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PA1150066 · Pennsylvania

OXFORD BOROUGH

Federal fiscal 2026Q3 · EPA violation and follow-up records

Violation records shown: 8
EPA health-based flag: 0
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 8

Counties listed by EPA · Chester County, Pennsylvania

Open the EPA system record

Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.

Violations and what followed

Among 8 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 60 days. The interval uses the reporting periods and dates on file.

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Unfilt/GWR)Violation 2618214 · Groundwater Rule · Ground Water Rule

Noncompliance period start June 1, 2026 · period end June 30, 2026 · first reported August 26, 2026 · EPA return-to-compliance field June 30, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26182146001	July 22, 2026	Informal	State Violation/Reminder Notice
26182148001	July 24, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 2520493 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start April 1, 2025 · period end June 30, 2025 · first reported August 20, 2025 · EPA return-to-compliance field June 30, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25204921	August 7, 2025	Informal	State Formal Notice of Violation issued
25204921001	August 7, 2025	Informal	State Public Notification requested
26204922001	November 18, 2025	Resolving	State Compliance achieved
26204923001	July 2, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 2520492 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start April 1, 2025 · period end June 30, 2025 · first reported August 20, 2025 · EPA return-to-compliance field June 30, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25204921	August 7, 2025	Informal	State Formal Notice of Violation issued
25204921001	August 7, 2025	Informal	State Public Notification requested
26204922001	November 18, 2025	Resolving	State Compliance achieved
26204923001	July 2, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Unfilt/GWR)Violation 2317826 · Groundwater Rule · Ground Water Rule

Noncompliance period start March 1, 2023 · period end March 31, 2023 · first reported May 22, 2023 · EPA return-to-compliance field March 31, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
231782678002	May 11, 2023	Informal	State Formal Notice of Violation issued
231782679002	May 11, 2023	Informal	State Public Notification requested
231782681002	May 11, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 2234797 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start August 1, 2022 · period end August 31, 2022 · first reported February 12, 2026 · EPA return-to-compliance field August 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
223479772001	September 30, 2022	Informal	State Violation/Reminder Notice
223479774001	September 30, 2022	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 2127444 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start July 1, 2021 · period end July 31, 2021 · first reported September 17, 2021 · EPA return-to-compliance field July 31, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
212744466001	August 31, 2021	Informal	State Violation/Reminder Notice
212744466003	August 31, 2021	Informal	State Violation/Reminder Notice
222744468001	February 4, 2022	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2122263 · Nitrite · Nitrate Rule

Noncompliance period start April 1, 2021 · period end June 30, 2021 · first reported August 15, 2021 · EPA return-to-compliance field June 30, 2021

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
212226266001	August 2, 2021	Informal	State Violation/Reminder Notice
212226268001	August 3, 2021	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2122262 · Nitrate · Nitrate Rule

Noncompliance period start April 1, 2021 · period end June 30, 2021 · first reported August 15, 2021 · EPA return-to-compliance field June 30, 2021

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
212226266001	August 2, 2021	Informal	State Violation/Reminder Notice
212226268001	August 3, 2021	Resolving	State Compliance achieved

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