The Madison
PWS ID: MN5820607 · Cottage Grove, Minnesota 55016
Population Served
250
Total Violations
11
Health-Based Violations
11
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- Private
- Connections
- 1
- County
- Washington
- School/Daycare
- No
- MCL Violations
- 11
- Monitoring Violations
- 0
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 6 | 2015 |
| Nitrate | MCL | 5 | 2021 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.