How Clean Is Birch Lake?
Birch Lake does not have enough monitoring data to describe. It does not have enough recent summer sampling for a nutrient or algae figure. That means the measurements are missing, not that the water is poor. Everything the monitoring record does contain is below. Water clarity (Secchi depth): 15 ft. Trophic State Index: 38.
Cleanliness Snapshot
| Metric | Birch Lake | Minnesota avg |
|---|---|---|
| Water Clarity (Secchi) | 15 ft | — |
| Trophic State Index | 38 | <50 = clean |
How does Birch Lake compare?
Birch Lake has too little recent summer sampling to compare, so it is not compared with the Minnesota state average. Multi-year monitoring data shows water quality is stable based on 6 years of records.
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