Is Polly Lake Safe for Swimming?
Polly Lake in Lake County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Not rated for swimming — there is not enough monitoring data to judge this lake. Water clarity: 4.5 ft visibility. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | NR (Not rated) |
| Water Clarity (Secchi Depth) | 4.5 ft |
| Maximum Depth | 21 ft |
| Location | Lake County, Minnesota |
How does Polly Lake compare?
Polly Lake is not rated for water quality — its monitoring record does not meet the evidence bar, so it is not compared with the Minnesota state average.
Water clarity (Secchi depth) sits at 4.5 feet. That falls into moderate clarity — typical for lakes with some nutrient enrichment.