Public water system record

Minerva WSC

Serves an area of Milam County, TX · 250 people served

Federal records show 2 health-based violations and 9 monitoring/reporting issues for Minerva WSC in the last ten years. The most serious issue in this window was a resolved Total Trihalomethanes (TTHMs) violation.

  • TX1660010
  • ROCKDALE
  • TX
  • 250 served

System profile

Source water Groundwater
ZIP 76567
EPA system ID TX1660010

Verify this system on EPA ECHO →

Health-based violations, last 10 years
2
Resolved
2
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
9

Key facts

  • Minerva WSC draws water from 2 wells.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.09 mg/L, federal limit 0.08 mg/L (1.1 times the limit), 2024.
  • Record on file since 1991, with 1 health-based violation before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 103 service lines.

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant Rule family Start date Status Acute
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.084 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
220 Apr 1, 2024 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.09 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
220 Jan 1, 2024 Resolved No

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Revised Total Coliform Rule
Monitoring violation
Dec 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Revised Total Coliform Rule
Monitoring violation
Nov 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Consumer Confidence Rule
OTHER
Jul 1, 2025 Active
Chlorine
Monitoring and reporting
Apr 1, 2025 Resolved
Chlorine
Monitoring and reporting
Jul 1, 2024 Resolved
Revised Total Coliform Rule
Monitoring violation
Feb 1, 2021 Resolved
Lead and Copper Rule
Monitoring and reporting
Dec 30, 2019 Resolved
Chlorine
Monitoring and reporting
Jan 1, 2017 Resolved
Public Notice
OTHER
Feb 8, 2016 Resolved

Full record since 1991

EPA's records for Minerva WSC go back to 1991. Before October 19, 2016 they list 1 health-based violation (1 archived by EPA without a recorded fix) and 5 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 1 1
2000s 0 1
2010 to October 18, 2016 0 3
October 19, 2016 to 2019 0 2
2020s 2 6

Most recent health-based violation before October 19, 2016: Total Coliform, began June 1991, Archived.

Show the health-based violation before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
Jun 1, 1991 Archived

What the violations mean

Total Trihalomethanes (TTHMs)

2 incidents

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Where the water comes from

Minerva WSC draws water from 2 wells. It also has an emergency connection to Southwest Milam WSC. 1 other public water system has an emergency connection to Minerva WSC.

Emergency or part-time connections to

Annual water quality report

Minerva WSC must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Minerva WSC for a copy.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Texas.