How Clean Is Big Swan Lake?
Big Swan 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): 2.6 ft. Phosphorus: 86.5 µg/L. Chlorophyll-a (algae): 61.3 µg/L. Trophic State Index: 68.
Cleanliness Snapshot
| Metric | Big Swan Lake | Minnesota avg |
|---|---|---|
| Water Clarity (Secchi) | 2.6 ft | — |
| Phosphorus | 86.5 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 61.3 µg/L | <10 = clean |
| Trophic State Index | 68 | <50 = clean |
How does Big Swan Lake compare?
Big Swan Lake's readings run above the Minnesota state average. It ranks #12 of 19 lakes in Meeker County by water quality score. Multi-year monitoring data shows water quality is improving based on 5 years of records.
Watch Big Swan Lake water quality
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