(1/16/14 DEP/BEP have apparently removed this version of the ew rules as originally presented from their web site. I have my own copy and will create a link to that in the next day or so )
This work undertaken in 1990 https://docs.google.com/file/d/0Bw0jCpuVRzgEei1hU0hEMVVUVVk/edit?usp=sharing
for the first time very clearly laid out the environmental challenges and anomalies of the deposit and the risks to down gradient ground and surface waters and pristine habitats. Almost all parts of the deposit are highly reactive and with absolutely no neutralizing potential. Average concentrations of arsenic are anomalously high throughout the deposit and phenomenally high in certain areas. The nearest comparable I have found is the Brunswick 12 massive sulfide just across the border ( Bathurst Camp)
Here is a graphic easy to understand summary of Bolidens stunning 1990 analysis.
Mark Stebbins was the key DEP official on the Boliden work at Bald Mountain and is still mining coordinator at DEP. So although there was no public release or discussion of this alarming picture of Bald Mountain, this information has existed since 1990 and was also known to now Exceutive Analysr at the BEPm Cynthia Bertocci who was at the time with LURC. I extracted it from the later Black Hawk application (1995) but it was also in the DEP/LURC file on Boliden.
August 27, 2013
2013 Address in Winnipeg on challenges of VMS deposits