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LakeQuality

Arroda Lake vs Qacmainstfbk Lake

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

Qacmainstfbk Lake has a higher water quality grade (A, Excellent) than Arroda Lake (B, Good). Both are in Wisconsin.

Arroda Lake and Qacmainstfbk Lake are both in North Dakota — 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: Arroda Lake (B) and Qacmainstfbk Lake (A) 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.

B

Arroda Lake

Oliver County, Wisconsin

Moderate clarity, visible to about 6.7 ft.

A

Qacmainstfbk Lake

Mercer County, Wisconsin

No clarity data.

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.

MetricArroda LakeQacmainstfbk Lake
Overall GradeB (Good)A (Excellent)
Water Clarity6.7 ftNo data
PhosphorusNo data10 µg/L
Chlorophyll-a (Algae)3 µg/L7 µg/L
Maximum Depth--
Surface Area43.4 acres133.0K acres
Public AccessUnknownUnknown
Fish Species00
Trophic Statemesotrophicmesotrophic

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

Verdict

Qacmainstfbk Lake wins on overall water quality with a Grade A versus Arroda Lake's Grade B. For fishing diversity, Qacmainstfbk Lake also leads with 0 species.