OK1021505 · Oklahoma
COLLINSVILLE
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 25
- EPA health-based flag
- 1
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 24
Counties listed by EPA · Tulsa 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 3 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 · Archived
Monitoring, RegularViolation 2327 · 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
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9054031 February 19, 2026 Informal State Violation/Reminder Notice 9054032 February 19, 2026 Informal State Public Notification requested 9054033 February 19, 2026 Informal State Violation/Reminder Notice 9054034 February 19, 2026 Informal State Public Notification requested 9054035 June 17, 2026 Informal State Public Notification received Monitoring or reporting · Resolved
LSL ReportingViolation 2324 · 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 9054028 July 11, 2025 Informal State Violation/Reminder Notice 9054030 July 15, 2025 Resolving State Compliance achieved EPA health-based flag · Resolved
LSL InventoryViolation 2323 · 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 9054027 July 11, 2025 Informal State Violation/Reminder Notice 9054029 July 15, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Turbidity (Enhanced SWTR)Violation 2319 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment RuleNoncompliance period start July 1, 2023 · period end July 31, 2023 · first reported January 2, 2024 · EPA return-to-compliance field July 31, 2023
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9054023 September 22, 2023 Informal State Violation/Reminder Notice 9054024 September 22, 2023 Informal State Public Notification requested 9054025 October 5, 2023 Resolving State Compliance achieved Monitoring or reporting · Archived
Monitoring, RegularViolation 2349 · Styrene · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported May 13, 2026 · EPA return-to-compliance field December 31, 2025
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9054031 February 19, 2026 Informal State Violation/Reminder Notice 9054032 February 19, 2026 Informal State Public Notification requested 9054033 February 19, 2026 Informal State Violation/Reminder Notice 9054034 February 19, 2026 Informal State Public Notification requested 9054035 June 17, 2026 Informal State Public Notification received Monitoring or reporting · Archived
Monitoring, RegularViolation 2348 · Ethylbenzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported May 13, 2026 · EPA return-to-compliance field December 31, 2025
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9054031 February 19, 2026 Informal State Violation/Reminder Notice 9054032 February 19, 2026 Informal State Public Notification requested 9054033 February 19, 2026 Informal State Violation/Reminder Notice 9054034 February 19, 2026 Informal State Public Notification requested 9054035 June 17, 2026 Informal State Public Notification received Monitoring or reporting · Archived
Monitoring, RegularViolation 2347 · Toluene · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported May 13, 2026 · EPA return-to-compliance field December 31, 2025
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9054031 February 19, 2026 Informal State Violation/Reminder Notice 9054032 February 19, 2026 Informal State Public Notification requested 9054033 February 19, 2026 Informal State Violation/Reminder Notice 9054034 February 19, 2026 Informal State Public Notification requested 9054035 June 17, 2026 Informal State Public Notification received Monitoring or reporting · Archived
Monitoring, RegularViolation 2346 · Benzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported May 13, 2026 · EPA return-to-compliance field December 31, 2025
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9054031 February 19, 2026 Informal State Violation/Reminder Notice 9054032 February 19, 2026 Informal State Public Notification requested 9054033 February 19, 2026 Informal State Violation/Reminder Notice 9054034 February 19, 2026 Informal State Public Notification requested 9054035 June 17, 2026 Informal State Public Notification received Monitoring or reporting · Archived
Monitoring, RegularViolation 2345 · CHLOROBENZENE · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported May 13, 2026 · EPA return-to-compliance field December 31, 2025
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9054031 February 19, 2026 Informal State Violation/Reminder Notice 9054032 February 19, 2026 Informal State Public Notification requested 9054033 February 19, 2026 Informal State Violation/Reminder Notice 9054034 February 19, 2026 Informal State Public Notification requested 9054035 June 17, 2026 Informal State Public Notification received Monitoring or reporting · Archived
