AZ0414082 · Arizona
USMC YUMA MAIN SYSTEM
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 16
- EPA health-based flag
- 3
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 11
Counties listed by EPA · Yuma 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 14 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 89 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Archived
Monitoring and Reporting (DBP)Violation 7813 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start May 1, 2026 · period end May 31, 2026 · first reported August 14, 2026 · EPA return-to-compliance field May 31, 2026
No linked action row appears in the records shown.EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 7811 · 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
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1203 May 20, 2026 Informal State Violation/Reminder Notice 1204 May 20, 2026 Informal State Public Notification requested 1208 June 4, 2026 Informal State Public Notification received Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 7793 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start October 2, 2025 · period end December 17, 2025 · first reported February 24, 2026 · EPA return-to-compliance field December 17, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1193 November 6, 2025 Informal State Violation/Reminder Notice 1195 December 17, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 7797 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2025 · period end December 31, 2025 · first reported February 13, 2026 · EPA return-to-compliance field December 31, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1199 January 29, 2026 Informal State Violation/Reminder Notice 1200 February 5, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 7796 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2025 · period end December 31, 2025 · first reported February 24, 2026 · EPA return-to-compliance field December 31, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1199 January 29, 2026 Informal State Violation/Reminder Notice 1200 February 5, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Report Sample Result/Fail Monitor (RTCR)Violation 7792 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start July 1, 2025 · period end August 12, 2025 · first reported February 24, 2026 · EPA return-to-compliance field August 12, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1188 August 12, 2025 Informal State Violation/Reminder Notice 1189 August 12, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Failure Submit IDSE/Subpart V Plan RptViolation 7791 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2025 · period end October 21, 2025 · first reported February 24, 2026 · EPA return-to-compliance field October 21, 2025
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1185 May 9, 2025 Informal State Violation/Reminder Notice 1186 May 9, 2025 Informal State Public Notification requested 1192 October 21, 2025 Resolving State Compliance achieved 1202 May 7, 2026 Informal State Public Notification received Monitoring or reporting · Resolved
Report Sample Result/Fail Monitor (RTCR)Violation 7790 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start March 1, 2025 · period end April 29, 2025 · first reported February 24, 2026 · EPA return-to-compliance field April 29, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1182 April 29, 2025 Informal State Violation/Reminder Notice 1183 April 29, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Turbidity (Enhanced SWTR)Violation 7787 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment RuleNoncompliance period start June 1, 2024 · period end June 30, 2024 · first reported February 24, 2026 · EPA return-to-compliance field June 30, 2024
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1168 July 30, 2024 Informal State Violation/Reminder Notice 1169 July 30, 2024 Informal State Public Notification requested 1171 August 15, 2024 Resolving State Compliance achieved 1191 July 1, 2025 Informal State Public Notification received EPA health-based flag · Resolved
Failure To Address DeficiencyViolation 7789 · Groundwater Rule · Ground Water RuleNoncompliance period start May 12, 2024 · period end May 30, 2024 · first reported February 24, 2026 · EPA return-to-compliance field May 30, 2024
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1178 May 30, 2024 Resolving State Compliance achieved 1175 December 16, 2024 Informal State Violation/Reminder Notice 1176 December 16, 2024 Informal State Public Notification requested 1181 January 3, 2025 Informal State Public Notification received EPA health-based flag · Resolved
Failure To Address DeficiencyViolation 7788 · Groundwater Rule · Ground Water RuleNoncompliance period start May 12, 2024 · period end July 23, 2024 · first reported February 24, 2026 · EPA return-to-compliance field July 23, 2024
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1179 July 23, 2024 Resolving State Compliance achieved 1172 December 16, 2024 Informal State Violation/Reminder Notice 1173 December 16, 2024 Informal State Public Notification requested 1180 January 3, 2025 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 7785 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance 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 1162 July 14, 2023 Informal State Violation/Reminder Notice 1164 January 4, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 7783 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2023 · period end March 31, 2023 · first reported February 24, 2026 · EPA return-to-compliance field March 31, 2023
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1154 April 19, 2023 Informal State Violation/Reminder Notice 1155 April 19, 2023 Informal State Public Notification requested 1157 June 12, 2023 Informal State Public Notification received 1165 January 4, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 7782 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2023 · period end March 31, 2023 · first reported February 24, 2026 · EPA return-to-compliance field March 31, 2023
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1154 April 19, 2023 Informal State Violation/Reminder Notice 1155 April 19, 2023 Informal State Public Notification requested 1157 June 12, 2023 Informal State Public Notification received 1165 January 4, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 7775 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2022 · period end September 30, 2022 · first reported December 29, 2022 · EPA return-to-compliance field September 30, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1144 December 6, 2022 Informal State Violation/Reminder Notice 1150 December 6, 2022 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 7773 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start June 27, 2020 · period end February 3, 2021 · first reported August 14, 2020 · EPA return-to-compliance field February 3, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1166 July 15, 2020 Informal State Violation/Reminder Notice 1142 February 3, 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