NORTHWEST HILLS WATER SUPPLY
PWS ID: TX0860086 · AUSTIN, Texas 78723-2476
Population Served
219
Total Violations
118
Health-Based Violations
20
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 73
- County
- Gillespie
- School/Daycare
- No
- MCL Violations
- 20
- Monitoring Violations
- 82
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Combined Uranium | MR | 22 | 2014 |
| Combined Radium (-226 and -228) | MR | 22 | 2014 |
| Gross Alpha, Excl. Radon and U | MR | 22 | 2014 |
| Lead and Copper Rule | MR | 16 | 2021 |
| Combined Radium (-226 and -228) | MCL | 14 | 2013 |
| Public Notice | Other | 12 | 2016 |
| Gross Alpha, Excl. Radon and U | MCL | 6 | 1999 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.