PA7360024 · Pennsylvania

MAGIC CHEF MHP

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

Violation records shown: 37
EPA health-based flag: 2
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 34

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 36 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 of Treatment (SWTR-Unfilt/GWR)Violation 2616775 · Groundwater Rule · Ground Water Rule

Noncompliance period start April 1, 2026 · period end April 30, 2026 · first reported June 15, 2026 · EPA return-to-compliance field April 30, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26167756001	June 8, 2026	Informal	State Formal Notice of Violation issued
26167757001	June 8, 2026	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2525041 · Chlordane · Synthetic Organic Chemicals

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25250131	August 7, 2025	Informal	State Formal Notice of Violation issued
25250131001	August 7, 2025	Informal	State Public Notification requested
26250132001	February 7, 2026	Informal	State Public Notification received
26250133001	February 7, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2525040 · ETHYLENE DIBROMIDE · Synthetic Organic Chemicals

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25250131	August 7, 2025	Informal	State Formal Notice of Violation issued
25250131001	August 7, 2025	Informal	State Public Notification requested
26250132001	February 7, 2026	Informal	State Public Notification received
26250133001	February 7, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2525039 · 1,2-DIBROMO-3-CHLOROPROPANE · Synthetic Organic Chemicals

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25250131	August 7, 2025	Informal	State Formal Notice of Violation issued
25250131001	August 7, 2025	Informal	State Public Notification requested
26250132001	February 7, 2026	Informal	State Public Notification received
26250133001	February 7, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2525038 · Total Polychlorinated Biphenyls (PCB) · Synthetic Organic Chemicals

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25250131	August 7, 2025	Informal	State Formal Notice of Violation issued
25250131001	August 7, 2025	Informal	State Public Notification requested
26250132001	February 7, 2026	Informal	State Public Notification received
26250133001	February 7, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2525037 · Pentachlorophenol · Synthetic Organic Chemicals

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25250131	August 7, 2025	Informal	State Formal Notice of Violation issued
25250131001	August 7, 2025	Informal	State Public Notification requested
26250132001	February 7, 2026	Informal	State Public Notification received
26250133001	February 7, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2525036 · Benzo(a)pyrene · Synthetic Organic Chemicals

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25250131	August 7, 2025	Informal	State Formal Notice of Violation issued
25250131001	August 7, 2025	Informal	State Public Notification requested
26250132001	February 7, 2026	Informal	State Public Notification received
26250133001	February 7, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2525035 · HEXACHLOROBENZENE · Synthetic Organic Chemicals

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25250131	August 7, 2025	Informal	State Formal Notice of Violation issued
25250131001	August 7, 2025	Informal	State Public Notification requested
26250132001	February 7, 2026	Informal	State Public Notification received
26250133001	February 7, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2525034 · 2,4,5-TP · Synthetic Organic Chemicals

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25250131	August 7, 2025	Informal	State Formal Notice of Violation issued
25250131001	August 7, 2025	Informal	State Public Notification requested
26250132001	February 7, 2026	Informal	State Public Notification received
26250133001	February 7, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2525033 · 2,4-D · Synthetic Organic Chemicals

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25250131	August 7, 2025	Informal	State Formal Notice of Violation issued
25250131001	August 7, 2025	Informal	State Public Notification requested
26250132001	February 7, 2026	Informal	State Public Notification received
26250133001	February 7, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2525032 · Heptachlor epoxide · Synthetic Organic Chemicals

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25250131	August 7, 2025	Informal	State Formal Notice of Violation issued
25250131001	August 7, 2025	Informal	State Public Notification requested
26250132001	February 7, 2026	Informal	State Public Notification received
26250133001	February 7, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2525031 · Heptachlor · Synthetic Organic Chemicals

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25250131	August 7, 2025	Informal	State Formal Notice of Violation issued
25250131001	August 7, 2025	Informal	State Public Notification requested
26250132001	February 7, 2026	Informal	State Public Notification received
26250133001	February 7, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2525030 · LASSO · Synthetic Organic Chemicals

