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Livestock <br />Three types of livestock are included: cattle, sheep, and hogs. To calculate consumptive use <br />? <br />for HUs, a method was used to interpolate Colorado Agricultural Statistics (CAS) since CAS <br />reports livestock amounts by county. <br />Stock Ponds <br />For each County-HU unit, two aggregates of the storage capacities of the stock ponds are <br />? <br />determined. One aggregate is for all stock ponds above 7,750 feet and the other is for stock <br />ponds below 7,750 feet. A surface area is determined and a fullness factor is applied depending <br />on the elevation. These values are multiplied by the evaporation minus the rainfall to achieve a <br />consumptive use value. <br />Evaporation from Reservoirs <br />Each reservoir is entered as a separate field in the data input file and identified by unique <br />? <br />County-HU unit. <br />Municipal and Industrial <br />The 1980 and 1990 Population Census data are used to estimate the annual values for the years <br />? <br />1985-1989. This data is provided by each municipal location and these locations are combined <br />for each County-HU unit. <br />Mineral Resources <br />There is currently no data for the prototype area. <br />? <br />Thermal Electric <br />There are no thermal electric plants in the prototype area, but sites and data have been located <br />? <br />for HU14010005, HU14050001, and HU1403003. <br />Exports (Transbasin Diversions) <br />These data were taken directly from the Annual Report of the Division of Water Resources. <br />? <br />3.0 CONCLUSIONS AND RECOMMENDATIONS <br />The CU model provides the user with a modeling environment that incl udes the selection and <br />modification of parameters used to estimate consumptive use for a given area and time period. The CU <br />model is composed of a FORTRAN program and a GUI. The CU model program can be used separately <br />from the interface to accommodate users on any computer platform. <br />5 <br />A275 01.09.95 1.14-9 Lange <br />