They concluded that environmentally responsible operations were evident at every active mine site explored for this study. There were examples of currently active sulfide mines that have been in operation for more than 10 years and have not caused surface or groundwater pollution. There were several successfully closed and reclaimed mines that operated for at least 10 years. There were a number of old lead-zinc sulfide mines in southwestern Wisconsin that have operated for more than 10 years and have caused no known surface or groundwater pollution problems. With this study, people can base their favorability of the mining industry on fact rather than perceptions of the past.
Modern mining is respectful of the environment.