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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />The Arapahoe County FIS study used the Water Supply Paper 1680 results verbatim, <br />while the Adams County FIS study adjusted the discharge, settling on a value about half <br />of the Water Supply Paper 1680 l00-year discharge. <br /> <br />Stream gage information does not exist on Box Elder Creek, precluding the use of a gage <br />analysis to estimate discharges for various return periods. It is questionable whether gage <br />information from other watersheds in the region could be appropriately applied to Box <br />Elder Creek because of the unusual shape of the Box Elder Creek watershed. <br /> <br />Because this hydrologic analysis is consistent with standard UDFCD hydrologic criteria <br />and is in close agreement with the detailed COE modelling effort, the project sponsors <br />accepted the results of this hydrologic analysis for use in subsequent phases of the Box <br />Elder Creek Outfall Systems Planning Study and the Coyote Run FHAD. <br /> <br />DEN1OO15186.WP5 <br /> <br />3-10 <br />