GLEN ROCK WATER AUTH
PWS ID: PA7670050 · GLEN ROCK, Pennsylvania 17327
Population Served
2,000
Total Violations
266
Health-Based Violations
5
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 970
- County
- York
- School/Daycare
- No
- MCL Violations
- 3
- Monitoring Violations
- 244
- Treatment Tech Violations
- 2
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Surface Water Treatment Rule | MR | 42 | 2025 |
| Chlorine | MR | 14 | 2025 |
| Nitrate | MR | 13 | 1996 |
| Total Haloacetic Acids (HAA5) | MR | 8 | 2013 |
| DICHLOROMETHANE | MR | 6 | 1990 |
| o-Dichlorobenzene | MR | 6 | 1990 |
| trans-1,2-Dichloroethylene | MR | 6 | 1990 |
| 1,2-Dichloropropane | MR | 6 | 1990 |
| Tetrachloroethylene | MR | 6 | 1990 |
| Ethylbenzene | MR | 6 | 1990 |
| Styrene | MR | 6 | 1990 |
| 1,1,2-Trichloroethane | MR | 6 | 1990 |
| CHLOROBENZENE | MR | 6 | 1990 |
| Toluene | MR | 6 | 1990 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 6 | 1990 |
| ETHYLENE DIBROMIDE | MR | 6 | 1990 |
| Lead and Copper Rule | MR | 6 | 1998 |
| cis-1,2-Dichloroethylene | MR | 5 | 1990 |
| Public Notice | Other | 4 | 2017 |
| Selenium | MR | 4 | 1995 |
| Fluoride | MR | 4 | 1995 |
| Mercury | MR | 4 | 1995 |
| Barium | MR | 4 | 1995 |
| p-Dichlorobenzene | MR | 4 | 1990 |
| 1,2-Dichloroethane | MR | 4 | 1990 |
| Trichloroethylene | MR | 4 | 1990 |
| Carbon tetrachloride | MR | 4 | 1990 |
| Benzene | MR | 4 | 1990 |
| Cadmium | MR | 4 | 1995 |
| Chromium | MR | 4 | 1995 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.