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Last modified
1/26/2010 12:33:18 PM
Creation date
10/11/2006 10:43:41 PM
Metadata
Fields
Template:
Water Supply Protection
File Number
8220.106
Description
Animas-La Plata
State
CO
Basin
San Juan/Dolores
Water Division
7
Date
1/1/1990
Title
Animas-La Plata Project
Water Supply Pro - Doc Type
Project Overview
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<br />., ,~.;- ~......~. j _ ___ ::. N <br /> <br />e <br /> <br />; . ~.;, . .; .....,. < , '. <br /> <br />The greatest impacts to the Animas River occur in months other than <br />the peak spring runoff. By diverting the stream flow in excess of <br />125 cfs in the offpeak months, monthly flow reductions between 30 <br />and 60 percent occur in a wet year such as 1973, between 10 and 40 <br />percent in a normal year such as 1966, and between 0 and 30 p~rcent <br />in a dry year such as 1977. During the spring peak the greatest <br />reductions occur in a dry year with very little reduction occurring <br />in a wet year. <br /> <br />Aztec and Farmington would divert project M&I water from the Animas <br />River in New Mexico. When project water was not released from <br />Ridges Basin Reservoir but supplied directly from the river to M&I <br />users in New Mexico, which would be about 96 percent of the time, <br />the river flow would be decreased below the diversion point for <br />each M&I system. When water was released from the reservoir, the <br />flow of the river would be increased from the Durango Pumping Plant <br />to the first M&I diversion point. Under project conditions the <br />flow below the first diversion would either be increased or <br />decreased, depending on the amount of the release, the M&I demand, <br />and the reach of river. The historic monthly flows at Farmington <br />are listed in Tables 1 and 5. The flow of the Animas River at <br />Farmington with and without the project is shown in the following <br />table and Figures 7 through 9: <br /> <br />. Representative monthly flow with and without the project-- <br /> Animas River at Farmington <br /> (Unit-cfs) <br /> Wet Year (1973) Normal Year (1966) Drv Year (1977) <br /> without with Without with without with <br /> Project Project Project Project Project Project <br />January 433 212 385 199 214 173 <br />February 419 220 332 165 190 162 <br />March 826 571 720 495 112 92 <br />April 1,581 1,351 973 656 54 20 <br />May 4,499 4,381 2,325 2,065 195 66 <br />June 5,052 4,601 1,717 1,234 533 221 <br />July 2,639 2,138 498 152 187 102 <br />August 673 232 218 92 381 154 <br />September 553 287 155 96 182 78 <br />October 292 109 189 73 174 73 <br />November 257 156 189 90 241 160 <br />December 270 181 333 228 217 149 <br /> <br />'. <br /> <br />As in the Animas River at Durango comparison, monthly flow <br />reductions of between 10 and 60 percent occur in months other than <br />spring runoff months, with lesser impacts occurring during spring <br />months. <br /> <br />6 <br />
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