OK2001601 · Oklahoma
STERLING PWA
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 16
- EPA health-based flag
- 1
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 15
Counties listed by EPA · Comanche 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 12 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 1,095 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
LSL ReportingViolation 145658 · 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 9001563 July 11, 2025 Informal State Violation/Reminder Notice 9001565 July 15, 2025 Resolving State Compliance achieved EPA health-based flag · Resolved
LSL InventoryViolation 145657 · 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 9001562 July 11, 2025 Informal State Violation/Reminder Notice 9001564 July 15, 2025 Resolving State Compliance achieved Monitoring or reporting · Archived
Monitoring, RegularViolation 145675 · Gross Beta Particle Activity · Radionuclides and Revised Rad RuleNoncompliance period start January 1, 2020 · period end December 31, 2025 · first reported May 13, 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 9001566 February 19, 2026 Informal State Violation/Reminder Notice 9001567 February 19, 2026 Informal State Public Notification requested 9001568 March 9, 2026 Informal State Public Notification received Monitoring or reporting · Archived
Monitoring, RegularViolation 145674 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad RuleNoncompliance period start January 1, 2020 · period end December 31, 2025 · first reported May 13, 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 9001566 February 19, 2026 Informal State Violation/Reminder Notice 9001567 February 19, 2026 Informal State Public Notification requested 9001568 March 9, 2026 Informal State Public Notification received Monitoring or reporting · Archived
Monitoring, RegularViolation 145673 · Combined Uranium · Radionuclides and Revised Rad RuleNoncompliance period start January 1, 2020 · period end December 31, 2025 · first reported May 13, 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 9001566 February 19, 2026 Informal State Violation/Reminder Notice 9001567 February 19, 2026 Informal State Public Notification requested 9001568 March 9, 2026 Informal State Public Notification received Monitoring or reporting · Archived
Monitoring, RegularViolation 145672 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad RuleNoncompliance period start January 1, 2020 · period end December 31, 2025 · first reported May 13, 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 9001566 February 19, 2026 Informal State Violation/Reminder Notice 9001567 February 19, 2026 Informal State Public Notification requested 9001568 March 9, 2026 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 145652 · Selenium · Inorganic ChemicalsNoncompliance period start January 1, 2020 · 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 9001553 March 14, 2023 Informal State Violation/Reminder Notice 9001554 March 14, 2023 Informal State Public Notification requested 9001556 June 7, 2023 Resolving State Compliance achieved 9001557 July 10, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 145651 · Thallium, Total · Inorganic ChemicalsNoncompliance period start January 1, 2020 · 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 9001553 March 14, 2023 Informal State Violation/Reminder Notice 9001554 March 14, 2023 Informal State Public Notification requested 9001556 June 7, 2023 Resolving State Compliance achieved 9001557 July 10, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 145650 · Beryllium, Total · Inorganic ChemicalsNoncompliance period start January 1, 2020 · 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 9001553 March 14, 2023 Informal State Violation/Reminder Notice 9001554 March 14, 2023 Informal State Public Notification requested 9001556 June 7, 2023 Resolving State Compliance achieved 9001557 July 10, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 145649 · Antimony, Total · Inorganic ChemicalsNoncompliance period start January 1, 2020 · 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 9001553 March 14, 2023 Informal State Violation/Reminder Notice 9001554 March 14, 2023 Informal State Public Notification requested 9001556 June 7, 2023 Resolving State Compliance achieved 9001557 July 10, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 145648 · Nickel · Inorganic ChemicalsNoncompliance period start January 1, 2020 · 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 9001553 March 14, 2023 Informal State Violation/Reminder Notice 9001554 March 14, 2023 Informal State Public Notification requested 9001556 June 7, 2023 Resolving State Compliance achieved 9001557 July 10, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 145647 · Mercury · Inorganic ChemicalsNoncompliance period start January 1, 2020 · 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 9001553 March 14, 2023 Informal State Violation/Reminder Notice 9001554 March 14, 2023 Informal State Public Notification requested 9001556 June 7, 2023 Resolving State Compliance achieved 9001557 July 10, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 145646 · Fluoride · Inorganic ChemicalsNoncompliance period start January 1, 2020 · 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 9001553 March 14, 2023 Informal State Violation/Reminder Notice 9001554 March 14, 2023 Informal State Public Notification requested 9001556 June 7, 2023 Resolving State Compliance achieved 9001557 July 10, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 145645 · Chromium · Inorganic ChemicalsNoncompliance period start January 1, 2020 · 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 9001553 March 14, 2023 Informal State Violation/Reminder Notice 9001554 March 14, 2023 Informal State Public Notification requested 9001556 June 7, 2023 Resolving State Compliance achieved 9001557 July 10, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 145644 · Cadmium · Inorganic ChemicalsNoncompliance period start January 1, 2020 · 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 9001553 March 14, 2023 Informal State Violation/Reminder Notice 9001554 March 14, 2023 Informal State Public Notification requested 9001556 June 7, 2023 Resolving State Compliance achieved 9001557 July 10, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 145643 · Barium · Inorganic ChemicalsNoncompliance period start January 1, 2020 · 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 9001553 March 14, 2023 Informal State Violation/Reminder Notice 9001554 March 14, 2023 Informal State Public Notification requested 9001556 June 7, 2023 Resolving State Compliance achieved 9001557 July 10, 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