Sunfish Lake

Sunfish Lake sits at a C on the grading scale — not impaired, not pristine, with summer measurements that vary year to year.

A TSI near 46 places Sunfish 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. Sunfish Lake ranks 14 of 31 in Washington County — solidly in the upper half of the local distribution.

Eurasian watermilfoil is established at Sunfish Lake, which can dampen recreational access and pressure the native plant community. The state fisheries records do not list documented species for Sunfish Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. No formal public access is documented at Sunfish Lake — most use is by shoreline residents and their guests. 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.