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25250131	August 7, 2025	Informal	State Formal Notice of Violation issued
25250131001	August 7, 2025	Informal	State Public Notification requested
26250132001	February 7, 2026	Informal	State Public Notification received
26250133001	February 7, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2525029 · Atrazine · Synthetic Organic Chemicals

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25250131	August 7, 2025	Informal	State Formal Notice of Violation issued
25250131001	August 7, 2025	Informal	State Public Notification requested
26250132001	February 7, 2026	Informal	State Public Notification received
26250133001	February 7, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2525028 · Carbofuran · Synthetic Organic Chemicals

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25250131	August 7, 2025	Informal	State Formal Notice of Violation issued
25250131001	August 7, 2025	Informal	State Public Notification requested
26250132001	February 7, 2026	Informal	State Public Notification received
26250133001	February 7, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2525027 · Hexachlorocyclopentadiene · Synthetic Organic Chemicals

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25250131	August 7, 2025	Informal	State Formal Notice of Violation issued
25250131001	August 7, 2025	Informal	State Public Notification requested
26250132001	February 7, 2026	Informal	State Public Notification received
26250133001	February 7, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2525026 · Dinoseb · Synthetic Organic Chemicals

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25250131	August 7, 2025	Informal	State Formal Notice of Violation issued
25250131001	August 7, 2025	Informal	State Public Notification requested
26250132001	February 7, 2026	Informal	State Public Notification received
26250133001	February 7, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2525025 · Picloram · Synthetic Organic Chemicals

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25250131	August 7, 2025	Informal	State Formal Notice of Violation issued
25250131001	August 7, 2025	Informal	State Public Notification requested
26250132001	February 7, 2026	Informal	State Public Notification received
26250133001	February 7, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2525024 · Di(2-ethylhexyl) phthalate · Synthetic Organic Chemicals

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25250131	August 7, 2025	Informal	State Formal Notice of Violation issued
25250131001	August 7, 2025	Informal	State Public Notification requested
26250132001	February 7, 2026	Informal	State Public Notification received
26250133001	February 7, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2525023 · Simazine · Synthetic Organic Chemicals

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25250131	August 7, 2025	Informal	State Formal Notice of Violation issued
25250131001	August 7, 2025	Informal	State Public Notification requested
26250132001	February 7, 2026	Informal	State Public Notification received
26250133001	February 7, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2525022 · OXAMYL · Synthetic Organic Chemicals

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25250131	August 7, 2025	Informal	State Formal Notice of Violation issued
25250131001	August 7, 2025	Informal	State Public Notification requested
26250132001	February 7, 2026	Informal	State Public Notification received
26250133001	February 7, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2525021 · Di(2-ethylhexyl) adipate · Synthetic Organic Chemicals

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25250131	August 7, 2025	Informal	State Formal Notice of Violation issued
25250131001	August 7, 2025	Informal	State Public Notification requested
26250132001	February 7, 2026	Informal	State Public Notification received
26250133001	February 7, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2525020 · Glyphosate · Synthetic Organic Chemicals

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25250131	August 7, 2025	Informal	State Formal Notice of Violation issued
25250131001	August 7, 2025	Informal	State Public Notification requested
26250132001	February 7, 2026	Informal	State Public Notification received
26250133001	February 7, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2525019 · Endothall · Synthetic Organic Chemicals

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25250131	August 7, 2025	Informal	State Formal Notice of Violation issued
25250131001	August 7, 2025	Informal	State Public Notification requested
26250132001	February 7, 2026	Informal	State Public Notification received
26250133001	February 7, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2525018 · Diquat · Synthetic Organic Chemicals

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25250131	August 7, 2025	Informal	State Formal Notice of Violation issued
25250131001	August 7, 2025	Informal	State Public Notification requested
26250132001	February 7, 2026	Informal	State Public Notification received
26250133001	February 7, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2525017 · Dalapon · Synthetic Organic Chemicals

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25250131	August 7, 2025	Informal	State Formal Notice of Violation issued
25250131001	August 7, 2025	Informal	State Public Notification requested
26250132001	February 7, 2026	Informal	State Public Notification received
26250133001	February 7, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2525016 · Toxaphene · Synthetic Organic Chemicals