Monitoring, RegularViolation 2344 · Tetrachloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported May 13, 2026 · EPA return-to-compliance field December 31, 2025
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9054031 February 19, 2026 Informal State Violation/Reminder Notice 9054032 February 19, 2026 Informal State Public Notification requested 9054033 February 19, 2026 Informal State Violation/Reminder Notice 9054034 February 19, 2026 Informal State Public Notification requested 9054035 June 17, 2026 Informal State Public Notification received Monitoring or reporting · Archived
Monitoring, RegularViolation 2343 · 1,1,2-Trichloroethane · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported May 13, 2026 · EPA return-to-compliance field December 31, 2025
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9054031 February 19, 2026 Informal State Violation/Reminder Notice 9054032 February 19, 2026 Informal State Public Notification requested 9054033 February 19, 2026 Informal State Violation/Reminder Notice 9054034 February 19, 2026 Informal State Public Notification requested 9054035 June 17, 2026 Informal State Public Notification received Monitoring or reporting · Archived
Monitoring, RegularViolation 2342 · Trichloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported May 13, 2026 · EPA return-to-compliance field December 31, 2025
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9054031 February 19, 2026 Informal State Violation/Reminder Notice 9054032 February 19, 2026 Informal State Public Notification requested 9054033 February 19, 2026 Informal State Violation/Reminder Notice 9054034 February 19, 2026 Informal State Public Notification requested 9054035 June 17, 2026 Informal State Public Notification received Monitoring or reporting · Archived
Monitoring, RegularViolation 2341 · 1,2-Dichloropropane · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported May 13, 2026 · EPA return-to-compliance field December 31, 2025
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9054031 February 19, 2026 Informal State Violation/Reminder Notice 9054032 February 19, 2026 Informal State Public Notification requested 9054033 February 19, 2026 Informal State Violation/Reminder Notice 9054034 February 19, 2026 Informal State Public Notification requested 9054035 June 17, 2026 Informal State Public Notification received Monitoring or reporting · Archived
Monitoring, RegularViolation 2340 · Carbon tetrachloride · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported May 13, 2026 · EPA return-to-compliance field December 31, 2025
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9054031 February 19, 2026 Informal State Violation/Reminder Notice 9054032 February 19, 2026 Informal State Public Notification requested 9054033 February 19, 2026 Informal State Violation/Reminder Notice 9054034 February 19, 2026 Informal State Public Notification requested 9054035 June 17, 2026 Informal State Public Notification received Monitoring or reporting · Archived
Monitoring, RegularViolation 2339 · 1,1,1-Trichloroethane · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported May 13, 2026 · EPA return-to-compliance field December 31, 2025
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9054031 February 19, 2026 Informal State Violation/Reminder Notice 9054032 February 19, 2026 Informal State Public Notification requested 9054033 February 19, 2026 Informal State Violation/Reminder Notice 9054034 February 19, 2026 Informal State Public Notification requested 9054035 June 17, 2026 Informal State Public Notification received Monitoring or reporting · Archived
Monitoring, RegularViolation 2338 · 1,2-Dichloroethane · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported May 13, 2026 · EPA return-to-compliance field December 31, 2025
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9054031 February 19, 2026 Informal State Violation/Reminder Notice 9054032 February 19, 2026 Informal State Public Notification requested 9054033 February 19, 2026 Informal State Violation/Reminder Notice 9054034 February 19, 2026 Informal State Public Notification requested 9054035 June 17, 2026 Informal State Public Notification received Monitoring or reporting · Archived
Monitoring, RegularViolation 2337 · trans-1,2-Dichloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported May 13, 2026 · EPA return-to-compliance field December 31, 2025
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9054031 February 19, 2026 Informal State Violation/Reminder Notice 9054032 February 19, 2026 Informal State Public Notification requested 9054033 February 19, 2026 Informal State Violation/Reminder Notice 9054034 February 19, 2026 Informal State Public Notification requested 9054035 June 17, 2026 Informal State Public Notification received Monitoring or reporting · Archived
