How Clean Is Fourth Crow Wing Lake?
Fourth Crow Wing Lake is among the cleanest lakes in Minnesota. Its nutrient and algae readings come from EPA monitoring data. Water clarity (Secchi depth): 8 ft. Phosphorus: 19.5 µg/L. Chlorophyll-a (algae): 2.2 µg/L. Trophic State Index: 44.
Cleanliness Snapshot
| Metric | Fourth Crow Wing Lake | Minnesota avg |
|---|---|---|
| Water Clarity (Secchi) | 8 ft | — |
| Phosphorus | 19.5 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 2.2 µg/L | <10 = clean |
| Trophic State Index | 44 | <50 = clean |
How does Fourth Crow Wing Lake compare?
Fourth Crow Wing Lake's readings match or beat the Minnesota state average. It ranks #42 of 68 lakes in Hubbard 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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