CO0143559 · Colorado
NUCLA TOWN OF
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 12
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 12
Counties listed by EPA · Montrose 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 12 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 70.5 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Follow-up Or Routine LCR Tap M/RViolation 4009450 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start October 1, 2024 · period end July 22, 2025 · first reported November 14, 2024 · EPA return-to-compliance field July 22, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4031713 October 15, 2024 Informal State Violation/Reminder Notice 4031714 October 15, 2024 Informal State Public Notification requested 4031716 July 22, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 4009449 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start April 1, 2024 · period end April 30, 2024 · first reported August 14, 2024 · EPA return-to-compliance field April 30, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4031710 May 14, 2024 Informal State Violation/Reminder Notice 4031711 May 14, 2024 Informal State Public Notification requested 4031712 June 10, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 4009448 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2024 · period end June 10, 2024 · first reported August 14, 2024 · EPA return-to-compliance field June 10, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4031710 May 14, 2024 Informal State Violation/Reminder Notice 4031711 May 14, 2024 Informal State Public Notification requested 4031712 June 10, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Report Sample Result/Fail Monitor (RTCR)Violation 4009447 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start April 1, 2024 · period end June 10, 2024 · first reported August 14, 2024 · EPA return-to-compliance field June 10, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4031710 May 14, 2024 Informal State Violation/Reminder Notice 4031711 May 14, 2024 Informal State Public Notification requested 4031712 June 10, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 4009446 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start January 1, 2024 · period end October 24, 2024 · first reported February 14, 2024 · EPA return-to-compliance field October 24, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4031706 January 2, 2024 Informal State Violation/Reminder Notice 4031707 January 2, 2024 Informal State Public Notification requested 4031715 October 24, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 4009445 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start November 1, 2023 · period end November 30, 2023 · first reported February 14, 2024 · EPA return-to-compliance field November 30, 2023
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4031705 December 11, 2023 Resolving State Compliance achieved 4031703 December 12, 2023 Informal State Violation/Reminder Notice 4031704 December 12, 2023 Informal State Public Notification requested Monitoring or reporting · Resolved
Report Sample Result/Fail Monitor (RTCR)Violation 4009443 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start November 1, 2023 · period end December 11, 2023 · first reported February 14, 2024 · EPA return-to-compliance field December 11, 2023
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4031705 December 11, 2023 Resolving State Compliance achieved 4031703 December 12, 2023 Informal State Violation/Reminder Notice 4031704 December 12, 2023 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 4009444 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2023 · period end December 11, 2023 · first reported February 14, 2024 · EPA return-to-compliance field December 11, 2023
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4031705 December 11, 2023 Resolving State Compliance achieved 4031703 December 12, 2023 Informal State Violation/Reminder Notice 4031704 December 12, 2023 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 4009441 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2023 · period end September 30, 2023 · first reported November 15, 2023 · EPA return-to-compliance field September 30, 2023
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4031696 October 25, 2023 Informal State Violation/Reminder Notice 4031697 October 25, 2023 Informal State Public Notification requested 4031702 November 3, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 4009440 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2023 · period end September 30, 2023 · first reported November 15, 2023 · EPA return-to-compliance field September 30, 2023
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4031694 October 25, 2023 Informal State Violation/Reminder Notice 4031695 October 25, 2023 Informal State Public Notification requested 4031702 November 3, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Follow-up Or Routine LCR Tap M/RViolation 4009439 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start October 1, 2022 · period end October 13, 2023 · first reported November 16, 2022 · EPA return-to-compliance field October 13, 2023
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4031692 October 17, 2022 Informal State Violation/Reminder Notice 4031693 October 17, 2022 Informal State Public Notification requested 4031701 October 13, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Follow-up Or Routine LCR Tap M/RViolation 4009438 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start October 1, 2021 · period end October 26, 2021 · first reported December 2, 2021 · EPA return-to-compliance field October 26, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4031687 October 22, 2021 Informal State Violation/Reminder Notice 4031688 October 22, 2021 Informal State Public Notification requested 4031689 October 26, 2021 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