AZ0407695 · Arizona

EPCOR - AGUA FRIA

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

Violation records shown: 47
EPA health-based flag: 2
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 45

Counties listed by EPA · Maricopa 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 20 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.

EPA health-based flag · Resolved
Treatment Technique, Level 1 Assessment (RTCR)Violation 11061 · Revised Total Coliform Rule · Revised Total Coliform Rule
Noncompliance period start August 24, 2025 · period end June 2, 2026 · first reported May 14, 2026 · EPA return-to-compliance field June 2, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
4292 May 7, 2026 Informal State Violation/Reminder Notice
4295 June 2, 2026 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 11060 · Surface Water Treatment Rule · Surface Water Treatment Rule
Noncompliance period start July 1, 2025 · period end July 31, 2025 · first reported November 17, 2025 · EPA return-to-compliance field July 31, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
4288 September 3, 2025 Informal State Violation/Reminder Notice
4289 September 3, 2025 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 11053 · Nitrate · Nitrate Rule
Noncompliance period start April 1, 2024 · period end June 30, 2024 · first reported August 14, 2024 · EPA return-to-compliance field June 30, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
4266 July 11, 2024 Resolving State Compliance achieved
4264 August 8, 2024 Informal State Violation/Reminder Notice
Monitoring or reporting · Resolved
Monitoring, RegularViolation 11052 · Arsenic · Arsenic Rule
Noncompliance period start April 1, 2024 · period end June 30, 2024 · first reported August 14, 2024 · EPA return-to-compliance field June 30, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
4266 July 11, 2024 Resolving State Compliance achieved
4262 August 8, 2024 Informal State Violation/Reminder Notice
Monitoring or reporting · Resolved
Monitoring, RegularViolation 11051 · Arsenic · Arsenic Rule
Noncompliance period start April 1, 2024 · period end June 30, 2024 · first reported August 14, 2024 · EPA return-to-compliance field June 30, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
4266 July 11, 2024 Resolving State Compliance achieved
4260 August 8, 2024 Informal State Violation/Reminder Notice
Monitoring or reporting · Resolved
Monitoring, RegularViolation 11026 · 2,4-D · Synthetic Organic Chemicals
Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
4259 June 14, 2024 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 11010 · 2,4-D · Synthetic Organic Chemicals
Noncompliance period start July 1, 2023 · period end September 30, 2023 · first reported February 24, 2026 · EPA return-to-compliance field September 30, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
4091 November 1, 2023 Informal State Violation/Reminder Notice
4095 November 1, 2023 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 11009 · 2,4-D · Synthetic Organic Chemicals
Noncompliance period start July 1, 2023 · period end September 30, 2023 · first reported November 15, 2023 · EPA return-to-compliance field September 30, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
4095 November 1, 2023 Resolving State Compliance achieved
4100 November 1, 2023 Informal State Violation/Reminder Notice
Monitoring or reporting · Resolved
Monitoring, RegularViolation 11008 · Nitrate · Nitrate Rule
Noncompliance period start April 1, 2023 · period end June 30, 2023 · first reported February 24, 2026 · 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
4086 August 9, 2023 Informal State Violation/Reminder Notice
4090 August 9, 2023 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 11007 · Arsenic · Arsenic Rule
Noncompliance period start April 1, 2023 · period end June 30, 2023 · first reported February 24, 2026 · 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
4082 August 9, 2023 Informal State Violation/Reminder Notice
4090 August 9, 2023 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 11006 · Arsenic · Arsenic Rule
Noncompliance period start April 1, 2023 · period end June 30, 2023 · first reported February 24, 2026 · 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
4078 August 9, 2023 Informal State Violation/Reminder Notice
4090 August 9, 2023 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 11005 · Arsenic · Arsenic Rule
Noncompliance period start April 1, 2023 · period end June 30, 2023 · first reported February 24, 2026 · 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
4074 August 9, 2023 Informal State Violation/Reminder Notice
4090 August 9, 2023 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 11004 · Arsenic · Arsenic Rule
Noncompliance period start April 1, 2023 · period end June 30, 2023 · first reported February 24, 2026 · 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
4070 August 9, 2023 Informal State Violation/Reminder Notice
4090 August 9, 2023 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 11049 · 2,4-D · Synthetic Organic Chemicals
Noncompliance period start October 1, 2022 · period end December 31, 2022 · first reported March 29, 2024 · 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
4114 February 14, 2024 Informal State Violation/Reminder Notice
4254 March 26, 2024 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 11013 · 2,4-D · Synthetic Organic Chemicals
Noncompliance period start October 1, 2022 · period end December 31, 2022 · first reported March 29, 2024 · 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
4110 February 14, 2024 Informal State Violation/Reminder Notice
4254 March 26, 2024 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring, RegularViolation 11012 · Arsenic · Arsenic Rule
Noncompliance period start October 1, 2022 · period end December 31, 2022 · first reported March 29, 2024 · 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
4105 February 14, 2024 Informal State Violation/Reminder Notice
4109 February 14, 2024 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4292	May 7, 2026	Informal	State Violation/Reminder Notice
4295	June 2, 2026	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4288	September 3, 2025	Informal	State Violation/Reminder Notice
4289	September 3, 2025	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4266	July 11, 2024	Resolving	State Compliance achieved
4264	August 8, 2024	Informal	State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4266	July 11, 2024	Resolving	State Compliance achieved
4262	August 8, 2024	Informal	State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4266	July 11, 2024	Resolving	State Compliance achieved
4260	August 8, 2024	Informal	State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4259	June 14, 2024	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4091	November 1, 2023	Informal	State Violation/Reminder Notice
4095	November 1, 2023	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4095	November 1, 2023	Resolving	State Compliance achieved
4100	November 1, 2023	Informal	State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4086	August 9, 2023	Informal	State Violation/Reminder Notice
4090	August 9, 2023	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4082	August 9, 2023	Informal	State Violation/Reminder Notice
4090	August 9, 2023	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4078	August 9, 2023	Informal	State Violation/Reminder Notice
4090	August 9, 2023	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4074	August 9, 2023	Informal	State Violation/Reminder Notice
4090	August 9, 2023	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4070	August 9, 2023	Informal	State Violation/Reminder Notice
4090	August 9, 2023	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4114	February 14, 2024	Informal	State Violation/Reminder Notice
4254	March 26, 2024	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4110	February 14, 2024	Informal	State Violation/Reminder Notice
4254	March 26, 2024	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4105	February 14, 2024	Informal	State Violation/Reminder Notice
4109	February 14, 2024	Resolving	State Compliance achieved

