Advances in Acid Rock Drainage (ARD) Characterization of Mine Wastes
Research was carried out to improve acid rock drainage (ARD) prediction methodologies, focussing on resolving uncertainties in acid base accounting (ABA) methods. Advancements, their application, and interpretation are reported. Consideration of both net acid production potential (NAPP) and net acid generation (NAG) test results provide a more reliable routine screening technique than either test alone, increasing confidence in acid potential classification and identifying apparent conflicts requiring further investigation.
Stewart, W.A., S.D. Miller, and R. Smart. 2006. Advances in acid rock drainage (ARD) characterization of mine wastes. Paper presented at the 7th International Conference on Acid Rock Drainage (ICARD), St. Louis, Missouri.
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Public Hearings
The Forest Service will host its remaining two public meetings in Queen Valley on October 8 and in Tempe on October 10.
Video & Materials
A video presentation – the same information introduced at each public meeting – as well as meeting materials (posters and newsletter) are available for public review.
Draft EIS Released
The Draft Environmental Impact Statement (DEIS) for the Resolution Copper Project and Land Exchange is now available for review under the 'EIS Info' tab.
Comment on DEIS
Optional ways to comment on the Draft EIS are located under the 'EIS Info' and the 'Public Involvement' tabs.
Media & General Info
Point of Contact
John Scaggs
Tonto National Forest
john.scaggs@usda.gov
Apache Leap Special Management Area
Apache Leap SMA website