Mud Lake

On the LakeGrade rubric Mud Lake fails the cutoffs — a TSI of 77 and persistent algal pressure put it in the bottom tier. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.

Hypereutrophic conditions mean the lake is operating at the upper end of the productivity scale, with all the bloom risk that implies. 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. Within Hennepin County's 95 graded lakes, Mud Lake ranks 62 — below the local median, though not at the bottom.

Eurasian watermilfoil has been documented at Mud Lake, requiring shoreline management to keep dense mats from crowding native vegetation. The state fisheries records do not list documented species for Mud Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. The lake lacks a documented public access point, so visitor use is limited. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.