East Vadnais Lake

On the LakeGrade scale East Vadnais Lake grades a B, with clarity readings still being added and 23 µg/L of phosphorus placing it above the Minnesota median. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.

A TSI near 49 places East Vadnais Lake in the mesotrophic band — moderate productivity, with seasonal swings between clearer spring water and richer late-summer conditions. East Vadnais Lake is unusually deep for Minnesota at 58 ft, which buffers the lake against summer warming and helps the deep water stay oxygenated. The lake's 393 acres and 4.9 miles of shoreline put it in the mid-range bucket — large enough for varied use, small enough that watershed inputs reach the whole basin. East Vadnais Lake ranks 7 of 49 in Ramsey County, putting it in the upper tier of locally monitored lakes.

Zebra mussels have been documented at East Vadnais Lake, which alters the filter-feeding balance and can paradoxically increase water clarity while disrupting the food web. The fishery includes walleye alongside the lake's other 15 documented species — a notable draw for Minnesota anglers. The lake lacks a documented public access point, so visitor use is limited. 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.