Ebert Lake

Ebert Lake earns an A — water clarity, phosphorus, and chlorophyll-a all rate among the best monitored waters in Portage County. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.

The lake's low TSI puts it in oligotrophic territory — the cleanest of the four trophic classes, but also the most vulnerable to nutrient-driven shifts. Ebert Lake reaches 30 ft at its deepest point — typical for Wisconsin mid-sized lakes, with seasonal stratification but limited cold-water refuge. The lake is compact at 12 acres, with partial shoreline records and little volume to buffer nutrient inputs. Within Portage County's 28 graded waters, Ebert Lake sits at rank 1, near the top of the local distribution.

Ebert Lake has at least one documented invasive species (Banded Mystery Snail), so boaters and anglers should observe clean-drain-dry steps when leaving the lake. The fishery is bass-led, with 3 documented species across the lake's records. 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.