PA5020055 · Pennsylvania

TARENTUM BORO WATER DEPT

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

Violation records shown: 25
EPA health-based flag: 6
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 16

Counties listed by EPA · Allegheny 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 17 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 30 days. The interval uses the reporting periods and dates on file.

Other or unclassified · Resolved

Public Notification Violation for NPDWR ViolationViolation 2620124 · Public Notice · Public Notice Rule and Revised PN Rule

Noncompliance period start August 10, 2026 · period end August 21, 2026 · first reported August 26, 2026 · EPA return-to-compliance field August 21, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26201246029	August 21, 2026	Informal	State Formal Notice of Violation issued
26201247029	August 21, 2026	Resolving	State Compliance achieved

Other or unclassified · Resolved

Public Notification Violation for NPDWR ViolationViolation 2614335 · Public Notice · Public Notice Rule and Revised PN Rule

Noncompliance period start May 11, 2026 · period end July 21, 2026 · first reported May 19, 2026 · EPA return-to-compliance field July 21, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26143347018	May 11, 2026	Informal	State Formal Notice of Violation issued
26015158001	July 21, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Archived

Monitoring and Reporting (DBP)Violation 2621184 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start April 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
26211846024	August 13, 2026	Informal	State Formal Notice of Violation issued
26211847024	August 13, 2026	Informal	State Public Notification requested

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 2620123 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26201236022	August 7, 2026	Informal	State Violation/Reminder Notice
26201237022	August 7, 2026	Informal	State Public Notification requested
26201238022	August 21, 2026	Informal	State Public Notification received

Other or unclassified · Resolved

Public Notification Violation for NPDWR ViolationViolation 2607013 · Public Notice · Public Notice Rule and Revised PN Rule

Noncompliance period start February 10, 2026 · period end July 21, 2026 · first reported May 19, 2026 · EPA return-to-compliance field July 21, 2026

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26070136030	April 6, 2026	Informal	State Violation/Reminder Notice
26070137030	April 6, 2026	Informal	State Public Notification requested
26070138030	April 6, 2026	Informal	State Public Notification received
26070139030	April 6, 2026	Resolving	State Compliance achieved
26015158001	July 21, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Archived

Monitoring and Reporting (DBP)Violation 2615115 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2026 · period end March 31, 2026 · first reported May 19, 2026 · EPA return-to-compliance field March 31, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26151156021	May 13, 2026	Informal	State Formal Notice of Violation issued
26151157021	May 13, 2026	Informal	State Public Notification requested

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 2614334 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2026 · period end March 31, 2026 · first reported May 19, 2026 · EPA return-to-compliance field March 31, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26143346018	April 24, 2026	Informal	State Violation/Reminder Notice
26143347018	May 11, 2026	Informal	State Formal Notice of Violation issued
26143348018	May 11, 2026	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, Turbidity (Enhanced SWTR)Violation 2610666 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26106636014	March 11, 2026	Informal	State Formal Notice of Violation issued
26106637014	March 11, 2026	Informal	State Public Notification requested
26015158001	July 21, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 2610664 · Surface Water Treatment Rule · Surface Water Treatment 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26106636014	March 11, 2026	Informal	State Formal Notice of Violation issued
26106637014	March 11, 2026	Informal	State Public Notification requested
26015158001	July 21, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 2610663 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26106636014	March 11, 2026	Informal	State Formal Notice of Violation issued
26106637014	March 11, 2026	Informal	State Public Notification requested
26015158001	July 21, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 2607010 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start December 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
26070096009	February 11, 2026	Informal	State Formal Notice of Violation issued
26070097009	February 11, 2026	Informal	State Public Notification requested
26015158001	July 21, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 2607009 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start December 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
26070096009	February 11, 2026	Informal	State Formal Notice of Violation issued
26070097009	February 11, 2026	Informal	State Public Notification requested
26015158001	July 21, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Turbidity (Enhanced SWTR)Violation 2602991 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

Noncompliance period start November 1, 2025 · period end November 30, 2025 · first reported March 11, 2026 · EPA return-to-compliance field November 30, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26029886005	January 7, 2026	Informal	State Formal Notice of Violation issued
26029887005	January 7, 2026	Informal	State Public Notification requested
26015158001	July 21, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 2602989 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start November 1, 2025 · period end November 30, 2025 · first reported March 11, 2026 · EPA return-to-compliance field November 30, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26029886005	January 7, 2026	Informal	State Formal Notice of Violation issued
26029887005	January 7, 2026	Informal	State Public Notification requested
26015158001	July 21, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 2602988 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start November 1, 2025 · period end November 30, 2025 · first reported March 11, 2026 · EPA return-to-compliance field November 30, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26029886005	January 7, 2026	Informal	State Formal Notice of Violation issued
26029887005	January 7, 2026	Informal	State Public Notification requested
26015158001	July 21, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Archived

Monitoring and Reporting (DBP)Violation 2608627 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts 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
26086276013	February 12, 2026	Informal	State Formal Notice of Violation issued
26086277013	February 12, 2026	Informal	State Public Notification requested

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 2607012 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts 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
26070096009	February 11, 2026	Informal	State Formal Notice of Violation issued
26070097009	February 11, 2026	Informal	State Public Notification requested
26070128011	May 20, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, Turbidity (Enhanced SWTR)Violation 2601518 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26015156001	December 10, 2025	Informal	State Formal Notice of Violation issued
26015157001	December 10, 2025	Informal	State Public Notification requested
26015158001	July 21, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 2601516 · Surface Water Treatment Rule · Surface Water Treatment Rule

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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26015156001	December 10, 2025	Informal	State Formal Notice of Violation issued
26015157001	December 10, 2025	Informal	State Public Notification requested
26015158001	July 21, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 2601515 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26015156001	December 10, 2025	Informal	State Formal Notice of Violation issued
26015157001	December 10, 2025	Informal	State Public Notification requested
26015158001	July 21, 2026	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 2523455 · 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
25234551004	July 30, 2025	Informal	State Public Notification requested
25234552004	July 30, 2025	Informal	State Public Notification received
25234553004	July 30, 2025	Resolving	State Compliance achieved
25234554	July 30, 2025	Informal	State Formal Notice of Violation issued

EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 2516298 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start January 1, 2025 · period end March 31, 2025 · first reported June 16, 2025 · EPA return-to-compliance field March 31, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
25162983 May 27, 2025 Informal State Formal Notice of Violation issued

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25162983	May 27, 2025	Informal	State Formal Notice of Violation issued

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 2507397 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start October 1, 2024 · period end December 31, 2024 · first reported August 26, 2026 · 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
26073971	August 7, 2026	Informal	State Formal Notice of Violation issued
26073971001	August 7, 2026	Informal	State Public Notification requested
26073972001	August 7, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2407429 · Dalapon · Synthetic Organic Chemicals

Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported February 23, 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
240742984002	February 13, 2024	Informal	State Formal Notice of Violation issued
240742985002	February 13, 2024	Informal	State Public Notification requested
240742986002	February 26, 2024	Resolving	State Compliance achieved
240742987002	February 26, 2024	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 2263766 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2022 · period end September 30, 2022 · first reported November 21, 2022 · EPA return-to-compliance field September 30, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
236376672001	November 14, 2022	Informal	State Formal Notice of Violation issued
236376673001	November 14, 2022	Informal	State Public Notification requested
266376674001	December 4, 2025	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