AZ0402043 · Arizona
MONTE VISTA WATER COMPANY
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 18
- EPA health-based flag
- 7
- Health-based records unresolved in this snapshot
- 1
- Monitoring and reporting records
- 5
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 14 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.
EPA health-based flag · Unaddressed by formal action
Treatment Technique, Level 1 Assessment (RTCR)Violation 7082 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start May 10, 2026 · first reported August 14, 2026
No linked action row appears in the records shown.Monitoring or reporting · Archived
Monitoring and Reporting (DBP)Violation 7079 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start June 1, 2026 · period end June 30, 2026 · first reported August 14, 2026 · EPA return-to-compliance field June 30, 2026
No linked action row appears in the records shown.Monitoring or reporting · Archived
Monitoring and Reporting (DBP)Violation 7080 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start May 1, 2026 · period end May 31, 2026 · first reported August 14, 2026 · EPA return-to-compliance field May 31, 2026
No linked action row appears in the records shown.Monitoring or reporting · Archived
Monitoring and Reporting (DBP)Violation 7081 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2026 · period end April 30, 2026 · first reported August 14, 2026 · EPA return-to-compliance field April 30, 2026
No linked action row appears in the records shown.Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 7077 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start January 1, 2026 · period end March 19, 2026 · first reported May 14, 2026 · EPA return-to-compliance field March 19, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1788 March 19, 2026 Informal State Violation/Reminder Notice 1789 March 19, 2026 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 7076 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start December 20, 2024 · period end January 3, 2025 · first reported February 18, 2025 · EPA return-to-compliance field January 3, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1784 January 3, 2025 Resolving State Compliance achieved 1785 January 9, 2025 Informal State Violation/Reminder Notice EPA health-based flag · Resolved
LSL InventoryViolation 7075 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance period start October 17, 2024 · period end December 24, 2025 · first reported February 18, 2025 · EPA return-to-compliance field December 24, 2025
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1774 November 12, 2024 Informal State Violation/Reminder Notice 1775 November 12, 2024 Informal State Public Notification requested 1782 January 3, 2025 Informal State Public Notification received 1787 December 24, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
LSL ReportingViolation 7074 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance period start October 17, 2024 · period end December 24, 2025 · first reported February 18, 2025 · EPA return-to-compliance field December 24, 2025
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1771 November 12, 2024 Informal State Violation/Reminder Notice 1772 November 12, 2024 Informal State Public Notification requested 1783 January 3, 2025 Informal State Public Notification received 1787 December 24, 2025 Resolving State Compliance achieved Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 7073 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start October 2, 2024 · period end December 20, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 20, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1769 October 8, 2024 Informal State Violation/Reminder Notice 1781 December 20, 2024 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 7072 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start April 5, 2024 · period end December 20, 2024 · first reported August 14, 2024 · EPA return-to-compliance field December 20, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1765 May 6, 2024 Informal State Violation/Reminder Notice 1779 December 20, 2024 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 7070 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start January 18, 2024 · period end December 20, 2024 · first reported May 15, 2024 · EPA return-to-compliance field December 20, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1760 February 8, 2024 Informal State Violation/Reminder Notice 1777 December 20, 2024 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 7071 · 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
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1756 December 7, 2023 Formal State Administrative/Compliance Order without penalty issued 1762 March 5, 2024 Informal State Violation/Reminder Notice 1763 March 5, 2024 Informal State Public Notification requested 1768 September 19, 2024 Resolving State Compliance achieved 1780 December 20, 2024 Informal State Public Notification received Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 7068 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start October 2, 2023 · period end October 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field October 31, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1753 October 11, 2023 Informal State Violation/Reminder Notice 1755 October 31, 2023 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 7069 · Arsenic · Arsenic RuleNoncompliance period start October 1, 2023 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1756 December 7, 2023 Formal State Administrative/Compliance Order without penalty issued 1757 December 18, 2023 Informal State Violation/Reminder Notice 1758 December 18, 2023 Informal State Public Notification requested 1768 September 19, 2024 Resolving State Compliance achieved 1778 December 20, 2024 Informal State Public Notification received Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 7063 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start October 2, 2020 · period end December 13, 2022 · first reported February 12, 2021 · EPA return-to-compliance field December 13, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1752 May 11, 2021 Informal State Public Notification received 1751 December 13, 2022 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 7065 · Arsenic · Arsenic RuleNoncompliance period start July 1, 2020 · period end September 30, 2020 · first reported February 2, 2021 · EPA return-to-compliance field September 30, 2020
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1750 November 4, 2020 Resolving State Compliance achieved 1741 November 20, 2020 Informal State Violation/Reminder Notice 1742 November 20, 2020 Informal State Public Notification requested EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 7064 · Arsenic · Arsenic RuleNoncompliance period start April 1, 2020 · period end June 30, 2020 · first reported February 2, 2021 · EPA return-to-compliance field June 30, 2020
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1750 November 4, 2020 Resolving State Compliance achieved 1737 November 20, 2020 Informal State Violation/Reminder Notice 1738 November 20, 2020 Informal State Public Notification requested EPA health-based flag · Resolved
Failure To Address DeficiencyViolation 7078 · Groundwater Rule · Ground Water RuleNoncompliance period start August 15, 2018 · period end April 15, 2026 · first reported May 14, 2026 · EPA return-to-compliance field April 15, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1791 April 15, 2026 Informal State Violation/Reminder Notice 1792 April 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