How Clean Is Birch Island Lake?
Birch Island Lake is a clean lake by Wisconsin standards. Its nutrient and algae readings come from EPA monitoring data. Water clarity (Secchi depth): 8 ft. Phosphorus: 13.7 µg/L. Trophic State Index: 45.
Cleanliness Snapshot
| Metric | Birch Island Lake | Wisconsin avg |
|---|---|---|
| Water Clarity (Secchi) | 8 ft | — |
| Phosphorus | 13.7 µg/L | <30 = clean |
| Trophic State Index | 45 | <50 = clean |
How does Birch Island Lake compare?
Birch Island Lake's readings match or beat the Wisconsin state average. It ranks #15 of 30 lakes in Burnett County by water quality score. Multi-year monitoring data shows water quality is declining based on 6 years of records.
Watch Birch Island Lake water quality
Get an email when the clarity or algae readings change. Unsubscribe anytime.