Breccia-Pipe Uranium Mining in Northern Arizona--Estimate of Resources and Assessment of Historical Effects

Breccia-Pipe Uranium Mining in Northern Arizona—Estimate of Resources and Assessment of Historical Effects

By Donald J. Bills, Kristin M. Brown, Andrea E. Alpine, James K. Otton, Bradley S. Van Gosen, Jo Ellen Hinck, and Fred D Tillman

Summary

Thumbnail of and link to report PDF (3.3 MB)

About 1 million acres of Federal land in the Grand Canyon region of Arizona were temporarily withdrawn from new mining claims in July 2009 by the Secretary of the Interior because of concern that increased uranium mining could have negative impacts on the land, water, people, and wildlife. During a 2-year interval, a Federal team led by the Bureau of Land Management is evaluating the effects of withdrawing these lands for extended periods. As part of this team, the U.S. Geological Survey (USGS) conducted a series of short-term studies to examine the historical effects of breccia-pipe uranium mining in the region. The USGS studies provide estimates of uranium resources affected by the possible land withdrawal, examine the effects of previous breccia-pipe mining, summarize water-chemistry data for streams and springs, and investigate potential biological pathways of exposure to uranium and associated contaminants. This fact sheet summarizes results through December 2009 and outlines further research needs.

First posted February 7, 2011

Report PDF (3.3 MB)

This report is also available in print from:

USGS Information Services, Box 25286,
Federal Center, Denver, CO 80225
telephone: 888 ASK-USGS; e-mail: infoservices@usgs.gov

For additional information contact:
Office information, Arizona Water Science Center
U.S. Geological Survey
520 N. Park Avenue
Tucson, AZ 85719
http://az.water.usgs.gov/

This report is presented in Portable Document Format (PDF); the latest version of Adobe Reader or similar software is required to view it. Download the latest version of Adobe Reader, free of charge.

Suggested citation:

Bills, D.J., Brown, K.M., Alpine, A.E., Otton, J.K., Van Gosen, B.S., Hinck, Jo Ellen, and Tillman, F.D, 2011, Breccia-pipe uranium mining in northern Arizona; estimate of resources and assessment of historical effects: U.S. Geological Survey Fact Sheet 2010-3050, 4 p.