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012$ <br />WATER - QUALITY VARIATIONS AND TRENDS IN MONUMENT <br />AND FOUNTAIN CREEKS, EL PASO AND PUEBLO COUNTIES, <br />COLORADO, WATER YEARS 1976 -88 <br />by Barbara C. Ruddy <br />U.S. GEOLOGICAL SURVEY <br />Water - Resources Investigations Report 91 -4176 <br />Prepared in cooperation with the <br />COLORADO SPRINGS DEPARTMENT OF U IL MES <br />aim-40 <br />