CO0146588 · Colorado
OURAY CITY OF
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 40
- EPA health-based flag
- 2
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 32
Counties listed by EPA · Ouray 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 38 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 365 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Archived
Monitoring, Source Water (LT2)Violation 4008434 · E. COLI · Long Term 2 Enhanced Surface Water Treatment RuleNoncompliance period start May 1, 2026 · period end May 31, 2026 · first reported September 15, 2026 · EPA return-to-compliance field May 31, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036512 July 15, 2026 Informal State Violation/Reminder Notice 4036513 July 15, 2026 Informal State Public Notification requested EPA health-based flag · Archived
Treatment Technique (SWTR and GWR)Violation 4008430 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start April 1, 2026 · period end April 30, 2026 · first reported May 27, 2026 · EPA return-to-compliance field April 30, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036501 April 29, 2026 Informal State Violation/Reminder Notice 4036502 April 29, 2026 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, Turbidity (Enhanced SWTR)Violation 4008429 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment RuleNoncompliance period start March 1, 2026 · period end March 31, 2026 · first reported May 27, 2026 · EPA return-to-compliance field March 31, 2026
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036499 April 16, 2026 Informal State Violation/Reminder Notice 4036500 April 16, 2026 Informal State Public Notification requested 4036509 May 7, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 4008428 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start March 1, 2026 · period end March 31, 2026 · first reported May 27, 2026 · EPA return-to-compliance field March 31, 2026
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036497 April 16, 2026 Informal State Violation/Reminder Notice 4036498 April 16, 2026 Informal State Public Notification requested 4036509 May 7, 2026 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation without NPDWR ViolationViolation 4008427 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start February 5, 2026 · period end March 2, 2026 · first reported May 27, 2026 · EPA return-to-compliance field March 2, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036495 February 27, 2026 Informal State Violation/Reminder Notice 4036496 March 2, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Notification, Known or Potential LSLViolation 4008426 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance period start July 2, 2025 · period end July 9, 2025 · first reported November 17, 2025 · EPA return-to-compliance field July 9, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036494 July 9, 2025 Resolving State Compliance achieved 4036492 August 20, 2025 Informal State Violation/Reminder Notice 4036493 August 20, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 4008401 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start July 1, 2024 · period end July 31, 2024 · first reported August 14, 2024 · EPA return-to-compliance field July 31, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036479 August 13, 2024 Informal State Violation/Reminder Notice 4036480 August 13, 2024 Informal State Public Notification requested 4036482 August 14, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 4008423 · Styrene · Volatile Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036483 January 14, 2025 Informal State Violation/Reminder Notice 4036484 January 14, 2025 Informal State Public Notification requested 4036485 February 27, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 4008422 · Ethylbenzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036483 January 14, 2025 Informal State Violation/Reminder Notice 4036484 January 14, 2025 Informal State Public Notification requested 4036485 February 27, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 4008421 · Toluene · Volatile Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036483 January 14, 2025 Informal State Violation/Reminder Notice 4036484 January 14, 2025 Informal State Public Notification requested 4036485 February 27, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 4008420 · Benzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036483 January 14, 2025 Informal State Violation/Reminder Notice 4036484 January 14, 2025 Informal State Public Notification requested 4036485 February 27, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 4008419 · CHLOROBENZENE · Volatile Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036483 January 14, 2025 Informal State Violation/Reminder Notice 4036484 January 14, 2025 Informal State Public Notification requested 4036485 February 27, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 4008418 · Tetrachloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036483 January 14, 2025 Informal State Violation/Reminder Notice 4036484 January 14, 2025 Informal State Public Notification requested 4036485 February 27, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 4008417 · 1,1,2-Trichloroethane · Volatile Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036483 January 14, 2025 Informal State Violation/Reminder Notice 4036484 January 14, 2025 Informal State Public Notification requested 4036485 February 27, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 4008416 · Trichloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036483 January 14, 2025 Informal State Violation/Reminder Notice 4036484 January 14, 2025 Informal State Public Notification requested 4036485 February 27, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 4008415 · 1,2-Dichloropropane · Volatile Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036483 January 14, 2025 Informal State Violation/Reminder Notice 4036484 January 14, 2025 Informal State Public Notification requested 4036485 February 27, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 4008414 · Carbon tetrachloride · Volatile Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036483 January 14, 2025 Informal State Violation/Reminder Notice 4036484 January 14, 2025 Informal State Public Notification requested 4036485 February 27, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 4008413 · 1,1,1-Trichloroethane · Volatile Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036483 January 14, 2025 Informal State Violation/Reminder Notice 4036484 January 14, 2025 Informal State Public Notification requested 4036485 February 27, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 4008412 · 1,2-Dichloroethane · Volatile Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036483 January 14, 2025 Informal State Violation/Reminder Notice 4036484 January 14, 2025 Informal State Public Notification requested 4036485 February 27, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 4008411 · trans-1,2-Dichloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036483 January 14, 2025 Informal State Violation/Reminder Notice 4036484 January 14, 2025 Informal State Public Notification requested 4036485 February 27, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 4008410 · 1,1-Dichloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036483 January 14, 2025 Informal State Violation/Reminder Notice 4036484 January 14, 2025 Informal State Public