We constantly receive questions on aspects of mound design and installation. One common question is: What soil problems or conditions warrant installation of a mound?
Initial research on mounds began as a solution for slowly permeable soils with high water tables. In Minnesota, there is a long history of using mound treatment systems to overcome specific soil and site limitations. These limitations include slowly permeable soils with percolation rates of 61 to 120 minutes per inch or slower, as well as rapidly permeable soils with percolation rates of 1 to 5 minutes per inch, and shallow soils over bedrock or high











