3M Cottage Grove
PWS ID: MN5820415 · Cottage Grove, Minnesota 55016
Population Served
740
Total Violations
33
Health-Based Violations
21
Water Source
Groundwater
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Private
- Connections
- 55
- County
- Washington
- School/Daycare
- No
- MCL Violations
- 21
- Monitoring Violations
- 12
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 21 | 2009 |
| Coliform (TCR) | MR | 5 | 2006 |
| Chlorine | MR | 4 | 2016 |
| Revised Total Coliform Rule | MON | 3 | 2016 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.