Is Thomson Reservoir Safe for Swimming?
Thomson Reservoir in Carlton County, Minnesota has limited nutrient and algae sampling on record. A water-quality reading is not a swimming clearance. The state water agency and county health departments post current advisories; check them before you swim.. Water clarity: 4 ft visibility. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Water Clarity (Secchi Depth) | 4 ft |
| Maximum Depth | 22 ft |
| Location | Carlton County, Minnesota |
How does Thomson Reservoir compare?
Thomson Reservoir does not have enough recent summer sampling to compare with the Minnesota state average.
Water clarity (Secchi depth) sits at 4 feet. That falls into moderate clarity — typical for lakes with some nutrient enrichment.
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