IN5244005 · Indiana

LAKE OF THE WOODS MHP

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

Violation records shown: 42
EPA health-based flag: 4
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 34

Counties listed by EPA · LaGrange County, Indiana

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 365 days. The interval uses the reporting periods and dates on file.

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 2150 · Arsenic · Arsenic Rule

Noncompliance period start January 1, 2026 · period end March 31, 2026 · first reported June 24, 2026 · EPA return-to-compliance field March 31, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596146	February 5, 2026	Informal	State Violation/Reminder Notice
596147	February 5, 2026	Informal	State Public Notification requested

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 2149 · Arsenic · Arsenic Rule

Noncompliance period start October 1, 2025 · period end December 31, 2025 · first reported February 24, 2026 · EPA return-to-compliance field December 31, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596143	December 31, 2025	Informal	State Violation/Reminder Notice
596144	December 31, 2025	Informal	State Public Notification requested

Other or unclassified · Unaddressed by formal action

Consumer Confidence Report Inadequate ReportingViolation 2148 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start October 1, 2025 · first reported February 24, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596141	July 28, 2025	Informal	State Violation/Reminder Notice
596142	July 28, 2025	Informal	State Public Notification requested

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 2147 · Arsenic · Arsenic Rule

Noncompliance period start July 1, 2025 · period end September 30, 2025 · first reported December 17, 2025 · 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
596141	July 28, 2025	Informal	State Violation/Reminder Notice
596142	July 28, 2025	Informal	State Public Notification requested

Other or unclassified · Unaddressed by formal action
Consumer Confidence Report Complete Failure to ReportViolation 2146 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2025 · first reported December 17, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
596140 July 14, 2025 Informal State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596140	July 14, 2025	Informal	State Violation/Reminder Notice

