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Last modified
7/29/2009 8:03:12 AM
Creation date
10/9/2006 3:02:55 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8283.200
Description
Colorado River Basin-Colorado River Computer Models-Colorado River Decision Support System-Ray
State
CO
Water Division
5
Date
7/13/1994
Title
Consumptive Use Modeling-Task 1.14b-Consumptive Use Prototype Development-Phase Iia
Water Supply Pro - Doc Type
Report/Study
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<br />, '. lJtd.j48 <br /> <br />Task 1.14(b). Consumptive Use Prototype Development <br /> <br /> <br />The above equation is repeatedly used for each type of livestock to obtai~Lhile the <br />above methodology is too specific, its implementation should not be difficult since the <br />required data are widely available. The types of livestock that will be considered are <br />cattle, sheep and hogs. Again, the subroutine allows the user to include easily other types <br />of livestock. <br /> <br />2.8 CU Methods for Municipal and Industrial <br /> <br />2.8.1 Develop Methodology <br /> <br />Municipal and industrial consumptive use is an estimate of water use of all urban and <br />rural population and considered industries in the given area. The methodology divides <br />this type of consumptive use into three categories namely: municipal, mineral resources <br />(industry type 1) and thermal electric power (industry type 2). The municipal <br />consumptive use is estimated based on a per capita usage of water and the population of <br />the area being considered. Different per capita usage can be assigned to urban and rural <br />population. The per capita usage can be estimated for larger communities where actual <br />consumptive values and the population seIVed can be oblained directly from water <br />companies. For smaller communities (rural), the per capita usage can be extrapolated <br />from the values obtained for the larger (urban) community. If possible different data <br />sources for diversion amounts will be used to improve the methods to estimate water use <br />from municipal areas. The actual consumptive use of the different industries are assumed <br />to be available. Industrial consumptive use primarily includes two types of industrial <br />uses; mineral resources, and thermal electric power. <br /> <br />2.8.2 Develop and Implement Subroutine <br /> <br />The methodology for estimating consumptive use of municipal and industrial areas is <br />implemented in a FORTRAN subroutine. The subroutine can be called by a main <br />program to compute for the consumptive use for any number of municipal areas, <br />industrial sites (of different industrial types) in a given area for any period of time (daily, <br />biweekly, monthly, yearly, etc.). <br /> <br />The equation that is used for the municipal consumptive use is: <br /> <br />cu = np * (pcnt * cl + (1.0-pcnt) * c2) .u for all municipal areas <br /> <br />where cu = consumptive use (L3) <br /> <br />np = total population (rural and urban) in the municipal area <br /> <br />cl '" per capita usage of urban area during the time period (L3) <br /> <br />c2 '" per capita usage of rural area during the time period (L3) <br /> <br />pent = percent/1OO of the total population classified urban <br /> <br />The above equation is repeatedly used for each municipal area to obtain the total <br />consumptive use. The subroutine can also be used even when the population cannot be <br />categorized as urban and rural. Likewise, the total population for the area being <br />considered can be directly used instead of disaggregating them into different municipal <br />areas. This is particularly useful if the more detailed data are not available. <br /> <br />The equation that is used for the industrial use is: <br /> <br />cu = c no for all types of industry and for all sites of each type <br /> <br />7/13/94- Draft of Task Memorandum <br /> <br />12 <br /> <br />IDS Group, CSU <br />
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