POST OAK Water Quality Report
Population
27
people served
Water Source
🌊 Surface
rivers, lakes, reservoirs
National Rank
Top 90%
of 49,184 US systems
5-Year Record
⚠️ 7
violations recorded
C
Fair
Safety Grade
7 violations in the past 5 years, including 1 health-based
System Details
- PWSID
- TX1980018
- Population Served
- 27
- Water Source
- Surface Water
- Owner
- Private
- State
- Texas
- EPA Region
- 6
Contaminants of Concern
| Contaminant | Status | Violations |
|---|---|---|
| Contaminant 7000 | ⚠ Monitoring/Reporting | 12 |
| Contaminant 7500 | ⚠ Monitoring/Reporting | 7 |
| Total Coliform | ⚠ Monitoring/Reporting | 1 |
| Contaminant 5000 | ⚠ Monitoring/Reporting | 7 |
| Gross Alpha | ⚠ Monitoring/Reporting | 2 |
| Uranium | ⚠ Monitoring/Reporting | 2 |
| Radium-226 | ⚠ Monitoring/Reporting | 2 |
| Contaminant 5200 | ✕ Health-Based | 2 |
Violation History
2025
1
2024
3
2023
1
2021
2
2020
4
2019
2
2018
2
2017
2
2014
2
2012
6
Total violations on record: 35
Service Area
Cities Served
ZIP Codes Served
Recommended Water Filters
Based on contaminants detected in this water system:
Reverse Osmosis System
Removes up to 99% of contaminants including PFAS, lead, arsenic, and nitrates
Removes: Uranium, Radium-226
UV Water Purifier
Kills bacteria and viruses without chemicals
Removes: Total Coliform
How does this compare?
This systemNational average
Grade C
Avg: B-C
35violations total
125% of national average
National avg: ~28 per system
🏘️ Small community water system.