PA5030002 · Pennsylvania
DAYTON MUNI WATER DEPT
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 20
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 20
Counties listed by EPA · Armstrong 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 19 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 364 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Archived
Monitoring, RegularViolation 2607030 · Radium-228 · Radionuclides and Revised Rad RuleNoncompliance 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 26070306001 February 11, 2026 Informal State Formal Notice of Violation issued 26070307001 February 11, 2026 Informal State Public Notification requested 26070308001 July 15, 2026 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 2531332 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance 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 26313321006 November 12, 2025 Informal State Public Notification requested 26313326 November 12, 2025 Informal State Formal Notice of Violation issued 26313322006 December 4, 2025 Resolving State Compliance achieved 26313323006 July 15, 2026 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)Violation 2511464 · Groundwater Rule · Ground Water RuleNoncompliance period start January 1, 2025 · period end January 31, 2025 · first reported June 3, 2025 · EPA return-to-compliance field January 31, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 25114645 March 14, 2025 Informal State Formal Notice of Violation issued 25114643005 March 18, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)Violation 2407451 · Groundwater Rule · Ground Water RuleNoncompliance period start December 1, 2023 · period end December 31, 2023 · first reported February 23, 2024 · EPA return-to-compliance field December 31, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 240745184001 February 6, 2024 Informal State Violation/Reminder Notice 240745186001 February 6, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 2338182 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2023 · period end September 30, 2023 · first reported November 16, 2023 · EPA return-to-compliance field September 30, 2023
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 243818178014 November 1, 2023 Informal State Violation/Reminder Notice 253818179014 June 26, 2025 Informal State Public Notification requested 253818180014 June 26, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 2338181 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2023 · period end September 30, 2023 · first reported November 16, 2023 · EPA return-to-compliance field September 30, 2023
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 243818178014 November 1, 2023 Informal State Violation/Reminder Notice 253818179014 June 26, 2025 Informal State Public Notification requested 253818180014 June 26, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)Violation 2315209 · Groundwater Rule · Ground Water RuleNoncompliance period start January 1, 2023 · period end January 31, 2023 · first reported May 22, 2023 · EPA return-to-compliance field January 31, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 231520978001 March 14, 2023 Informal State Violation/Reminder Notice 231520980001 March 27, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)Violation 2130511 · Groundwater Rule · Ground Water RuleNoncompliance period start August 1, 2021 · period end August 31, 2021 · first reported November 19, 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 223051166001 October 13, 2021 Informal State Violation/Reminder Notice 223051168001 January 27, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 2209012 · Thallium, Total · Inorganic ChemicalsNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported May 23, 2022 · EPA return-to-compliance field December 31, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 220900172001 March 28, 2022 Informal State Violation/Reminder Notice 220900173001 March 28, 2022 Informal State Public Notification requested 220900174001 March 29, 2022 Resolving State Compliance achieved 240900175001 March 14, 2024 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 2209011 · Beryllium, Total · Inorganic ChemicalsNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported May 23, 2022 · EPA return-to-compliance field December 31, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 220900172001 March 28, 2022 Informal State Violation/Reminder Notice 220900173001 March 28, 2022 Informal State Public Notification requested 220900174001 March 29, 2022 Resolving State Compliance achieved 240900175001 March 14, 2024 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 2209010 · Antimony, Total · Inorganic ChemicalsNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported May 23, 2022 · EPA return-to-compliance field December 31, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 220900172001 March 28, 2022 Informal State Violation/Reminder Notice 220900173001 March 28, 2022 Informal State Public Notification requested 220900174001 March 29, 2022 Resolving State Compliance achieved 240900175001 March 14, 2024 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 2209009 · Selenium · Inorganic ChemicalsNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported May 23, 2022 · EPA return-to-compliance field December 31, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 220900172001 March 28, 2022 Informal State Violation/Reminder Notice 220900173001 March 28, 2022 Informal State Public Notification requested 220900174001 March 29, 2022 Resolving State Compliance achieved 240900175001 March 14, 2024 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 2209008 · Nickel · Inorganic ChemicalsNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported May 23, 2022 · EPA return-to-compliance field December 31, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 220900172001 March 28, 2022 Informal State Violation/Reminder Notice 220900173001 March 28, 2022 Informal State Public Notification requested 220900174001 March 29, 2022 Resolving State Compliance achieved 240900175001 March 14, 2024 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 2209007 · Mercury · Inorganic ChemicalsNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported May 23, 2022 · EPA return-to-compliance field December 31, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 220900172001 March 28, 2022 Informal State Violation/Reminder Notice 220900173001 March 28, 2022 Informal State Public Notification requested 220900174001 March 29, 2022 Resolving State Compliance achieved 240900175001 March 14, 2024 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 2209006 · Fluoride · Inorganic ChemicalsNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported May 23, 2022 · EPA return-to-compliance field December 31, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 220900172001 March 28, 2022 Informal State Violation/Reminder Notice 220900173001 March 28, 2022 Informal State Public Notification requested 220900174001 March 29, 2022 Resolving State Compliance achieved 240900175001 March 14, 2024 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 2209005 · CYANIDE · Inorganic ChemicalsNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported May 23, 2022 · EPA return-to-compliance field December 31, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 220900172001 March 28, 2022 Informal State Violation/Reminder Notice 220900173001 March 28, 2022 Informal State Public Notification requested 220900174001 March 29, 2022 Resolving State Compliance achieved 240900175001 March 14, 2024 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 2209004 · Chromium · Inorganic ChemicalsNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported May 23, 2022 · EPA return-to-compliance field December 31, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 220900172001 March 28, 2022 Informal State Violation/Reminder Notice 220900173001 March 28, 2022 Informal State Public Notification requested 220900174001 March 29, 2022 Resolving State Compliance achieved 240900175001 March 14, 2024 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 2209003 · Cadmium · Inorganic ChemicalsNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported May 23, 2022 · EPA return-to-compliance field December 31, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 220900172001 March 28, 2022 Informal State Violation/Reminder Notice 220900173001 March 28, 2022 Informal State Public Notification requested 220900174001 March 29, 2022 Resolving State Compliance achieved 240900175001 March 14, 2024 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 2209002 · Barium · Inorganic ChemicalsNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported May 23, 2022 · EPA return-to-compliance field December 31, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 220900172001 March 28, 2022 Informal State Violation/Reminder Notice 220900173001 March 28, 2022 Informal State Public Notification requested 220900174001 March 29, 2022 Resolving State Compliance achieved 240900175001 March 14, 2024 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 2209001 · Arsenic · Arsenic RuleNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported May 23, 2022 · EPA return-to-compliance field December 31, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 220900172001 March 28, 2022 Informal State Violation/Reminder Notice 220900173001 March 28, 2022 Informal State Public Notification requested 220900174001 March 29, 2022 Resolving State Compliance achieved 240900175001 March 14, 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