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AZ0410164 · Arizona

ORO VALLEY WATER UTILITY

Federal fiscal 2026Q3 · EPA violation and follow-up records

Violation records shown: 29
EPA health-based flag: 0
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 29

Counties listed by EPA · Pima County, Arizona

Open the EPA system record

Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.

Violations and what followed

Among 29 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 177 days. The interval uses the reporting periods and dates on file.

Monitoring or reporting · Resolved

Monitoring, RegularViolation 146419 · Chlordane · Synthetic Organic Chemicals

Noncompliance period start January 1, 2019 · period end June 27, 2019 · first reported February 16, 2022 · EPA return-to-compliance field June 27, 2019

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
11705	June 27, 2019	Resolving	State no longer subject to Rule
11703	February 14, 2022	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, RegularViolation 146418 · ETHYLENE DIBROMIDE · Synthetic Organic Chemicals

Noncompliance period start January 1, 2019 · period end June 27, 2019 · first reported February 16, 2022 · EPA return-to-compliance field June 27, 2019

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
11705	June 27, 2019	Resolving	State no longer subject to Rule
11703	February 14, 2022	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, RegularViolation 146417 · 1,2-DIBROMO-3-CHLOROPROPANE · Synthetic Organic Chemicals

Noncompliance period start January 1, 2019 · period end June 27, 2019 · first reported February 16, 2022 · EPA return-to-compliance field June 27, 2019

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
11705	June 27, 2019	Resolving	State no longer subject to Rule
11703	February 14, 2022	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, RegularViolation 146409 · Pentachlorophenol · Synthetic Organic Chemicals

Noncompliance period start January 1, 2019 · period end June 27, 2019 · first reported February 16, 2022 · EPA return-to-compliance field June 27, 2019

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
11705	June 27, 2019	Resolving	State no longer subject to Rule
11703	February 14, 2022	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, RegularViolation 146408 · Benzo(a)pyrene · Synthetic Organic Chemicals

Noncompliance period start January 1, 2019 · period end June 27, 2019 · first reported February 16, 2022 · EPA return-to-compliance field June 27, 2019

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
11705	June 27, 2019	Resolving	State no longer subject to Rule
11703	February 14, 2022	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, RegularViolation 146407 · HEXACHLOROBENZENE · Synthetic Organic Chemicals

Noncompliance period start January 1, 2019 · period end June 27, 2019 · first reported February 16, 2022 · EPA return-to-compliance field June 27, 2019

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
11705	June 27, 2019	Resolving	State no longer subject to Rule
11703	February 14, 2022	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, RegularViolation 146406 · 2,4,5-TP · Synthetic Organic Chemicals

Noncompliance period start January 1, 2019 · period end June 27, 2019 · first reported February 16, 2022 · EPA return-to-compliance field June 27, 2019

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
11705	June 27, 2019	Resolving	State no longer subject to Rule
11703	February 14, 2022	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, RegularViolation 146405 · 2,4-D · Synthetic Organic Chemicals

Noncompliance period start January 1, 2019 · period end June 27, 2019 · first reported February 16, 2022 · EPA return-to-compliance field June 27, 2019

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
11705	June 27, 2019	Resolving	State no longer subject to Rule
11703	February 14, 2022	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, RegularViolation 146404 · Heptachlor epoxide · Synthetic Organic Chemicals

Noncompliance period start January 1, 2019 · period end June 27, 2019 · first reported February 16, 2022 · EPA return-to-compliance field June 27, 2019

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
11705	June 27, 2019	Resolving	State no longer subject to Rule
11703	February 14, 2022	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, RegularViolation 146403 · Heptachlor · Synthetic Organic Chemicals

Noncompliance period start January 1, 2019 · period end June 27, 2019 · first reported February 16, 2022 · EPA return-to-compliance field June 27, 2019

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
11705	June 27, 2019	Resolving	State no longer subject to Rule
11703	February 14, 2022	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, RegularViolation 146402 · 2,3,7,8-TCDD · Synthetic Organic Chemicals

Noncompliance period start January 1, 2019 · period end June 27, 2019 · first reported February 16, 2022 · EPA return-to-compliance field June 27, 2019

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
11705	June 27, 2019	Resolving	State no longer subject to Rule
11703	February 14, 2022	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, RegularViolation 146401 · LASSO · Synthetic Organic Chemicals

Noncompliance period start January 1, 2019 · period end June 27, 2019 · first reported February 16, 2022 · EPA return-to-compliance field June 27, 2019

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
11705	June 27, 2019	Resolving	State no longer subject to Rule
11703	February 14, 2022	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, RegularViolation 146400 · Atrazine · Synthetic Organic Chemicals

Noncompliance period start January 1, 2019 · period end June 27, 2019 · first reported February 16, 2022 · EPA return-to-compliance field June 27, 2019

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
11705	June 27, 2019	Resolving	State no longer subject to Rule
11703	February 14, 2022	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, RegularViolation 146399 · Carbofuran · Synthetic Organic Chemicals

Noncompliance period start January 1, 2019 · period end June 27, 2019 · first reported February 16, 2022 · EPA return-to-compliance field June 27, 2019

