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both locations. The monthly correlation factors in conjunction with the Roaring Fork <br />above Aspen flow records were used to estimate flows at the Snowmass Creek Pump <br />Station. Upstream diversions for the period of interest were added to the Snowmass <br />Creek Pump Station to obtain an estimate of the virgin flow for Snowmass Creek. The <br />synthetic (correlated) period of streamflow record was April 2002 through October 2002. <br />Downstream Tributary Inflow. Tributary inflow to Snowmass Creek, <br />downstream from the District's Snowmass Creek Pump Station, was accounted for in the <br />model at three major tributaries: Hunter Creek, Wildcat Creek and Capital Creek. <br />Tributary inflow values were estimated based on a percentage of Snowmass Creek <br />virgin stream flows. The inflow from Hunter Creek and Wildcat Creek is based on a <br />correlation of tributary area and mean basin elevation verses monthly stream flow at <br />gages in the Roaring Fork basin. Inflow from Capital Creek was assumed equal to the <br />calculated streamflow in Snowmass Creek at the junction of the two streams, which is <br />believed adequate for modeling the short, lower reach of Snowmass Creek below <br />Capital Creek and above the Roaring Fork River. <br />Water Rights. The District's and other Snowmass Creek water rights that divert <br />from East Snowmass Creek and Snowmass Creek were explicitly modeled. Only non- <br />District water rights with an absolute decreed rate of 1.0 cfs or more were considered in <br />the model, i.e., smaller stock water use and domestic water rights were not modeled. <br />The District's Brush Creek water rights (rights that divert from Brush Creek, West Fork <br />Brush Creek and East Fork Brush Creek) were considered in a more general way under <br />the assumption that in a dry year very little water would be available under those rights. <br />The impact of the Brush Creek rights is accounted for in the Demand Side model. <br />In-Stream Flow Rights. The minimum in-stream flow right for Snowmass <br />Creek, between the confluence with West Snowmass Creek and the confluence with <br />Capital Creek, for the critical October 16 through March 31S period, is a variable rate <br />dependent upon the stream flow recurrence interval during an indicator stream flow <br />period of October 11 through October 15 During 1977 the average daily stream flow <br />during the indicator period was less than 19-cfs, and therefore, in accordance with the in- <br />Page 6 <br />