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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 />white River V <br /> <br />Sixty-six years of streamflow records are available at Meeker and these records were <br />- ~ - - - .--- <br /> <br />usee'! to determine the magnitude of recurrent floods for the White River. Based on <br /> <br />the newspaper account of the spring snowmelt flood of June 16, 1921,_ and opinions <br /> <br />of local residents, s~owmelt fl~o..ds were considered t~cause the highest_ sta~es on ~) <br /> <br /> <br />the White River throughout t~e study are!';.,(!or t~ lon~est ~:~~s.O~_!!!::~The <br /> <br /> <br />~ gaging i'!tation records helped verify this. <br />=, ". --: " <br /> <br />,< <br />Comparison of gaging records for the years that the station below Meeker has <br /> <br />been functioning revealed only a slight attenuation of the flood peaks. The station' <br />---:--- ~.........- ,-.-'- -- <br /> <br />near Meeker measures flow from 90% of the White River watershed above Meeker, <br /> <br />but because near:l}'all major ~nowme1t runoff originate~ above the gaging station, <br /> <br />the peak flows for the 10, 50, 100 and 500 year recurrent floods which were cal- <br /> <br />culated for the gaging station site were applied to the reaches of the White River <br /> <br />within the study area. The Gumbel Extreme Value Distribution is the statistical, v <br />-.---- -".'-, <br /> <br />analysis procedure used to derive the peak flows shown in Table 3. <br />~.---, "'., -~-, <br /> <br />sulphur Creek <br /> <br />v' <br />Because of wide variation of precipitation and runoff with changes in elevation <br /> <br />throughout the White River Basin ,(a. region~)unoff frequency relationshiP'~ri~e~ <br /> <br />(from.1oCal stream gaging records could not be accurately applie5! to determine peak <br /> <br />flows on Sulphur Creek. Whereas the stJ'eams ~ast of Meeker for which records are <br /> <br />available are perennial streams of which the highest elevations are tn excess of <br /> <br />9,000 feet and thl:l peak flows occur in the Spring from melting sno.y , Sulphur Creek <br />-' -~- <br /> <br />7 <br />