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LakeQuality
C

Lk Superior .63 Mi Wsw of Fisher Creek Mouth Lake

Douglas County, WisconsinLimited DataEutrophic

Lk Superior .63 Mi Wsw of Fisher 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.

At a TSI of 55, Lk Superior .63 Mi Wsw of Fisher Creek Mouth Lake reads as eutrophic — nutrient-rich enough that summer algal growth and reduced clarity are expected, not unusual. 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 the 40 graded lakes of Douglas County, Lk Superior .63 Mi Wsw of Fisher Creek Mouth Lake sits at rank 34, near the bottom of the county list.

Lk Superior .63 Mi Wsw of Fisher 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 .63 Mi Wsw of Fisher Creek Mouth Lake, 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, 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: 34 µg/L. Trophic State Index: 55.

MetricValueGrade
Water Clarity (Secchi Depth)No data
Phosphorus34 µg/LC
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)55Eutrophic

High nutrients, frequent algae, reduced clarity

Water Quality Trend: Stable

Based on 4 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Declining-1.49 m/yr2
Phosphorus Improving-0.58 µg/L/yr4

Location

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County Ranking

Ranked #34 of 40 lakes in Douglas County

Nearby Lakes in Douglas County

State Parks Near Lk Superior .63 Mi Wsw of Fisher 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

Fish and recreation data from Wisconsin DNR Lakes

Most recent sample: 2022-08-26

Monitoring stations: 1