TX0660003 · Texas
SAN DIEGO MUD 1
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 15
- EPA health-based flag
- 5
- Health-based records unresolved in this snapshot
- 1
- Monitoring and reporting records
- 4
Counties listed by EPA · Duval County, Texas
Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.
Violations and what followed
Among 9 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 · Unaddressed by formal action
LSL InventoryViolation 118 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance period start October 17, 2024 · first reported May 14, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 58 March 31, 2025 Informal State Violation/Reminder Notice 59 March 31, 2025 Informal State Public Notification requested Other or unclassified · Unaddressed by formal action
Public Notification Violation for NPDWR ViolationViolation 122 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start April 2, 2026 · first reported June 26, 2026
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 65 May 12, 2026 Informal State Violation/Reminder Notice Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 121 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2025 · period end June 2, 2026 · first reported March 31, 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 64 December 31, 2025 Informal State Violation/Reminder Notice 66 June 2, 2026 Resolving State Compliance achieved Other or unclassified · Unaddressed by formal action
Public Notification Violation for NPDWR ViolationViolation 120 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start June 30, 2025 · first reported August 20, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 62 July 28, 2025 Informal State Violation/Reminder Notice Monitoring or reporting · Unaddressed by formal action
LSL ReportingViolation 119 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance period start October 17, 2024 · first reported May 14, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 60 March 31, 2025 Informal State Violation/Reminder Notice 61 March 31, 2025 Informal State Public Notification requested Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 116 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start April 15, 2024 · period end April 26, 2024 · first reported August 16, 2024 · EPA return-to-compliance field April 26, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 49 April 26, 2024 Resolving State Compliance achieved 48 May 6, 2024 Informal State Violation/Reminder Notice EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 117 · Arsenic · Arsenic RuleNoncompliance period start April 1, 2024 · period end June 30, 2024 · first reported August 16, 2024 · EPA return-to-compliance field June 30, 2024
6 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 50 July 3, 2024 Informal State Violation/Reminder Notice 51 July 3, 2024 Informal State Public Notification requested 54 July 8, 2024 Informal State Public Notification received 55 July 19, 2024 Informal State Formal Notice of Violation issued 57 December 19, 2024 Resolving State Compliance achieved 63 July 16, 2025 Formal State Administrative/Compliance Order without penalty issued Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 111 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start February 1, 2024 · period end February 29, 2024 · first reported May 16, 2024 · EPA return-to-compliance field February 29, 2024
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 39 April 1, 2024 Informal State Violation/Reminder Notice 40 April 1, 2024 Informal State Public Notification requested 43 April 11, 2024 Resolving State Compliance achieved 46 April 26, 2024 Informal State Public Notification received EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 114 · Arsenic · Arsenic RuleNoncompliance period start January 1, 2024 · period end March 31, 2024 · first reported May 16, 2024 · EPA return-to-compliance field March 31, 2024
6 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 44 April 24, 2024 Informal State Violation/Reminder Notice 45 April 24, 2024 Informal State Public Notification requested 53 July 8, 2024 Informal State Public Notification received 55 July 19, 2024 Informal State Formal Notice of Violation issued 56 October 11, 2024 Resolving State Compliance achieved 63 July 16, 2025 Formal State Administrative/Compliance Order without penalty issued EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 113 · Arsenic · Arsenic RuleNoncompliance period start January 1, 2024 · period end March 31, 2024 · first reported May 16, 2024 · EPA return-to-compliance field March 31, 2024
6 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 41 April 9, 2024 Informal State Violation/Reminder Notice 42 April 9, 2024 Informal State Public Notification requested 52 July 8, 2024 Informal State Public Notification received 55 July 19, 2024 Informal State Formal Notice of Violation issued 57 December 19, 2024 Resolving State Compliance achieved 63 July 16, 2025 Formal State Administrative/Compliance Order without penalty issued Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 108 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start December 9, 2023 · period end December 19, 2023 · first reported September 22, 2026 · EPA return-to-compliance field December 19, 2023
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 35 December 19, 2023 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 110 · Arsenic · Arsenic RuleNoncompliance period start October 1, 2023 · period end December 31, 2023 · first reported March 28, 2024 · EPA return-to-compliance field December 31, 2023
6 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 37 March 15, 2024 Informal State Violation/Reminder Notice 38 March 15, 2024 Informal State Public Notification requested 47 April 26, 2024 Informal State Public Notification received 55 July 19, 2024 Informal State Formal Notice of Violation issued 57 December 19, 2024 Resolving State Compliance achieved 63 July 16, 2025 Formal State Administrative/Compliance Order without penalty issued Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 107 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start September 3, 2023 · period end December 12, 2023 · first reported September 22, 2026 · EPA return-to-compliance field December 12, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 31 September 26, 2023 Informal State Violation/Reminder Notice 32 December 12, 2023 Resolving State Compliance achieved Monitoring or reporting · Archived
Monitoring and Reporting (DBP)Violation 105 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2022 · period end September 30, 2022 · first reported September 22, 2026 · EPA return-to-compliance field September 30, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 34 December 12, 2023 Informal State Public Notification received Monitoring or reporting · Archived
Monitoring and Reporting (DBP)Violation 104 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2022 · period end June 30, 2022 · first reported September 22, 2026 · EPA return-to-compliance field June 30, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 33 December 12, 2023 Informal State Public Notification received
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