OK2003501 · Oklahoma
MILL CREEK
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 6
- EPA health-based flag
- 1
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 5
Counties listed by EPA · Johnston 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 5 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 271 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Unaddressed by formal action
Follow-up Or Routine LCR Tap M/RViolation 160596 · 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 9210547 November 21, 2025 Informal State Violation/Reminder Notice 9210548 November 21, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 160597 · Nitrate-Nitrite · Nitrate RuleNoncompliance period start January 1, 2025 · period end December 31, 2025 · first reported May 13, 2026 · EPA return-to-compliance field December 31, 2025
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9210549 February 19, 2026 Informal State Violation/Reminder Notice 9210550 February 19, 2026 Informal State Public Notification requested 9210551 June 29, 2026 Resolving State Compliance achieved 9210552 June 29, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
LSL ReportingViolation 160595 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance period start October 17, 2024 · period end July 15, 2025 · first reported August 13, 2025 · EPA return-to-compliance field July 15, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9210544 July 11, 2025 Informal State Violation/Reminder Notice 9210546 July 15, 2025 Resolving State Compliance achieved EPA health-based flag · Resolved
LSL InventoryViolation 160594 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance period start October 17, 2024 · period end July 15, 2025 · first reported August 13, 2025 · EPA return-to-compliance field July 15, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9210543 July 11, 2025 Informal State Violation/Reminder Notice 9210545 July 15, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 160593 · Dalapon · Synthetic Organic ChemicalsNoncompliance period start July 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 9210539 November 22, 2024 Informal State Violation/Reminder Notice 9210540 November 22, 2024 Informal State Public Notification requested 9210541 January 17, 2025 Resolving State Compliance achieved 9210542 July 7, 2025 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 160585 · Di(2-ethylhexyl) adipate · Synthetic Organic ChemicalsNoncompliance 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 9210531 August 30, 2022 Informal State Violation/Reminder Notice 9210532 August 30, 2022 Informal State Public Notification requested 9210533 February 3, 2023 Resolving State Compliance achieved 9210538 August 30, 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