Skip to main content
LakeQuality

Mazaska Lake vs Wells Lake

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

Mazaska Lake and Wells Lake both received the same overall water quality grade of F (Very Poor). Both are in Rice County, Minnesota.

Mazaska Lake and Wells Lake are both in Minnesota — a same-state head-to-head where the comparison comes down to lake-specific differences in depth, watershed, and monitoring history rather than the broader state-level water-quality regime. The grades are close: Mazaska Lake (F) and Wells Lake (F) are within one letter of each other on the LakeGrade rubric. The per-parameter sub-grades below will show where the small differences actually live.

With grades this close, the choice between the two lakes turns on non-water-quality factors: depth, fish species, public access, distance from home. The per-lake pages below cover all of those.

F

Mazaska Lake

Rice County, Minnesota

Very murky, less than 2.5 ft of visibility.

F

Wells Lake

Rice County, Minnesota

Very murky, less than 1.5 ft of visibility.

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.

MetricMazaska LakeWells Lake
Overall GradeF (Very Poor)F (Very Poor)
Water Clarity2.5 ft1.5 ft
Phosphorus99 µg/LNo data
Chlorophyll-a (Algae)No dataNo data
Maximum Depth50 ft4 ft
Surface Area687.68 acres677.46 acres
Public AccessYesNo
Fish Species11
Trophic Stateeutrophichypereutrophic

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

Verdict

Both lakes earn the same Grade F. The tiebreakers come down to clarity (Mazaska Lake: 2.5 ft, Wells Lake: 1.5 ft) and what you want from the lake. Mazaska Lake matches its peer on species count.