MO1010802 · Missouri
UNION STAR PWS
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 2
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 2
Counties listed by EPA · DeKalb County, Missouri
Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.
Violations and what followed
Among 2 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 14.5 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Notification, Known or Potential LSLViolation 5402511 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance period start July 2, 2025 · period end July 2, 2025 · first reported June 16, 2026 · EPA return-to-compliance field July 2, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2018 July 2, 2025 Resolving State Compliance achieved 2016 April 6, 2026 Informal State Violation/Reminder Notice 2017 April 6, 2026 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 5402510 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start November 1, 2022 · period end November 30, 2022 · first reported March 27, 2023 · EPA return-to-compliance field November 30, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2014 December 16, 2022 Resolving State Compliance achieved 2012 January 3, 2023 Informal State Violation/Reminder Notice 2013 January 3, 2023 Informal State Public Notification requested 2015 January 31, 2023 Informal State Public Notification received
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