CITY OF HOUSTON Water Quality Report
Population
2,970,543
people served
Water Source
🌊 Surface
rivers, lakes, reservoirs
National Rank
Top 90%
of 49,184 US systems
5-Year Record
⚠️ 2
violations recorded
C
Fair
Safety Grade
2 violations in the past 5 years, including 2 health-based
System Details
- PWSID
- TX1010013
- Population Served
- 2,970,543
- Water Source
- Surface Water
- Owner
- Local Government
- State
- Texas
- EPA Region
- 6
Contaminants of Concern
| Contaminant | Status | Violations |
|---|---|---|
| Contaminant 5000 | ⚠ Monitoring/Reporting | 2 |
| Contaminant 8000 | ⚠ Monitoring/Reporting | 2 |
| Contaminant 0300 | ✕ Health-Based | 2 |
Violation History
2025
2
2019
2
2015
2
Total violations on record: 6
Service Area
Cities Served
ZIP Codes Served
How does this compare?
This systemNational average
Grade C
Avg: B-C
6violations total
21% of national average
National avg: ~28 per system
🏙️ This is a large system — serving 445× more people than the national average.