The Gold King Mine spill released 9.3 acre feet of Acid Mine Drainage (AMD) and an estimated 400 kg of Copper. 1 acre-foot = 1233 m3 Colorado Department of Public Health and the Environment (CDPHE) allowable concentration for dissolved copper Cu+2 = 50 µg/L Using these simple assumptions, did the dissolved copper concentration exceed the CDPHE standard for dissolved Copper?
The Gold King Mine spill released 9.3 acre feet of Acid Mine Drainage (AMD) and an...