CO0157950 · Colorado

WILSON MESA

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

Violation records shown: 21
EPA health-based flag: 0
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 19

Counties listed by EPA · San Miguel County, Colorado

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

Violations and what followed

Among 18 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.

Monitoring or reporting · Archived

Monitoring, Routine (RTCR)Violation 4014884 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start January 1, 2026 · period end January 31, 2026 · first reported May 27, 2026 · EPA return-to-compliance field January 31, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041312	February 18, 2026	Informal	State Violation/Reminder Notice
4041313	February 18, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring and Reporting (DBP)Violation 4014883 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2026 · period end March 31, 2026 · first reported May 27, 2026 · EPA return-to-compliance field March 31, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041310	February 18, 2026	Informal	State Violation/Reminder Notice
4041311	February 18, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring of Treatment (SWTR-Filter)Violation 4014882 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start January 1, 2026 · period end January 31, 2026 · first reported May 27, 2026 · EPA return-to-compliance field January 31, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041308	February 18, 2026	Informal	State Violation/Reminder Notice
4041309	February 18, 2026	Informal	State Public Notification requested

Other or unclassified · Resolved

Consumer Confidence Report Complete Failure to ReportViolation 4014881 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start July 1, 2025 · period end June 2, 2026 · first reported August 18, 2025 · EPA return-to-compliance field June 2, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041306	July 31, 2025	Informal	State Violation/Reminder Notice
4041307	July 31, 2025	Informal	State Public Notification requested
4041314	June 2, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Turbidity (Enhanced SWTR)Violation 4014880 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

Noncompliance period start March 1, 2025 · period end March 31, 2025 · first reported May 15, 2025 · EPA return-to-compliance field March 31, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041303	April 24, 2025	Informal	State Violation/Reminder Notice
4041304	April 24, 2025	Informal	State Public Notification requested
4041305	May 5, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 4014879 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start March 1, 2025 · period end March 31, 2025 · first reported May 15, 2025 · EPA return-to-compliance field March 31, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041301	April 24, 2025	Informal	State Violation/Reminder Notice
4041302	April 24, 2025	Informal	State Public Notification requested
4041305	May 5, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 4014876 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start November 1, 2024 · period end November 30, 2024 · first reported February 18, 2025 · EPA return-to-compliance field November 30, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041299	December 16, 2024	Resolving	State Compliance achieved
4041293	December 26, 2024	Informal	State Violation/Reminder Notice
4041294	December 26, 2024	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 4014875 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start November 1, 2024 · period end November 30, 2024 · first reported February 18, 2025 · EPA return-to-compliance field November 30, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041299	December 16, 2024	Resolving	State Compliance achieved
4041291	December 26, 2024	Informal	State Violation/Reminder Notice
4041292	December 26, 2024	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 4014877 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start October 1, 2024 · period end December 16, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 16, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041299	December 16, 2024	Resolving	State Compliance achieved
4041295	December 26, 2024	Informal	State Violation/Reminder Notice
4041296	December 26, 2024	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, Turbidity (Enhanced SWTR)Violation 4014872 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

Noncompliance period start May 1, 2024 · period end May 31, 2024 · first reported August 14, 2024 · EPA return-to-compliance field May 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041286	June 28, 2024	Informal	State Violation/Reminder Notice
4041287	June 28, 2024	Informal	State Public Notification requested
4041288	July 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 4014871 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start May 1, 2024 · period end May 31, 2024 · first reported August 14, 2024 · EPA return-to-compliance field May 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041286	June 28, 2024	Informal	State Violation/Reminder Notice
4041287	June 28, 2024	Informal	State Public Notification requested
4041288	July 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 4014874 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2024 · period end November 21, 2024 · first reported November 14, 2024 · EPA return-to-compliance field November 21, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041289	October 28, 2024	Informal	State Violation/Reminder Notice
4041290	October 28, 2024	Informal	State Public Notification requested
4041300	November 21, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 4014873 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2024 · period end November 21, 2024 · first reported November 14, 2024 · EPA return-to-compliance field November 21, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041289	October 28, 2024	Informal	State Violation/Reminder Notice
4041290	October 28, 2024	Informal	State Public Notification requested
4041300	November 21, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 4014870 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start January 1, 2024 · period end January 31, 2024 · first reported May 16, 2024 · EPA return-to-compliance field January 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041285	February 13, 2024	Resolving	State Compliance achieved
4041283	February 23, 2024	Informal	State Violation/Reminder Notice
4041284	February 23, 2024	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 4014869 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2024 · period end February 13, 2024 · first reported May 16, 2024 · EPA return-to-compliance field February 13, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041285	February 13, 2024	Resolving	State Compliance achieved
4041283	February 23, 2024	Informal	State Violation/Reminder Notice
4041284	February 23, 2024	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 4014868 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start January 1, 2024 · period end January 31, 2024 · first reported May 16, 2024 · EPA return-to-compliance field January 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041285	February 13, 2024	Resolving	State Compliance achieved
4041283	February 23, 2024	Informal	State Violation/Reminder Notice
4041284	February 23, 2024	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 4014867 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start December 1, 2023 · period end December 31, 2023 · first reported February 14, 2024 · EPA return-to-compliance field December 31, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041281	January 23, 2024	Informal	State Violation/Reminder Notice
4041282	January 23, 2024	Informal	State Public Notification requested
4041285	February 13, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 4014865 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start December 1, 2023 · period end December 31, 2023 · first reported February 14, 2024 · EPA return-to-compliance field December 31, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041281	January 23, 2024	Informal	State Violation/Reminder Notice
4041282	January 23, 2024	Informal	State Public Notification requested
4041285	February 13, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 4014866 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported February 14, 2024 · EPA return-to-compliance field December 31, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041281	January 23, 2024	Informal	State Violation/Reminder Notice
4041282	January 23, 2024	Informal	State Public Notification requested
4041285	February 13, 2024	Resolving	State Compliance achieved

Other or unclassified · Resolved

Sample Siting Plan Errors (RTCR)Violation 4014863 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start July 11, 2023 · period end August 3, 2023 · first reported August 15, 2023 · EPA return-to-compliance field August 3, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041275	July 11, 2023	Informal	State Violation/Reminder Notice
4041276	July 11, 2023	Informal	State Public Notification requested
4041278	August 3, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 4014864 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2023 · period end December 31, 2023 · first reported November 15, 2023 · EPA return-to-compliance field December 31, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041279	October 17, 2023	Informal	State Violation/Reminder Notice
4041280	October 17, 2023	Informal	State Public Notification requested
4041300	November 21, 2024	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