How Clean Is Ida Lake?
Ida Lake is among the cleanest lakes in Minnesota. Its nutrient and algae readings come from EPA monitoring data. Water clarity (Secchi depth): 16.4 ft. Phosphorus: 14 µg/L. Chlorophyll-a (algae): 3 µg/L. Trophic State Index: 40.
Cleanliness Snapshot
| Metric | Ida Lake | Minnesota avg |
|---|---|---|
| Water Clarity (Secchi) | 16.4 ft | — |
| Phosphorus | 14 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 3 µg/L | <10 = clean |
| Trophic State Index | 40 | <50 = clean |
How does Ida Lake compare?
Ida Lake's readings match or beat the Minnesota state average. It ranks #8 of 37 lakes in Douglas County on nutrient and algae readings. Multi-year monitoring data shows water quality is stable based on 6 years of records.
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