PA2590051 · Pennsylvania

NELSON TOWNSHIP AUTHORITY

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

Violation records shown: 31
EPA health-based flag: 7
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 16

Counties listed by EPA · Tioga 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 30 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 89 days. The interval uses the reporting periods and dates on file.

Monitoring or reporting · Resolved

Monitoring, Turbidity (Enhanced SWTR)Violation 2530212 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

Noncompliance period start September 1, 2025 · period end September 30, 2025 · first reported March 9, 2026 · EPA return-to-compliance field September 30, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26302121006	November 12, 2025	Informal	State Public Notification requested
26302126	November 12, 2025	Informal	State Formal Notice of Violation issued
26264501005	February 20, 2026	Informal	State Public Notification received
26264502005	February 20, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Source Water (GWR)Violation 2526450 · E. COLI · Ground Water Rule

Noncompliance period start July 15, 2025 · period end February 20, 2026 · first reported September 16, 2025 · EPA return-to-compliance field February 20, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25264505	August 29, 2025	Informal	State Violation/Reminder Notice
26264501005	February 20, 2026	Informal	State Public Notification received
26264502005	February 20, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Source Water (GWR)Violation 2517887 · E. COLI · Ground Water Rule

Noncompliance period start April 8, 2025 · period end May 22, 2025 · first reported June 16, 2025 · EPA return-to-compliance field May 22, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25178871004	May 22, 2025	Informal	State Public Notification requested
25178872004	May 22, 2025	Informal	State Public Notification received
25178873004	May 22, 2025	Resolving	State Compliance achieved
25178874	May 22, 2025	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 2515207 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start March 1, 2025 · period end March 31, 2025 · first reported June 3, 2025 · EPA return-to-compliance field March 31, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25152071	May 14, 2025	Informal	State Formal Notice of Violation issued
25152071001	May 14, 2025	Informal	State Public Notification requested
25152072001	July 2, 2025	Informal	State Public Notification received
25152073001	July 2, 2025	Resolving	State Compliance achieved

Other or unclassified · Resolved

Public Notification Violation for NPDWR ViolationViolation 2422209 · Public Notice · Public Notice Rule and Revised PN Rule

Noncompliance period start July 29, 2024 · period end July 29, 2024 · first reported August 16, 2024 · EPA return-to-compliance field July 29, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
242220884005	July 29, 2024	Informal	State Violation/Reminder Notice
242220885005	July 29, 2024	Informal	State Public Notification requested
242220886005	July 29, 2024	Informal	State Public Notification received
242220887005	July 29, 2024	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 2422208 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start April 1, 2024 · period end June 30, 2024 · first reported August 16, 2024 · EPA return-to-compliance field June 30, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
242220884005	July 29, 2024	Informal	State Violation/Reminder Notice
242220885005	July 29, 2024	Informal	State Public Notification requested
242220886005	July 29, 2024	Informal	State Public Notification received
242220887005	July 29, 2024	Resolving	State Compliance achieved

Other or unclassified · Resolved

Public Notification Violation for NPDWR ViolationViolation 2409912 · Public Notice · Public Notice Rule and Revised PN Rule

Noncompliance period start February 2, 2024 · period end February 5, 2024 · first reported February 23, 2024 · EPA return-to-compliance field February 5, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
240991184001	February 2, 2024	Informal	State Formal Notice of Violation issued
240991185001	February 2, 2024	Informal	State Public Notification requested
240991186001	February 5, 2024	Informal	State Public Notification received
240991187001	February 5, 2024	Resolving	State Compliance achieved

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 2411216 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start January 11, 2024 · period end February 28, 2024 · first reported March 25, 2024 · EPA return-to-compliance field February 28, 2024

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
241121584002 February 28, 2024 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 2411215 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start January 11, 2024 · period end February 28, 2024 · first reported March 25, 2024 · EPA return-to-compliance field February 28, 2024

