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C

Lower Red Lake : East

Beltrami County, MinnesotaEutrophic

Lower Red Lake : East earns a C — middle-of-the-pack water quality, with one or two parameters dragging the average down from a stronger grade. With clarity and phosphorus scored, the sub-grades cluster within a letter of each other, pointing to stable conditions rather than 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. Lower Red Lake : East ranks 80 of 92 in Beltrami County — at the lower end of the locally monitored distribution.

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.

Reviewed by LakeQuality Editorial Team · Updated

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Swimming Safety

Generally safe for swimming, moderate water quality

Water Quality Grade: C, Fair

Murky, only visible to about 4 ft. Phosphorus level: 32 µg/L. Trophic State Index: 56.

MetricValueGrade
Water Clarity (Secchi Depth)4 ftD
Phosphorus32 µg/LC
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)56Eutrophic

High nutrients, frequent algae, reduced clarity

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
See year-by-year chart →

Location

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County Ranking

Ranked #80 of 92 lakes in Beltrami County

Cleaner Lakes Within 30 Miles

Lower Red Lake : East holds Grade C. 5 nearby lakes hold higher grades.

See full comparison →

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