Catalog Search Results
Author
Pub. Date
[2004]
Description
The selected remedy for OU4 addresses contaminated surface water, ground water, and sediment from mine waste piles within the Study Area. The cleanup strategies will address threats through the capping or removal of waste piles and treatment of point and non-point sources of surface water contamination.
Author
Pub. Date
[2009]
Description
This Proposed Plan identifies the preferred alternative for OU4 water treatment. The mining-impacted waters of Gregory Gulch, Gregory Incline and National Tunnel are acidic and contain high concentrations of heavy metals. This proposed amendment calls for construction of a new water treatment plant designed and operated specifically to treat discharges from the National Tunnel and Gregory Incline, as well as base surface water flow and alluvial ground...