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LakeQuality
D

Unnamed Lake

Stearns County, MinnesotaLimited DataEutrophic

On the scoring rubric Unnamed Lake grades a D: clarity at 3.4 ft and phosphorus readings still being added keep it in the lower bracket for Stearns County. 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.

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. Unnamed Lake sits at rank 37 of 55 in Stearns County, in the lower half of the local distribution.

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 grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.

Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2022-09-12. Grade methodology: LakeGrade methodology.

Swimming Safety

Swimming not recommended, poor water quality with high algae risk

Water Quality Grade: D, Poor

Murky, only visible to about 3.4 ft. Trophic State Index: 59.

MetricValueGrade
Water Clarity (Secchi Depth)3.4 ftD
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)59Eutrophic

High nutrients, frequent algae, reduced clarity

Location

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County Ranking

Ranked #37 of 55 lakes in Stearns County

Nearby Lakes in Stearns County

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Most recent sample: 2022-09-12

Monitoring stations: 2