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LakeQuality

Springbrook Lake vs Swan Lake Max Depth

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

Springbrook Lake has a higher water quality grade (D, Poor) than Swan Lake Max Depth (F, Very Poor). Both are in Wisconsin.

Springbrook Lake and Swan Lake Max Depth are both in Iowa — 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: Springbrook Lake (D) and Swan Lake Max Depth (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.

D

Springbrook Lake

Guthrie County, Wisconsin

Very murky, less than 3 ft of visibility.

F

Swan Lake Max Depth

Carroll County, Wisconsin

Very murky, less than 1.4 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.

MetricSpringbrook LakeSwan Lake Max Depth
Overall GradeD (Poor)F (Very Poor)
Water Clarity3 ft1.4 ft
PhosphorusNo dataNo data
Chlorophyll-a (Algae)22.9 µg/L74 µg/L
Maximum Depth--
Surface Area12 acres130 acres
Public AccessUnknownUnknown
Fish Species00
Trophic Stateeutrophichypereutrophic

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

Verdict

Springbrook Lake wins on overall water quality with a Grade D versus Swan Lake Max Depth's Grade F. Water clarity: 3 ft vs 1.4 ft. For fishing diversity, Springbrook Lake also leads with 0 species.