AZ0407101 · Arizona
TOLLESON CITY OF
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 7
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 6
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 5 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 30 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Archived
Monitoring and Reporting (DBP)Violation 6979 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2026 · period end June 30, 2026 · first reported August 14, 2026 · EPA return-to-compliance field June 30, 2026
No linked action row appears in the records shown.Monitoring or reporting · Archived
Monitoring and Reporting (DBP)Violation 6978 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2026 · period end June 30, 2026 · first reported August 14, 2026 · EPA return-to-compliance field June 30, 2026
No linked action row appears in the records shown.Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6977 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start March 1, 2026 · period end March 31, 2026 · first reported May 14, 2026 · EPA return-to-compliance field March 31, 2026
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 152 May 8, 2026 Resolving State Compliance achieved 155 May 8, 2026 Informal State Violation/Reminder Notice 159 May 8, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 6975 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2026 · period end January 31, 2026 · first reported May 14, 2026 · EPA return-to-compliance field January 31, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 151 May 8, 2026 Informal State Violation/Reminder Notice 152 May 8, 2026 Resolving State Compliance achieved Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 6972 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start October 2, 2025 · period end October 27, 2025 · first reported February 24, 2026 · EPA return-to-compliance field October 27, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 142 October 27, 2025 Resolving State Compliance achieved 134 November 7, 2025 Informal State Violation/Reminder Notice 135 November 7, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6970 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance 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 126 September 3, 2025 Informal State Violation/Reminder Notice 127 September 3, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 6958 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance period start July 1, 2022 · period end July 31, 2022 · first reported November 16, 2022 · EPA return-to-compliance field July 31, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 103 April 27, 2023 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