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LakeQuality

Fox Valley Lake vs Lacey Keosauqua Lake

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

Fox Valley Lake has a higher water quality grade (B, Good) than Lacey Keosauqua Lake (B, Good).

Fox Valley Lake is in Missouri; Lacey Keosauqua Lake is in Iowa. Cross-state comparisons carry an extra wrinkle — Minnesota PCA and Wisconsin DNR use slightly different sampling cadences and station coverage, though both feed the same EPA Water Quality Portal. These two are within a letter of each other on the rubric — Fox Valley Lake (B) versus Lacey Keosauqua Lake (B). 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.

B

Fox Valley Lake

Clark County, Wisconsin

Moderate clarity, visible to about 8.5 ft.

B

Lacey Keosauqua Lake

Van Buren County, Wisconsin

Moderate clarity, visible to about 7.1 ft.

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.

MetricFox Valley LakeLacey Keosauqua Lake
Overall GradeB (Good)B (Good)
Water Clarity8.5 ft7.1 ft
Phosphorus16.5 µg/LNo data
Chlorophyll-a (Algae)3.6 µg/L4.7 µg/L
Maximum Depth--
Surface Area96 acres23 acres
Public AccessUnknownUnknown
Fish Species00
Trophic Statemesotrophicmesotrophic

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

Verdict

Fox Valley Lake wins on overall water quality with a Grade B versus Lacey Keosauqua Lake's Grade B. Water clarity: 8.5 ft vs 7.1 ft. For fishing diversity, Fox Valley Lake also leads with 0 species.