NJ0233001 · New Jersey
MAHWAH WATER DEPARTMENT
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 22
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 22
Counties listed by EPA · Bergen County, New Jersey
Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.
Violations and what followed
Among 22 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 922 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Monitoring, RegularViolation 19481 · Styrene · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end July 11, 2025 · first reported March 27, 2026 · EPA return-to-compliance field July 11, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7322 July 11, 2025 Resolving State Compliance achieved 7320 August 14, 2025 Informal State Formal Notice of Violation issued 7321 August 14, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 19480 · Ethylbenzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end July 11, 2025 · first reported March 27, 2026 · EPA return-to-compliance field July 11, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7322 July 11, 2025 Resolving State Compliance achieved 7320 August 14, 2025 Informal State Formal Notice of Violation issued 7321 August 14, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 19479 · Toluene · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end July 11, 2025 · first reported March 27, 2026 · EPA return-to-compliance field July 11, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7322 July 11, 2025 Resolving State Compliance achieved 7320 August 14, 2025 Informal State Formal Notice of Violation issued 7321 August 14, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 19478 · Benzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end July 11, 2025 · first reported March 27, 2026 · EPA return-to-compliance field July 11, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7322 July 11, 2025 Resolving State Compliance achieved 7320 August 14, 2025 Informal State Formal Notice of Violation issued 7321 August 14, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 19477 · CHLOROBENZENE · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end July 11, 2025 · first reported March 27, 2026 · EPA return-to-compliance field July 11, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7322 July 11, 2025 Resolving State Compliance achieved 7320 August 14, 2025 Informal State Formal Notice of Violation issued 7321 August 14, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 19476 · Tetrachloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end July 11, 2025 · first reported March 27, 2026 · EPA return-to-compliance field July 11, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7322 July 11, 2025 Resolving State Compliance achieved 7320 August 14, 2025 Informal State Formal Notice of Violation issued 7321 August 14, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 19475 · 1,1,2-Trichloroethane · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end July 11, 2025 · first reported March 27, 2026 · EPA return-to-compliance field July 11, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7322 July 11, 2025 Resolving State Compliance achieved 7320 August 14, 2025 Informal State Formal Notice of Violation issued 7321 August 14, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 19474 · Trichloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end July 11, 2025 · first reported March 27, 2026 · EPA return-to-compliance field July 11, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7322 July 11, 2025 Resolving State Compliance achieved 7320 August 14, 2025 Informal State Formal Notice of Violation issued 7321 August 14, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 19473 · 1,2-Dichloropropane · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end July 11, 2025 · first reported March 27, 2026 · EPA return-to-compliance field July 11, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7322 July 11, 2025 Resolving State Compliance achieved 7320 August 14, 2025 Informal State Formal Notice of Violation issued 7321 August 14, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 19472 · Carbon tetrachloride · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end July 11, 2025 · first reported March 27, 2026 · EPA return-to-compliance field July 11, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7322 July 11, 2025 Resolving State Compliance achieved 7320 August 14, 2025 Informal State Formal Notice of Violation issued 7321 August 14, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 19471 · 1,1,1-Trichloroethane · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end July 11, 2025 · first reported March 27, 2026 · EPA return-to-compliance field July 11, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7322 July 11, 2025 Resolving State Compliance achieved 7320 August 14, 2025 Informal State Formal Notice of Violation issued 7321 August 14, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 19470 · 1,2-Dichloroethane · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end July 11, 2025 · first reported March 27, 2026 · EPA return-to-compliance field July 11, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7322 July 11, 2025 Resolving State Compliance achieved 7320 August 14, 2025 Informal State Formal Notice of Violation issued 7321 August 14, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 19469 · trans-1,2-Dichloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end July 11, 2025 · first reported March 27, 2026 · EPA return-to-compliance field July 11, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7322 July 11, 2025 Resolving State Compliance achieved 7320 August 14, 2025 Informal State Formal Notice of Violation issued 7321 August 14, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 19468 · 1,1-Dichloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end July 11, 2025 · first reported March 27, 2026 · EPA return-to-compliance field July 11, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7322 July 11, 2025 Resolving State Compliance achieved 7320 August 14, 2025 Informal State Formal Notice of Violation issued 7321 August 14, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 19467 · Vinyl chloride · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end July 11, 2025 · first reported March 27, 2026 · EPA return-to-compliance field July 11, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7322 July 11, 2025 Resolving State Compliance achieved 7320 August 14, 2025 Informal State Formal Notice of Violation issued 7321 August 14, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 19466 · p-Dichlorobenzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end July 11, 2025 · first reported March 27, 2026 · EPA return-to-compliance field July 11, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7322 July 11, 2025 Resolving State Compliance achieved 7320 August 14, 2025 Informal State Formal Notice of Violation issued 7321 August 14, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 19465 · o-Dichlorobenzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end July 11, 2025 · first reported March 27, 2026 · EPA return-to-compliance field July 11, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7322 July 11, 2025 Resolving State Compliance achieved 7320 August 14, 2025 Informal State Formal Notice of Violation issued 7321 August 14, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 19464 · DICHLOROMETHANE · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end July 11, 2025 · first reported March 27, 2026 · EPA return-to-compliance field July 11, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7322 July 11, 2025 Resolving State Compliance achieved 7320 August 14, 2025 Informal State Formal Notice of Violation issued 7321 August 14, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 19463 · Xylenes, Total · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end July 11, 2025 · first reported March 27, 2026 · EPA return-to-compliance field July 11, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7322 July 11, 2025 Resolving State Compliance achieved 7320 August 14, 2025 Informal State Formal Notice of Violation issued 7321 August 14, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 19462 · cis-1,2-Dichloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end July 11, 2025 · first reported March 27, 2026 · EPA return-to-compliance field July 11, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7322 July 11, 2025 Resolving State Compliance achieved 7320 August 14, 2025 Informal State Formal Notice of Violation issued 7321 August 14, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 19461 · 1,2,4-Trichlorobenzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end July 11, 2025 · first reported March 27, 2026 · EPA return-to-compliance field July 11, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7322 July 11, 2025 Resolving State Compliance achieved 7320 August 14, 2025 Informal State Formal Notice of Violation issued 7321 August 14, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Water Quality Parameter M/RViolation 19434 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start July 1, 2020 · period end December 3, 2020 · first reported April 13, 2021 · EPA return-to-compliance field December 3, 2020
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7270 December 3, 2020 Resolving State Compliance achieved 7268 February 10, 2021 Informal State Formal Notice of Violation issued
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