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
11705	June 27, 2019	Resolving	State no longer subject to Rule
11703	February 14, 2022	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, RegularViolation 146398 · Hexachlorocyclopentadiene · Synthetic Organic Chemicals

Noncompliance period start January 1, 2019 · period end June 27, 2019 · first reported February 16, 2022 · EPA return-to-compliance field June 27, 2019

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
11705	June 27, 2019	Resolving	State no longer subject to Rule
11703	February 14, 2022	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, RegularViolation 146397 · Dinoseb · Synthetic Organic Chemicals

Noncompliance period start January 1, 2019 · period end June 27, 2019 · first reported February 16, 2022 · EPA return-to-compliance field June 27, 2019

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
11705	June 27, 2019	Resolving	State no longer subject to Rule
11703	February 14, 2022	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, RegularViolation 146396 · Picloram · Synthetic Organic Chemicals

Noncompliance period start January 1, 2019 · period end June 27, 2019 · first reported February 16, 2022 · EPA return-to-compliance field June 27, 2019

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
11705	June 27, 2019	Resolving	State no longer subject to Rule
11703	February 14, 2022	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, RegularViolation 146395 · Di(2-ethylhexyl) phthalate · Synthetic Organic Chemicals

Noncompliance period start January 1, 2019 · period end June 27, 2019 · first reported February 16, 2022 · EPA return-to-compliance field June 27, 2019

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
11705	June 27, 2019	Resolving	State no longer subject to Rule
11703	February 14, 2022	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, RegularViolation 146394 · Simazine · Synthetic Organic Chemicals

Noncompliance period start January 1, 2019 · period end June 27, 2019 · first reported February 16, 2022 · EPA return-to-compliance field June 27, 2019

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
11705	June 27, 2019	Resolving	State no longer subject to Rule
11703	February 14, 2022	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, RegularViolation 146393 · OXAMYL · Synthetic Organic Chemicals

Noncompliance period start January 1, 2019 · period end June 27, 2019 · first reported February 16, 2022 · EPA return-to-compliance field June 27, 2019

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
11705	June 27, 2019	Resolving	State no longer subject to Rule
11703	February 14, 2022	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, RegularViolation 146392 · Di(2-ethylhexyl) adipate · Synthetic Organic Chemicals

Noncompliance period start January 1, 2019 · period end June 27, 2019 · first reported February 16, 2022 · EPA return-to-compliance field June 27, 2019

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
11705	June 27, 2019	Resolving	State no longer subject to Rule
11703	February 14, 2022	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, RegularViolation 146391 · Glyphosate · Synthetic Organic Chemicals

Noncompliance period start January 1, 2019 · period end June 27, 2019 · first reported February 16, 2022 · EPA return-to-compliance field June 27, 2019

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
11705	June 27, 2019	Resolving	State no longer subject to Rule
11703	February 14, 2022	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, RegularViolation 146390 · Endothall · Synthetic Organic Chemicals

Noncompliance period start January 1, 2019 · period end June 27, 2019 · first reported February 16, 2022 · EPA return-to-compliance field June 27, 2019

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
11705	June 27, 2019	Resolving	State no longer subject to Rule
11703	February 14, 2022	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, RegularViolation 146389 · Diquat · Synthetic Organic Chemicals

Noncompliance period start January 1, 2019 · period end June 27, 2019 · first reported February 16, 2022 · EPA return-to-compliance field June 27, 2019

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
11705	June 27, 2019	Resolving	State no longer subject to Rule
11703	February 14, 2022	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, RegularViolation 146388 · Dalapon · Synthetic Organic Chemicals

Noncompliance period start January 1, 2019 · period end June 27, 2019 · first reported February 16, 2022 · EPA return-to-compliance field June 27, 2019

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
11705	June 27, 2019	Resolving	State no longer subject to Rule
11703	February 14, 2022	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, RegularViolation 146387 · Toxaphene · Synthetic Organic Chemicals

Noncompliance period start January 1, 2019 · period end June 27, 2019 · first reported February 16, 2022 · EPA return-to-compliance field June 27, 2019

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
11705	June 27, 2019	Resolving	State no longer subject to Rule
11703	February 14, 2022	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, RegularViolation 146386 · Methoxychlor · Synthetic Organic Chemicals

Noncompliance period start January 1, 2019 · period end June 27, 2019 · first reported February 16, 2022 · EPA return-to-compliance field June 27, 2019

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
11705	June 27, 2019	Resolving	State no longer subject to Rule
11703	February 14, 2022	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, RegularViolation 146385 · BHC-GAMMA · Synthetic Organic Chemicals

Noncompliance period start January 1, 2019 · period end June 27, 2019 · first reported February 16, 2022 · EPA return-to-compliance field June 27, 2019

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
11705	June 27, 2019	Resolving	State no longer subject to Rule
11703	February 14, 2022	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, RegularViolation 146384 · Endrin · Synthetic Organic Chemicals

Noncompliance period start January 1, 2019 · period end June 27, 2019 · first reported February 16, 2022 · EPA return-to-compliance field June 27, 2019

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
11705	June 27, 2019	Resolving	State no longer subject to Rule
11703	February 14, 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