TWIN BOULDERS SUBDIVISION
PWS ID: VA1121755 · CHRISTIANSBURG, Virginia 24073
Population Served
90
Total Violations
357
Health-Based Violations
12
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 29
- County
- Montgomery
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 235
- Treatment Tech Violations
- 12
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Public Notice | Other | 65 | 2022 |
| Revised Total Coliform Rule | MON | 62 | 2021 |
| Coliform (TCR) | MR | 27 | 2003 |
| Chlorine | MR | 21 | 2021 |
| Consumer Confidence Rule | Other | 14 | 2024 |
| Lead and Copper Rule | MR | 10 | 2016 |
| Total Haloacetic Acids (HAA5) | MR | 9 | 2019 |
| TTHM | MR | 9 | 2019 |
| Nitrate-Nitrite | MR | 9 | 2021 |
| Lead and Copper Rule | TT | 7 | 1999 |
| Lead and Copper Rule | Other | 7 | 1999 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | TT | 5 | 2020 |
| Nitrate | MR | 4 | 2002 |
| cis-1,2-Dichloroethylene | MR | 4 | 2002 |
| Xylenes, Total | MR | 4 | 2002 |
| o-Dichlorobenzene | MR | 4 | 2002 |
| p-Dichlorobenzene | MR | 4 | 2002 |
| 1,1-Dichloroethylene | MR | 4 | 2002 |
| trans-1,2-Dichloroethylene | MR | 4 | 2002 |
| 1,2-Dichloroethane | MR | 4 | 2002 |
| Carbon tetrachloride | MR | 4 | 2002 |
| 1,1,2-Trichloroethane | MR | 4 | 2002 |
| CHLOROBENZENE | MR | 4 | 2002 |
| Benzene | MR | 4 | 2002 |
| Toluene | MR | 4 | 2002 |
| Styrene | MR | 4 | 2002 |
| DICHLOROMETHANE | MR | 4 | 2002 |
| 1,1,1-Trichloroethane | MR | 4 | 2002 |
| Ethylbenzene | MR | 4 | 2002 |
| Vinyl chloride | MR | 4 | 2002 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.