OK1020504 · Oklahoma
SHAWNEE MUNICIPAL AUTHORITY
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 9
- EPA health-based flag
- 5
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 4
Counties listed by EPA · Pottawatomie County, Oklahoma
Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.
Violations and what followed
Among 4 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 28 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 139736 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start February 1, 2026 · period end February 28, 2026 · first reported May 13, 2026 · EPA return-to-compliance field February 28, 2026
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9200642 April 15, 2026 Informal State Violation/Reminder Notice 9200643 April 15, 2026 Informal State Public Notification requested 9200646 May 7, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 139735 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start February 1, 2026 · period end February 28, 2026 · first reported May 13, 2026 · EPA return-to-compliance field February 28, 2026
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9200642 April 15, 2026 Informal State Violation/Reminder Notice 9200643 April 15, 2026 Informal State Public Notification requested 9200645 May 7, 2026 Resolving State Compliance achieved EPA health-based flag · Archived
Treatment Technique Precursor RemovalViolation 139739 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2026 · period end March 31, 2026 · first reported August 11, 2026 · EPA return-to-compliance field March 31, 2026
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9200647 June 1, 2026 Formal State Administrative/Compliance Order without penalty issued 9200648 June 1, 2026 Informal State Public Notification requested 9200649 June 3, 2026 Informal State Public Notification received EPA health-based flag · Archived
Treatment Technique Precursor RemovalViolation 139732 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2025 · period end December 31, 2025 · first reported February 18, 2026 · EPA return-to-compliance field December 31, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9200639 February 2, 2026 Formal State Administrative/Compliance Order without penalty issued 9200640 February 2, 2026 Informal State Public Notification requested 9200641 February 24, 2026 Informal State Public Notification received EPA health-based flag · Archived
Treatment Technique Precursor RemovalViolation 139729 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2025 · period end September 30, 2025 · first reported November 14, 2025 · EPA return-to-compliance field September 30, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9200636 November 12, 2025 Informal State Public Notification requested 9200637 November 12, 2025 Formal State Administrative/Compliance Order without penalty issued 9200638 December 16, 2025 Informal State Public Notification received EPA health-based flag · Archived
Treatment Technique Precursor RemovalViolation 139728 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2025 · period end June 30, 2025 · first reported November 14, 2025 · EPA return-to-compliance field June 30, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9200631 September 4, 2025 Informal State Public Notification requested 9200634 September 4, 2025 Formal State Administrative/Compliance Order without penalty issued 9200632 September 17, 2025 Informal State Public Notification received EPA health-based flag · Archived
Treatment Technique Precursor RemovalViolation 139724 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2025 · period end March 31, 2025 · first reported August 13, 2025 · EPA return-to-compliance field March 31, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9200628 July 1, 2025 Informal State Public Notification requested 9200630 July 1, 2025 Formal State Administrative/Compliance Order without penalty issued 9200633 July 22, 2025 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 139713 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start September 1, 2024 · period end September 30, 2024 · first reported December 30, 2024 · EPA return-to-compliance field September 30, 2024
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9200619 November 22, 2024 Informal State Violation/Reminder Notice 9200620 November 22, 2024 Informal State Public Notification requested 9200623 December 6, 2024 Resolving State Compliance achieved 9200627 May 9, 2025 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 139712 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start September 1, 2024 · period end September 30, 2024 · first reported December 30, 2024 · EPA return-to-compliance field September 30, 2024
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9200619 November 22, 2024 Informal State Violation/Reminder Notice 9200620 November 22, 2024 Informal State Public Notification requested 9200622 December 6, 2024 Resolving State Compliance achieved 9200627 May 9, 2025 Informal State Public Notification received
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