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Last modified
1/26/2010 12:28:41 PM
Creation date
10/11/2006 10:04:33 PM
Metadata
Fields
Template:
Water Supply Protection
File Number
8271.300
Description
Colorado River Basin Salinity Control Program - General Information and Publications-Reports
Basin
Colorado Mainstem
Water Division
5
Date
6/1/1982
Title
Optimizing Salinity Control Strategies for the Upper Colorado River Basin
Water Supply Pro - Doc Type
Report/Study
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<br /> <br />& <br /> <br />. <br /> <br />* . <br /> <br />." ~~','" ~..?:. <br /> <br />,'..-, <br /> <br />~ <br />I- <br />00 <br />l\:I <br /> <br />t~eating one type of existing use, such as irrigated agriculture, to offset <br />tne salinity attributable to new water developments. <br /> <br />There is by no means an absolute certainty in any planning effort. Data <br />must be collected and evaluated duting the course of time in order to update <br />and refine earlier conclusions. While this work is nO exception, and the <br />strategies developed may be easily modified as new information becomes avail- <br />able or political attitudes altar the importance of salinity, the results <br />illustrate an important and necessary first step. Sensitivity analyses have <br />been used to identify important areas needing special studies and particular <br />data requirements which would most effectively assist accurate determination <br />of future programs and policies. <br /> <br />The scope of this work, in a mathematical sens.e, is also limited by the <br />choice of optimization criteria. Minimum capital, operation, and maintenanc.e <br />. 'costs expressed as an equivalent annual cost are used to systematically <br />campare salinity control alternatives. Whilerecognidngthe much broader <br />economic concepts that operate in the real systems this more restricted indi- <br />ca,or is believed to be defensible. Most funding for salinity control p=oj- <br />ects, as currently authorized, is expected to come from federal sources <br />because the real economic system is unable to return economic detriments to <br />the salinity sources es a meens of self-regulation. In addition, legislative <br />action has already set constraints, on allowable Lower Basin salinity levels, <br />so the planning problem is not to solve the problem in an economically optimum <br />fashion, but to meet the standard. Thus, minimiZing costs is consistent with <br />the problem structure. '. <br /> <br />PREVIOUS I~~ESTIGATIONS <br /> <br />Salinity of the Colorado River and its tributaries has been the subject <br />of many studies and investigations. Various socio-economic, engineering, <br />environmental and other aspects of the salinity problem and potential control <br />measu=es have been pursued by the U. S. Department of the Interior; \;ater and <br />Power Resources (formerly the Bureau of Reclamat.ion).; the U.S. Geological <br />Survey; the U.S. Environmental Protection Agency and its predecessor agencies; <br />the Watar Resources Council, Colorado River Board of Ca1if.ornia; U.S. Depart- <br />ment of Agriculture, Soil Conservation Service, and Science and Education <br />Administration (Agricultural Research); state and local gov~rnmental entities; <br />and several universities and consulting engineering firms. <br /> <br />In 1975 Utah State University prepared a comprehensive regional assess- <br />ment report for the National Commission on Water Quality on the Impacts of <br />PL 92-500 (Federal Water Pollution Control Act and amendments of 1972) on the <br />salinity problem of the Colorado River (Utah State University, 1975). How- <br />ever, the majority of the conclusions were extrapolated from results of <br />studies on the Graen River drainage in Utah. Riley and Jurinak (1979) ex- <br />tended this work and suggest approximate salt loading ratas from the various <br />areas in the Upper Basin. A good summery of past an" pres~nt research and <br />other salinity control programs of the Water and Power Resources Service is <br />contained in the most recent biannual report, Progress Report No.9, Quality <br />of Water, Colorado River Basin (USDI. BR, 1979a). <br /> <br />5 <br /> <br />.. ~ "~.. ~, <br /> <br />,': <br />
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