TX1460107 · Texas
MASON LAKE WATER SYSTEM
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 6
- EPA health-based flag
- 1
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 4
Counties listed by EPA · Liberty 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 6 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 90.5 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 100069214 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start December 30, 2025 · period end March 31, 2026 · first reported March 31, 2026 · EPA return-to-compliance field March 31, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 20110156 February 23, 2026 Informal State Violation/Reminder Notice 20110157 March 31, 2026 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 100069211 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start May 1, 2025 · period end July 30, 2025 · first reported August 20, 2025 · EPA return-to-compliance field July 30, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 20110145 May 28, 2025 Informal State Violation/Reminder Notice 20110148 July 30, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 100069213 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2025 · period end June 30, 2025 · first reported January 6, 2026 · EPA return-to-compliance field June 30, 2025
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 20110152 October 20, 2025 Informal State Violation/Reminder Notice 20110153 October 20, 2025 Informal State Public Notification requested 20110154 November 14, 2025 Informal State Public Notification received 20110155 December 8, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
LSL ReportingViolation 100069209 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance period start October 17, 2024 · period end July 31, 2025 · first reported May 14, 2025 · EPA return-to-compliance field July 31, 2025
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 20110143 March 31, 2025 Informal State Violation/Reminder Notice 20110144 March 31, 2025 Informal State Public Notification requested 20110151 July 31, 2025 Resolving State Compliance achieved 20110150 August 1, 2025 Informal State Public Notification received EPA health-based flag · Resolved
LSL InventoryViolation 100069208 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance period start October 17, 2024 · period end July 31, 2025 · first reported May 14, 2025 · EPA return-to-compliance field July 31, 2025
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 20110141 March 31, 2025 Informal State Violation/Reminder Notice 20110142 March 31, 2025 Informal State Public Notification requested 20110151 July 31, 2025 Resolving State Compliance achieved 20110149 August 1, 2025 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 100069206 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2021 · period end March 31, 2021 · first reported August 23, 2021 · EPA return-to-compliance field March 31, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 20110135 June 23, 2021 Informal State Violation/Reminder Notice 20110136 June 23, 2021 Informal State Public Notification requested 20110138 August 16, 2021 Informal State Public Notification received 20110137 October 14, 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