Public Water Partners

DENISON, TX · Grayson County

THOMPSON HEIGHTS WATER SYSTEM Water System

Consumer Confidence Report status

THOMPSON HEIGHTS WATER SYSTEM must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for THOMPSON HEIGHTS WATER SYSTEM.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Texas’s official records. Always confirm current status with Texas before making decisions based on this information.

System facts

System ID (PWSID)
TX0910085
System type
Community Water System
Population served
414
Service connections
138
Ownership
privately owned
Water source
surface water (rivers, lakes, or reservoirs)

THOMPSON HEIGHTS WATER SYSTEM is one of 4,188 community water systems in Texas in the 500 or fewer people size category, serving 414 people from surface water.

As of August 1, 2026, its federal record holds 19 entries between 2004 and 2009, all of which EPA lists as closed. Nothing has been added since 2009.

Of the 19, 14 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Stage 1 Disinfectants and Disinfection Byproducts Rule and the Consumer Confidence Rule.

Violation history

  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    October 1, 2009 – December 31, 2009

    Resolved

  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    July 1, 2009 – September 30, 2009

    Resolved

  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    April 1, 2009 – June 30, 2009

    Resolved

  • Monitoring and Reporting (DBP)

    —

    Chlorine

    October 1, 2008 – December 31, 2008

    Resolved

  • Consumer Confidence Report Complete Failure to Report

    —

    Consumer Confidence Rule

    July 1, 2007 – December 22, 2010

    Resolved

  • Monitoring and Reporting (DBP)

    —

    Chlorine

    January 1, 2007 – March 31, 2007

    Resolved

  • Monitoring and Reporting (DBP)

    —

    Chlorine

    October 1, 2006 – December 31, 2006

    Resolved

  • Monitoring and Reporting (DBP)

    —

    Chlorine

    July 1, 2006 – September 30, 2006

    Resolved

  • Monitoring and Reporting (DBP)

    —

    Chlorine

    April 1, 2006 – June 30, 2006

    Resolved

  • Consumer Confidence Report Inadequate Reporting

    —

    Consumer Confidence Rule

    January 1, 2006 – December 22, 2010

    Resolved

  • Monitoring and Reporting (DBP)

    —

    Chlorine

    January 1, 2006 – March 31, 2006

    Resolved

  • Monitoring and Reporting (DBP)

    —

    Chlorine

    October 1, 2005 – December 31, 2005

    Resolved

  • Monitoring and Reporting (DBP)

    —

    Chlorine

    July 1, 2005 – September 30, 2005

    Resolved

  • Monitoring and Reporting (DBP)

    —

    Chlorine

    April 1, 2005 – June 30, 2005

    Resolved

  • Monitoring and Reporting (DBP)

    —

    Chlorine

    January 1, 2005 – March 31, 2005

    Resolved

  • Monitoring and Reporting (DBP)

    —

    Chlorine

    October 1, 2004 – December 31, 2004

    Resolved

  • Monitoring and Reporting (DBP)

    —

    Chlorine

    July 1, 2004 – September 30, 2004

    Resolved

  • Monitoring and Reporting (DBP)

    —

    Chlorine

    April 1, 2004 – June 30, 2004

    Resolved

  • Monitoring and Reporting (DBP)

    —

    Chlorine

    January 1, 2004 – March 31, 2004

    Resolved

Resolved addressed and confirmed by the state

Enforcement actions

Common questions

Is THOMPSON HEIGHTS WATER SYSTEM required to publish a Consumer Confidence Report?

Yes. THOMPSON HEIGHTS WATER SYSTEM is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is THOMPSON HEIGHTS WATER SYSTEM’s next Consumer Confidence Report due?

THOMPSON HEIGHTS WATER SYSTEM’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does THOMPSON HEIGHTS WATER SYSTEM have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for THOMPSON HEIGHTS WATER SYSTEM.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

MUNSON, JOHN

903-463-2300

DENISON, TX 75021-0378