TWIN OAKS WATER SYSTEM
PWS ID: NC0276140 · CARY, North Carolina 27511
Population Served
104
Total Violations
48
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 41
- County
- Randolph
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 43
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Nitrate | MR | 8 | 1993 |
| Arsenic | MR | 5 | 1985 |
| Cadmium | MR | 5 | 1985 |
| Barium | MR | 5 | 1985 |
| Mercury | MR | 4 | 1985 |
| Selenium | MR | 4 | 1985 |
| Chromium | MR | 4 | 1985 |
| Fluoride | MR | 4 | 1985 |
| Consumer Confidence Rule | Other | 3 | 2002 |
| Combined Radium (-226 and -228) | MR | 2 | 1980 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1980 |
| Gross Beta Particle Activity | MR | 1 | 1980 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.