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LakeQuality
F

Wheeler South Lake

Kandiyohi County, MinnesotaHypereutrophic

Wheeler South Lake earns an F: 121 µg/L of phosphorus and clarity at 2.0 ft signal heavy nutrient loading from the surrounding watershed. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.

Hypereutrophic conditions mean the lake is operating at the upper end of the productivity scale, with all the bloom risk that implies. The lake's maximum depth is not yet documented in state morphometric records — context for its physical structure remains limited. The lake's surface area is not consistently recorded across state datasets — physical context remains partial. Wheeler South Lake ranks 29 of 35 in Kandiyohi County — at the lower end of the locally monitored distribution.

Wheeler South Lake has no invasive species recorded in Minnesota state databases as of 2024, though prevention practices still apply at all access points. The state fisheries records do not list documented species for Wheeler South Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. No formal public access is documented at Wheeler South Lake — most use is by shoreline residents and their guests. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.

Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2024-09-23. Grade methodology: LakeGrade methodology.

Swimming Safety

Avoid swimming, very poor water quality, potential algae toxins

Water Quality Grade: F, Very Poor

Very murky, less than 2 ft of visibility. Phosphorus level: 121 µg/L. Trophic State Index: 70.

MetricValueGrade
Water Clarity (Secchi Depth)2 ftF
Phosphorus121 µg/LF
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)70Hypereutrophic

Very high nutrients, dense algae, poor clarity

Water Quality Trend: Improving

Based on 5 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Improving+0.054 m/yr5
Phosphorus Improving-13.75 µg/L/yr5

Location

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County Ranking

Ranked #29 of 35 lakes in Kandiyohi County

Nearby Lakes in Kandiyohi County

Hypereutrophic Lakes in Minnesota

DNR Reports & Resources

Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Wheeler South Lake. 1 report on file.

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Most recent sample: 2024-09-23

Monitoring stations: 1