Is Shagawa Lake Safe for Swimming?
Shagawa Lake in St. Louis 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: 8.9 ft visibility. Phosphorus: 13 µg/L. Chlorophyll-a (algae): 5.4 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | NR (Not rated) |
| Water Clarity (Secchi Depth) | 8.9 ft |
| Phosphorus | 13 μg/L |
| Chlorophyll-a (Algae) | 5.4 μg/L |
| Maximum Depth | 48 ft |
| Location | St. Louis County, Minnesota |
How does Shagawa Lake compare?
Shagawa 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 8.9 feet. That puts the lake in good clarity range, with limited algae interference. Algae levels (chlorophyll-a) measure 5.4 µg/L — low and well within safe swimming guidelines.