Hydrogeology and Ground-Water Quality of the County Road a Disposal Site on the Bad River Indian Reservation, Ashland County, Wisconsin: 1997-98.

摘要

The County Road A disposal site, located on the Bad River Indian Reservation, Ashland County, Wisconsin, contains papermill sludge generated by a former mill in the City of Ashland. Since the time of disposal (1968-1970) the site has been the subject of investigations by the U.S. Bureau of Indian Affairs, the U.S. Environmental Protection Agency, and private consultants. During 1997-1998, an investigation was conducted by the U.S. Environmental Protection Agency and the Natural Resources Department of the Bad River Indian Tribe, to evaluate the hydrogeology and ground-water quality of the disposal site, particularly with respect to the hydraulic connection between two ponds at the site and the shallow ground-water-flow system. Additional monitoring wells and well points were installed, and additional hydrogeologic, ground-water quality, and geophysical data were collected. The data from this and previous studies were integrated and interpreted.