Little Cedar Lake

Little Cedar Lake sits at the top of the Wisconsin DNR grading rubric with an A, a mark reached by the cleanest lakes in 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 near 42 places Little Cedar Lake in the mesotrophic band — moderate productivity, with seasonal swings between clearer spring water and richer late-summer conditions. 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. Among the 15 graded lakes in Washington County, Little Cedar Lake sits at rank 6, above the county median.

Little Cedar Lake has at least one documented invasive species (Grass Carp), so boaters and anglers should observe clean-drain-dry steps when leaving the lake. The state fisheries records do not list documented species for Little Cedar Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.