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<br />The two frequency curveS were assumed to represent independent <br />events and a composi te flow-frequency curve was developed for each <br />gaging station. A regional regression analysis was then made to <br />determine peak flow as a function of drainage area and return <br />period (Reference 6). Flow data on the White River were based on <br />the following USGS stream gages: <br /> <br /> Gage Gage Number Years of Record <br />White River near Watson, Utah 09306500 51 <br />White River near Rangely, <br />Colorado 09306300 8 <br />White River near Meeker, <br />Colorado 09304800 70 <br /> <br />For the ungaged streams, Coal Mine Draw and College Canyon Draw, <br />peak flows were adopted from the hydrology analysis previously <br />conducted in the development of a storm-drainage master plan for the <br />Town of Rangely (Reference 7). College Canyon Draw and Coal Mine <br />Draw have drainage areas of 1.8 and 2.9 square miles, respectively, <br />and are below 6,000 feet. Rainfall events generate flood peaks for <br />small basins below elevation 6,000 feet. <br /> <br />Peak diSCharge-drainage area relationships for the White River, Coal <br />Mine Draw, and College Canyon Draw are shown in Table 1. <br /> <br />7 <br />