Public water system · TX1460107
ActiveMason Lake Water System
Community water system in Liberty County, Texas, drawing primarily on groundwater.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
72
Service connections
24
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
Violations & enforcement
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2025-05-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2025-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2024-10-17 | Required treatment not metLSL Inventory · code 2E | Lead and Copper Rule Revisionscode 5200 | Yes | Resolved |
| 2021-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2018-10-26 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2017-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2012-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2011-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2010-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2003-05-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Mason Lake Water System: frequently asked questions
Is Mason Lake Water System's water safe to drink?
Mason Lake Water System is an active community water system regulated under the Safe Drinking Water Act, overseen by the TX state drinking water program. EPA's SDWA data records violations for this system — the most recent are listed on this page, including health-based violations; consult EPA ECHO or your annual Consumer Confidence Report for its current compliance status.
Who runs Mason Lake Water System?
Mason Lake Water System (PWSID TX1460107) is a private-owned community water system, regulated by the TX state drinking water program.
How many people does Mason Lake Water System serve?
Mason Lake Water System reports serving 72 people through 24 service connections in Liberty County, Texas.
Where does Mason Lake Water System get its water?
EPA SDWIS lists this system's primary water source as groundwater.
Other water systems in Liberty County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Dayton | Liberty | 15,393 | Community | Groundwater |
| City of Cleveland | Liberty | 12,438 | Community | Groundwater |
| Santa Fe Utility | Liberty | 8,265 | Community | Groundwater |
| City of Liberty | Liberty | 8,170 | Community | Groundwater |
| Grand San Jacinto Water System | Liberty | 6,174 | Community | Groundwater |
| Hardin WSC | Liberty | 6,132 | Community | Groundwater |
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