Monitoring, RegularViolation 2336 · 1,1-Dichloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported May 13, 2026 · EPA return-to-compliance field December 31, 2025
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9054031 February 19, 2026 Informal State Violation/Reminder Notice 9054032 February 19, 2026 Informal State Public Notification requested 9054033 February 19, 2026 Informal State Violation/Reminder Notice 9054034 February 19, 2026 Informal State Public Notification requested 9054035 June 17, 2026 Informal State Public Notification received Monitoring or reporting · Archived
Monitoring, RegularViolation 2335 · Vinyl chloride · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported May 13, 2026 · EPA return-to-compliance field December 31, 2025
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9054031 February 19, 2026 Informal State Violation/Reminder Notice 9054032 February 19, 2026 Informal State Public Notification requested 9054033 February 19, 2026 Informal State Violation/Reminder Notice 9054034 February 19, 2026 Informal State Public Notification requested 9054035 June 17, 2026 Informal State Public Notification received Monitoring or reporting · Archived
Monitoring, RegularViolation 2334 · p-Dichlorobenzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported May 13, 2026 · EPA return-to-compliance field December 31, 2025
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9054031 February 19, 2026 Informal State Violation/Reminder Notice 9054032 February 19, 2026 Informal State Public Notification requested 9054033 February 19, 2026 Informal State Violation/Reminder Notice 9054034 February 19, 2026 Informal State Public Notification requested 9054035 June 17, 2026 Informal State Public Notification received Monitoring or reporting · Archived
Monitoring, RegularViolation 2333 · o-Dichlorobenzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported May 13, 2026 · EPA return-to-compliance field December 31, 2025
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9054031 February 19, 2026 Informal State Violation/Reminder Notice 9054032 February 19, 2026 Informal State Public Notification requested 9054033 February 19, 2026 Informal State Violation/Reminder Notice 9054034 February 19, 2026 Informal State Public Notification requested 9054035 June 17, 2026 Informal State Public Notification received Monitoring or reporting · Archived
Monitoring, RegularViolation 2332 · DICHLOROMETHANE · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported May 13, 2026 · EPA return-to-compliance field December 31, 2025
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9054031 February 19, 2026 Informal State Violation/Reminder Notice 9054032 February 19, 2026 Informal State Public Notification requested 9054033 February 19, 2026 Informal State Violation/Reminder Notice 9054034 February 19, 2026 Informal State Public Notification requested 9054035 June 17, 2026 Informal State Public Notification received Monitoring or reporting · Archived
Monitoring, RegularViolation 2331 · Xylenes, Total · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported May 13, 2026 · EPA return-to-compliance field December 31, 2025
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9054031 February 19, 2026 Informal State Violation/Reminder Notice 9054032 February 19, 2026 Informal State Public Notification requested 9054033 February 19, 2026 Informal State Violation/Reminder Notice 9054034 February 19, 2026 Informal State Public Notification requested 9054035 June 17, 2026 Informal State Public Notification received Monitoring or reporting · Archived
Monitoring, RegularViolation 2330 · cis-1,2-Dichloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported May 13, 2026 · EPA return-to-compliance field December 31, 2025
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9054031 February 19, 2026 Informal State Violation/Reminder Notice 9054032 February 19, 2026 Informal State Public Notification requested 9054033 February 19, 2026 Informal State Violation/Reminder Notice 9054034 February 19, 2026 Informal State Public Notification requested 9054035 June 17, 2026 Informal State Public Notification received Monitoring or reporting · Archived
Monitoring, RegularViolation 2329 · 1,2,4-Trichlorobenzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported May 13, 2026 · EPA return-to-compliance field December 31, 2025
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9054031 February 19, 2026 Informal State Violation/Reminder Notice 9054032 February 19, 2026 Informal State Public Notification requested 9054033 February 19, 2026 Informal State Violation/Reminder Notice 9054034 February 19, 2026 Informal State Public Notification requested 9054035 June 17, 2026 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