How Clean Is Detroit Lake?
Detroit Lake is among the cleanest lakes in Minnesota. Its nutrient and algae readings come from EPA monitoring data. Water clarity (Secchi depth): 14 ft. Phosphorus: 17 µg/L. Chlorophyll-a (algae): 3.3 µg/L. Trophic State Index: 42.
Cleanliness Snapshot
| Metric | Detroit Lake | Minnesota avg |
|---|---|---|
| Water Clarity (Secchi) | 14 ft | — |
| Phosphorus | 17 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 3.3 µg/L | <10 = clean |
| Trophic State Index | 42 | <50 = clean |
How does Detroit Lake compare?
Detroit Lake's readings match or beat the Minnesota state average. It ranks #6 of 84 lakes in Becker County on nutrient and algae readings. Multi-year monitoring data shows water quality is declining based on 6 years of records.
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