MO2010420 · Missouri

KEYTESVILLE PWS

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

Violation records shown: 9
EPA health-based flag: 5
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 4

Counties listed by EPA · Chariton 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 5 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 30 days. The interval uses the reporting periods and dates on file.

EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 7103235 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start April 1, 2026 · period end June 30, 2026 · first reported September 28, 2026 · EPA return-to-compliance field June 30, 2026
No linked action row appears in the records shown.

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 7103234 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2026 · period end March 31, 2026 · first reported June 16, 2026 · EPA return-to-compliance field March 31, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1767	May 29, 2026	Informal	State Public Notification requested
1768	May 29, 2026	Informal	State Formal Notice of Violation issued
1769	June 16, 2026	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 7103231 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start October 1, 2025 · period end December 31, 2025 · first reported March 25, 2026 · EPA return-to-compliance field December 31, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1759	March 9, 2026	Informal	State Public Notification requested
1760	March 9, 2026	Informal	State Formal Notice of Violation issued
1764	April 3, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Notification, Known or Potential LSLViolation 7103233 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions

Noncompliance period start July 2, 2025 · period end November 18, 2025 · first reported June 16, 2026 · EPA return-to-compliance field November 18, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1770	November 18, 2025	Resolving	State Compliance achieved
1765	April 6, 2026	Informal	State Violation/Reminder Notice
1766	April 6, 2026	Informal	State Public Notification requested
1771	April 16, 2026	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 7103230 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2025 · period end September 30, 2025 · first reported December 31, 2025 · EPA return-to-compliance field September 30, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1757	December 11, 2025	Informal	State Public Notification requested
1758	December 11, 2025	Informal	State Formal Notice of Violation issued
1762	March 26, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Unfilt/GWR)Violation 7103229 · Groundwater Rule · Ground Water Rule

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1754	August 25, 2025	Informal	State Violation/Reminder Notice
1755	August 25, 2025	Informal	State Public Notification requested
1756	September 22, 2025	Resolving	State Compliance achieved
1763	March 26, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Unfilt/GWR)Violation 7103226 · Groundwater Rule · Ground Water Rule

Noncompliance period start January 1, 2024 · period end January 31, 2024 · first reported June 11, 2024 · EPA return-to-compliance field January 31, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1750	February 21, 2024	Informal	State Violation/Reminder Notice
1751	February 21, 2024	Informal	State Public Notification requested
1753	March 15, 2024	Informal	State Public Notification received
1752	March 25, 2024	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 7103225 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2022 · period end September 30, 2022 · first reported December 14, 2022 · EPA return-to-compliance field September 30, 2022

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1746	December 13, 2022	Informal	State Public Notification requested
1747	December 13, 2022	Informal	State Formal Notice of Violation issued
1748	January 18, 2023	Informal	State Public Notification received
1749	April 11, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Unfilt/GWR)Violation 7103224 · Groundwater Rule · Ground Water Rule

Noncompliance period start December 1, 2020 · period end December 31, 2020 · first reported March 28, 2022 · EPA return-to-compliance field December 31, 2020

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1742	January 28, 2021	Informal	State Violation/Reminder Notice
1743	January 28, 2021	Informal	State Public Notification requested
1744	February 25, 2021	Resolving	State Compliance achieved
1745	February 26, 2021	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