OK1020911 · Oklahoma
LANGSTON PWA
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 18
- EPA health-based flag
- 8
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 9
Counties listed by EPA · Logan 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 13 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 90 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Archived
Monitoring, Turbidity (Enhanced SWTR)Violation 295289 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment RuleNoncompliance period start February 1, 2026 · period end February 28, 2026 · first reported May 13, 2026 · EPA return-to-compliance field February 28, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9196562 April 15, 2026 Informal State Violation/Reminder Notice 9196563 April 15, 2026 Informal State Public Notification requested Monitoring or reporting · Archived
Monitoring, Routine (RTCR)Violation 295286 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start December 1, 2025 · period end December 31, 2025 · first reported May 13, 2026 · EPA return-to-compliance field December 31, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9196559 February 19, 2026 Informal State Violation/Reminder Notice 9196560 February 19, 2026 Informal State Public Notification requested Monitoring or reporting · Archived
Monitoring and Reporting (DBP)Violation 295285 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start December 1, 2025 · period end December 31, 2025 · first reported May 13, 2026 · EPA return-to-compliance field December 31, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9196559 February 19, 2026 Informal State Violation/Reminder Notice 9196560 February 19, 2026 Informal State Public Notification requested Monitoring or reporting · Unaddressed by formal action
Follow-up Or Routine LCR Tap M/RViolation 295284 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start October 1, 2025 · first reported February 18, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9196557 November 21, 2025 Informal State Violation/Reminder Notice 9196558 November 21, 2025 Informal State Public Notification requested Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 295282 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2025 · period end June 30, 2026 · first reported November 14, 2025 · EPA return-to-compliance field June 30, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9196564 August 19, 2025 Informal State Violation/Reminder Notice 9196565 June 30, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 295279 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start March 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 9196553 June 3, 2025 Informal State Violation/Reminder Notice 9196554 June 3, 2025 Informal State Public Notification requested 9196556 June 26, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 295278 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start March 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 9196553 June 3, 2025 Informal State Violation/Reminder Notice 9196554 June 3, 2025 Informal State Public Notification requested 9196555 June 26, 2025 Resolving State Compliance achieved Monitoring or reporting · Archived
Monitoring of Treatment (SWTR-Filter)Violation 295276 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start September 1, 2024 · period end September 30, 2024 · first reported May 15, 2025 · EPA return-to-compliance field September 30, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9196550 March 7, 2025 Informal State Violation/Reminder Notice 9196551 March 7, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 295273 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start September 1, 2024 · period end September 30, 2024 · first reported February 25, 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 9196547 February 21, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Turbidity (Enhanced SWTR)Violation 295271 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment RuleNoncompliance period start April 1, 2024 · period end April 30, 2024 · first reported September 30, 2024 · EPA return-to-compliance field April 30, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9196544 June 18, 2024 Informal State Violation/Reminder Notice 9196545 June 18, 2024 Informal State Public Notification requested 9196546 July 30, 2024 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 295261 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2021 · period end June 30, 2021 · first reported November 16, 2021 · EPA return-to-compliance field June 30, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9196539 November 5, 2021 Formal State Administrative/Compliance Order without penalty issued 9196540 November 5, 2021 Informal State Public Notification requested 9196541 December 9, 2021 Informal State Public Notification received 9196542 April 8, 2022 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 295260 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2021 · period end June 30, 2021 · first reported November 16, 2021 · EPA return-to-compliance field June 30, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9196539 November 5, 2021 Formal State Administrative/Compliance Order without penalty issued 9196540 November 5, 2021 Informal State Public Notification requested 9196541 December 9, 2021 Informal State Public Notification received 9196542 April 8, 2022 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 295263 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2021 · period end March 31, 2021 · first reported November 16, 2021 · EPA return-to-compliance field March 31, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9196539 November 5, 2021 Formal State Administrative/Compliance Order without penalty issued 9196540 November 5, 2021 Informal State Public Notification requested 9196541 December 9, 2021 Informal State Public Notification received 9196542 April 8, 2022 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 295262 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2021 · period end March 31, 2021 · first reported November 16, 2021 · EPA return-to-compliance field March 31, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9196539 November 5, 2021 Formal State Administrative/Compliance Order without penalty issued 9196540 November 5, 2021 Informal State Public Notification requested 9196541 December 9, 2021 Informal State Public Notification received 9196542 April 8, 2022 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 295251 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2020 · period end December 31, 2020 · first reported March 22, 2021 · EPA return-to-compliance field December 31, 2020
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9196531 March 12, 2021 Formal State Administrative/Compliance Order without penalty issued 9196532 March 12, 2021 Informal State Public Notification requested 9196537 April 14, 2021 Informal State Public Notification received 9196542 April 8, 2022 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 295250 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2020 · period end December 31, 2020 · first reported March 22, 2021 · EPA return-to-compliance field December 31, 2020
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9196531 March 12, 2021 Formal State Administrative/Compliance Order without penalty issued 9196532 March 12, 2021 Informal State Public Notification requested 9196537 April 14, 2021 Informal State Public Notification received 9196542 April 8, 2022 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 295249 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2020 · period end September 30, 2020 · first reported March 22, 2021 · EPA return-to-compliance field September 30, 2020
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9196531 March 12, 2021 Formal State Administrative/Compliance Order without penalty issued 9196532 March 12, 2021 Informal State Public Notification requested 9196537 April 14, 2021 Informal State Public Notification received 9196542 April 8, 2022 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 295248 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2020 · period end September 30, 2020 · first reported March 22, 2021 · EPA return-to-compliance field September 30, 2020
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9196531 March 12, 2021 Formal State Administrative/Compliance Order without penalty issued 9196532 March 12, 2021 Informal State Public Notification requested 9196537 April 14, 2021 Informal State Public Notification received 9196542 April 8, 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