AZ0403084 · Arizona
GRAND CANYON JUNCTION HYDRO
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 21
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 16
Counties listed by EPA · Coconino 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 19 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 · Resolved
Follow-up Or Routine LCR Tap M/RViolation 5901 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start October 1, 2025 · period end June 22, 2026 · first reported February 13, 2026 · EPA return-to-compliance field June 22, 2026
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1684 October 17, 2025 Informal State Violation/Reminder Notice 1685 October 17, 2025 Informal State Public Notification requested 1691 January 10, 2026 Informal State Public Notification received 1692 June 22, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 5903 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2025 · period end December 11, 2025 · first reported November 17, 2025 · EPA return-to-compliance field December 11, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1687 October 24, 2025 Informal State Violation/Reminder Notice 1690 December 11, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 5902 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2025 · period end December 11, 2025 · first reported November 17, 2025 · EPA return-to-compliance field December 11, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1687 October 24, 2025 Informal State Violation/Reminder Notice 1690 December 11, 2025 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 5898 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start October 25, 2024 · period end November 9, 2023 · first reported February 18, 2025 · EPA return-to-compliance field November 9, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1679 November 9, 2023 Resolving State Compliance achieved 1677 November 26, 2024 Informal State Violation/Reminder Notice Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 5893 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start October 2, 2023 · period end March 6, 2024 · first reported March 29, 2024 · EPA return-to-compliance field March 6, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1660 October 20, 2023 Informal State Violation/Reminder Notice 1675 March 6, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 5895 · 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 1676 January 17, 2024 Resolving State Compliance achieved 1665 February 16, 2024 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 5894 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start September 1, 2023 · period end September 30, 2023 · first reported November 15, 2023 · EPA return-to-compliance field September 30, 2023
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1662 October 25, 2023 Informal State Violation/Reminder Notice 1663 October 25, 2023 Informal State Public Notification requested 1674 March 13, 2024 Resolving State Compliance achieved 1680 December 4, 2024 Informal State Public Notification received Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 5892 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start August 11, 2023 · period end June 30, 2023 · first reported November 15, 2023 · EPA return-to-compliance field June 30, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1682 June 30, 2023 Resolving State Compliance achieved 1658 September 14, 2023 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 5891 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start January 1, 2023 · period end July 14, 2023 · first reported May 15, 2023 · EPA return-to-compliance field July 14, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1654 February 17, 2023 Informal State Violation/Reminder Notice 1681 July 14, 2023 Resolving State Compliance achieved Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 5882 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start October 2, 2022 · period end December 22, 2022 · first reported February 15, 2023 · EPA return-to-compliance field December 22, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1625 October 24, 2022 Informal State Violation/Reminder Notice 1646 December 22, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 5890 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2022 · period end December 31, 2022 · first reported February 15, 2023 · EPA return-to-compliance field December 31, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1651 February 10, 2023 Informal State Violation/Reminder Notice 1657 July 14, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 5883 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start September 1, 2022 · period end September 30, 2022 · first reported November 16, 2022 · EPA return-to-compliance field September 30, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1630 October 17, 2022 Resolving State Compliance achieved 1627 October 27, 2022 Informal State Violation/Reminder Notice 1628 October 27, 2022 Informal State Public Notification requested 1631 November 1, 2022 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 5884 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2022 · period end September 30, 2022 · first reported December 29, 2022 · EPA return-to-compliance field September 30, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1636 November 22, 2022 Informal State Violation/Reminder Notice 1639 November 25, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 5881 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start July 1, 2022 · period end July 31, 2022 · first reported November 16, 2022 · EPA return-to-compliance field July 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1640 August 12, 2022 Resolving State Compliance achieved 1622 August 25, 2022 Informal State Violation/Reminder Notice 1623 August 25, 2022 Informal State Public Notification requested 1683 September 29, 2023 Informal State Public Notification received Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 5877 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2022 · period end July 14, 2022 · first reported November 16, 2022 · EPA return-to-compliance field July 14, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1611 July 14, 2022 Resolving State Compliance achieved 1609 August 2, 2022 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 5879 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2022 · period end June 30, 2022 · first reported August 15, 2022 · EPA return-to-compliance field June 30, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1618 August 4, 2022 Informal State Violation/Reminder Notice 1639 November 25, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Report Sample Result/Fail Monitor (RTCR)Violation 5875 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start October 1, 2021 · period end November 22, 2021 · first reported February 16, 2022 · EPA return-to-compliance field November 22, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1605 November 22, 2021 Resolving State Compliance achieved 1603 November 29, 2021 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 5874 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start September 1, 2021 · period end September 30, 2021 · first reported November 10, 2021 · EPA return-to-compliance field September 30, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1600 November 2, 2021 Informal State Violation/Reminder Notice 1601 November 2, 2021 Informal State Public Notification requested 1605 November 22, 2021 Resolving State Compliance achieved 1645 October 29, 2022 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 5876 · 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
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1606 December 2, 2021 Informal State Violation/Reminder Notice 1607 December 2, 2021 Informal State Public Notification requested 1621 August 24, 2022 Resolving State Compliance achieved 1643 October 29, 2022 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 5873 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2021 · period end March 31, 2021 · first reported August 12, 2021 · EPA return-to-compliance field March 31, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1599 May 11, 2021 Resolving State Compliance achieved 1597 May 25, 2021 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 5870 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2020 · period end September 30, 2020 · first reported February 2, 2021 · EPA return-to-compliance field September 30, 2020
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1592 October 30, 2020 Resolving State Compliance achieved 1590 November 23, 2020 Informal State Violation/Reminder Notice
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