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LakeQuality
A

Sands Lake

Becker County, MinnesotaMesotrophic

Sands Lake sits at the top of the Minnesota PCA grading rubric with an A, a mark reached by the cleanest lakes in Minnesota. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.

The lake sits in the mesotrophic zone — the band where most well-managed Minnesota lakes fall. 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. Among the 93 graded lakes in Becker County, Sands Lake sits at rank 30, above the county median.

No invasive species are currently listed at Sands Lake — the lake remains off the Minnesota infested-waters roster. The state fisheries records do not list documented species for Sands 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 2022-09-22. Grade methodology: LakeGrade methodology.

Swimming Safety

Excellent for swimming, crystal clear water with minimal algae

Water Quality Grade: A, Excellent

Good clarity, visible to about 11.5 ft. Phosphorus level: 19 µg/L. Trophic State Index: 44.

MetricValueGrade
Water Clarity (Secchi Depth)11.5 ftB
Phosphorus19 µg/LA
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)44Mesotrophic

Moderate nutrients, good water quality

Location

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County Ranking

Ranked #30 of 93 lakes in Becker County

Nearby Lakes in Becker County

DNR Reports & Resources

Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Sands 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: 2022-09-22

Monitoring stations: 1