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Shishebogama Lake

Oneida County, WisconsinMesotrophic

On the LakeGrade rubric, Shishebogama Lake pulls an A: clarity at 10.0 ft and 14 µg/L of phosphorus put it in the top bracket for Wisconsin. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.

The lake sits in the mesotrophic zone — the band where most well-managed Wisconsin lakes fall. 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. Shishebogama Lake ranks 31 of 134 in Oneida County, putting it in the upper tier of locally monitored lakes.

No invasive species are currently listed at Shishebogama Lake — the lake remains off the Wisconsin infested-waters roster. The state fisheries records do not list documented species for Shishebogama 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 2026-04-22. Grade methodology: LakeGrade methodology.

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Swimming Safety

Excellent for swimming, crystal clear water with minimal algae

Water Quality Grade: A, Excellent

Good clarity, visible to about 10 ft. Phosphorus level: 13.8 µg/L. Trophic State Index: 43.

MetricValueGrade
Water Clarity (Secchi Depth)10 ftB
Phosphorus13.8 µg/LA
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)43Mesotrophic

Moderate nutrients, good water quality

Water Quality Trend: Improving

Based on 6 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Improving+0.221 m/yr6
Phosphorus Stable-0.21 µg/L/yr6
See year-by-year chart →

Location

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County Ranking

Ranked #31 of 134 lakes in Oneida County

Nearby Lakes in Oneida County

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Most recent sample: 2026-04-22

Monitoring stations: 2

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