Jane Lake

Jane Lake earns an A — water clarity, phosphorus, and chlorophyll-a all rate among the best monitored waters in Washington County. 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.

A TSI value of 38 puts Jane Lake in the oligotrophic range, where biological productivity stays low and the water column remains clear. Jane Lake reaches 39 ft at its deepest point — typical for Minnesota mid-sized lakes, with seasonal stratification but limited cold-water refuge. Jane Lake covers 158 acres alongside 2.0 miles of shoreline — a mid-sized water that supports a working fishery without being so large that conditions diverge between basins. Jane Lake ranks 5 of 31 in Washington County, putting it in the upper tier of locally monitored lakes.

Jane Lake is on the Minnesota infested-waters list for zebra mussels — boaters should follow clean-drain-dry protocols when moving gear to or from the lake. The fishery is bass-led, with 11 documented species across the lake's records. Public access is available — the lake is on the Minnesota PCA public-access list. The lake has a partial ice record — 8 observed ice-outs, centered near Apr 9. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.