Krans Lake

On the LakeGrade rubric Krans Lake fails the cutoffs — a TSI of 70 and persistent algal pressure put it in the bottom tier. 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.

Hypereutrophic conditions mean the lake is operating at the upper end of the productivity scale, with all the bloom risk that implies. The lake bottoms out at 31 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. At 35 acres, Krans Lake sits below the Minnesota median: a small water where shoreline activity has an outsized effect on water quality. Within the 19 graded lakes of Isanti County, Krans Lake sits at rank 17, near the bottom of the county list.

No invasive species are currently listed at Krans Lake — the lake remains off the Minnesota infested-waters roster. 9 fish species are on record, with panfish making up the recreational core. No formal public access is documented at Krans 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.