WSSC-WESTERN BRANCH
PWS ID: MD1160035 · UPPER MARLBORO, Maryland 20772
Population Served
32
Total Violations
65
Health-Based Violations
9
Water Source
Groundwater
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Private
- Connections
- 6
- County
- Prince George's
- School/Daycare
- No
- MCL Violations
- 4
- Monitoring Violations
- 55
- Treatment Tech Violations
- 5
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Lead and Copper Rule | MR | 6 | 2008 |
| Nitrite | MR | 6 | 1993 |
| Mercury | MR | 4 | 2020 |
| Nickel | MR | 4 | 2020 |
| Beryllium, Total | MR | 4 | 2020 |
| Selenium | MR | 4 | 2020 |
| Lead and Copper Rule | TT | 4 | 2006 |
| Barium | MR | 4 | 2020 |
| Cadmium | MR | 4 | 2020 |
| Nitrate | MR | 4 | 1995 |
| Chromium | MR | 4 | 2020 |
| Coliform (TCR) | MCL | 4 | 2008 |
| Antimony, Total | MR | 4 | 2020 |
| Thallium, Total | MR | 4 | 2020 |
| Coliform (TCR) | MR | 3 | 1995 |
| LEAD AND COPPER RULE REVISIONS | TT | 1 | 2024 |
| LEAD AND COPPER RULE REVISIONS | RPT | 1 | 2024 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.