PA5100054 · Pennsylvania

LAKE ARTHUR ESTATES

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: 1
Monitoring and reporting records: 13

Counties listed by EPA · Butler County, Pennsylvania

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

Violations and what followed

Among 14 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 76 days. The interval uses the reporting periods and dates on file.

EPA health-based flag · Unaddressed by formal action

Failure To Address DeficiencyViolation 2602263 · Groundwater Rule · Ground Water Rule

Noncompliance period start September 11, 2025 · first reported March 11, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26022636001	December 3, 2025	Informal	State Formal Notice of Violation issued
26022637001	December 3, 2025	Informal	State Public Notification requested
26022638001	December 12, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Report Sample Result/Fail Monitor (RTCR)Violation 2618098 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start June 11, 2026 · period end July 8, 2026 · first reported August 26, 2026 · EPA return-to-compliance field July 8, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26176616007	July 8, 2026	Informal	State Violation/Reminder Notice
26176618007	July 8, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Unfilt/GWR)Violation 2617661 · Groundwater Rule · Ground Water Rule

Noncompliance period start May 1, 2026 · period end May 31, 2026 · first reported August 26, 2026 · EPA return-to-compliance field May 31, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26176616007	July 8, 2026	Informal	State Violation/Reminder Notice
26176618007	July 8, 2026	Resolving	State Compliance achieved

Other or unclassified · Resolved

Public Notification Violation for NPDWR ViolationViolation 2610854 · Public Notice · Public Notice Rule and Revised PN Rule

Noncompliance period start January 11, 2026 · period end February 19, 2026 · first reported March 11, 2026 · EPA return-to-compliance field February 19, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26108546006	February 19, 2026	Informal	State Violation/Reminder Notice
26108547006	February 19, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Unfilt/GWR)Violation 2610853 · Groundwater Rule · Ground Water Rule

Noncompliance period start January 1, 2026 · period end January 31, 2026 · first reported March 30, 2026 · EPA return-to-compliance field January 31, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26108536005	March 11, 2026	Informal	State Formal Notice of Violation issued
26108538005	March 12, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2607181 · Radium-228 · Radionuclides and Revised Rad Rule

Noncompliance period start October 1, 2025 · period end December 31, 2025 · first reported March 11, 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
26071796002	February 11, 2026	Informal	State Formal Notice of Violation issued
26071797002	February 11, 2026	Informal	State Public Notification requested
26071808003	May 18, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2607180 · Radium-226 · Radionuclides and Revised Rad Rule

Noncompliance period start October 1, 2025 · period end December 31, 2025 · first reported March 11, 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
26071796002	February 11, 2026	Informal	State Formal Notice of Violation issued
26071797002	February 11, 2026	Informal	State Public Notification requested
26071808003	May 18, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Archived

Monitoring, RegularViolation 2607179 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start October 1, 2025 · period end December 31, 2025 · first reported March 11, 2026 · EPA return-to-compliance field December 31, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26071796002	February 11, 2026	Informal	State Formal Notice of Violation issued
26071797002	February 11, 2026	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Unfilt/GWR)Violation 2501630 · Groundwater Rule · Ground Water Rule

Noncompliance period start October 1, 2024 · period end October 31, 2024 · first reported February 19, 2025 · EPA return-to-compliance field October 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25016301	December 10, 2024	Informal	State Formal Notice of Violation issued
25016303001	December 10, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Unfilt/GWR)Violation 2429252 · Groundwater Rule · Ground Water Rule

Noncompliance period start August 1, 2024 · period end August 31, 2024 · first reported November 22, 2024 · EPA return-to-compliance field August 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
252925284005	October 10, 2024	Informal	State Formal Notice of Violation issued
252925285005	October 10, 2024	Informal	State Public Notification requested
252925287005	October 10, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 2432551 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2024 · period end September 30, 2024 · first reported February 19, 2025 · EPA return-to-compliance field September 30, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
253255084006	November 12, 2024	Informal	State Formal Notice of Violation issued
253255085006	November 12, 2024	Informal	State Public Notification requested
253255087006	November 21, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 2432550 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2024 · period end September 30, 2024 · first reported February 19, 2025 · EPA return-to-compliance field September 30, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
253255084006	November 12, 2024	Informal	State Formal Notice of Violation issued
253255085006	November 12, 2024	Informal	State Public Notification requested
253255087006	November 21, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2507638 · Nitrite · Nitrate Rule

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 19, 2025 · EPA return-to-compliance field December 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25076381003	February 12, 2025	Informal	State Public Notification requested
25076383	February 12, 2025	Informal	State Formal Notice of Violation issued
25076382003	February 13, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2309707 · Nitrite · Nitrate Rule

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 15, 2023 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
230970678001	February 9, 2023	Informal	State Violation/Reminder Notice
230970680001	April 13, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2309706 · Nitrate · Nitrate Rule

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 15, 2023 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
230970678001	February 9, 2023	Informal	State Violation/Reminder Notice
230970680001	April 13, 2023	Resolving	State Compliance achieved

Other or unclassified · Resolved

Consumer Confidence Report Complete Failure to ReportViolation 2128808 · Consumer Confidence Rule · Consumer Confidence Rule

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

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
212880866001	August 31, 2021	Informal	State Violation/Reminder Notice
212880868001	August 31, 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