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CLIMATOLOGIC, SOIL - WATER, GROUND- WATER, GEOLOGIC, <br />SURFACE - WATER, AND WATER-QUALITY DATA FOR A <br />SURFACE COAL MINE IN NORTHWESTERN COLORADO <br />by Robert S. Williams, Jr., Gregory M. Clark, and Norman E. Spahr <br />U.S. GEOLOGICAL SURVEY <br />Opera -File Report 92 -122 <br />Prepared ti on vAffi ft <br />U.S. BUREAU OF • I <br />• •••�• t0'•• I • •• • •• <br />II lob • . • <br />