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<br />· 002871 <br /> <br />ABSTRACT <br /> <br />. <br /> <br />Baseline water quality conditions in the White River and Milk Creek <br />drainages in Western Colorado were documented by the U.S. Environmental <br />Protecti on Agency duri ng the Fa 11 "low flow" peri od in 1975 and the Spri ng <br />"high flow" period of 1976. A total of 35 water quality parameters were <br />measured at 19 sampling locations covering a stream reach of approximately <br />200 km (125 mil. <br /> <br />. <br /> <br />. <br /> <br />Pollution parameter values exceeding recommended criteria and/or <br />proposed stream standards were found at several locations, with the <br />largest number of violations occurring in the downstream reach of the White <br />River between Meeker and Rangely, Colorado. Excessive concentrations of <br />several parameters were also measured in three White River tributary <br />streams - Yellow Creek, Coal Creek, and Little Beaver Creek. The param- <br />eters most frequently in violation included TDS, TSS, total iron, total <br />zinc, and total phosphorus. There was no clear indication that either <br />the lower or higher flow rates produced the greater number of pollution <br />prob 1 ems. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />i i <br /> <br />. <br />