How Clean Is Grand Sable Lake?
Grand Sable Lake is a clean lake by Michigan standards. Its nutrient and algae readings come from EPA monitoring data. Water clarity (Secchi depth): 8 ft. Phosphorus: 10.8 µg/L. Trophic State Index: 43.
Cleanliness Snapshot
| Metric | Grand Sable Lake | Michigan avg |
|---|---|---|
| Water Clarity (Secchi) | 8 ft | — |
| Phosphorus | 10.8 µg/L | <30 = clean |
| Trophic State Index | 43 | <50 = clean |
How does Grand Sable Lake compare?
Grand Sable Lake's readings match or beat the Michigan state average. It ranks #6 of 8 lakes in Alger County on nutrient and algae readings. Multi-year monitoring data shows water quality is stable based on 9 years of records.
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