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LakeQuality

Chilton Millpond vs Little Lake Butte des Morts

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

Chilton Millpond and Little Lake Butte des Morts both received the same overall water quality grade of F (Very Poor). Both are in Wisconsin.

Chilton Millpond and Little Lake Butte des Morts are both in Wisconsin — 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. These two are within a letter of each other on the rubric — Chilton Millpond (F) versus Little Lake Butte des Morts (F). The deciding factors for a recreational visitor are likely physical (depth, access, fish species) rather than water-quality differences.

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

Chilton Millpond

Calumet County, Wisconsin

Very murky, less than 2.9 ft of visibility.

F

Little Lake Butte des Morts

Winnebago County, Wisconsin

Very murky, less than 2 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.

MetricChilton MillpondLittle Lake Butte des Morts
Overall GradeF (Very Poor)F (Very Poor)
Water Clarity2.9 ft2 ft
Phosphorus287.5 µg/L133.5 µg/L
Chlorophyll-a (Algae)No dataNo data
Maximum Depth--
Surface Area46 acres582 acres
Public AccessUnknownUnknown
Fish Species00
Trophic Statehypereutrophichypereutrophic

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 (Chilton Millpond: 2.9 ft, Little Lake Butte des Morts: 2 ft) and what you want from the lake. Chilton Millpond matches its peer on species count.