MADISON COUNTY MINES
Superfund Site Profile
The Madison County Mines Site includes all of Madison County and the “Mine LaMotte Tract” in southern St. Francois County, Missouri. Mining operations beginning in the early 1700s and ending in the mid-1900s resulted in 13 major tailings and chat deposit areas from mineral processing operations. Erosion of the tailings resulted primarily in heavy metals contamination—primarily lead—of soils, sediments, surface water and groundwater. Contaminated soil, tailings and chat was transported to residential properties for use in foundation bases, driveway aggregate, and for use as fill and topsoil. Seven Operable Units (OUs) are designated for the site:
OU 1 – Northern Madison County ...
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