CO0118060 · Colorado
SEDALIA WSD
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 25
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 23
Counties listed by EPA · Douglas 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 4 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 42 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Archived
Monitoring, RegularViolation 3403748 · Styrene · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 2026 · EPA return-to-compliance field December 31, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4402418 January 16, 2026 Informal State Violation/Reminder Notice 4402419 January 16, 2026 Informal State Public Notification requested Monitoring or reporting · Archived
Monitoring, RegularViolation 3403747 · Ethylbenzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 2026 · EPA return-to-compliance field December 31, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4402418 January 16, 2026 Informal State Violation/Reminder Notice 4402419 January 16, 2026 Informal State Public Notification requested Monitoring or reporting · Archived
Monitoring, RegularViolation 3403746 · Toluene · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 2026 · EPA return-to-compliance field December 31, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4402418 January 16, 2026 Informal State Violation/Reminder Notice 4402419 January 16, 2026 Informal State Public Notification requested Monitoring or reporting · Archived
Monitoring, RegularViolation 3403745 · Benzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 2026 · EPA return-to-compliance field December 31, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4402418 January 16, 2026 Informal State Violation/Reminder Notice 4402419 January 16, 2026 Informal State Public Notification requested Monitoring or reporting · Archived
Monitoring, RegularViolation 3403744 · CHLOROBENZENE · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 2026 · EPA return-to-compliance field December 31, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4402418 January 16, 2026 Informal State Violation/Reminder Notice 4402419 January 16, 2026 Informal State Public Notification requested Monitoring or reporting · Archived
Monitoring, RegularViolation 3403743 · Tetrachloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 2026 · EPA return-to-compliance field December 31, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4402418 January 16, 2026 Informal State Violation/Reminder Notice 4402419 January 16, 2026 Informal State Public Notification requested Monitoring or reporting · Archived
Monitoring, RegularViolation 3403742 · 1,1,2-Trichloroethane · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 2026 · EPA return-to-compliance field December 31, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4402418 January 16, 2026 Informal State Violation/Reminder Notice 4402419 January 16, 2026 Informal State Public Notification requested Monitoring or reporting · Archived
Monitoring, RegularViolation 3403741 · Trichloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 2026 · EPA return-to-compliance field December 31, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4402418 January 16, 2026 Informal State Violation/Reminder Notice 4402419 January 16, 2026 Informal State Public Notification requested Monitoring or reporting · Archived
Monitoring, RegularViolation 3403740 · 1,2-Dichloropropane · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 2026 · EPA return-to-compliance field December 31, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4402418 January 16, 2026 Informal State Violation/Reminder Notice 4402419 January 16, 2026 Informal State Public Notification requested Monitoring or reporting · Archived
Monitoring, RegularViolation 3403739 · Carbon tetrachloride · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 2026 · EPA return-to-compliance field December 31, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4402418 January 16, 2026 Informal State Violation/Reminder Notice 4402419 January 16, 2026 Informal State Public Notification requested Monitoring or reporting · Archived
Monitoring, RegularViolation 3403738 · 1,1,1-Trichloroethane · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 2026 · EPA return-to-compliance field December 31, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4402418 January 16, 2026 Informal State Violation/Reminder Notice 4402419 January 16, 2026 Informal State Public Notification requested Monitoring or reporting · Archived
Monitoring, RegularViolation 3403737 · 1,2-Dichloroethane · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 2026 · EPA return-to-compliance field December 31, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4402418 January 16, 2026 Informal State Violation/Reminder Notice 4402419 January 16, 2026 Informal State Public Notification requested Monitoring or reporting · Archived
Monitoring, RegularViolation 3403736 · trans-1,2-Dichloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 2026 · EPA return-to-compliance field December 31, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4402418 January 16, 2026 Informal State Violation/Reminder Notice 4402419 January 16, 2026 Informal State Public Notification requested Monitoring or reporting · Archived
Monitoring, RegularViolation 3403735 · 1,1-Dichloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 2026 · EPA return-to-compliance field December 31, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4402418 January 16, 2026 Informal State Violation/Reminder Notice 4402419 January 16, 2026 Informal State Public Notification requested Monitoring or reporting · Archived
Monitoring, RegularViolation 3403734 · Vinyl chloride · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 2026 · EPA return-to-compliance field December 31, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4402418 January 16, 2026 Informal State Violation/Reminder Notice 4402419 January 16, 2026 Informal State Public Notification requested Monitoring or reporting · Archived
Monitoring, RegularViolation 3403733 · p-Dichlorobenzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 2026 · EPA return-to-compliance field December 31, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4402418 January 16, 2026 Informal State Violation/Reminder Notice 4402419 January 16, 2026 Informal State Public Notification requested Monitoring or reporting · Archived
Monitoring, RegularViolation 3403732 · o-Dichlorobenzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 2026 · EPA return-to-compliance field December 31, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4402418 January 16, 2026 Informal State Violation/Reminder Notice 4402419 January 16, 2026 Informal State Public Notification requested Monitoring or reporting · Archived
Monitoring, RegularViolation 3403731 · DICHLOROMETHANE · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 2026 · EPA return-to-compliance field December 31, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4402418 January 16, 2026 Informal State Violation/Reminder Notice 4402419 January 16, 2026 Informal State Public Notification requested Monitoring or reporting · Archived
Monitoring, RegularViolation 3403730 · Xylenes, Total · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 2026 · EPA return-to-compliance field December 31, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4402418 January 16, 2026 Informal State Violation/Reminder Notice 4402419 January 16, 2026 Informal State Public Notification requested Monitoring or reporting · Archived
Monitoring, RegularViolation 3403729 · cis-1,2-Dichloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 2026 · EPA return-to-compliance field December 31, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4402418 January 16, 2026 Informal State Violation/Reminder Notice 4402419 January 16, 2026 Informal State Public Notification requested Monitoring or reporting · Archived
Monitoring, RegularViolation 3403728 · 1,2,4-Trichlorobenzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 2026 · EPA return-to-compliance field December 31, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4402418 January 16, 2026 Informal State Violation/Reminder Notice 4402419 January 16, 2026 Informal State Public Notification requested Other or unclassified · Resolved
Public Notification Violation without NPDWR ViolationViolation 3403725 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start March 11, 2022 · period end May 7, 2022 · first reported May 17, 2022 · EPA return-to-compliance field May 7, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4402411 March 31, 2022 Informal State Violation/Reminder Notice 4402412 May 7, 2022 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation without NPDWR ViolationViolation 3403724 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start December 11, 2021 · period end May 7, 2022 · first reported May 17, 2022 · EPA return-to-compliance field May 7, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4402409 February 22, 2022 Informal State Violation/Reminder Notice 4402412 May 7, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 3403722 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start February 1, 2021 · period end February 28, 2021 · first reported May 17, 2021 · EPA return-to-compliance field February 28, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4402403 March 15, 2021 Informal State Violation/Reminder Notice 4402404 March 15, 2021 Informal State Public Notification requested 4402405 April 7, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Turbidity (Enhanced SWTR)Violation 3403721 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment RuleNoncompliance period start February 1, 2021 · period end February 28, 2021 · first reported May 17, 2021 · EPA return-to-compliance field February 28, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4402401 March 15, 2021 Informal State Violation/Reminder Notice 4402402 March 15, 2021 Informal State Public Notification requested 4402405 April 7, 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