CO0157011 · Colorado
ALDASORO RANCH HOC
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 23
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 23
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 23 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 295 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 664 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2026 · period end February 5, 2026 · first reported May 27, 2026 · EPA return-to-compliance field February 5, 2026
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 37 February 5, 2026 Resolving State Compliance achieved 35 February 17, 2026 Informal State Violation/Reminder Notice 36 February 17, 2026 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 663 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start January 1, 2026 · period end January 31, 2026 · first reported May 27, 2026 · EPA return-to-compliance field January 31, 2026
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 37 February 5, 2026 Resolving State Compliance achieved 35 February 17, 2026 Informal State Violation/Reminder Notice 36 February 17, 2026 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 662 · Styrene · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end October 23, 2025 · first reported February 23, 2026 · EPA return-to-compliance field October 23, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 34 October 23, 2025 Resolving State Compliance achieved 32 October 30, 2025 Informal State Violation/Reminder Notice 33 October 30, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 661 · Ethylbenzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end October 23, 2025 · first reported February 23, 2026 · EPA return-to-compliance field October 23, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 34 October 23, 2025 Resolving State Compliance achieved 32 October 30, 2025 Informal State Violation/Reminder Notice 33 October 30, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 660 · Toluene · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end October 23, 2025 · first reported February 23, 2026 · EPA return-to-compliance field October 23, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 34 October 23, 2025 Resolving State Compliance achieved 32 October 30, 2025 Informal State Violation/Reminder Notice 33 October 30, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 659 · Benzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end October 23, 2025 · first reported February 23, 2026 · EPA return-to-compliance field October 23, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 34 October 23, 2025 Resolving State Compliance achieved 32 October 30, 2025 Informal State Violation/Reminder Notice 33 October 30, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 658 · CHLOROBENZENE · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end October 23, 2025 · first reported February 23, 2026 · EPA return-to-compliance field October 23, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 34 October 23, 2025 Resolving State Compliance achieved 32 October 30, 2025 Informal State Violation/Reminder Notice 33 October 30, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 657 · Tetrachloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end October 23, 2025 · first reported February 23, 2026 · EPA return-to-compliance field October 23, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 34 October 23, 2025 Resolving State Compliance achieved 32 October 30, 2025 Informal State Violation/Reminder Notice 33 October 30, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 656 · 1,1,2-Trichloroethane · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end October 23, 2025 · first reported February 23, 2026 · EPA return-to-compliance field October 23, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 34 October 23, 2025 Resolving State Compliance achieved 32 October 30, 2025 Informal State Violation/Reminder Notice 33 October 30, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 655 · Trichloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end October 23, 2025 · first reported February 23, 2026 · EPA return-to-compliance field October 23, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 34 October 23, 2025 Resolving State Compliance achieved 32 October 30, 2025 Informal State Violation/Reminder Notice 33 October 30, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 654 · 1,2-Dichloropropane · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end October 23, 2025 · first reported February 23, 2026 · EPA return-to-compliance field October 23, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 34 October 23, 2025 Resolving State Compliance achieved 32 October 30, 2025 Informal State Violation/Reminder Notice 33 October 30, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 653 · Carbon tetrachloride · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end October 23, 2025 · first reported February 23, 2026 · EPA return-to-compliance field October 23, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 34 October 23, 2025 Resolving State Compliance achieved 32 October 30, 2025 Informal State Violation/Reminder Notice 33 October 30, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 652 · 1,1,1-Trichloroethane · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end October 23, 2025 · first reported February 23, 2026 · EPA return-to-compliance field October 23, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 34 October 23, 2025 Resolving State Compliance achieved 32 October 30, 2025 Informal State Violation/Reminder Notice 33 October 30, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 651 · 1,2-Dichloroethane · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end October 23, 2025 · first reported February 23, 2026 · EPA return-to-compliance field October 23, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 34 October 23, 2025 Resolving State Compliance achieved 32 October 30, 2025 Informal State Violation/Reminder Notice 33 October 30, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 650 · trans-1,2-Dichloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end October 23, 2025 · first reported February 23, 2026 · EPA return-to-compliance field October 23, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 34 October 23, 2025 Resolving State Compliance achieved 32 October 30, 2025 Informal State Violation/Reminder Notice 33 October 30, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 649 · 1,1-Dichloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end October 23, 2025 · first reported February 23, 2026 · EPA return-to-compliance field October 23, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 34 October 23, 2025 Resolving State Compliance achieved 32 October 30, 2025 Informal State Violation/Reminder Notice 33 October 30, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 648 · Vinyl chloride · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end October 23, 2025 · first reported February 23, 2026 · EPA return-to-compliance field October 23, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 34 October 23, 2025 Resolving State Compliance achieved 32 October 30, 2025 Informal State Violation/Reminder Notice 33 October 30, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 647 · p-Dichlorobenzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end October 23, 2025 · first reported February 23, 2026 · EPA return-to-compliance field October 23, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 34 October 23, 2025 Resolving State Compliance achieved 32 October 30, 2025 Informal State Violation/Reminder Notice 33 October 30, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 646 · o-Dichlorobenzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end October 23, 2025 · first reported February 23, 2026 · EPA return-to-compliance field October 23, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 34 October 23, 2025 Resolving State Compliance achieved 32 October 30, 2025 Informal State Violation/Reminder Notice 33 October 30, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 645 · DICHLOROMETHANE · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end October 23, 2025 · first reported February 23, 2026 · EPA return-to-compliance field October 23, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 34 October 23, 2025 Resolving State Compliance achieved 32 October 30, 2025 Informal State Violation/Reminder Notice 33 October 30, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 644 · Xylenes, Total · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end October 23, 2025 · first reported February 23, 2026 · EPA return-to-compliance field October 23, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 34 October 23, 2025 Resolving State Compliance achieved 32 October 30, 2025 Informal State Violation/Reminder Notice 33 October 30, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 643 · cis-1,2-Dichloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end October 23, 2025 · first reported February 23, 2026 · EPA return-to-compliance field October 23, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 34 October 23, 2025 Resolving State Compliance achieved 32 October 30, 2025 Informal State Violation/Reminder Notice 33 October 30, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 642 · 1,2,4-Trichlorobenzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end October 23, 2025 · first reported February 23, 2026 · EPA return-to-compliance field October 23, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 34 October 23, 2025 Resolving State Compliance achieved 32 October 30, 2025 Informal State Violation/Reminder Notice 33 October 30, 2025 Informal State Public Notification requested
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