THOMPSON HEIGHTS WATER SYSTEM
PWS ID: TX0910085 · DENISON, Texas 75021-0378
Population Served
414
Total Violations
120
Health-Based Violations
18
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 138
- County
- Grayson
- School/Daycare
- No
- MCL Violations
- 18
- Monitoring Violations
- 86
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Chlorine | MR | 65 | 2018 |
| Lead and Copper Rule | MR | 18 | 2020 |
| TTHM | MCL | 14 | 2009 |
| Consumer Confidence Rule | Other | 10 | 2020 |
| Coliform (TCR) | MCL | 4 | 2013 |
| Public Notice | Other | 4 | 2020 |
| Revised Total Coliform Rule | MON | 3 | 2025 |
| Groundwater Rule | Other | 1 | 2013 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.