How Clean Is Mazaska Lake?
Mazaska Lake is algae-prone, with a higher bloom risk in warm months. Its nutrient and algae readings come from EPA monitoring data. Water clarity (Secchi depth): 2.5 ft. Phosphorus: 89 µg/L. Chlorophyll-a (algae): 51.3 µg/L. Trophic State Index: 67.
Cleanliness Snapshot
| Metric | Mazaska Lake | Minnesota avg |
|---|---|---|
| Water Clarity (Secchi) | 2.5 ft | — |
| Phosphorus | 89 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 51.3 µg/L | <10 = clean |
| Trophic State Index | 67 | <50 = clean |
How does Mazaska Lake compare?
Mazaska Lake's readings run above the Minnesota state average. It ranks #8 of 14 lakes in Rice 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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