White Potato Lake

On the LakeGrade rubric, White Potato Lake pulls an A: clarity at 22.6 ft and 17 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 39 puts White Potato 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. With 1,023 acres of surface and partial shoreline records, White Potato Lake is a large water by Wisconsin standards — recreational pressure is spread across a long shoreline. White Potato Lake ranks 21 of 66 in Oconto County — solidly in the upper half of the local distribution.

White Potato Lake carries an invasive watermilfoil record — boat-launch decontamination and shoreline care matter more here than at uninfested lakes. The fishery includes walleye alongside the lake's other 5 documented species — a notable draw for Wisconsin anglers. Public access is available — the lake is on the Wisconsin DNR public-access list. 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.