Oneida Lake

On the LakeGrade rubric, Oneida Lake pulls an A: clarity readings still being added and 13 µg/L of phosphorus put it in the top bracket for Wisconsin. Sub-grades cluster within a single letter of each other, which usually means the lake is in stable trophic balance rather than fighting one specific stressor.

A TSI value of 38 puts Oneida Lake in the oligotrophic range, where biological productivity stays low and the water column remains clear. The lake's maximum depth is not yet documented in state morphometric records — context for its physical structure remains limited. The lake is compact at 12 acres, with partial shoreline records and little volume to buffer nutrient inputs.

No invasive species are currently listed at Oneida Lake — the lake remains off the Wisconsin infested-waters roster. The state fisheries records do not list documented species for Oneida 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.