Flekkefjord Lake

On the LakeGrade rubric Flekkefjord Lake fails the cutoffs — a TSI of 63 and persistent algal pressure put it in the bottom tier.

Eutrophic conditions are the baseline here: clarity drops noticeably in late summer, and dissolved oxygen near the bottom can become a concern. 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 10 graded lakes of Grant County, Flekkefjord Lake sits at rank 9, near the bottom of the county list.

No invasive species are currently listed at Flekkefjord Lake — the lake remains off the Minnesota infested-waters roster. The state fisheries records do not list documented species for Flekkefjord Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. No formal public access is documented at Flekkefjord 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.