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LakeQuality

Clearwater Lake vs One Lake

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

Clearwater Lake has a higher water quality grade (A, Excellent) than One Lake (C, Fair). Both are in Lake County, Minnesota.

Both Clearwater Lake and One 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: Clearwater Lake grades a A while One Lake grades a C. 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 — Clearwater 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?

A

Clearwater Lake

Lake County, Minnesota

Crystal clear, you can see 18 ft down.

C

One Lake

Lake County, Minnesota

Moderate clarity, visible to about 7.5 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.

MetricClearwater LakeOne Lake
Overall GradeA (Excellent)C (Fair)
Water Clarity18 ft7.5 ft
PhosphorusNo dataNo data
Chlorophyll-a (Algae)No dataNo data
Maximum Depth46 ft57 ft
Surface Area640.18 acres845.95 acres
Public AccessNoYes
Fish Species01
Trophic Stateoligotrophicmesotrophic

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

Verdict

Clearwater Lake wins on overall water quality with a Grade A versus One Lake's Grade C. Water clarity: 18 ft vs 7.5 ft. For more fish-species variety, One Lake edges ahead with 1 documented species.