How Clean Is Orwell Lake?
Orwell 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): 4.1 ft. Phosphorus: 54 µg/L. Chlorophyll-a (algae): 9.7 µg/L. Trophic State Index: 57.
Cleanliness Snapshot
| Metric | Orwell Lake | Minnesota avg |
|---|---|---|
| Water Clarity (Secchi) | 4.1 ft | — |
| Phosphorus | 54 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 9.7 µg/L | <10 = clean |
| Trophic State Index | 57 | <50 = clean |
How does Orwell Lake compare?
Orwell 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 declining based on 2 years of records.
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