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LakeQuality

Ashland Lake vs Phillips Lake

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

Phillips Lake has a higher water quality grade (C, Fair) than Ashland Lake (F, Very Poor). Both are in Boone County, Wisconsin.

Both Ashland Lake and Phillips Lake sit in Missouri. 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. Phillips Lake (C) is materially cleaner than Ashland Lake (F). A gap that wide is unlikely to close in a single year of remediation work; it reflects multi-decade differences in the lakes themselves.

For a recreational visitor, the wider grade gap is decisive — Phillips Lake is the better water-quality choice. For a researcher, the gap is the interesting part: what is different about the two watersheds, and which of those differences is mutable?

F

Ashland Lake

Boone County, Wisconsin

Very murky, less than 1.9 ft of visibility.

C

Phillips Lake

Boone County, Wisconsin

Very murky, less than 2.8 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.

MetricAshland LakePhillips Lake
Overall GradeF (Very Poor)C (Fair)
Water Clarity1.9 ft2.8 ft
Phosphorus90.2 µg/L35.5 µg/L
Chlorophyll-a (Algae)39 µg/L8.8 µg/L
Maximum Depth--
Surface Area29 acres33 acres
Public AccessUnknownUnknown
Fish Species00
Trophic Stateeutrophiceutrophic

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

Verdict

Phillips Lake wins on overall water quality with a Grade C versus Ashland Lake's Grade F. Water clarity: 2.8 ft vs 1.9 ft. For fishing diversity, Phillips Lake also leads with 0 species.