How Clean Is Iron Lake?
Iron Lake is among the cleanest lakes in Michigan. Its nutrient and algae readings come from EPA monitoring data. Water clarity (Secchi depth): 9 ft. Phosphorus: 9 µg/L. Chlorophyll-a (algae): 2.6 µg/L. Trophic State Index: 40.
Cleanliness Snapshot
| Metric | Iron Lake | Michigan avg |
|---|---|---|
| Water Clarity (Secchi) | 9 ft | — |
| Phosphorus | 9 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 2.6 µg/L | <10 = clean |
| Trophic State Index | 40 | <50 = clean |
How does Iron Lake compare?
Iron Lake's readings match or beat the Michigan state average. It ranks #2 of 21 lakes in Iron County on nutrient and algae readings.
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