How Clean Is Crystal Lake?
Crystal Lake is among the cleanest lakes in Michigan. Its nutrient and algae readings come from EPA monitoring data. Water clarity (Secchi depth): 10 ft. Phosphorus: 9 µg/L. Chlorophyll-a (algae): 2.2 µg/L. Trophic State Index: 39.
Cleanliness Snapshot
| Metric | Crystal Lake | Michigan avg |
|---|---|---|
| Water Clarity (Secchi) | 10 ft | — |
| Phosphorus | 9 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 2.2 µg/L | <10 = clean |
| Trophic State Index | 39 | <50 = clean |
How does Crystal Lake compare?
Crystal Lake's readings match or beat the Michigan state average. It ranks #1 of 4 lakes in Montcalm County on nutrient and algae readings. Multi-year monitoring data shows water quality is declining based on 8 years of records.
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