MO3010075 · Missouri

BLACKWATER PWS

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

Violation records shown: 11
EPA health-based flag: 0
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 9

Counties listed by EPA · Cooper 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 11 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 90 days. The interval uses the reporting periods and dates on file.

Monitoring or reporting · Resolved

Notification, Known or Potential LSLViolation 5408331 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions

Noncompliance period start July 2, 2025 · period end November 4, 2025 · first reported June 16, 2026 · EPA return-to-compliance field November 4, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1490174	November 4, 2025	Resolving	State Compliance achieved
1490172	April 6, 2026	Informal	State Violation/Reminder Notice
1490173	April 6, 2026	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 5408330 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start March 1, 2025 · period end March 31, 2025 · first reported June 23, 2025 · EPA return-to-compliance field March 31, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1490167	April 7, 2025	Resolving	State Compliance achieved
1490164	April 24, 2025	Informal	State Violation/Reminder Notice
1490165	April 24, 2025	Informal	State Public Notification requested
1490166	May 9, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Follow-up Or Routine LCR Tap M/RViolation 5408327 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start October 1, 2024 · period end October 20, 2025 · first reported March 28, 2025 · EPA return-to-compliance field October 20, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1490162	December 17, 2024	Informal	State Violation/Reminder Notice
1490163	December 17, 2024	Informal	State Public Notification requested
1490169	October 20, 2025	Resolving	State Compliance achieved
1490170	October 22, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 5408329 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2024 · period end September 30, 2024 · first reported December 20, 2024 · EPA return-to-compliance field September 30, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1490168	October 29, 2024	Resolving	State Compliance achieved
1490160	December 17, 2024	Informal	State Violation/Reminder Notice
1490161	December 17, 2024	Informal	State Public Notification requested
1490171	October 22, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 5408328 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2024 · period end September 30, 2024 · first reported December 20, 2024 · EPA return-to-compliance field September 30, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1490168	October 29, 2024	Resolving	State Compliance achieved
1490160	December 17, 2024	Informal	State Violation/Reminder Notice
1490161	December 17, 2024	Informal	State Public Notification requested
1490171	October 22, 2025	Informal	State Public Notification received

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 5408326 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start June 27, 2024 · period end June 30, 2024 · first reported September 30, 2024 · EPA return-to-compliance field June 30, 2024

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
1490158 June 30, 2024 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1490158	June 30, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 5408323 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start May 1, 2023 · period end May 31, 2023 · first reported September 15, 2023 · EPA return-to-compliance field May 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1490155	June 20, 2023	Resolving	State Compliance achieved
1490151	June 27, 2023	Informal	State Violation/Reminder Notice
1490152	June 27, 2023	Informal	State Public Notification requested
1490159	July 1, 2024	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 5408325 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start April 1, 2023 · period end June 30, 2023 · first reported September 15, 2023 · EPA return-to-compliance field June 30, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1490153	September 11, 2023	Informal	State Violation/Reminder Notice
1490154	September 11, 2023	Informal	State Public Notification requested
1490156	May 14, 2024	Resolving	State Compliance achieved
1490157	July 1, 2024	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 5408324 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start April 1, 2023 · period end June 30, 2023 · first reported September 15, 2023 · EPA return-to-compliance field June 30, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1490153	September 11, 2023	Informal	State Violation/Reminder Notice
1490154	September 11, 2023	Informal	State Public Notification requested
1490156	May 14, 2024	Resolving	State Compliance achieved
1490157	July 1, 2024	Informal	State Public Notification received

Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 5408322 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2019 · period end November 25, 2019 · first reported March 28, 2022 · EPA return-to-compliance field November 25, 2019

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
1490150 November 25, 2019 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1490150	November 25, 2019	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 5408321 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start April 1, 2019 · period end April 30, 2019 · first reported March 28, 2022 · EPA return-to-compliance field April 30, 2019

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1490145	May 31, 2019	Informal	State Violation/Reminder Notice
1490146	May 31, 2019	Informal	State Public Notification requested
1490147	June 5, 2019	Resolving	State Compliance achieved
1490148	July 10, 2019	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