DENISON, TX · Grayson County

THOMPSON HEIGHTS WATER SYSTEM Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 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)

Violation history

Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2010 – September 30, 2010
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
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

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2010 – September 30, 2010	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2009 – September 30, 2009	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2009 – June 30, 2009	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2007 – December 22, 2010	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2007 – March 31, 2007	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2006 – December 31, 2006	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2006 – September 30, 2006	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
April 1, 2006 – June 30, 2006	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2006 – December 22, 2010	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2005 – December 31, 2005	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2005 – September 30, 2005	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
April 1, 2005 – June 30, 2005	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2004 – December 31, 2004	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2004 – September 30, 2004	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
April 1, 2004 – June 30, 2004	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2004 – March 31, 2004	Monitoring and Reporting (DBP)	Chlorine	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

April 10, 2025State Compliance achieved4 linked violations
October 29, 2020State Compliance achieved4 linked violations
August 21, 2020State Public Notification requested25 linked violations
March 13, 2020State Public Notification requested21 linked violations
October 24, 2017State Violation/Reminder Notice5 linked violations
January 6, 2014State Public Notification received4 linked violations
July 28, 2011State Public Notification received5 linked violations
June 16, 2011State Public Notification requested6 linked violations
June 16, 2011State Public Notification requested4 linked violations
December 22, 2010State Compliance achieved7 linked violations
October 15, 2009State Public Notification received3 linked violations
October 1, 2009State Violation/Reminder Notice1 linked violation
July 21, 2009State Public Notification requested16 linked violations
March 27, 2009State Violation/Reminder Notice1 linked violation
March 31, 2008State Violation/Reminder Notice2 linked violations
July 19, 2007State Public Notification requested1 linked violation
July 19, 2007State Public Notification requested1 linked violation
July 19, 2007State Public Notification requested1 linked violation
July 19, 2007State Public Notification requested1 linked violation
July 19, 2007State Public Notification requested1 linked violation
July 19, 2007State Public Notification requested1 linked violation
July 19, 2007State Public Notification requested1 linked violation
July 19, 2007State Public Notification requested1 linked violation
July 19, 2007State Public Notification requested1 linked violation
July 19, 2007State Public Notification requested1 linked violation
July 19, 2007State Violation/Reminder Notice1 linked violation
July 19, 2007State Public Notification requested1 linked violation
July 19, 2007State Violation/Reminder Notice1 linked violation
July 19, 2007State Violation/Reminder Notice1 linked violation
July 19, 2007State Violation/Reminder Notice1 linked violation
July 19, 2007State Violation/Reminder Notice1 linked violation
July 19, 2007State Violation/Reminder Notice1 linked violation
July 19, 2007State Violation/Reminder Notice1 linked violation
July 19, 2007State Violation/Reminder Notice1 linked violation
July 19, 2007State Violation/Reminder Notice1 linked violation
July 19, 2007State Violation/Reminder Notice1 linked violation
July 19, 2007State Violation/Reminder Notice1 linked violation
July 19, 2007State Violation/Reminder Notice1 linked violation
July 19, 2007State Violation/Reminder Notice1 linked violation
July 19, 2007State Public Notification requested1 linked violation
July 19, 2007State Public Notification requested1 linked violation

Contact

MUNSON, JOHN

903-463-2300

DENISON, TX 75021-0378