How Clean Is Sibley Lake?
Sibley Lake has fair water quality — typical of lakes with moderate nutrient enrichment. Its nutrient and algae readings come from EPA monitoring data. Water clarity (Secchi depth): 5.6 ft. Phosphorus: 26 µg/L. Chlorophyll-a (algae): 11 µg/L. Trophic State Index: 53.
Cleanliness Snapshot
| Metric | Sibley Lake | Minnesota avg |
|---|---|---|
| Water Clarity (Secchi) | 5.6 ft | — |
| Phosphorus | 26 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 11 µg/L | <10 = clean |
| Trophic State Index | 53 | <50 = clean |
How does Sibley Lake compare?
Sibley Lake's readings match or beat the Minnesota state average. It ranks #76 of 85 lakes in Crow Wing County by water quality score. Multi-year monitoring data shows water quality is improving based on 6 years of records.
Watch Sibley Lake water quality
Get an email when the clarity or algae readings change. Unsubscribe anytime.