EPA health-based flag · Resolved

WQP Entry Point/Tap Treatment Technique Non-ComplianceViolation 11003 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start January 1, 2022 · period end June 30, 2022 · first reported December 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
4067	June 27, 2022	Informal	State Public Notification received
4068	December 2, 2022	Resolving	State no longer subject to Rule

Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 10976 · Lead and Copper Rule · Lead and Copper Rule
Noncompliance period start October 1, 2021 · period end November 3, 2021 · first reported February 16, 2022 · EPA return-to-compliance field November 3, 2021

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
4018 November 3, 2021 Resolving State Compliance achieved
4016 November 4, 2021 Informal State Violation/Reminder Notice
Monitoring or reporting · Resolved
Follow-up Or Routine LCR Tap M/RViolation 10975 · Lead and Copper Rule · Lead and Copper Rule
Noncompliance period start July 1, 2021 · period end July 14, 2021 · first reported November 10, 2021 · EPA return-to-compliance field July 14, 2021

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
4015 July 14, 2021 Resolving State Compliance achieved
4013 August 26, 2021 Informal State Violation/Reminder Notice
Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 10974 · Lead and Copper Rule · Lead and Copper Rule
Noncompliance period start April 3, 2021 · period end May 28, 2021 · first reported August 12, 2021 · EPA return-to-compliance field May 28, 2021

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
4009 May 4, 2021 Informal State Violation/Reminder Notice
4008 May 28, 2021 Resolving State Compliance achieved
Monitoring or reporting · Archived
Monitoring, RegularViolation 11048 · Endrin · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 11047 · BHC-GAMMA · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 11046 · Methoxychlor · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 11045 · Toxaphene · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 11044 · Dalapon · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 11043 · Diquat · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 11042 · Endothall · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 11041 · Glyphosate · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 11040 · Di(2-ethylhexyl) adipate · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 11039 · OXAMYL · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 11038 · Simazine · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 11037 · Di(2-ethylhexyl) phthalate · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 11036 · Picloram · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 11035 · Dinoseb · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 11034 · Hexachlorocyclopentadiene · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 11033 · Carbofuran · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 11032 · Atrazine · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 11031 · LASSO · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 11030 · 2,3,7,8-TCDD · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 11029 · Heptachlor · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 11028 · Heptachlor epoxide · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 11027 · 2,4-D · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 11025 · 2,4,5-TP · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 11024 · HEXACHLOROBENZENE · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 11023 · Benzo(a)pyrene · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 11022 · Pentachlorophenol · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 11014 · Chlordane · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4018	November 3, 2021	Resolving	State Compliance achieved
4016	November 4, 2021	Informal	State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4015	July 14, 2021	Resolving	State Compliance achieved
4013	August 26, 2021	Informal	State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4009	May 4, 2021	Informal	State Violation/Reminder Notice
4008	May 28, 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