Other or unclassified · Resolved

Consumer Confidence Report Complete Failure to ReportViolation 2116 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start July 1, 2024 · period end August 2, 2024 · first reported December 2, 2024 · EPA return-to-compliance field August 2, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596131	August 2, 2024	Informal	State Violation/Reminder Notice
596132	August 2, 2024	Informal	State Public Notification requested
596133	August 2, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Lead Consumer NoticeViolation 2145 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start January 1, 2024 · period end January 22, 2025 · first reported February 27, 2025 · EPA return-to-compliance field January 22, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596134	January 15, 2025	Informal	State Violation/Reminder Notice
596135	January 22, 2025	Informal	State Public Notification received
596136	January 22, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2144 · Chlordane · Synthetic Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 27, 2025 · EPA return-to-compliance field December 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596137	January 13, 2025	Informal	State Violation/Reminder Notice
596138	January 13, 2025	Informal	State Public Notification requested
596139	February 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2143 · ETHYLENE DIBROMIDE · Synthetic Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 27, 2025 · EPA return-to-compliance field December 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596137	January 13, 2025	Informal	State Violation/Reminder Notice
596138	January 13, 2025	Informal	State Public Notification requested
596139	February 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2142 · 1,2-DIBROMO-3-CHLOROPROPANE · Synthetic Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 27, 2025 · EPA return-to-compliance field December 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596137	January 13, 2025	Informal	State Violation/Reminder Notice
596138	January 13, 2025	Informal	State Public Notification requested
596139	February 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2141 · Pentachlorophenol · Synthetic Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 27, 2025 · EPA return-to-compliance field December 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596137	January 13, 2025	Informal	State Violation/Reminder Notice
596138	January 13, 2025	Informal	State Public Notification requested
596139	February 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2140 · Benzo(a)pyrene · Synthetic Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 27, 2025 · EPA return-to-compliance field December 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596137	January 13, 2025	Informal	State Violation/Reminder Notice
596138	January 13, 2025	Informal	State Public Notification requested
596139	February 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2139 · HEXACHLOROBENZENE · Synthetic Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 27, 2025 · EPA return-to-compliance field December 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596137	January 13, 2025	Informal	State Violation/Reminder Notice
596138	January 13, 2025	Informal	State Public Notification requested
596139	February 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2138 · 2,4,5-TP · Synthetic Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 27, 2025 · EPA return-to-compliance field December 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596137	January 13, 2025	Informal	State Violation/Reminder Notice
596138	January 13, 2025	Informal	State Public Notification requested
596139	February 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2137 · 2,4-D · Synthetic Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 27, 2025 · EPA return-to-compliance field December 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596137	January 13, 2025	Informal	State Violation/Reminder Notice
596138	January 13, 2025	Informal	State Public Notification requested
596139	February 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2136 · Heptachlor epoxide · Synthetic Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 27, 2025 · EPA return-to-compliance field December 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596137	January 13, 2025	Informal	State Violation/Reminder Notice
596138	January 13, 2025	Informal	State Public Notification requested
596139	February 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2135 · Heptachlor · Synthetic Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 27, 2025 · EPA return-to-compliance field December 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596137	January 13, 2025	Informal	State Violation/Reminder Notice
596138	January 13, 2025	Informal	State Public Notification requested
596139	February 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2134 · LASSO · Synthetic Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 27, 2025 · EPA return-to-compliance field December 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596137	January 13, 2025	Informal	State Violation/Reminder Notice
596138	January 13, 2025	Informal	State Public Notification requested
596139	February 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2133 · Atrazine · Synthetic Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 27, 2025 · EPA return-to-compliance field December 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596137	January 13, 2025	Informal	State Violation/Reminder Notice
596138	January 13, 2025	Informal	State Public Notification requested
596139	February 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2132 · Carbofuran · Synthetic Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 27, 2025 · EPA return-to-compliance field December 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596137	January 13, 2025	Informal	State Violation/Reminder Notice
596138	January 13, 2025	Informal	State Public Notification requested
596139	February 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2131 · Hexachlorocyclopentadiene · Synthetic Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 27, 2025 · EPA return-to-compliance field December 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596137	January 13, 2025	Informal	State Violation/Reminder Notice
596138	January 13, 2025	Informal	State Public Notification requested
596139	February 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2130 · Dinoseb · Synthetic Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 27, 2025 · EPA return-to-compliance field December 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596137	January 13, 2025	Informal	State Violation/Reminder Notice
596138	January 13, 2025	Informal	State Public Notification requested
596139	February 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2129 · Picloram · Synthetic Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 27, 2025 · EPA return-to-compliance field December 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596137	January 13, 2025	Informal	State Violation/Reminder Notice
596138	January 13, 2025	Informal	State Public Notification requested
596139	February 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2128 · Di(2-ethylhexyl) phthalate · Synthetic Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 27, 2025 · EPA return-to-compliance field December 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596137	January 13, 2025	Informal	State Violation/Reminder Notice
596138	January 13, 2025	Informal	State Public Notification requested
596139	February 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2127 · Simazine · Synthetic Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 27, 2025 · EPA return-to-compliance field December 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596137	January 13, 2025	Informal	State Violation/Reminder Notice
596138	January 13, 2025	Informal	State Public Notification requested
596139	February 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2126 · OXAMYL · Synthetic Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 27, 2025 · EPA return-to-compliance field December 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596137	January 13, 2025	Informal	State Violation/Reminder Notice
596138	January 13, 2025	Informal	State Public Notification requested
596139	February 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2125 · Di(2-ethylhexyl) adipate · Synthetic Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 27, 2025 · EPA return-to-compliance field December 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596137	January 13, 2025	Informal	State Violation/Reminder Notice
596138	January 13, 2025	Informal	State Public Notification requested
596139	February 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2124 · Glyphosate · Synthetic Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 27, 2025 · EPA return-to-compliance field December 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596137	January 13, 2025	Informal	State Violation/Reminder Notice
596138	January 13, 2025	Informal	State Public Notification requested
596139	February 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2123 · Endothall · Synthetic Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 27, 2025 · EPA return-to-compliance field December 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596137	January 13, 2025	Informal	State Violation/Reminder Notice
596138	January 13, 2025	Informal	State Public Notification requested
596139	February 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2122 · Diquat · Synthetic Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 27, 2025 · EPA return-to-compliance field December 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596137	January 13, 2025	Informal	State Violation/Reminder Notice
596138	January 13, 2025	Informal	State Public Notification requested
596139	February 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2121 · Dalapon · Synthetic Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 27, 2025 · EPA return-to-compliance field December 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596137	January 13, 2025	Informal	State Violation/Reminder Notice
596138	January 13, 2025	Informal	State Public Notification requested
596139	February 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2120 · Toxaphene · Synthetic Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 27, 2025 · EPA return-to-compliance field December 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596137	January 13, 2025	Informal	State Violation/Reminder Notice
596138	January 13, 2025	Informal	State Public Notification requested
596139	February 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2119 · Methoxychlor · Synthetic Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 27, 2025 · EPA return-to-compliance field December 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596137	January 13, 2025	Informal	State Violation/Reminder Notice
596138	January 13, 2025	Informal	State Public Notification requested
596139	February 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2118 · BHC-GAMMA · Synthetic Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 27, 2025 · EPA return-to-compliance field December 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596137	January 13, 2025	Informal	State Violation/Reminder Notice
596138	January 13, 2025	Informal	State Public Notification requested
596139	February 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2117 · Endrin · Synthetic Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 27, 2025 · EPA return-to-compliance field December 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596137	January 13, 2025	Informal	State Violation/Reminder Notice
596138	January 13, 2025	Informal	State Public Notification requested
596139	February 24, 2025	Resolving	State Compliance achieved

