How Clean Is Round Lake?
Round Lake is among the cleanest lakes in Michigan. Its nutrient and algae readings come from EPA monitoring data. Water clarity (Secchi depth): 12.3 ft. Phosphorus: 8 µg/L. Chlorophyll-a (algae): 2 µg/L. Trophic State Index: 38.
Cleanliness Snapshot
| Metric | Round Lake | Michigan avg |
|---|---|---|
| Water Clarity (Secchi) | 12.3 ft | — |
| Phosphorus | 8 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 2 µg/L | <10 = clean |
| Trophic State Index | 38 | <50 = clean |
How does Round Lake compare?
Round Lake's readings match or beat the Michigan state average. It ranks #2 of 5 lakes in Lenawee County on nutrient and algae readings. Multi-year monitoring data shows water quality is declining based on 7 years of records.
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