How Clean Is Lobster Lake?
Lobster Lake is among the cleanest lakes in Minnesota. Its nutrient and algae readings come from EPA monitoring data. Water clarity (Secchi depth): 13 ft. Phosphorus: 20.5 µg/L. Chlorophyll-a (algae): 3.6 µg/L. Trophic State Index: 44.
Cleanliness Snapshot
| Metric | Lobster Lake | Minnesota avg |
|---|---|---|
| Water Clarity (Secchi) | 13 ft | — |
| Phosphorus | 20.5 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 3.6 µg/L | <10 = clean |
| Trophic State Index | 44 | <50 = clean |
How does Lobster Lake compare?
Lobster Lake's readings match or beat the Minnesota state average. It ranks #1 of 37 lakes in Douglas County by water quality score. Multi-year monitoring data shows water quality is declining based on 6 years of records.
Watch Lobster Lake water quality
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