Dart Lake

On the scoring rubric Dart Lake grades a D: clarity at 3.0 ft and 61 µg/L of phosphorus keep it in the lower bracket for Becker County. 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 in the eutrophic range signals a lake doing what nutrient-loaded waters do — supporting an active algal community at the cost of clear water. 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 the 93 graded lakes of Becker County, Dart Lake sits at rank 90, near the bottom of the county list.

No invasive species are currently listed at Dart Lake — the lake remains off the Minnesota infested-waters roster. The state fisheries records do not list documented species for Dart Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. No formal public access is documented at Dart Lake — most use is by shoreline residents and their guests. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.