AZ0402110 · Arizona
CS WINCHESTER WATER COMPANY
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 9
- EPA health-based flag
- 2
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 4
Counties listed by EPA · Cochise County, Arizona
Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.
Violations and what followed
Among 8 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 136.5 days. The interval uses the reporting periods and dates on file.
EPA health-based flag · Resolved
Treatment Technique, Level 1 Assessment (RTCR)Violation 8535 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start September 14, 2025 · period end February 26, 2026 · first reported February 13, 2026 · EPA return-to-compliance field February 26, 2026
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5656 January 27, 2026 Informal State Violation/Reminder Notice 5657 January 27, 2026 Informal State Public Notification requested 5659 February 26, 2026 Resolving State Compliance achieved 5660 February 26, 2026 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, Source Water (GWR)Violation 8532 · E. COLI · Ground Water RuleNoncompliance period start August 10, 2023 · period end September 14, 2023 · first reported November 15, 2023 · EPA return-to-compliance field September 14, 2023
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5651 September 14, 2023 Informal State Violation/Reminder Notice 5652 September 14, 2023 Informal State Public Notification requested 5654 September 14, 2023 Resolving State Compliance achieved 5655 July 1, 2024 Informal State Public Notification received Monitoring or reporting · Resolved
Report Sample Result/Fail Monitor (RTCR)Violation 8531 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start April 1, 2023 · period end May 19, 2023 · first reported August 14, 2023 · EPA return-to-compliance field May 19, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5646 May 18, 2023 Informal State Violation/Reminder Notice 5648 May 19, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 8530 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start January 1, 2023 · period end March 20, 2023 · first reported May 15, 2023 · EPA return-to-compliance field March 20, 2023
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5639 February 16, 2023 Informal State Violation/Reminder Notice 5641 February 16, 2023 Informal State Violation/Reminder Notice 5644 March 20, 2023 Resolving State Compliance achieved EPA health-based flag · Resolved
Treatment Technique, Level 1 Assessment (RTCR)Violation 8529 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start October 3, 2022 · period end January 19, 2023 · first reported February 15, 2023 · EPA return-to-compliance field January 19, 2023
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5632 December 29, 2022 Informal State Violation/Reminder Notice 5633 December 29, 2022 Informal State Public Notification requested 5638 January 19, 2023 Resolving State Compliance achieved 5645 May 2, 2023 Informal State Public Notification received Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 8528 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start October 2, 2022 · period end August 16, 2023 · first reported February 15, 2023 · EPA return-to-compliance field August 16, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5630 October 18, 2022 Informal State Violation/Reminder Notice 5650 August 16, 2023 Resolving State Compliance achieved Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 8527 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2022 · period end August 16, 2023 · first reported November 16, 2022 · EPA return-to-compliance field August 16, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5628 August 8, 2022 Informal State Violation/Reminder Notice 5649 August 16, 2023 Resolving State Compliance achieved Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 8525 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start October 2, 2021 · period end July 24, 2021 · first reported February 16, 2022 · EPA return-to-compliance field July 24, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5625 July 24, 2021 Resolving State Compliance achieved 5626 November 15, 2021 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring, RegularViolation 8526 · Nitrate · Nitrate RuleNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported May 16, 2022 · EPA return-to-compliance field December 31, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5636 February 17, 2022 Informal State Violation/Reminder Notice 5635 January 5, 2023 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