AZ0410208 · Arizona
SIERRITA MOUNTAIN WATER COOP
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 6
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 5
Counties listed by EPA · Pima 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 5 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 90 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Follow-up Or Routine LCR Tap M/RViolation 8772 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start October 1, 2025 · period end June 24, 2026 · first reported February 13, 2026 · EPA return-to-compliance field June 24, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5751 November 5, 2025 Informal State Violation/Reminder Notice 5762 June 24, 2026 Resolving State Compliance achieved Monitoring or reporting · Unaddressed by formal action
Notification, Known or Potential LSLViolation 8775 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance period start July 2, 2025 · first reported February 13, 2026
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5757 February 5, 2026 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 8774 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start May 1, 2025 · period end May 31, 2025 · first reported November 17, 2025 · EPA return-to-compliance field May 31, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5754 November 5, 2025 Informal State Violation/Reminder Notice 5755 November 5, 2025 Resolving State Compliance achieved Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 8771 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2023 · period end October 6, 2023 · first reported November 15, 2023 · EPA return-to-compliance field October 6, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5745 October 6, 2023 Informal State Violation/Reminder Notice 5747 October 6, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 8770 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start January 1, 2023 · period end February 15, 2023 · first reported May 15, 2023 · EPA return-to-compliance field February 15, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5742 February 15, 2023 Informal State Violation/Reminder Notice 5744 February 15, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 8768 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2022 · period end June 30, 2022 · first reported September 29, 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 5741 July 12, 2022 Resolving State Compliance achieved 5738 August 18, 2022 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