AZ0413042 · Arizona
CS OAK CREEK PUBLIC SERVICE LLC
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 11
- EPA health-based flag
- 1
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 9
Counties listed by EPA · Yavapai 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 10 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 90.5 days. The interval uses the reporting periods and dates on file.
EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 5765 · Arsenic · Arsenic RuleNoncompliance period start April 1, 2026 · period end June 30, 2026 · first reported August 14, 2026 · EPA return-to-compliance field June 30, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2980 June 15, 2026 Informal State Violation/Reminder Notice 2981 June 15, 2026 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 5764 · Arsenic · Arsenic RuleNoncompliance period start July 1, 2025 · period end September 30, 2025 · first reported November 17, 2025 · EPA return-to-compliance field September 30, 2025
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2975 October 29, 2025 Informal State Violation/Reminder Notice 2976 October 29, 2025 Informal State Public Notification requested 2978 November 14, 2025 Resolving State Compliance achieved 2979 May 27, 2026 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 5763 · Arsenic · Arsenic RuleNoncompliance period start January 1, 2024 · period end March 31, 2024 · first reported May 15, 2024 · EPA return-to-compliance field March 31, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2970 May 9, 2024 Informal State Violation/Reminder Notice 2974 June 25, 2024 Resolving State Compliance achieved Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 5756 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start October 2, 2023 · period end November 1, 2023 · first reported March 29, 2024 · EPA return-to-compliance field November 1, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2950 October 20, 2023 Informal State Violation/Reminder Notice 2952 November 1, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 5760 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2023 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2966 February 28, 2024 Informal State Violation/Reminder Notice 2968 February 28, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 5758 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2023 · period end September 30, 2023 · first reported December 29, 2023 · EPA return-to-compliance field September 30, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2959 November 16, 2023 Informal State Violation/Reminder Notice 2973 June 25, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Report Sample Result/Fail Monitor (RTCR)Violation 5754 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start May 1, 2023 · period end July 5, 2023 · first reported August 14, 2023 · EPA return-to-compliance field July 5, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2944 July 5, 2023 Informal State Violation/Reminder Notice 2946 July 5, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 5752 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2023 · period end March 31, 2023 · first reported May 15, 2023 · EPA return-to-compliance field March 31, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2937 April 26, 2023 Informal State Violation/Reminder Notice 2943 June 28, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Report Sample Result/Fail Monitor (RTCR)Violation 5746 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start September 1, 2021 · period end November 16, 2021 · first reported November 10, 2021 · EPA return-to-compliance field November 16, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2915 November 3, 2021 Informal State Violation/Reminder Notice 2917 November 16, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 5747 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2021 · period end September 30, 2021 · first reported February 16, 2022 · EPA return-to-compliance field September 30, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2918 January 7, 2022 Resolving State Compliance achieved 2919 January 7, 2022 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 5743 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2020 · period end December 31, 2020 · first reported March 31, 2021 · EPA return-to-compliance field December 31, 2020
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2912 February 12, 2021 Informal State Violation/Reminder Notice 2914 February 12, 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