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Displaying 1-3 of 3 results for author "Schalk, Charles W."
Descriptions of selected digital spatial data for Ravenna Army Ammunition Plant, Ohio [microform] / by Charles W. Schalk and Robert A. Darner ; prepared in cooperation with the U.S. Army Industrial Operations Command.
- Text
- Columbus, Ohio : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : Information Services [distributor], 1998.
- 1998
Nutrients, organic compounds, and mercury in the Meduxnekeag River Watershed, Maine, 2003 / by Charles W. Schalk and Lan Tornes ; in cooperation with the Houlton Band of Maliseet Indians.
- Text
- Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey, 2005.
- 2005
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/LPS101196Relations among water levels, specific conductance, and depths of bedrock fractures in four road-salt-contaminated wells in Maine, 2007-9 / by Charles W. Schalk and Nicholas W. Stasulis ; prepared in cooperation with Maine Department of Transportation.
- Text
- Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2012.
- 2012
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo33725
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