Acceptable, Achievable, Sustainable? Assessing Post-Closure Goals at Legacy Mine Sites

Description:	"Closure is now included in the early stages of mine planning and development. Operators can adjust to create sustainable systems that achieve pre-defined closure goals. Legacy mine sites include abandoned, inactive, and operating facilities that were constructed before the advent of modern closure planning. Several examples illustrate the difficulty of defining appropriate closure goals for legacy sites. At an abandoned underground mine, water quality is impacted by a spring discharging from the workings. An active water treatment system will likely be operated by a county agency in perpetuity. Active closure elements can be less sustainable than passive systems, but were thought to be more protective. Groundwater is impacted in an historic copper-mining district. Setting closure goals for water quality in this area is complicated by pre-existing impacts and overlapping regulatory programs. Other examples include a semi passive treatment system at a remote, abandoned mine and defining background conditions for re-opening an historic mine. These case studies illustrate the difficulty of setting acceptable, achievable, and sustainable closure goals at legacy mine sites."
Recorded Date:	July 2, 2015
Speaker(s):	Walter Weinig, Senior Hydrologist, Montgomery & Associates Inc.
Format:	MP4
Download Size:	26, 424 KB
Length:	36:51

Files

Quantity:

Want to save more?

Log into see if you qualify for a lower rate.

Members

save $45.00 or more

Join

Acceptable, Achievable, Sustainable? Assessing Post-Closure Goals at Legacy Mine Sites

There are not any reviews for this product.