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<br />, <br /> <br />United States Geological Survey, USGS, "Water quality assessment of the South Platte River <br />Basin, Colorado, Nebraska, and Wyoming- Analysis of available nutrient, suspended sediment, <br />and pesticide data, water years 1980-1992." Water Resources Investigations Report 94-4095, <br />National water quality assessment program, Denver, Colorado, 1995. <br /> <br />22 <br /> <br />