How Clean Is Scotch Lake?
Scotch Lake is nutrient-rich, with elevated phosphorus and algae. Its nutrient and algae readings come from EPA monitoring data. Water clarity (Secchi depth): 2.6 ft. Phosphorus: 569 µg/L. Chlorophyll-a (algae): 9.7 µg/L. Trophic State Index: 71.
Cleanliness Snapshot
| Metric | Scotch Lake | Minnesota avg |
|---|---|---|
| Water Clarity (Secchi) | 2.6 ft | — |
| Phosphorus | 569 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 9.7 µg/L | <10 = clean |
| Trophic State Index | 71 | <50 = clean |
How does Scotch Lake compare?
Scotch Lake's readings run above the Minnesota state average. It ranks #5 of 13 lakes in Le Sueur County on nutrient and algae readings. Multi-year monitoring data shows water quality is improving based on 2 years of records.
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