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LakeQuality
F

Unnamed Lake

Becker County, MinnesotaLimited DataHypereutrophic

On the LakeGrade rubric Unnamed Lake fails the cutoffs — a TSI of 75 and persistent algal pressure put it in the bottom tier. Sub-grades cluster within a single letter of each other, which usually means the lake is in stable trophic balance rather than fighting one specific stressor.

The hypereutrophic status — TSI 75 — reflects sustained heavy nutrient loading from the surrounding watershed and frequent algal pressure. 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. Unnamed Lake ranks 91 of 93 in Becker County — at the lower end of the locally monitored distribution.

Unnamed Lake has no invasive species recorded in Minnesota state databases as of 2022, though prevention practices still apply at all access points. 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. 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 2022-09-14. 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 1.2 ft of visibility. Trophic State Index: 75.

MetricValueGrade
Water Clarity (Secchi Depth)1.2 ftF
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)75Hypereutrophic

Very high nutrients, dense algae, poor clarity

Location

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County Ranking

Ranked #91 of 93 lakes in Becker County

Nearby Lakes in Becker County

State Parks Near Unnamed Lake

Hypereutrophic Lakes in Minnesota

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Most recent sample: 2022-09-14

Monitoring stations: 2