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
241121584002 February 28, 2024 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
241121584002	February 28, 2024	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
241121584002	February 28, 2024	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Treatment Technique Precursor RemovalViolation 2409911 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts Rule

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
240991184001	February 2, 2024	Informal	State Formal Notice of Violation issued
240991185001	February 2, 2024	Informal	State Public Notification requested
240991186001	February 5, 2024	Informal	State Public Notification received
240991187001	February 5, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 2333866 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start August 1, 2023 · period end August 31, 2023 · first reported November 16, 2023 · EPA return-to-compliance field August 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
243386678004	October 10, 2023	Informal	State Formal Notice of Violation issued
243386679004	October 10, 2023	Informal	State Public Notification requested
243386680004	February 14, 2024	Informal	State Public Notification received
243386681004	February 14, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 2333865 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start August 1, 2023 · period end August 31, 2023 · first reported November 16, 2023 · EPA return-to-compliance field August 31, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
243386578003	October 10, 2023	Informal	State Violation/Reminder Notice
243386580003	December 5, 2023	Resolving	State Compliance achieved

Other or unclassified · Resolved

Public Notification Violation for NPDWR ViolationViolation 2232608 · Public Notice · Public Notice Rule and Revised PN Rule

Noncompliance period start August 10, 2022 · period end July 10, 2023 · first reported August 18, 2023 · EPA return-to-compliance field July 10, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
231224872007	July 10, 2023	Informal	State Violation/Reminder Notice
231224873007	July 10, 2023	Informal	State Public Notification received
231224874007	July 10, 2023	Resolving	State Compliance achieved

Other or unclassified · Resolved

Public Notification Violation for NPDWR ViolationViolation 2222098 · Public Notice · Public Notice Rule and Revised PN Rule

Noncompliance period start May 11, 2022 · period end July 10, 2023 · first reported August 18, 2023 · EPA return-to-compliance field July 10, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
231224872007	July 10, 2023	Informal	State Violation/Reminder Notice
231224873007	July 10, 2023	Informal	State Public Notification received
231224874007	July 10, 2023	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Treatment Technique Precursor RemovalViolation 2232607 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start April 1, 2022 · period end June 30, 2022 · first reported June 15, 2023 · EPA return-to-compliance field June 30, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
231224772001	May 22, 2023	Informal	State Formal Notice of Violation issued
231224773001	May 22, 2023	Informal	State Public Notification requested
231224774001	May 22, 2023	Resolving	State Compliance achieved

Other or unclassified · Resolved

Public Notification Violation for NPDWR ViolationViolation 2212248 · Public Notice · Public Notice Rule and Revised PN Rule

Noncompliance period start February 10, 2022 · period end July 10, 2023 · first reported August 18, 2023 · EPA return-to-compliance field July 10, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
231224872007	July 10, 2023	Informal	State Violation/Reminder Notice
231224873007	July 10, 2023	Informal	State Public Notification received
231224874007	July 10, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2306335 · 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

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
230633478001	February 9, 2023	Informal	State Formal Notice of Violation issued
230633479001	February 9, 2023	Informal	State Public Notification requested
230633480001	March 27, 2023	Informal	State Violation/Reminder Notice
230633481001	March 27, 2023	Informal	State Public Notification requested
230633482001	March 27, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2306334 · 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

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
230633478001	February 9, 2023	Informal	State Formal Notice of Violation issued
230633479001	February 9, 2023	Informal	State Public Notification requested
230633480001	March 27, 2023	Informal	State Violation/Reminder Notice
230633481001	March 27, 2023	Informal	State Public Notification requested
230633482001	March 27, 2023	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Treatment Technique Precursor RemovalViolation 2222097 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts Rule

