The DNR, State and St.Louis County all have regulations aimed at protecting the quality of our lakes. Generally the requirements concern how far back from the lake you can build (100 feet), how much alteration you can make to your shoreline, and what activities are permissible within the 75-foot shore impact zone. The goal is to minimize erosions and other activities that can cause lake pollution.
St. Louis County regulates land alteration within 300 feet of lakes and rivers.It is smart to check with the county before undertaking any major project to make sure you do not incur fines or have to undo your work. This includes putting any roads down to the lake.
Removal of vegetation is also regulated. The regulations permit the removal of diseased and storm damaged trees as well as removal of up to only twenty-five percent (25%) of the vegetation provided it is not a solid block of trees.
Please check with the county Planning Department (specifically the Land Use staff) before starting any projects near the shoreline. http://www.stlouiscountymn.gov/planning