DOUGLAS COUNTY SCHOOLS O AND M EAST
PWS ID: CO0218964 · CASTLE ROCK, Colorado 80109
Population Served
126
Total Violations
105
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- Local
- Connections
- 1
- County
- Douglas
- School/Daycare
- Yes
- MCL Violations
- 0
- Monitoring Violations
- 105
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Nitrate | MR | 6 | 2009 |
| Antimony, Total | MR | 3 | 2009 |
| Beryllium, Total | MR | 3 | 2009 |
| Selenium | MR | 3 | 2009 |
| Fluoride | MR | 3 | 2009 |
| Lead and Copper Rule | MR | 3 | 2010 |
| 1,2,4-Trichlorobenzene | MR | 3 | 2011 |
| cis-1,2-Dichloroethylene | MR | 3 | 2011 |
| DICHLOROMETHANE | MR | 3 | 2011 |
| o-Dichlorobenzene | MR | 3 | 2011 |
| p-Dichlorobenzene | MR | 3 | 2011 |
| Vinyl chloride | MR | 3 | 2011 |
| 1,1-Dichloroethylene | MR | 3 | 2011 |
| trans-1,2-Dichloroethylene | MR | 3 | 2011 |
| Cadmium | MR | 3 | 2009 |
| 1,1,1-Trichloroethane | MR | 3 | 2011 |
| Carbon tetrachloride | MR | 3 | 2011 |
| 1,2-Dichloropropane | MR | 3 | 2011 |
| 1,1,2-Trichloroethane | MR | 3 | 2011 |
| Tetrachloroethylene | MR | 3 | 2011 |
| CHLOROBENZENE | MR | 3 | 2011 |
| Nickel | MR | 3 | 2009 |
| Thallium, Total | MR | 3 | 2009 |
| Arsenic | MR | 3 | 2009 |
| Ethylbenzene | MR | 3 | 2011 |
| Trichloroethylene | MR | 3 | 2011 |
| Toluene | MR | 3 | 2011 |
| Barium | MR | 3 | 2009 |
| Benzene | MR | 3 | 2011 |
| Mercury | MR | 3 | 2009 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.