Dr. Donald Baumgartner testifies in Reserve Mining trial
August 10, 1973 - MER’s Greg Barron reports on Reserve Mining trial, where issues of asbestos from dumping tailings into Lake Superior are being argued. Dr. Donald Baumgartner, an engineer for the Environmental Protection Agency, testified for the state using a taconite settling study that shows particles can carry great distances in Lake Superior. Reserve Mining claims taconite is carried to a 600 foot "Great Trench."