Peter Lake

On the LakeGrade scale Peter Lake grades a B, with clarity at 9.9 ft and 43 µg/L of phosphorus placing it above the Minnesota median. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.

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 Hennepin County's 95 graded waters, Peter Lake sits at rank 11, near the top of the local distribution.

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