GreyStone MHP
PWS ID: MN1020005 · Watertown, Minnesota 55388
Population Served
500
Total Violations
65
Health-Based Violations
9
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 163
- County
- Anoka
- School/Daycare
- No
- MCL Violations
- 9
- Monitoring Violations
- 56
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Chlorine | MR | 22 | 2017 |
| Coliform (TCR) | MR | 19 | 2014 |
| Lead and Copper Rule | MR | 11 | 2012 |
| Coliform (TCR) | MCL | 9 | 1992 |
| Revised Total Coliform Rule | MON | 4 | 2017 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.