Sand Lake

On the LakeGrade rubric, Sand Lake pulls an A: clarity at 42.7 ft and 20 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.

A TSI value of 35 puts Sand 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's surface area is not consistently recorded across state datasets — physical context remains partial. Sand Lake ranks 17 of 38 in Barron County — solidly in the upper half of the local distribution.

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