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WSP00793
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Last modified
1/26/2010 12:27:49 PM
Creation date
10/11/2006 9:57:25 PM
Metadata
Fields
Template:
Water Supply Protection
File Number
8200.750
Description
San Juan River General
State
CO
Basin
San Juan/Dolores
Water Division
7
Date
3/29/1972
Author
Unknown
Title
Water Supply and Depletions of the San Juan River in Colorado - Final Draft - Incomplete
Water Supply Pro - Doc Type
Report/Study
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<br />008123 <br /> <br />- 9 - <br /> <br />It is estimated that about 9,400 acres are under irrigation and <br />that the resulting depletion at sites of use averages 7,600 acre <br />feet per year. The Treasure Ditch diverts an average of 100 <br />acre feet annually. Domestic uses are estimated to be about <br />400 acre feet per year. <br />2. Piedra River above Arboles. Colorado. <br />The crop pattern is typical of high altitude irrigated lands <br />and consists mostly of hay, pasture, and alfalfa with some small <br />grains. The short growing season at higher elevations precludes <br />the raising of cash crops. The precipitation of about 10 inches <br />during the growing season is apparently sufficient to allow dry <br />land farming but most of the ranchers seem to prefer to utilize <br />their land for grazing. During years of normal water supply, <br />except for some late season shortages, there is ample water for <br />all presently irrigated areas. Present irrigated acreage is es- <br />timated to be 4,200 acres and the resulting depletion averages <br />about 5,200 acre feet per year. The Squaw Pass and Piedra Pass <br />Ditches divert about 200 acre feet per year to tributaries of <br />the Rio Grande. <br />3. Los Pinos River above La Boca. Colorado. (State Line). <br />The irrigated acreage in this watershed is almost all in the <br />Pine River Irrigation District or under the jurisdiction of the <br />Bureau of Indian Affairs. A survey by the Bureau of Reclamation <br />in 1942 indicated that 6,840 acres of Indian land, 24,870 acres <br />in the District, and 500 acres outside the District were then <br />being irrigated in Colorado. These lands receive a regulated <br /> <br />1. <br />
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