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LakeQuality
B

Lower Red Lake : East

Beltrami County, MinnesotaMesotrophic

Lower Red Lake : East carries a solid B grade — strong on most parameters, with measurements that hold up well across the summer season. 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 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. Within Beltrami County's 86 graded lakes, Lower Red Lake : East ranks 63 — below the local median, though not at the bottom.

No invasive species are currently listed at Lower Red Lake : East — the lake remains off the Minnesota infested-waters roster. The state fisheries records do not list documented species for Lower Red Lake : East, 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 2025-10-14. Grade methodology: LakeGrade methodology.

Swimming Safety

Good for swimming, clear water with low algae levels

Water Quality Grade: B, Good

Good clarity, visible to about 13.1 ft. Phosphorus level: 32 µg/L. Trophic State Index: 47.

MetricValueGrade
Water Clarity (Secchi Depth)13.1 ftB
Phosphorus32 µg/LC
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)47Mesotrophic

Moderate nutrients, good water quality

Water Quality Trend: Improving

Based on 6 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Improving+0.114 m/yr6
Phosphorus Improving-0.76 µg/L/yr6

Location

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County Ranking

Ranked #63 of 86 lakes in Beltrami County

Nearby Lakes in Beltrami County

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Most recent sample: 2025-10-14

Monitoring stations: 1