Loeb Lake

Loeb Lake comes in at a B on the grading rubric — a respectable showing for a Minnesota lake of its size and depth. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.

A TSI near 48 places Loeb Lake in the mesotrophic band — moderate productivity, with seasonal swings between clearer spring water and richer late-summer conditions. Loeb Lake reaches 28 ft at its deepest point — typical for Minnesota mid-sized lakes, with seasonal stratification but limited cold-water refuge. At 9 acres, Loeb Lake sits below the Minnesota median: a small water where shoreline activity has an outsized effect on water quality. Within Ramsey County's 49 graded waters, Loeb Lake sits at rank 5, near the top of the local distribution.

Eurasian watermilfoil has been documented at Loeb Lake, requiring shoreline management to keep dense mats from crowding native vegetation. The fishery is panfish-dominated — bluegill, crappie, and sunfish among the 6 species documented for the lake. No formal public access is documented at Loeb 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.