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25250131	August 7, 2025	Informal	State Formal Notice of Violation issued
25250131001	August 7, 2025	Informal	State Public Notification requested
26250132001	February 7, 2026	Informal	State Public Notification received
26250133001	February 7, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2525015 · Methoxychlor · Synthetic Organic Chemicals

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25250131	August 7, 2025	Informal	State Formal Notice of Violation issued
25250131001	August 7, 2025	Informal	State Public Notification requested
26250132001	February 7, 2026	Informal	State Public Notification received
26250133001	February 7, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2525014 · BHC-GAMMA · Synthetic Organic Chemicals

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25250131	August 7, 2025	Informal	State Formal Notice of Violation issued
25250131001	August 7, 2025	Informal	State Public Notification requested
26250132001	February 7, 2026	Informal	State Public Notification received
26250133001	February 7, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2525013 · Endrin · Synthetic Organic Chemicals

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
25250131	August 7, 2025	Informal	State Formal Notice of Violation issued
25250131001	August 7, 2025	Informal	State Public Notification requested
26250132001	February 7, 2026	Informal	State Public Notification received
26250133001	February 7, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Unfilt/GWR)Violation 2303148 · Groundwater Rule · Ground Water Rule

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

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
230314878005	January 6, 2023	Informal	State Violation/Reminder Notice
230314880005	January 6, 2023	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Treatment Technique (SWTR and GWR)Violation 2301927 · Groundwater Rule · Ground Water Rule

Noncompliance period start October 1, 2022 · period end October 31, 2022 · first reported February 15, 2023 · EPA return-to-compliance field October 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
230192778002	December 13, 2022	Informal	State Boil Water Order
230192779002	December 13, 2022	Informal	State Public Notification received
230192780002	December 13, 2022	Resolving	State Compliance achieved

Other or unclassified · Resolved

Public Notification Violation for NPDWR ViolationViolation 2225459 · Public Notice · Public Notice Rule and Revised PN Rule

Noncompliance period start May 13, 2022 · period end October 24, 2022 · first reported August 22, 2022 · EPA return-to-compliance field October 24, 2022

6 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
222545872001	June 30, 2022	Informal	State Formal Notice of Violation issued
222545872007	June 30, 2022	Informal	State Formal Notice of Violation issued
222545873001	June 30, 2022	Informal	State Public Notification requested
222545873007	June 30, 2022	Informal	State Public Notification requested
232545874001	October 24, 2022	Informal	State Public Notification received
232545875001	October 24, 2022	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Treatment Technique (SWTR and GWR)Violation 2225458 · Groundwater Rule · Ground Water Rule

Noncompliance period start May 1, 2022 · period end May 31, 2022 · first reported August 22, 2022 · EPA return-to-compliance field May 31, 2022

6 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
222545872001	June 30, 2022	Informal	State Formal Notice of Violation issued
222545872007	June 30, 2022	Informal	State Formal Notice of Violation issued
222545873001	June 30, 2022	Informal	State Public Notification requested
222545873007	June 30, 2022	Informal	State Public Notification requested
232545874001	October 24, 2022	Informal	State Public Notification received
232545875001	October 24, 2022	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Unfilt/GWR)Violation 2130894 · Groundwater Rule · Ground Water 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
223089466002	October 5, 2021	Informal	State Formal Notice of Violation issued
223089467002	October 5, 2021	Informal	State Public Notification requested
222195069001	December 8, 2021	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Unfilt/GWR)Violation 2121950 · Groundwater Rule · Ground Water Rule

Noncompliance period start May 1, 2021 · period end May 31, 2021 · first reported August 15, 2021 · EPA return-to-compliance field May 31, 2021

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
212195066001	July 8, 2021	Informal	State Formal Notice of Violation issued
212195066002	July 8, 2021	Informal	State Formal Notice of Violation issued
212195067001	July 8, 2021	Informal	State Public Notification requested
212195067002	July 8, 2021	Informal	State Public Notification requested
222195069001	December 8, 2021	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Unfilt/GWR)Violation 2111064 · Groundwater Rule · Ground Water Rule

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

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
211106466001	February 10, 2021	Informal	State Violation/Reminder Notice
211106468001	February 10, 2021	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