How Clean Is Long Lake?
Long Lake is nutrient-rich, with elevated phosphorus and algae. Its nutrient and algae readings come from EPA monitoring data. Water clarity (Secchi depth): 2.8 ft. Phosphorus: 47.5 µg/L. Chlorophyll-a (algae): 25.3 µg/L. Trophic State Index: 62.
Cleanliness Snapshot
| Metric | Long Lake | Minnesota avg |
|---|---|---|
| Water Clarity (Secchi) | 2.8 ft | — |
| Phosphorus | 47.5 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 25.3 µg/L | <10 = clean |
| Trophic State Index | 62 | <50 = clean |
How does Long Lake compare?
Long Lake's readings run above the Minnesota state average. It ranks #47 of 75 lakes in Washington County on nutrient and algae readings.
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