CO0109001 · Colorado
ARAPAHOE WC
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 6
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 3
Counties listed by EPA · Cheyenne 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 6 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 203 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 1002938 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start January 1, 2025 · period end January 27, 2025 · first reported February 18, 2025 · EPA return-to-compliance field January 27, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1018767 January 16, 2025 Informal State Violation/Reminder Notice 1018768 January 16, 2025 Informal State Public Notification requested 1018769 January 27, 2025 Resolving State Compliance achieved Other or unclassified · Resolved
Sample Siting Plan Errors (RTCR)Violation 1002937 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start February 14, 2024 · period end March 27, 2024 · first reported May 16, 2024 · EPA return-to-compliance field March 27, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1018763 February 14, 2024 Informal State Violation/Reminder Notice 1018764 February 14, 2024 Informal State Public Notification requested 1018766 March 27, 2024 Resolving State Compliance achieved Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 1002933 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2021 · period end August 3, 2021 · first reported August 18, 2021 · EPA return-to-compliance field August 3, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1018753 August 2, 2021 Informal State Violation/Reminder Notice 1018754 August 2, 2021 Informal State Public Notification requested 1018755 August 3, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 1002935 · Nitrate · Nitrate RuleNoncompliance period start January 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 1018758 January 28, 2022 Informal State Violation/Reminder Notice 1018759 January 28, 2022 Informal State Public Notification requested 1018760 February 15, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 1002934 · Nitrate · Nitrate RuleNoncompliance period start January 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 1018756 January 28, 2022 Informal State Violation/Reminder Notice 1018757 January 28, 2022 Informal State Public Notification requested 1018760 February 15, 2022 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation without NPDWR ViolationViolation 1002932 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start October 17, 2019 · period end May 15, 2026 · first reported February 16, 2021 · EPA return-to-compliance field May 15, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1018752 January 28, 2021 Informal State Violation/Reminder Notice 1018770 May 15, 2026 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