AZ0408149 · Arizona
CS WHITE HILLS WATER COMPANY UNIT 1
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 18
- EPA health-based flag
- 2
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 10
Counties listed by EPA · Mohave 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 16 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 91 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Archived
Monitoring and Reporting (DBP)Violation 6023 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2025 · period end June 30, 2026 · first reported February 24, 2026 · EPA return-to-compliance field June 30, 2026
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 964 October 24, 2025 Informal State Violation/Reminder Notice 965 October 24, 2025 Informal State Public Notification requested 968 May 12, 2026 Informal State Public Notification received Monitoring or reporting · Archived
Monitoring and Reporting (DBP)Violation 6022 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2025 · period end June 30, 2026 · first reported February 24, 2026 · EPA return-to-compliance field June 30, 2026
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 964 October 24, 2025 Informal State Violation/Reminder Notice 965 October 24, 2025 Informal State Public Notification requested 968 May 12, 2026 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 6021 · Arsenic · Arsenic RuleNoncompliance period start July 1, 2025 · period end September 30, 2025 · first reported February 24, 2026 · EPA return-to-compliance field September 30, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 961 October 24, 2025 Informal State Violation/Reminder Notice 967 November 3, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 6020 · Arsenic · Arsenic RuleNoncompliance period start April 1, 2025 · period end June 30, 2025 · first reported February 24, 2026 · EPA return-to-compliance field June 30, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 956 July 28, 2025 Informal State Violation/Reminder Notice 959 August 9, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 6019 · Arsenic · Arsenic RuleNoncompliance period start October 1, 2024 · period end December 31, 2024 · first reported February 24, 2026 · EPA return-to-compliance field December 31, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 952 February 4, 2025 Informal State Violation/Reminder Notice 955 February 13, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 6017 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2023 · period end December 31, 2023 · first reported February 24, 2026 · 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 946 February 20, 2024 Informal State Violation/Reminder Notice 950 February 21, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 6016 · Arsenic · Arsenic RuleNoncompliance period start July 1, 2023 · period end September 30, 2023 · first reported February 24, 2026 · 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 943 November 1, 2023 Informal State Violation/Reminder Notice 945 November 15, 2023 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation without NPDWR ViolationViolation 6015 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start March 23, 2023 · period end May 9, 2024 · first reported February 24, 2026 · EPA return-to-compliance field May 9, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 938 April 17, 2023 Informal State Violation/Reminder Notice 951 May 9, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 6014 · Arsenic · Arsenic RuleNoncompliance period start October 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 934 January 26, 2022 Resolving State Compliance achieved 935 March 3, 2022 Informal State Violation/Reminder Notice Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 6012 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start July 2, 2021 · period end October 8, 2021 · first reported November 10, 2021 · EPA return-to-compliance field October 8, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 922 August 16, 2021 Informal State Violation/Reminder Notice 928 October 8, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Follow-up Or Routine LCR Tap M/RViolation 6013 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start July 1, 2021 · period end October 7, 2021 · first reported November 10, 2021 · EPA return-to-compliance field October 7, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 924 August 17, 2021 Informal State Violation/Reminder Notice 925 August 17, 2021 Informal State Public Notification requested 930 October 7, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 6011 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start June 17, 2021 · period end October 8, 2021 · first reported August 12, 2021 · EPA return-to-compliance field October 8, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 920 July 19, 2021 Informal State Violation/Reminder Notice 928 October 8, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 6008 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start March 11, 2021 · period end March 12, 2021 · first reported May 17, 2021 · EPA return-to-compliance field March 12, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 910 March 12, 2021 Resolving State Compliance achieved 908 April 15, 2021 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring, RegularViolation 6010 · Arsenic · Arsenic RuleNoncompliance period start January 1, 2021 · period end March 31, 2021 · first reported August 12, 2021 · EPA return-to-compliance field March 31, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 915 May 17, 2021 Informal State Violation/Reminder Notice 916 May 17, 2021 Informal State Public Notification requested 919 May 19, 2021 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 6009 · Arsenic · Arsenic RuleNoncompliance period start January 1, 2021 · period end March 31, 2021 · first reported August 12, 2021 · EPA return-to-compliance field March 31, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 849 October 11, 2019 Formal State Administrative/Compliance Order without penalty issued 911 May 17, 2021 Informal State Violation/Reminder Notice 912 May 17, 2021 Informal State Public Notification requested 929 October 7, 2021 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 6007 · Arsenic · Arsenic RuleNoncompliance period start October 1, 2020 · period end December 31, 2020 · first reported February 12, 2021 · EPA return-to-compliance field December 31, 2020
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 849 October 11, 2019 Formal State Administrative/Compliance Order without penalty issued 898 February 8, 2021 Informal State Violation/Reminder Notice 899 February 8, 2021 Informal State Public Notification requested 929 October 7, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 6006 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start July 1, 2020 · period end March 17, 2021 · first reported November 16, 2020 · EPA return-to-compliance field March 17, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 904 October 19, 2020 Informal State Violation/Reminder Notice 906 March 17, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 6005 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start April 1, 2020 · period end March 17, 2021 · first reported November 16, 2020 · EPA return-to-compliance field March 17, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 902 October 19, 2020 Informal State Violation/Reminder Notice 906 March 17, 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