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LakeQuality
B

Lk Superior .05 Mi N of Pearson Creek Mouth Lake

Douglas County, WisconsinLimited DataMesotrophic

Lk Superior .05 Mi N of Pearson Creek Mouth Lake comes in at a B on the grading rubric — a respectable showing for a Wisconsin lake of its size and depth. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.

A TSI near 48 places Lk Superior .05 Mi N of Pearson Creek Mouth Lake in the mesotrophic band — moderate productivity, with seasonal swings between clearer spring water and richer late-summer conditions. 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 Douglas County's 40 graded lakes, Lk Superior .05 Mi N of Pearson Creek Mouth Lake ranks 26 — below the local median, though not at the bottom.

Lk Superior .05 Mi N of Pearson Creek Mouth Lake has no invasive species recorded in Wisconsin state databases as of 2022, though prevention practices still apply at all access points. The state fisheries records do not list documented species for Lk Superior .05 Mi N of Pearson 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

Good for swimming, clear water with low algae levels

Water Quality Grade: B, Good

No clarity data. Phosphorus level: 21 µg/L. Trophic State Index: 48.

MetricValueGrade
Water Clarity (Secchi Depth)No data
Phosphorus21 µg/LB
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)48Mesotrophic

Moderate nutrients, good water quality

Water Quality Trend: Stable

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

MetricTrendChange/YearYears
Water Clarity Declining-3.13 m/yr2
Phosphorus Improving-1.22 µg/L/yr5

Location

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County Ranking

Ranked #26 of 40 lakes in Douglas County

Nearby Lakes in Douglas County

State Parks Near Lk Superior .05 Mi N of Pearson Creek Mouth Lake

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Fish and recreation data from Wisconsin DNR Lakes

Most recent sample: 2022-08-26

Monitoring stations: 1