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WSP07499
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Last modified
1/26/2010 2:27:36 PM
Creation date
10/12/2006 2:25:49 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8149.911
Description
Miscellaneous Small Projects and Project Studies - SE Needs Assessment/PSOP
State
CO
Basin
Arkansas
Water Division
2
Date
10/6/1998
Author
URS Greiner-Woodward
Title
Lake Meredith Reservoir Enlargement Study - Study Overview
Water Supply Pro - Doc Type
Project Overview
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<br />.' - <br /> <br />- .",.," \ <br />t.. .) " <br /> <br />EXECUTIVE SUMMARY <br /> <br />A. Introduction <br />Colorado Springs Utilities (CSU) has developed a Water Resources Plan to provide a safe <br />and reliable water supply to its community through the year 2040. This plan sets forth the <br />projects necessary to serve the future water demands of a projected population of <br />961,000, The Water Resources Plan also identifies the need for additional water storage <br />projects that are necessary to provide a reliable water supply through periods of drought. <br />This Operation and Yield Model uses integrated system optimization and simulation <br />approaches to perform the following tasks: <br />. determine CSU' s future water storage requirement <br />. size and schedule water resource plan project components <br />. project the effective firm yield of the CSU water supply system through 2040 <br />. identify the local water use and supply strategy <br /> <br />The sources of supply include CSU's Local. Arkansas River, and Transmountain <br />Systems. The senior water rights of other entities and the operation of the winter water <br />storage program are protected from injury through the terms and conditions applied to the <br />operation of the CSU water rights modeled in this study. Simulations of storage <br />fluctuations are performed utilizing monthly time steps, Operations of diversions and <br />exchanges are simulated on a daily basis, The historical hydrologic period of 1966 to <br />1995 is utilized for calculating the exchange potential and for the overall simulation <br />process, This historical hydrology is superimposed over future demands through 2040 to <br />simulate the response of the system for the entire planning horizon. <br /> <br />This report provides a range of planning strategies to help CSU maintain a safe and <br />reliable supply of water for its community, To further extend the value of the current <br />work, the simulation model utilized in the study is embodied in a decision support system <br />allowing it to be used for future planning studies. <br /> <br />B. Methodology <br /> <br />The methodology involved in modeling CSU's raw water supply system consists of data <br />preparation, model construction, and system simulation. Data sets include both water <br />availability and CSU demand projections, The model consists of a decision support <br />system using both a generalized network flow model (MODSIM) and a water rights/river <br />exchange accounting model (ArkEx), This decision support system is utilized to <br />determine storage requirements, to evaluate the planning alternatives, and to calculate the <br />firm yield levels for the current condition and for various improvement projects. <br /> <br />(D> <br /> <br />ES-l <br /> <br />CSU Operations and Yield Model <br />
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