(1 - 9 von 9
)
EPA prepares to dam toxic mine waste leaking from Red and Bonita Mine
www.denverpost.com
Christoph Goss, mining engineer with Deere & Ault Consultants, INC. and EPA on. Joe Amon, The Denver Post. EPA officials are preparing to close this bulkhead dam and trap toxic mine water inside the Red and Bonita Mine tunnel above Silverton. The bulkhead was installed in 2004, but has not been ...
Needle's Eye Tunnel is Feasible: Study by Deere and Gross ...
www.needleseyetunnel.org
"The Needle's Eye Tunnel can be safely repaired for public access using shotcrete and rock bolts." Don W Deere, PE & Christoph Goss, PhD, ...
EPA probes toxic Colorado mine tunnels, investigates possible harm ...
www.denverpost.com
Christoph Goss, mining engineer with Deere & Ault Consultants, INC. follows Allen Sorenson with the state of Colorado through deepening ...
sortiert nach Relevanz / Datum