AZ0420557 · Arizona
ADOC TUCSON
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 26
- EPA health-based flag
- 1
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 25
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 26 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 1,095 days. The interval uses the reporting periods and dates on file.
EPA health-based flag · Resolved
Failure To Address DeficiencyViolation 14554 · Groundwater Rule · Ground Water RuleNoncompliance period start December 10, 2025 · period end February 24, 2026 · first reported February 24, 2026 · EPA return-to-compliance field February 24, 2026
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2653 February 12, 2026 Informal State Violation/Reminder Notice 2654 February 12, 2026 Informal State Public Notification requested 2656 February 24, 2026 Resolving State Compliance achieved 2657 February 24, 2026 Informal State Public Notification received Monitoring or reporting · Resolved
Report Sample Result/Fail Monitor (RTCR)Violation 14553 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start October 1, 2021 · period end November 23, 2021 · first reported February 16, 2022 · EPA return-to-compliance field November 23, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2651 November 23, 2021 Resolving State Compliance achieved 2649 November 26, 2021 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring, RegularViolation 14552 · Endrin · Synthetic Organic ChemicalsNoncompliance period start January 1, 2018 · period end December 31, 2020 · first reported February 12, 2021 · EPA return-to-compliance field December 31, 2020
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2644 February 4, 2021 Informal State Violation/Reminder Notice 2645 February 4, 2021 Informal State Public Notification requested 2652 December 15, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 14551 · Carbofuran · Synthetic Organic ChemicalsNoncompliance period start January 1, 2018 · period end December 31, 2020 · first reported February 12, 2021 · EPA return-to-compliance field December 31, 2020
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2642 February 4, 2021 Informal State Violation/Reminder Notice 2652 December 15, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 14550 · LASSO · Synthetic Organic ChemicalsNoncompliance period start January 1, 2018 · period end December 31, 2020 · first reported February 12, 2021 · EPA return-to-compliance field December 31, 2020
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2640 February 4, 2021 Informal State Violation/Reminder Notice 2652 December 15, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 14549 · Heptachlor · Synthetic Organic ChemicalsNoncompliance period start January 1, 2018 · period end December 31, 2020 · first reported February 12, 2021 · EPA return-to-compliance field December 31, 2020
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2638 February 4, 2021 Informal State Violation/Reminder Notice 2652 December 15, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 14548 · Benzo(a)pyrene · Synthetic Organic ChemicalsNoncompliance period start January 1, 2018 · period end December 31, 2020 · first reported February 12, 2021 · EPA return-to-compliance field December 31, 2020
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2636 February 4, 2021 Informal State Violation/Reminder Notice 2652 December 15, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 14546 · Di(2-ethylhexyl) phthalate · Synthetic Organic ChemicalsNoncompliance period start January 1, 2018 · period end December 31, 2020 · first reported February 12, 2021 · EPA return-to-compliance field December 31, 2020
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2632 February 4, 2021 Informal State Violation/Reminder Notice 2652 December 15, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 14544 · Diquat · Synthetic Organic ChemicalsNoncompliance period start January 1, 2018 · period end December 31, 2020 · first reported February 12, 2021 · EPA return-to-compliance field December 31, 2020
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2628 February 4, 2021 Informal State Violation/Reminder Notice 2652 December 15, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 14543 · HEXACHLOROBENZENE · Synthetic Organic ChemicalsNoncompliance period start January 1, 2018 · period end December 31, 2020 · first reported February 12, 2021 · EPA return-to-compliance field December 31, 2020
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2626 February 4, 2021 Informal State Violation/Reminder Notice 2652 December 15, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 14541 · Dalapon · Synthetic Organic ChemicalsNoncompliance period start January 1, 2018 · period end December 31, 2020 · first reported February 12, 2021 · EPA return-to-compliance field December 31, 2020
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2622 February 4, 2021 Informal State Violation/Reminder Notice 2652 December 15, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 14540 · Endothall · Synthetic Organic ChemicalsNoncompliance period start January 1, 2018 · period end December 31, 2020 · first reported February 12, 2021 · EPA return-to-compliance field December 31, 2020
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2620 February 4, 2021 Informal State Violation/Reminder Notice 2652 December 15, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 14539 · OXAMYL · Synthetic Organic ChemicalsNoncompliance period start January 1, 2018 · period end December 31, 2020 · first reported February 12, 2021 · EPA return-to-compliance field December 31, 2020
