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WSP05142
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Last modified
1/26/2010 2:17:09 PM
Creation date
10/12/2006 12:53:01 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8220.101.17
Description
Glen Canyon Dam/Lake Powell
State
AZ
Basin
Colorado Mainstem
Date
8/20/1972
Title
Draft of Reply to Paper by Dr. James R. Guadagno
Water Supply Pro - Doc Type
Report/Study
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<br />.. <br /> <br />/~~., <br /> <br />as set forth by the plaintiffs in the lawsuIt whom Dr. Guadagno supports, the <br /> <br />limit of consumptive use of water avaIlable to the Upper Basin States would be <br /> <br />reduced from 5.8 million to 4.7 million acre-feet per year--a reduction of 1.1 <br /> <br />million acre-feet annually (not deducting Mexican Treaty water). <br /> <br />The vagaries of a water-deficient river have already reduced the water <br /> <br />available to Colorado, New Mexico, Utah, and Wyoming by 20% under that <br /> <br />anticipated when the Colorado RIver Compact was negotiated. Another reductIon <br /> <br />such as that which would result from the doctor's number one recommendatIon <br /> <br />would be nothing ~hort of catostrophic. The Upper Division States, with Lake <br /> <br />Powell operated below elevation 3600 feet, would lose almost one-fifth of the <br /> <br />water that would be available to them with Lake Powell operated to its con- <br /> <br />structed water level of 3700 feet. The total result, including reductions due <br /> <br />to the vagaries of nature, would leave the States with no alternative but to <br /> <br />reduce the limit of their plans for ultimate consumptive use of Colorado River <br /> <br />water 37 1/2% below the amounts apportioned by the compacts. <br /> <br />Colorado would be in the untenable position of beIng forced to decide <br /> <br />which types of planned water de:velopments--municipal. industrial, agricultural. <br /> <br />recreational--she would forego. Colorado would face shortages exceedIng half <br /> <br />million acre-feet in uses of water already defined or In various stages of plannIng. <br /> <br />A limitatIon of 3600 feet on Lake Powell would signIficantly advance the date when <br /> <br />the development of new water resources In Colorado would have to be terminated. <br /> <br />At the lower elevation, New Mexico would be irreparably injured by a <br /> <br />shortage of 25% in water supply for the already operating San Juan-Chama Project, <br /> <br />the under-construction Navajo IndIan Irrigation Project. and industrial users which <br /> <br />6 <br />
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