Pomerleau Lake

On the LakeGrade scale Pomerleau Lake grades a B, with clarity at 10.3 ft and 21 µg/L of phosphorus placing it above the Minnesota median. 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.

Mesotrophic conditions dominate at Pomerleau Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. The lake bottoms out at 26 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. Pomerleau Lake is small — 26 acres alongside 0.8 miles of shoreline — which makes it sensitive to even modest changes in watershed runoff or recreational pressure. Pomerleau Lake ranks 2 of 95 in Hennepin County, putting it in the upper tier of locally monitored lakes.

Pomerleau Lake has no invasive species recorded in Minnesota state databases as of 2021, though prevention practices still apply at all access points. The fishery is bass-led, with 5 documented species across the lake's records. No formal public access is documented at Pomerleau 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.