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<br />XLO\'I-FR~UEHCY AliALYSIS <br /> <br />The recorded annual IIkClximum peak flows for the stream gaging stations <br /> <br />of Dolores River below Rice, and Dolores River at Dolores were analyzed <br /> <br />statistically according to the Water Resources Council guidelines. Table <br /> <br />8 shows the computed statistics. <br /> <br />TABLE 8 <br /> <br />ANNUAL PEAK FLOI{ STATISTICS <br /> <br />.GAG~ <br /> <br />N <br /> <br />M <br /> <br />S <br /> <br />K <br /> <br />Dolores River at Dolores <br /> <br />61 <br /> <br />37ii2 <br /> <br />0.22 <br /> <br />-0.03 <br /> <br />Dolores River below Rico <br /> <br />24 <br /> <br />1267 <br /> <br />0.15 <br /> <br />-0.05 <br /> <br />Wb.ere: <br /> <br />N <br />M - <br />S - <br />. K - <br /> <br />number of events <br />Mean <br />Standard Deviation (LOG) <br />SKEW <br /> <br />These statistics represent all-events, Le., ra:Ln and snowmelt flood peaks. <br /> <br />To determine the type of event that would cause the rarer floods, the rain <br /> <br />flood events were separated from the snmvmelt events and statistically <br /> <br />analyzed at the Dolores gage. The Rico gage rec(>nl was net long enough <br /> <br />for th:ls type of analysis. <br /> <br />F:lgure 7 illustrates the separated and combined discharge...frequency' <br /> <br />curves developed for the Dolores River at Dolor,,,, gaging station. The <br /> <br />study area location of "Dolores River below the confluence of Lost Canyon <br /> <br />CJ:eek" is assumed to have the same frequency re,L,;:t:lonship as the Dolores <br /> <br />gage location, 1. e., Lost 'Canyon Creek does not: blve an effect on the <br /> <br />11. <br /> <br />" <br />