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Open-File Report 2008–1170 *pending release*

Leachate Geochemical Results for Ash Samples from the June 2007 Angora Wildfire Near Lake Tahoe in Northern California

By Philip L. Hageman, Geoffrey S. Plumlee, Deborah A. Martin, Todd M. Hoefen, Monique Adams, Paul J. Lamothe, Todor Todorov, and Michael W. Anthony

Overview

Thumbnail of and link to report PDF (376 kB)This report releases leachate geochemical data for ash samples produced by the Angora wildfire that burned from June 24 to July 2, 2007, near Lake Tahoe in northern California. The leaching studies are part of a larger interdisciplinary study whose goal is to identify geochemical characteristics and properties of the ash that may adversely affect human health, water quality, air quality, animal habitat, endangered species, debris flows, and flooding hazards.
      The leaching study helps characterize and understand the interactions that occur when the ash comes in contact with rain or snowmelt, and helps identify the constituents that may be mobilized as run-off from these materials. Similar leaching studies were conducted on ash and burned soils from the October 2007 southern California wildfires (Hageman and others, 2008; Plumlee and others, 2007).

Version 1.1

Posted July 2008


Suggested citation:

Hageman, Philip L., Plumlee, Geoffrey S., Martin, Deborah A., Hoefen, Todd M., Adams, Monique, Lamothe, Paul J., Todorov, Todor, and Anthony, Michael W., Leachate Geochemical Results for Ash Samples from the June 2007 Angora Wildfire near Lake Tahoe in Northern California, 2008: U.S. Geological Survey Open-File Report 2008–1170. 14 p.



Contents

Overview

Introduction

Sample Collection and Preparation

USGS Field Leach Test (FLT)

Analytical Methods

Acknowledgements

USGS Contacts

References



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