CO0101510 · Colorado

MILE HIGH WC

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

Violation records shown: 9
EPA health-based flag: 0
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 7

Counties listed by EPA · Adams 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 9 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 80 days. The interval uses the reporting periods and dates on file.

Other or unclassified · Resolved

Sample Siting Plan Errors (RTCR)Violation 1745 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start January 31, 2025 · period end February 25, 2025 · first reported February 18, 2025 · EPA return-to-compliance field February 25, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2499	January 31, 2025	Informal	State Violation/Reminder Notice
2500	January 31, 2025	Informal	State Public Notification requested
2505	February 25, 2025	Resolving	State Compliance achieved
2507	June 9, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 1743 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start June 1, 2024 · period end June 30, 2024 · first reported August 14, 2024 · EPA return-to-compliance field June 30, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2494	July 19, 2024	Informal	State Violation/Reminder Notice
2495	July 19, 2024	Informal	State Public Notification requested
2496	July 26, 2024	Resolving	State Compliance achieved
2506	June 24, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 1742 · Chloramine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start April 1, 2024 · period end June 30, 2024 · first reported August 14, 2024 · EPA return-to-compliance field June 30, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2492	July 19, 2024	Informal	State Violation/Reminder Notice
2493	July 19, 2024	Informal	State Public Notification requested
2496	July 26, 2024	Resolving	State Compliance achieved
2506	June 24, 2025	Informal	State Public Notification received

Other or unclassified · Resolved

Consumer Confidence Report Complete Failure to ReportViolation 1741 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start July 1, 2023 · period end June 24, 2024 · first reported August 15, 2023 · EPA return-to-compliance field June 24, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2489	July 20, 2023	Informal	State Violation/Reminder Notice
2490	July 20, 2023	Informal	State Public Notification requested
2491	June 24, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 1738 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start August 1, 2022 · period end August 31, 2022 · first reported November 16, 2022 · EPA return-to-compliance field August 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2483	September 16, 2022	Informal	State Violation/Reminder Notice
2484	September 16, 2022	Informal	State Public Notification requested
2487	September 19, 2022	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 1736 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start August 1, 2022 · period end August 31, 2022 · first reported November 16, 2022 · EPA return-to-compliance field August 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2479	September 16, 2022	Informal	State Violation/Reminder Notice
2480	September 16, 2022	Informal	State Public Notification requested
2487	September 19, 2022	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 1740 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2022 · period end September 30, 2022 · first reported November 16, 2022 · EPA return-to-compliance field September 30, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2485	October 17, 2022	Informal	State Violation/Reminder Notice
2486	October 17, 2022	Informal	State Public Notification requested
2488	October 20, 2022	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 1739 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2022 · period end September 30, 2022 · first reported November 16, 2022 · EPA return-to-compliance field September 30, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2485	October 17, 2022	Informal	State Violation/Reminder Notice
2486	October 17, 2022	Informal	State Public Notification requested
2488	October 20, 2022	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 1737 · Chloramine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2022 · period end September 19, 2022 · first reported November 16, 2022 · EPA return-to-compliance field September 19, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2481	September 16, 2022	Informal	State Violation/Reminder Notice
2482	September 16, 2022	Informal	State Public Notification requested
2487	September 19, 2022	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