Other or unclassified · Resolved

Consumer Confidence Report Complete Failure to ReportViolation 2115 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start July 1, 2022 · period end September 26, 2022 · first reported November 29, 2022 · EPA return-to-compliance field September 26, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596128	August 3, 2022	Informal	State Violation/Reminder Notice
596129	August 3, 2022	Informal	State Public Notification requested
596130	September 26, 2022	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Report Sample Result/Fail Monitor (RTCR)Violation 2114 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start November 1, 2021 · period end January 20, 2022 · first reported February 17, 2022 · EPA return-to-compliance field January 20, 2022

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596123	December 29, 2021	Informal	State Violation/Reminder Notice
596124	December 29, 2021	Informal	State Public Notification requested
596125	January 4, 2022	Informal	State Violation/Reminder Notice
596126	January 20, 2022	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Report Sample Result/Fail Monitor (RTCR)Violation 2111 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start October 11, 2021 · period end November 23, 2021 · first reported November 9, 2021 · EPA return-to-compliance field November 23, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596114	October 22, 2021	Informal	State Violation/Reminder Notice
596115	October 22, 2021	Informal	State Public Notification requested
596118	November 23, 2021	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 2113 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start October 1, 2021 · period end October 31, 2021 · first reported February 17, 2022 · EPA return-to-compliance field October 31, 2021

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596119	November 24, 2021	Informal	State Violation/Reminder Notice
596120	November 24, 2021	Informal	State Public Notification requested
596122	December 28, 2021	Informal	State Public Notification received
596125	January 4, 2022	Informal	State Violation/Reminder Notice
596127	January 20, 2022	Resolving	State Compliance achieved

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 2112 · Arsenic · Arsenic Rule

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported February 17, 2022 · EPA return-to-compliance field September 30, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596116	November 16, 2021	Informal	State Violation/Reminder Notice
596117	November 16, 2021	Informal	State Public Notification requested
596121	November 30, 2021	Informal	State Public Notification received

Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 2107 · Lead and Copper Rule · Lead and Copper Rule
Noncompliance period start January 1, 2021 · period end April 22, 2021 · first reported May 20, 2021 · EPA return-to-compliance field April 22, 2021

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
596109 March 29, 2021 Informal State Violation/Reminder Notice
596111 April 22, 2021 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596109	March 29, 2021	Informal	State Violation/Reminder Notice
596111	April 22, 2021	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 2106 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start October 1, 2020 · period end October 31, 2020 · first reported March 3, 2021 · EPA return-to-compliance field October 31, 2020

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
596106	November 13, 2020	Informal	State Violation/Reminder Notice
596107	November 13, 2020	Informal	State Public Notification requested
596108	December 4, 2020	Informal	State Violation/Reminder Notice
596110	January 22, 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