055294503 · Minnesota
LOWER SIOUX
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 8
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 6
Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.
Violations and what followed
Among 8 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 48.5 days. The interval uses the reporting periods and dates on file.
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 1009637 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start June 26, 2025 · period end June 26, 2025 · first reported September 30, 2025 · EPA return-to-compliance field June 26, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 32258 June 26, 2025 Resolving Federal Compliance achieved 32257 September 10, 2025 Informal Federal Violation/Reminder Notice Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 1009635 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 2, 2024 · period end September 27, 2024 · first reported December 4, 2024 · EPA return-to-compliance field September 27, 2024
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 32241 July 11, 2024 Informal Federal Violation/Reminder Notice 32243 July 25, 2024 Resolving Federal Compliance achieved 32244 September 26, 2024 Resolving Federal Compliance achieved 32245 September 27, 2024 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 1009636 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start May 1, 2024 · period end May 31, 2024 · first reported June 23, 2025 · EPA return-to-compliance field May 31, 2024
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 32249 June 11, 2024 Informal Federal Violation/Reminder Notice 32250 June 11, 2024 Informal Federal Public Notification requested 32251 June 11, 2024 Resolving Federal Compliance achieved 32254 June 26, 2025 Informal Federal Public Notification received from PWS Monitoring or reporting · Resolved
Report Sample Result/Fail Monitor (RTCR)Violation 1009634 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start May 1, 2024 · period end June 11, 2024 · first reported September 27, 2024 · EPA return-to-compliance field June 11, 2024
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 32246 June 11, 2024 Informal Federal Violation/Reminder Notice 32247 June 11, 2024 Informal Federal Public Notification requested 32248 June 11, 2024 Resolving Federal Compliance achieved 32252 June 26, 2025 Informal Federal Public Notification received from PWS 32257 September 10, 2025 Informal Federal Violation/Reminder Notice Monitoring or reporting · Resolved
Report Sample Result/Fail Monitor (RTCR)Violation 1009633 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start October 1, 2023 · period end November 15, 2023 · first reported March 4, 2024 · EPA return-to-compliance field November 15, 2023
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 32238 November 11, 2023 Informal Federal Violation/Reminder Notice 32239 November 15, 2023 Informal Federal Public Notification requested 32240 November 15, 2023 Resolving Federal Compliance achieved 32242 July 18, 2024 Informal Federal Public Notification received from PWS Monitoring or reporting · Resolved
Report Sample Result/Fail Monitor (RTCR)Violation 1009632 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start August 1, 2023 · period end September 22, 2023 · first reported December 1, 2023 · EPA return-to-compliance field September 22, 2023
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 32234 September 19, 2023 Informal Federal Violation/Reminder Notice 32235 September 22, 2023 Informal Federal Public Notification requested 32237 September 22, 2023 Resolving Federal Compliance achieved 32242 July 18, 2024 Informal Federal Public Notification received from PWS Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 1009598 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2020 · period end September 30, 2020 · first reported March 30, 2021 · EPA return-to-compliance field September 30, 2020
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 32226 September 30, 2020 Resolving Federal Compliance achieved 32227 October 26, 2020 Informal Federal Public Notification requested 32228 October 26, 2020 Informal Federal Violation/Reminder Notice 32230 October 26, 2020 Informal Federal Public Notification received from PWS Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 1009597 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2020 · period end September 30, 2020 · first reported March 30, 2021 · EPA return-to-compliance field September 30, 2020
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 32226 September 30, 2020 Resolving Federal Compliance achieved 32227 October 26, 2020 Informal Federal Public Notification requested 32228 October 26, 2020 Informal Federal Violation/Reminder Notice 32230 October 26, 2020 Informal Federal Public Notification received from PWS
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