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C

Low: Mpca Co-Located Site Muskeg Bay Lake

Lake of the Woods County, MinnesotaEutrophic

Low: Mpca Co-Located Site Muskeg Bay Lake sits at a C on the grading scale — not impaired, not pristine, with summer measurements that vary year to year. Secchi readings are the weakest of the scored parameters, suggesting suspended sediment or algal biomass dominates the optical signal.

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. Low: Mpca Co-Located Site Muskeg Bay Lake ranks 4 of 11 in Lake of the Woods County — solidly in the upper half of the local distribution.

Low: Mpca Co-Located Site Muskeg Bay Lake is on the Minnesota infested-waters list for zebra mussels — boaters should follow clean-drain-dry protocols when moving gear to or from the lake. The state fisheries records do not list documented species for Low: Mpca Co-Located Site Muskeg Bay Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. Public access is available — the lake is on the Minnesota PCA public-access list. 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 2024-10-24. Grade methodology: LakeGrade methodology.

Reviewed by LakeQuality Editorial Team · Updated

Track Low: Mpca Co-Located Site Muskeg Bay Lake

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Swimming Safety

Generally safe for swimming, moderate water quality

Water Quality Grade: C, Fair

Murky, only visible to about 5.4 ft. Phosphorus level: 28 µg/L. Trophic State Index: 52.

MetricValueGrade
Water Clarity (Secchi Depth)5.4 ftD
Phosphorus28 µg/LB
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)52Eutrophic

High nutrients, frequent algae, reduced clarity

Invasive & Introduced Species

Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.

spiny waterfleazebra mussel

Water Quality Trend: Improving

Based on 2 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Improving+2.25 m/yr2
Phosphorus Improving-2 µg/L/yr2

Ice Season

Historical ice data from Minnesota DNR (6 observations).

Typical Ice-Out
May 5
EarliestLatest
Ice-Out1976-04-26 (1976)1996-05-19 (1996)
Ice-In1986-11-11 (1986)1988-11-17 (1988)

Most recent ice-out: 1997-05-06

Location

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County Ranking

Ranked #4 of 11 lakes in Lake of the Woods County

Nearby Lakes in Lake of the Woods County

DNR Reports & Resources

Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Low: Mpca Co-Located Site Muskeg Bay Lake. 1 report on file.

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Ice data from Minnesota DNR Climate

Most recent sample: 2024-10-24

Monitoring stations: 1