 4, 2026
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340974 February 4, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853498 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start July 1, 2025 · period end July 31, 2025 · first reported December 19, 2025 · EPA return-to-compliance field July 31, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340977 February 11, 2026 Resolving State Compliance achieved EPA health-based flag · Resolved
Treatment Technique (SWTR and GWR)Violation 6853495 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start June 1, 2025 · period end June 30, 2025 · first reported September 12, 2025 · EPA return-to-compliance field June 30, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340978 February 11, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853493 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start May 1, 2025 · period end May 31, 2025 · first reported September 12, 2025 · EPA return-to-compliance field May 31, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340963 July 9, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853491 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance 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 5340963 July 9, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853489 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start March 1, 2025 · period end March 31, 2025 · first reported June 19, 2025 · EPA return-to-compliance field March 31, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340963 July 9, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 6853488 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2025 · period end January 31, 2025 · first reported June 19, 2025 · EPA return-to-compliance field January 31, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340934 February 13, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853486 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start January 1, 2025 · period end January 31, 2025 · first reported June 19, 2025 · EPA return-to-compliance field January 31, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340934 February 13, 2025 Resolving State Compliance achieved Monitoring or reporting · Unaddressed by formal action
Follow-up Or Routine LCR Tap M/RViolation 6853482 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start January 1, 2025 · first reported June 19, 2025
No linked action row appears in the records shown.Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853483 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start December 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 5340939 February 13, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 6853479 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start December 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 5340934 February 13, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 6853480 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance 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 5340934 February 13, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853476 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance 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 5340939 February 13, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 6853472 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance 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 5340931 December 1, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 6853481 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2024 · period end October 31, 2024 · first reported March 28, 2025 · EPA return-to-compliance field October 31, 2024
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340934 February 13, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853473 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start October 1, 2024 · period end October 31, 2024 · first reported March 28, 2025 · EPA return-to-compliance field October 31, 2024
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340939 February 13, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853469 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start September 1, 2024 · period end September 30, 2024 · first reported March 28, 2025 · EPA return-to-compliance field September 30, 2024
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340939 February 13, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 6853463 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start September 1, 2024 · period end September 30, 2024 · first reported December 6, 2024 · EPA return-to-compliance field September 30, 2024
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340934 February 13, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853466 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start August 1, 2024 · period end August 31, 2024 · first reported December 6, 2024 · EPA return-to-compliance field August 31, 2024
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340939 February 13, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 6853464 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start August 1, 2024 · period end August 31, 2024 · first reported December 6, 2024 · EPA return-to-compliance field August 31, 2024
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340934 February 13, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 6853459 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start August 1, 2024 · period end August 31, 2024 · first reported December 6, 2024 · EPA return-to-compliance field August 31, 2024
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340913 September 3, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 6853465 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2024 · period end July 31, 2024 · first reported December 6, 2024 · EPA return-to-compliance field July 31, 2024
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340934 February 13, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853460 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start July 1, 2024 · period end July 31, 2024 · first reported December 6, 2024 · EPA return-to-compliance field July 31, 2024
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340939 February 13, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853456 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start June 1, 2024 · period end June 30, 2024 · first reported August 30, 2024 · EPA return-to-compliance field June 30, 2024
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340939 February 13, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 6853453 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start June 1, 2024 · period end June 30, 2024 · first reported August 30, 2024 · EPA return-to-compliance field June 30, 2024
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340934 February 13, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853450 · 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 5340939 February 13, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853447 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start April 1, 2024 · period end April 30, 2024 · first reported August 30, 2024 · EPA return-to-compliance field April 30, 2024
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340939 February 13, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853442 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start March 1, 2024 · period end March 31, 2024 · first reported May 30, 2024 · EPA return-to-compliance field March 31, 2024
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340939 February 13, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853438 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance 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 5340900 April 10, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 6853487 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported June 19, 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 5340969 August 27, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 6853444 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2024 · period end March 31, 2024 · first reported May 30, 2024 · EPA return-to-compliance field March 31, 2024
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340934 February 13, 2025 Resolving State Compliance achieved Monitoring or reporting · Unaddressed by formal action
Follow-up Or Routine LCR Tap M/RViolation 6853437 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start January 1, 2024 · first reported May 30, 2024
No linked action row appears in the records shown.Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853435 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start December 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 5340898 February 12, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853433 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start November 1, 2023 · period end November 30, 2023 · first reported May 30, 2024 · EPA return-to-compliance field November 30, 2023
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340898 February 12, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853431 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start October 1, 2023 · period end October 31, 2023 · first reported May 30, 2024 · EPA return-to-compliance field October 31, 2023
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340898 February 12, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853428 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start September 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 5340898 February 12, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853426 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start August 1, 2023 · period end August 31, 2023 · first reported May 30, 2024 · EPA return-to-compliance field August 31, 2023
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340898 February 12, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853422 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start July 1, 2023 · period end July 31, 2023 · first reported May 30, 2024 · EPA return-to-compliance field July 31, 2023
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340898 February 12, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853419 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start June 1, 2023 · period end June 30, 2023 · first reported May 30, 2024 · EPA return-to-compliance field June 30, 2023
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340898 February 12, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853417 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start May 1, 2023 · period end May 31, 2023 · first reported May 30, 2024 · EPA return-to-compliance field May 31, 2023
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340898 February 12, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853416 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start April 1, 2023 · period end April 30, 2023 · first reported May 30, 2024 · EPA return-to-compliance field April 30, 2023
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340898 February 12, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853413 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start March 1, 2023 · period end March 31, 2023 · first reported May 30, 2024 · EPA return-to-compliance field March 31, 2023
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340898 February 12, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853410 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start February 1, 2023 · period end February 28, 2023 · first reported May 30, 2024 · EPA return-to-compliance field February 28, 2023
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340898 February 12, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 6853430 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 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 5340969 August 27, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853408 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start January 1, 2023 · period end January 31, 2023 · first reported May 30, 2024 · EPA return-to-compliance field January 31, 2023
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340898 February 12, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853406 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start December 1, 2022 · period end December 31, 2022 · first reported May 30, 2024 · EPA return-to-compliance field December 31, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340898 February 12, 2024 Resolving State Compliance achieved EPA health-based flag · Resolved
Treatment Technique (SWTR and GWR)Violation 6853403 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start December 1, 2020 · period end December 31, 2020 · first reported March 1, 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 5340799 February 11, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6853401 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start December 1, 2020 · period end December 31, 2020 · first reported March 1, 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 5340799 February 11, 2021 Resolving State Compliance achieved EPA health-based flag · Resolved
Failure To Address DeficiencyViolation 6853425 · Groundwater Rule · Ground Water RuleNoncompliance period start October 5, 2020 · period end October 13, 2022 · first reported November 29, 2023 · EPA return-to-compliance field October 13, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340890 October 13, 2022 Resolving State Compliance achieved EPA health-based flag · Resolved
Failure To Address DeficiencyViolation 6853424 · Groundwater Rule · Ground Water RuleNoncompliance period start October 5, 2020 · period end October 13, 2022 · first reported November 29, 2023 · EPA return-to-compliance field October 13, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5340890 October 13, 2022 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