AZ0403312 · Arizona
CS HYDRO RESOURCES-TUSAYAN
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 13
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 11
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 13 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 89 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 16539 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start January 1, 2026 · period end May 6, 2026 · first reported May 14, 2026 · EPA return-to-compliance field May 6, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9510 April 2, 2026 Informal State Violation/Reminder Notice 9512 May 6, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Notification, Known or Potential LSLViolation 16538 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance period start July 2, 2025 · period end January 27, 2026 · first reported February 13, 2026 · EPA return-to-compliance field January 27, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9507 January 27, 2026 Informal State Violation/Reminder Notice 9508 January 27, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 16535 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start March 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 9495 April 30, 2024 Informal State Violation/Reminder Notice 9506 May 29, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 16534 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start February 1, 2024 · period end February 29, 2024 · first reported May 15, 2024 · EPA return-to-compliance field February 29, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9498 April 30, 2024 Informal State Violation/Reminder Notice 9506 May 29, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 16536 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2024 · period end January 31, 2024 · first reported May 15, 2024 · EPA return-to-compliance field January 31, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9504 April 30, 2024 Informal State Violation/Reminder Notice 9506 May 29, 2024 Resolving State Compliance achieved Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 16530 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start October 2, 2023 · period end November 6, 2023 · first reported March 29, 2024 · EPA return-to-compliance field November 6, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9483 October 20, 2023 Informal State Violation/Reminder Notice 9485 November 6, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 16529 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start January 1, 2023 · period end February 17, 2023 · first reported May 15, 2023 · EPA return-to-compliance field February 17, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9476 February 17, 2023 Informal State Violation/Reminder Notice 9478 February 17, 2023 Resolving State Compliance achieved Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 16522 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start October 2, 2022 · period end October 29, 2022 · first reported February 15, 2023 · EPA return-to-compliance field October 29, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9459 October 24, 2022 Informal State Violation/Reminder Notice 9468 October 29, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 16526 · 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 9473 February 10, 2023 Informal State Violation/Reminder Notice 9475 February 10, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 16525 · 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 9479 November 22, 2022 Informal State Violation/Reminder Notice 9475 February 10, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 16519 · 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 9481 August 8, 2022 Informal State Violation/Reminder Notice 9475 February 10, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 16517 · 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 9440 May 11, 2021 Resolving State Compliance achieved 9438 May 25, 2021 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 16513 · 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 9433 October 30, 2020 Resolving State Compliance achieved 9431 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