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LakeQuality
C

Lk Superior .02 Mi N of Dutchman Creek Mouth Lake

Douglas County, WisconsinLimited DataEutrophic

Lk Superior .02 Mi N of Dutchman Creek Mouth Lake earns a C — middle-of-the-pack water quality, with one or two parameters dragging the average down from a stronger grade. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.

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. Lk Superior .02 Mi N of Dutchman Creek Mouth Lake ranks 35 of 40 in Douglas County — at the lower end of the locally monitored distribution.

No invasive species are currently listed at Lk Superior .02 Mi N of Dutchman Creek Mouth Lake — the lake remains off the Wisconsin infested-waters roster. The state fisheries records do not list documented species for Lk Superior .02 Mi N of Dutchman Creek Mouth Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. 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, Wisconsin DNR Surface Water, last sampled 2022-08-26. Grade methodology: LakeGrade methodology.

Swimming Safety

Generally safe for swimming, moderate water quality

Water Quality Grade: C, Fair

No clarity data. Phosphorus level: 49 µg/L. Trophic State Index: 60.

MetricValueGrade
Water Clarity (Secchi Depth)No data
Phosphorus49 µg/LC
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)60Eutrophic

High nutrients, frequent algae, reduced clarity

Water Quality Trend: Stable

Based on 5 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Declining-4.24 m/yr2
Phosphorus Improving-1.01 µg/L/yr5

Location

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County Ranking

Ranked #35 of 40 lakes in Douglas County

Nearby Lakes in Douglas County

State Parks Near Lk Superior .02 Mi N of Dutchman Creek Mouth Lake

Eutrophic Lakes in Wisconsin

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Most recent sample: 2022-08-26

Monitoring stations: 1