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ATTACHMENT C <br /> <br />U.S. Department of the Interior <br />U.S. Geological Survey <br /> <br />Prepared in cooperation with the <br />Oregon Department of Transportation <br /> <br />The Effect of Calcium Magnesium Acetate <br />(CMA) Deicing Material on the Water <br />Quality of Bear Creek, Clackamas County, <br />Oregon, 1999 <br /> <br />Water-Resources Investigations Report 00-4092 <br /> <br /> <br />