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LakeQuality
F

Unnamed Lake

Wright County, MinnesotaLimited DataEutrophic

Unnamed Lake earns an F: phosphorus readings still being added and clarity at 1.6 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.

A TSI in the eutrophic range signals a lake doing what nutrient-loaded waters do — supporting an active algal community at the cost of clear water. 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. Within the 64 graded lakes of Wright County, Unnamed Lake sits at rank 51, near the bottom of the county list.

No invasive species are currently listed at Unnamed Lake — the lake remains off the Minnesota infested-waters roster. The state fisheries records do not list documented species for Unnamed Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. The lake lacks a documented public access point, so visitor use is limited. 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 2022-08-30. 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 1.6 ft of visibility. Trophic State Index: 70.

MetricValueGrade
Water Clarity (Secchi Depth)1.6 ftF
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)70Eutrophic

High nutrients, frequent algae, reduced clarity

Location

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County Ranking

Ranked #51 of 64 lakes in Wright County

Nearby Lakes in Wright County

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Most recent sample: 2022-08-30

Monitoring stations: 2