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LakeQuality

Bylin Dam Lake vs Renwick Dam Lake

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

Bylin Dam Lake and Renwick Dam Lake both received the same overall water quality grade of C (Fair). Both are in Wisconsin.

Bylin Dam Lake and Renwick Dam 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: Bylin Dam Lake (C) and Renwick Dam Lake (C) 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.

C

Bylin Dam Lake

Walsh County, Wisconsin

Moderate clarity, visible to about 7.2 ft.

C

Renwick Dam Lake

Pembina County, Wisconsin

Very murky, less than 3 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.

MetricBylin Dam LakeRenwick Dam Lake
Overall GradeC (Fair)C (Fair)
Water Clarity7.2 ft3 ft
PhosphorusNo dataNo data
Chlorophyll-a (Algae)No data3.5 µg/L
Maximum Depth--
Surface Area59.9 acres223 acres
Public AccessUnknownUnknown
Fish Species00
Trophic Statemesotrophiceutrophic

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

Verdict

Both lakes earn the same Grade C. The tiebreakers come down to clarity (Bylin Dam Lake: 7.2 ft, Renwick Dam Lake: 3 ft) and what you want from the lake. Bylin Dam Lake matches its peer on species count.