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LakeQuality
F

Domeier Lake

Brown County, MinnesotaHypereutrophic

Domeier Lake grades an F: water clarity, phosphorus, and chlorophyll-a all rate poorly, placing it among the most stressed lakes monitored in Minnesota. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.

Hypereutrophic conditions mean the lake is operating at the upper end of the productivity scale, with all the bloom risk that implies. 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. Domeier Lake ranks 6 of 7 in Brown County — at the lower end of the locally monitored distribution.

No invasive species are currently listed at Domeier Lake — the lake remains off the Minnesota infested-waters roster. The state fisheries records do not list documented species for Domeier 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. 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 2023-07-31. Grade methodology: LakeGrade methodology.

Swimming Safety

Avoid swimming, very poor water quality, potential algae toxins

Water Quality Grade: F, Very Poor

Very murky, less than 1 ft of visibility. Phosphorus level: 246 µg/L. Trophic State Index: 80.

MetricValueGrade
Water Clarity (Secchi Depth)1 ftF
Phosphorus246 µg/LF
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)80Hypereutrophic

Very high nutrients, dense algae, poor clarity

Water Quality Trend: Improving

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

MetricTrendChange/YearYears
Water Clarity Stable0 m/yr2
Phosphorus Improving-402 µg/L/yr2

Location

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County Ranking

Ranked #6 of 7 lakes in Brown County

Nearby Lakes in Brown County

Hypereutrophic Lakes in Minnesota

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Most recent sample: 2023-07-31

Monitoring stations: 1