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LakeQuality

Fordville Dam Lake vs Renwick Dam Lake

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

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

Both Fordville Dam Lake and Renwick Dam Lake sit in North Dakota. 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 close: Fordville 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

Fordville Dam Lake

Grand Forks County, Wisconsin

Murky, only visible to about 4.4 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.

MetricFordville Dam LakeRenwick Dam Lake
Overall GradeC (Fair)C (Fair)
Water Clarity4.4 ft3 ft
PhosphorusNo dataNo data
Chlorophyll-a (Algae)5.2 µg/L3.5 µg/L
Maximum Depth--
Surface Area197.1 acres223 acres
Public AccessUnknownUnknown
Fish Species00
Trophic Stateeutrophiceutrophic

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 (Fordville Dam Lake: 4.4 ft, Renwick Dam Lake: 3 ft) and what you want from the lake. Fordville Dam Lake matches its peer on species count.