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2618 February 4, 2021 Informal State Violation/Reminder Notice 2652 December 15, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 14538 · Methoxychlor · Synthetic Organic ChemicalsNoncompliance period start January 1, 2018 · period end December 31, 2020 · first reported February 12, 2021 · EPA return-to-compliance field December 31, 2020
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2616 February 4, 2021 Informal State Violation/Reminder Notice 2652 December 15, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 14537 · 2,4,5-TP · Synthetic Organic ChemicalsNoncompliance period start January 1, 2018 · period end December 31, 2020 · first reported February 12, 2021 · EPA return-to-compliance field December 31, 2020
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2614 February 4, 2021 Informal State Violation/Reminder Notice 2652 December 15, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 14535 · Glyphosate · Synthetic Organic ChemicalsNoncompliance period start January 1, 2018 · period end December 31, 2020 · first reported February 12, 2021 · EPA return-to-compliance field December 31, 2020
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2610 February 4, 2021 Informal State Violation/Reminder Notice 2652 December 15, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 14534 · Picloram · Synthetic Organic ChemicalsNoncompliance period start January 1, 2018 · period end December 31, 2020 · first reported February 12, 2021 · EPA return-to-compliance field December 31, 2020
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2608 February 4, 2021 Informal State Violation/Reminder Notice 2652 December 15, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 14533 · Atrazine · Synthetic Organic ChemicalsNoncompliance period start January 1, 2018 · period end December 31, 2020 · first reported February 12, 2021 · EPA return-to-compliance field December 31, 2020
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2606 February 4, 2021 Informal State Violation/Reminder Notice 2652 December 15, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 14532 · Di(2-ethylhexyl) adipate · Synthetic Organic ChemicalsNoncompliance period start January 1, 2018 · period end December 31, 2020 · first reported February 12, 2021 · EPA return-to-compliance field December 31, 2020
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2604 February 4, 2021 Informal State Violation/Reminder Notice 2652 December 15, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 14531 · Hexachlorocyclopentadiene · Synthetic Organic ChemicalsNoncompliance period start January 1, 2018 · period end December 31, 2020 · first reported February 12, 2021 · EPA return-to-compliance field December 31, 2020
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2602 February 4, 2021 Informal State Violation/Reminder Notice 2652 December 15, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 14530 · 2,4-D · Synthetic Organic ChemicalsNoncompliance period start January 1, 2018 · period end December 31, 2020 · first reported February 12, 2021 · EPA return-to-compliance field December 31, 2020
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2600 February 4, 2021 Informal State Violation/Reminder Notice 2652 December 15, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 14529 · Pentachlorophenol · Synthetic Organic ChemicalsNoncompliance period start January 1, 2018 · period end December 31, 2020 · first reported February 12, 2021 · EPA return-to-compliance field December 31, 2020
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2598 February 4, 2021 Informal State Violation/Reminder Notice 2652 December 15, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 14527 · 2,3,7,8-TCDD · Synthetic Organic ChemicalsNoncompliance period start January 1, 2018 · period end December 31, 2020 · first reported February 12, 2021 · EPA return-to-compliance field December 31, 2020
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2594 February 4, 2021 Informal State Violation/Reminder Notice 2652 December 15, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 14526 · Heptachlor epoxide · Synthetic Organic ChemicalsNoncompliance period start January 1, 2018 · period end December 31, 2020 · first reported February 12, 2021 · EPA return-to-compliance field December 31, 2020
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2592 February 4, 2021 Informal State Violation/Reminder Notice 2652 December 15, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 14523 · Simazine · Synthetic Organic ChemicalsNoncompliance period start January 1, 2018 · period end December 31, 2020 · first reported February 12, 2021 · EPA return-to-compliance field December 31, 2020
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2586 February 4, 2021 Informal State Violation/Reminder Notice 2652 December 15, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 14522 · Dinoseb · Synthetic Organic ChemicalsNoncompliance period start January 1, 2018 · period end December 31, 2020 · first reported February 12, 2021 · EPA return-to-compliance field December 31, 2020
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2584 February 4, 2021 Informal State Violation/Reminder Notice 2652 December 15, 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