How Clean Is Little Turtle Lake?
Little Turtle Lake has fair water quality — typical of lakes with moderate nutrient enrichment. It received a water quality grade of C (Fair) based on EPA monitoring data. Water clarity (Secchi depth): 6.5 ft. Phosphorus: 23.5 µg/L. Chlorophyll-a (algae): 12 µg/L. Trophic State Index: 52.
Cleanliness Snapshot
| Metric | Little Turtle Lake | Minnesota avg |
|---|---|---|
| Overall Grade | C | C |
| Water Clarity (Secchi) | 6.5 ft | — |
| Phosphorus | 23.5 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 12 µg/L | <10 = clean |
| Trophic State Index | 52 | <50 = clean |
How does Little Turtle Lake compare?
Little Turtle Lake's grade of C matches or beats the Minnesota state average of C. It ranks #68 of 85 lakes in Beltrami County by water quality score. Multi-year monitoring data shows water quality is declining based on 6 years of records.
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