Skip to main content
LakeQuality

Pomme de Terre Lake vs Ten Mile Lake

Water quality, depth, fish species, and recreation comparison.

Ten Mile Lake has a higher water quality grade (B, Good) than Pomme de Terre Lake (D, Poor). Both are in Minnesota.

Both Pomme de Terre Lake and Ten Mile Lake sit in Minnesota. A same-state comparison strips out the state-level water-quality regime as a variable: any grade differences here are about the lakes themselves, not the agencies grading them. The grades are meaningfully apart: Ten Mile Lake grades a B while Pomme de Terre Lake grades a D. That two-letter spread reflects real underlying differences — different watershed inputs, different depth profiles, or different monitoring rigor.

For a recreational visitor, the wider grade gap is decisive — Ten Mile Lake is the better water-quality choice. For a researcher, the gap is the interesting part: what is different about the two watersheds, and which of those differences is mutable?

D

Pomme de Terre Lake

Grant County, Minnesota

Murky, only visible to about 4 ft.

B

Ten Mile Lake

Otter Tail County, Minnesota

Good clarity, visible to about 13.6 ft.

Side-by-Side Metrics

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

MetricPomme de Terre LakeTen Mile Lake
Overall GradeD (Poor)B (Good)
Water Clarity4 ft13.6 ft
PhosphorusNo data24 µg/L
Chlorophyll-a (Algae)No dataNo data
Maximum Depth--
Surface Area1.9K acres2.2K acres
Public AccessUnknownUnknown
Fish Species11
Trophic Stateeutrophicmesotrophic

Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).

Verdict

Ten Mile Lake wins on overall water quality with a Grade B versus Pomme de Terre Lake's Grade D. Water clarity: 13.6 ft vs 4 ft. For fishing diversity, Ten Mile Lake also leads with 1 species.