OK1020702 · Oklahoma
CHANDLER
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 18
- EPA health-based flag
- 9
- Health-based records unresolved in this snapshot
- 1
- Monitoring and reporting records
- 9
Counties listed by EPA · Lincoln 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 14 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.
EPA health-based flag · Addressed by formal action
LSL InventoryViolation 273579 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance period start October 17, 2024 · first reported August 13, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9006540 July 11, 2025 Informal State Violation/Reminder Notice 9006547 July 11, 2025 Informal State Public Notification requested 9999900000000000001 March 17, 2026 Formal Federal Final Administrative Order issued Monitoring or reporting · Unaddressed by formal action
Failure Submit IDSE/Subpart V Plan RptViolation 273597 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start June 30, 2026 · first reported August 11, 2026
No linked action row appears in the records shown.Monitoring or reporting · Unaddressed by formal action
Failure Submit IDSE/Subpart V Plan RptViolation 273594 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2026 · first reported August 11, 2026
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9006545 June 2, 2026 Informal State Violation/Reminder Notice Monitoring or reporting · Unaddressed by formal action
Failure Submit IDSE/Subpart V Plan RptViolation 273588 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start December 30, 2025 · first reported May 13, 2026
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9006543 February 19, 2026 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Failure Submit IDSE/Subpart V Plan RptViolation 273578 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2025 · period end June 4, 2025 · first reported August 13, 2025 · EPA return-to-compliance field June 4, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9006511 June 3, 2025 Informal State Violation/Reminder Notice 9006512 June 4, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
LSL ReportingViolation 273580 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance period start October 17, 2024 · period end September 30, 2025 · first reported August 13, 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 9006541 July 11, 2025 Informal State Violation/Reminder Notice 9006546 September 30, 2025 Resolving State Compliance achieved 9999900000000000001 March 17, 2026 Formal Federal Final Administrative Order issued EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 273567 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2023 · period end March 31, 2023 · first reported May 31, 2023 · EPA return-to-compliance field March 31, 2023
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9006497 April 12, 2023 Formal State Administrative/Compliance Order without penalty issued 9006498 April 12, 2023 Informal State Public Notification requested 9006499 May 11, 2023 Informal State Public Notification received 9006503 June 14, 2023 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 273566 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2023 · period end March 31, 2023 · first reported May 31, 2023 · EPA return-to-compliance field March 31, 2023
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9006497 April 12, 2023 Formal State Administrative/Compliance Order without penalty issued 9006498 April 12, 2023 Informal State Public Notification requested 9006499 May 11, 2023 Informal State Public Notification received 9006503 June 14, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Follow-up Or Routine LCR Tap M/RViolation 273560 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start January 1, 2023 · period end January 17, 2023 · first reported May 31, 2023 · EPA return-to-compliance field January 17, 2023
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9006484 December 2, 2022 Informal State Violation/Reminder Notice 9006485 December 2, 2022 Informal State Public Notification requested 9006486 January 17, 2023 Resolving State Compliance achieved 9006507 May 31, 2024 Informal State Public Notification received EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 273565 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2022 · period end December 31, 2022 · first reported March 27, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9006492 February 3, 2023 Formal State Administrative/Compliance Order without penalty issued 9006493 February 3, 2023 Informal State Public Notification requested 9006494 February 28, 2023 Informal State Public Notification received 9006502 June 14, 2023 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 273564 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2022 · period end December 31, 2022 · first reported March 27, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9006492 February 3, 2023 Formal State Administrative/Compliance Order without penalty issued 9006493 February 3, 2023 Informal State Public Notification requested 9006494 February 28, 2023 Informal State Public Notification received 9006502 June 14, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Failure Submit IDSE/Subpart V Plan RptViolation 273562 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start September 29, 2022 · period end December 13, 2022 · first reported March 27, 2023 · EPA return-to-compliance field December 13, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9006490 December 13, 2022 Resolving State Compliance achieved 9006488 January 18, 2023 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Failure Submit IDSE/Subpart V Plan RptViolation 273561 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start September 29, 2022 · period end December 13, 2022 · first reported March 27, 2023 · EPA return-to-compliance field December 13, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9006489 December 13, 2022 Resolving State Compliance achieved 9006487 January 18, 2023 Informal State Violation/Reminder Notice EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 273559 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2022 · period end September 30, 2022 · first reported March 27, 2023 · EPA return-to-compliance field September 30, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9006482 November 15, 2022 Formal State Administrative/Compliance Order without penalty issued 9006483 November 15, 2022 Informal State Public Notification requested 9006491 December 15, 2022 Informal State Public Notification received 9006501 June 14, 2023 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 273558 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2022 · period end September 30, 2022 · first reported March 27, 2023 · EPA return-to-compliance field September 30, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9006482 November 15, 2022 Formal State Administrative/Compliance Order without penalty issued 9006483 November 15, 2022 Informal State Public Notification requested 9006491 December 15, 2022 Informal State Public Notification received 9006501 June 14, 2023 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 273556 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2022 · period end June 30, 2022 · first reported September 26, 2022 · EPA return-to-compliance field June 30, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9006480 June 29, 2022 Formal State Administrative/Compliance Order without penalty issued 9006481 June 29, 2022 Informal State Public Notification requested 9006479 July 22, 2022 Informal State Public Notification received 9006500 June 14, 2023 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 273555 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2022 · period end June 30, 2022 · first reported September 26, 2022 · EPA return-to-compliance field June 30, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9006480 June 29, 2022 Formal State Administrative/Compliance Order without penalty issued 9006481 June 29, 2022 Informal State Public Notification requested 9006479 July 22, 2022 Informal State Public Notification received 9006500 June 14, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Follow-up Or Routine LCR Tap M/RViolation 273554 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start January 1, 2022 · period end January 17, 2023 · first reported May 19, 2022 · EPA return-to-compliance field January 17, 2023
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9006471 March 1, 2022 Informal State Violation/Reminder Notice 9006472 March 1, 2022 Informal State Public Notification requested 9006486 January 17, 2023 Resolving State Compliance achieved 9006496 April 4, 2023 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