IA5200861 · Iowa

TWIN VALLEY LAKES IMPROVEMENT ASSN

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

Violation records shown: 5
EPA health-based flag: 0
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 3

Counties listed by EPA · Johnson County, Iowa

Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.

Violations and what followed

Among 3 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 394 days. The interval uses the reporting periods and dates on file.

Monitoring or reporting · Archived

Monitoring and Reporting (DBP)Violation 346225 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2025 · period end July 31, 2025 · first reported December 19, 2025 · EPA return-to-compliance field July 31, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
671836	September 22, 2025	Informal	State Formal Notice of Violation issued
671837	September 22, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring and Reporting (DBP)Violation 345525 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2025 · period end July 31, 2025 · first reported December 19, 2025 · EPA return-to-compliance field July 31, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
671838	September 22, 2025	Informal	State Public Notification requested
671839	September 22, 2025	Informal	State Formal Notice of Violation issued

Other or unclassified · Resolved

Consumer Confidence Report Complete Failure to ReportViolation 210622 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start July 1, 2022 · period end September 12, 2022 · first reported December 7, 2022 · EPA return-to-compliance field September 12, 2022

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
671834	August 21, 2022	Informal	State Public Notification requested
671835	August 21, 2022	Informal	State Formal Notice of Violation issued
671832	September 12, 2022	Informal	State Public Notification received
671833	September 12, 2022	Resolving	State Compliance achieved

Other or unclassified · Resolved

Consumer Confidence Report Complete Failure to ReportViolation 183921 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start July 1, 2021 · period end September 12, 2022 · first reported December 8, 2021 · EPA return-to-compliance field September 12, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
671826	August 26, 2021	Informal	State Formal Notice of Violation issued
671830	September 12, 2022	Informal	State Public Notification received
671831	September 12, 2022	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Follow-up Or Routine LCR Tap M/RViolation 34221 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start June 1, 2020 · period end June 30, 2021 · first reported December 8, 2020 · EPA return-to-compliance field June 30, 2021

6 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
671823	November 18, 2020	Informal	State Formal Notice of Violation issued
671824	November 18, 2020	Informal	State Public Notification requested
671825	February 3, 2021	Informal	State Public Notification received
671829	June 17, 2021	Informal	State Public Notification received
671828	June 29, 2021	Informal	State Public Notification received
671827	June 30, 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