Notification requested 4036485 February 27, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 4008409 · Vinyl chloride · Volatile Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036483 January 14, 2025 Informal State Violation/Reminder Notice 4036484 January 14, 2025 Informal State Public Notification requested 4036485 February 27, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 4008408 · p-Dichlorobenzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036483 January 14, 2025 Informal State Violation/Reminder Notice 4036484 January 14, 2025 Informal State Public Notification requested 4036485 February 27, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 4008407 · o-Dichlorobenzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036483 January 14, 2025 Informal State Violation/Reminder Notice 4036484 January 14, 2025 Informal State Public Notification requested 4036485 February 27, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 4008406 · DICHLOROMETHANE · Volatile Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036483 January 14, 2025 Informal State Violation/Reminder Notice 4036484 January 14, 2025 Informal State Public Notification requested 4036485 February 27, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 4008405 · Xylenes, Total · Volatile Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036483 January 14, 2025 Informal State Violation/Reminder Notice 4036484 January 14, 2025 Informal State Public Notification requested 4036485 February 27, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 4008404 · cis-1,2-Dichloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036483 January 14, 2025 Informal State Violation/Reminder Notice 4036484 January 14, 2025 Informal State Public Notification requested 4036485 February 27, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 4008403 · 1,2,4-Trichlorobenzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036483 January 14, 2025 Informal State Violation/Reminder Notice 4036484 January 14, 2025 Informal State Public Notification requested 4036485 February 27, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 4008399 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start August 1, 2023 · period end August 31, 2023 · first reported November 15, 2023 · EPA return-to-compliance field August 31, 2023
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036478 September 11, 2023 Resolving State Compliance achieved 4036476 September 22, 2023 Informal State Violation/Reminder Notice 4036477 September 22, 2023 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 4008400 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2023 · period end September 11, 2023 · first reported May 16, 2024 · EPA return-to-compliance field September 11, 2023
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036478 September 11, 2023 Resolving State Compliance achieved 4036476 September 22, 2023 Informal State Violation/Reminder Notice 4036477 September 22, 2023 Informal State Public Notification requested EPA health-based flag · Resolved
Failure to Filter (SWTR)Violation 4008398 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start October 2, 2022 · period end September 23, 2024 · first reported November 16, 2022 · EPA return-to-compliance field September 23, 2024
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036472 October 7, 2022 Informal State Violation/Reminder Notice 4036473 October 7, 2022 Informal State Public Notification requested 4036474 November 3, 2022 Informal State Public Notification received 4036475 February 13, 2023 Formal State Administrative/Compliance Order with penalty issued 4036481 September 23, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 4008397 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2021 · period end December 31, 2021 · first reported February 23, 2022 · EPA return-to-compliance field December 31, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036465 February 1, 2022 Informal State Violation/Reminder Notice 4036466 February 1, 2022 Informal State Public Notification requested 4036467 February 9, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 4008396 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2021 · period end December 31, 2021 · first reported February 23, 2022 · EPA return-to-compliance field December 31, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036465 February 1, 2022 Informal State Violation/Reminder Notice 4036466 February 1, 2022 Informal State Public Notification requested 4036467 February 9, 2022 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation without NPDWR ViolationViolation 4008395 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start July 22, 2021 · period end October 21, 2021 · first reported August 18, 2021 · EPA return-to-compliance field October 21, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036462 August 12, 2021 Informal State Violation/Reminder Notice 4036469 October 21, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation without NPDWR ViolationViolation 4008391 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start April 22, 2021 · period end October 21, 2021 · first reported August 18, 2021 · EPA return-to-compliance field October 21, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036459 May 21, 2021 Informal State Violation/Reminder Notice 4036469 October 21, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 4008394 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2021 · period end June 30, 2021 · first reported August 18, 2021 · EPA return-to-compliance field June 30, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036460 July 20, 2021 Informal State Violation/Reminder Notice 4036461 July 20, 2021 Informal State Public Notification requested 4036464 August 10, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 4008393 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2021 · period end June 30, 2021 · first reported August 18, 2021 · EPA return-to-compliance field June 30, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036460 July 20, 2021 Informal State Violation/Reminder Notice 4036461 July 20, 2021 Informal State Public Notification requested 4036464 August 10, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation without NPDWR ViolationViolation 4008392 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start January 22, 2021 · period end October 21, 2021 · first reported August 18, 2021 · EPA return-to-compliance field October 21, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036459 May 21, 2021 Informal State Violation/Reminder Notice 4036469 October 21, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation without NPDWR ViolationViolation 4008389 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start November 8, 2020 · period end October 21, 2021 · first reported February 16, 2021 · EPA return-to-compliance field October 21, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036456 January 27, 2021 Informal State Violation/Reminder Notice 4036469 October 21, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation without NPDWR ViolationViolation 4008388 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start August 8, 2020 · period end October 21, 2021 · first reported November 16, 2020 · EPA return-to-compliance field October 21, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036452 October 16, 2020 Informal State Violation/Reminder Notice 4036469 October 21, 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