Granite Creek Mine #5 abbreviated preliminary assessment

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Title: Granite Creek Mine #5 abbreviated preliminary assessment
Author: Wallowa-Whitman National Forest (Agency : U.S.)
Abstract: Assesses mine site consisting of a large collapsed adit and approximately 500cy of wasterock material adjacent to Granite Creek, with numerous trenches and apparent hydraulic mining. A Niton XLt unit found that most metals at the site exceeded screening criteria for birds, invertebrates, and plants, but only arsenic (59.7 mg/kg) exceeded EPA Region goals. Since the wasterock forms a part of the embankment for Granite Creek, the site has been given a High Priority for further site assessment.
Description: 18 pp. Tables, appendices, map, illus. T8S, R35.5E, S23. Captured June 5, 2008.
Date: 2006-08

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