How Clean Is Turtle Lake?
Turtle Lake is among the cleanest lakes in Minnesota. Its nutrient and algae readings come from EPA monitoring data. Water clarity (Secchi depth): 7.5 ft. Phosphorus: 22 µg/L. Chlorophyll-a (algae): 5.2 µg/L. Trophic State Index: 48.
Cleanliness Snapshot
| Metric | Turtle Lake | Minnesota avg |
|---|---|---|
| Water Clarity (Secchi) | 7.5 ft | — |
| Phosphorus | 22 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 5.2 µg/L | <10 = clean |
| Trophic State Index | 48 | <50 = clean |
How does Turtle Lake compare?
Turtle Lake's readings match or beat the Minnesota state average. It ranks #4 of 44 lakes in Ramsey County by water quality score. Multi-year monitoring data shows water quality is improving based on 6 years of records.
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