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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
231224772001	May 22, 2023	Informal	State Formal Notice of Violation issued
231224773001	May 22, 2023	Informal	State Public Notification requested
231224774001	May 22, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 2219788 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2022 · period end March 31, 2022 · first reported August 18, 2023 · EPA return-to-compliance field March 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
231224872007	July 10, 2023	Informal	State Violation/Reminder Notice
231224874007	July 10, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 2219787 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2022 · period end March 31, 2022 · first reported August 18, 2023 · EPA return-to-compliance field March 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
231224872007	July 10, 2023	Informal	State Violation/Reminder Notice
231224874007	July 10, 2023	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Treatment Technique Precursor RemovalViolation 2212247 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start October 1, 2021 · period end December 31, 2021 · first reported June 15, 2023 · EPA return-to-compliance field December 31, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
231224772001	May 22, 2023	Informal	State Formal Notice of Violation issued
231224773001	May 22, 2023	Informal	State Public Notification requested
231224774001	May 22, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved
Monitoring, Turbidity (Enhanced SWTR)Violation 2129966 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Noncompliance period start August 1, 2021 · period end August 31, 2021 · first reported November 19, 2021 · EPA return-to-compliance field August 31, 2021

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
222996267001 October 7, 2021 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 2129965 · Surface Water Treatment Rule · Surface Water Treatment Rule
Noncompliance period start August 1, 2021 · period end August 31, 2021 · first reported November 19, 2021 · EPA return-to-compliance field August 31, 2021

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
222996267001 October 7, 2021 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 2129962 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start August 1, 2021 · period end August 31, 2021 · first reported November 19, 2021 · EPA return-to-compliance field August 31, 2021

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
222996267001 October 7, 2021 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
222996267001	October 7, 2021	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
222996267001	October 7, 2021	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
222996267001	October 7, 2021	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Treatment Technique Precursor RemovalViolation 2135333 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported November 19, 2021 · EPA return-to-compliance field September 30, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
223533366006	October 28, 2021	Informal	State Violation/Reminder Notice
223533367006	October 28, 2021	Informal	State Public Notification requested
223533368006	November 18, 2021	Informal	State Public Notification received
223533369006	November 18, 2021	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 2115942 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2021 · period end March 31, 2021 · first reported June 16, 2021 · EPA return-to-compliance field March 31, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
211594166002	May 27, 2021	Informal	State Violation/Reminder Notice
211594167002	May 27, 2021	Informal	State Public Notification requested
211594168002	May 27, 2021	Informal	State Public Notification received
211594169002	May 27, 2021	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 2115941 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2021 · period end March 31, 2021 · first reported June 16, 2021 · EPA return-to-compliance field March 31, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
211594166002	May 27, 2021	Informal	State Violation/Reminder Notice
211594167002	May 27, 2021	Informal	State Public Notification requested
211594168002	May 27, 2021	Informal	State Public Notification received
211594169002	May 27, 2021	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Turbidity (Enhanced SWTR)Violation 2111572 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

Noncompliance period start January 1, 2021 · period end January 31, 2021 · first reported March 4, 2021 · EPA return-to-compliance field January 31, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
211157266001	February 26, 2021	Informal	State Violation/Reminder Notice
211157267001	February 26, 2021	Informal	State Public Notification requested
211157268001	February 26, 2021	Informal	State Public Notification received
211157269001	February 26, 2021	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 2041160 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2020 · period end September 30, 2020 · first reported March 4, 2021 · EPA return-to-compliance field September 30, 2020

8 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
214116060004	December 22, 2020	Informal	State Formal Notice of Violation issued
214116060006	December 22, 2020	Informal	State Formal Notice of Violation issued
214116061004	December 22, 2020	Informal	State Public Notification requested
214116061006	December 22, 2020	Informal	State Public Notification requested
214116062004	December 22, 2020	Informal	State Public Notification received
214116062006	December 22, 2020	Informal	State Public Notification received
230704265001	December 27, 2022	Resolving	State Compliance achieved
234116063004	December 27, 2022	Informal	State Bilateral Compliance Agreement signed

Other or unclassified · Unaddressed by formal action
Public Notification Violation for NPDWR ViolationViolation 1225422 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start April 11, 2012 · first reported February 25, 2015
No linked action row appears in the records shown.

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