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Last modified
1/26/2010 12:31:35 PM
Creation date
10/11/2006 10:31:43 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
7/1/1987
Author
EPI
Title
An Analysis of the Animas-La Plata Project - Durango-Colorado - July 1987
Water Supply Pro - Doc Type
Report/Study
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<br />and 7,000 feet above sea level. <br /> <br />Since most of the farming in the project area is done at <br />high altitudes, the frost-free growing season averages only <br />120 days (138 days at La Plata to 99 days at Hesperus). <br />The growing season generally extends from May 9 to October <br />13. Temperature and frost conditions limit crop production <br />to hardy field crops such as alfalfa, small grain, and a <br />variety of garden vegetables. <br /> <br />Mechanics of Irrigation <br /> <br />Agriculture is the primary economic pursuit in the Colorado <br />portion of the project area and is also important in the <br />New Mexico portion. The water will be used for: alfalfa, <br />small grains and pasture to support beef, sheep and dairy <br />enterprises. Pinto Beans and grain corn would be grown as <br />the cash crops to help pay for the water. <br /> <br />According to project documents most of the irrigation water <br />would be pumped from the Animas River to the Ridges Basin <br />Reservoir. The dam and reservoir are located approximately <br />2 miles southwest of Durango. Most of the water for land ~n <br />Colorado would be pumped from Ridges Basin Reservoir by the <br />Ridges Basin Pumping Plant and conveyed through the Dry Side <br />Canal, except that land too high to be served from the canal <br />would receive water diverted directly from the La Plata <br />River. Water for land in New Mexico would be stored in <br />Southern ute Reservoir and released to the New Mexico <br />Irrigation Canal. <br /> <br />According to project documents and based on a 49-year study <br />period of simulated operations, the total project water <br />supply would average 198,200 acre-feet annually. The supply <br />would include: <br /> <br />; <br />~. <br /> <br />\~ <br />C! <br /> <br />,i <br /> <br />;':1 <br />, <br /> <br />,. <br />,.-1 <br /> <br />e. <br />.. <br />,.- <br />I" <br />[' <br /> <br />, <br />f~: I <br /> <br />1. 38,400 acre-feet for municipal and industrial use <br />and 16,800 acre-feet for irrigation in New Mexico <br /> <br />2. .101,300 acre-feet for irrigation and 41,700 <br />acre-feet for municipal and industrial use in <br />Colorado <br /> <br />;<'. <br />b;; <br />!..~ <br />~I <br /> <br />>f:: <br />?f <br />.,~ <br /> <br />. ~ ' <br /> <br />Of the total project water supply, 169,400 acre-feet would <br />be developed from the Animas River, 17,000 acre-feet would <br />be developed from the La Plata River and 11,800 acre-feet <br />would be supplied by the reuse of project return flows <br />to the La Plata River. The 49-year average annual flow in <br />the Animas River at Durango is 546,400 acre-feet. The <br />operational study for the project modified this flow <br />figure down to 542,300 acre-feet to allow for additional <br />development of the city of Durango's water right. <br /> <br />7 <br />
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