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LakeQuality

Dale Maffitt Reservoir vs Hooper Pond Lake

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

Dale Maffitt Reservoir has a higher water quality grade (B, Good) than Hooper Pond Lake (D, Poor). Both are in Wisconsin.

Dale Maffitt Reservoir and Hooper Pond Lake 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. Dale Maffitt Reservoir (B) is materially cleaner than Hooper Pond Lake (D). 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 — Dale Maffitt Reservoir 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?

B

Dale Maffitt Reservoir

Dallas County, Wisconsin

Moderate clarity, visible to about 9.8 ft.

D

Hooper Pond Lake

Warren County, Wisconsin

Very murky, less than 2.5 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.

MetricDale Maffitt ReservoirHooper Pond Lake
Overall GradeB (Good)D (Poor)
Water Clarity9.8 ft2.5 ft
PhosphorusNo dataNo data
Chlorophyll-a (Algae)2.5 µg/L25.1 µg/L
Maximum Depth--
Surface Area230 acres44.8 acres
Public AccessUnknownUnknown
Fish Species00
Trophic Statemesotrophiceutrophic

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

Verdict

Dale Maffitt Reservoir wins on overall water quality with a Grade B versus Hooper Pond Lake's Grade D. Water clarity: 9.8 ft vs 2.5 ft. For fishing diversity, Dale Maffitt Reservoir also leads with 0 species.