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<br />~ ~«~~ <br />~~ • Since it has been shown that the possibility of ground- <br />I~ water discharge exists, it is recommended that an additional, <br />more intensive study be performed on the Yampa. This study should <br />again be performed during loca flow, steady-state conditions. <br />However, it should focus only on the 2.2 mile reach between <br />Station 2A and S where the surface/ground-water exchanges were <br />identified. The additional aspects of this study should include <br />the following: <br />~ a rigorous time of travel dye study <br />between Stations 2A and. 5, <br />. temporary recording stream gages to be in- <br />stalled at both Stations 2A and 5 to define <br />better any small changes in channel storage, <br />• at least four full days of measurements to <br />'~ • 1 help corroborate the results, <br />.l <br />• not less than six measurement stations over <br />the 2.2 miles to minimize long stretches <br />with no data, <br /> <br />s <br />i <br />i <br />a <br />i • 1 <br />• an increased number of sections at each mea- <br />surement station to reduce the effect of <br />random errors in the measurement process, and <br />• aerial reconnaissance and photography of the <br />river to determine both the size of vegetated <br />riparian areas and average water surface width. <br />5-2 <br />