PA7360164 · Pennsylvania
NORTHWESTERN LANCASTER CO AUTH
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 4
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 3
Counties listed by EPA · Lancaster 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 4 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 and Reporting (DBP)Violation 2614840 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2026 · period end March 31, 2026 · first reported May 19, 2026 · EPA return-to-compliance field March 31, 2026
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 26148406001 May 12, 2026 Informal State Formal Notice of Violation issued 26148407001 May 12, 2026 Informal State Public Notification requested 26148408001 July 15, 2026 Informal State Public Notification received 26148409001 July 15, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 2532000 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2025 · period end September 30, 2025 · first reported March 9, 2026 · EPA return-to-compliance field September 30, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 26320002 October 29, 2025 Informal State Violation/Reminder Notice 26320002002 October 29, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 2516850 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2025 · period end March 31, 2025 · first reported June 3, 2025 · EPA return-to-compliance field March 31, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 25168501 May 13, 2025 Informal State Violation/Reminder Notice 25168502001 May 13, 2025 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 1909941 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start December 11, 2018 · period end January 30, 2019 · first reported November 22, 2024 · EPA return-to-compliance field January 30, 2019
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 190994154001 January 30, 2019 Informal State Public Notification received 190994155001 January 30, 2019 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