OK3002011 · Oklahoma
FRONTIER DEVELOPMENT AUTH
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 8
- EPA health-based flag
- 1
- Health-based records unresolved in this snapshot
- 1
- Monitoring and reporting records
- 7
Counties listed by EPA · Custer 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 6 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 60.5 days. The interval uses the reporting periods and dates on file.
EPA health-based flag · Addressed by formal action
LSL InventoryViolation 194509 · 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 9000243 July 11, 2025 Informal State Violation/Reminder Notice 9000245 July 11, 2025 Informal State Public Notification requested 9999900000000000001 March 25, 2026 Formal Federal Final Administrative Order issued Monitoring or reporting · Addressed by formal action
LSL ReportingViolation 194510 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance period start October 17, 2024 · first reported August 13, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9000244 July 11, 2025 Informal State Violation/Reminder Notice 9999900000000000001 March 25, 2026 Formal Federal Final Administrative Order issued Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 194507 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start November 1, 2023 · period end November 30, 2023 · first reported February 14, 2024 · EPA return-to-compliance field November 30, 2023
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9000227 January 23, 2024 Informal State Violation/Reminder Notice 9000228 January 23, 2024 Informal State Public Notification requested 9000234 March 29, 2024 Resolving State Compliance achieved 9000236 June 13, 2024 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 194506 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2023 · period end December 31, 2023 · first reported February 14, 2024 · EPA return-to-compliance field December 31, 2023
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9000225 January 23, 2024 Informal State Violation/Reminder Notice 9000226 January 23, 2024 Informal State Public Notification requested 9000231 March 29, 2024 Resolving State Compliance achieved 9000235 June 13, 2024 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 194505 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start October 1, 2023 · period end October 31, 2023 · first reported February 14, 2024 · EPA return-to-compliance field October 31, 2023
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9000223 December 15, 2023 Informal State Violation/Reminder Notice 9000224 December 15, 2023 Informal State Public Notification requested 9000233 March 29, 2024 Resolving State Compliance achieved 9000238 June 13, 2024 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 194504 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2023 · period end December 31, 2023 · first reported February 14, 2024 · EPA return-to-compliance field December 31, 2023
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9000221 December 15, 2023 Informal State Violation/Reminder Notice 9000222 December 15, 2023 Informal State Public Notification requested 9000230 March 29, 2024 Resolving State Compliance achieved 9000237 June 13, 2024 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 194503 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start September 1, 2023 · period end September 30, 2023 · first reported February 14, 2024 · EPA return-to-compliance field September 30, 2023
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9000219 November 30, 2023 Informal State Violation/Reminder Notice 9000220 November 30, 2023 Informal State Public Notification requested 9000232 March 29, 2024 Resolving State Compliance achieved 9000240 June 13, 2024 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 194502 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2023 · period end September 30, 2023 · first reported February 14, 2024 · EPA return-to-compliance field September 30, 2023
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9000217 November 30, 2023 Informal State Violation/Reminder Notice 9000218 November 30, 2023 Informal State Public Notification requested 9000229 March 29, 2024 Resolving State Compliance achieved 9000239 June 13, 2024 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