How Clean Is Little Turtle Lake?
Little Turtle Lake has poor water quality, with elevated phosphorus and algae. It received a water quality grade of D (Poor) based on EPA monitoring data. Water clarity (Secchi depth): 6 ft. Trophic State Index: 51.
Cleanliness Snapshot
| Metric | Little Turtle Lake | Minnesota avg |
|---|---|---|
| Overall Grade | D | C |
| Water Clarity (Secchi) | 6 ft | — |
| Trophic State Index | 51 | <50 = clean |
How does Little Turtle Lake compare?
Little Turtle Lake's grade of D falls below the Minnesota state average of C. It ranks #133 of 141 lakes in Itasca County by water quality score. Multi-year monitoring data shows water quality is declining based on 4 years of records.