TRI-GAS AND OIL CO., INC.
PWS ID: MD1050011 · FEDERALSBURG, Maryland 21632
Population Served
90
Total Violations
97
Health-Based Violations
17
Water Source
Groundwater
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Private
- Connections
- 1
- County
- Caroline
- School/Daycare
- No
- MCL Violations
- 17
- Monitoring Violations
- 79
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 38 | 2012 |
| Coliform (TCR) | MCL | 17 | 2011 |
| Lead and Copper Rule | MR | 12 | 2022 |
| Nitrate | MR | 8 | 2010 |
| Revised Total Coliform Rule | MON | 3 | 2021 |
| Thallium, Total | MR | 2 | 2002 |
| Mercury | MR | 2 | 2002 |
| Beryllium, Total | MR | 2 | 2002 |
| Selenium | MR | 2 | 2002 |
| Chromium | MR | 2 | 2002 |
| Barium | MR | 2 | 2002 |
| Cadmium | MR | 2 | 2002 |
| Nickel | MR | 2 | 2002 |
| Antimony, Total | MR | 2 | 2002 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.