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Last modified
1/26/2010 12:53:05 PM
Creation date
10/12/2006 12:03:55 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8443
Description
Narrows Unit
State
CO
Basin
South Platte
Water Division
1
Date
12/19/1977
Title
Ground-Water Recharge Alternative Concept of Artificial Recharge
Water Supply Pro - Doc Type
Report/Study
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<br />(47(1' <br /> <br />and the quantity of water supplied by recharge to meet the requirements. <br />With the proposed recharge system, shortages would occur in 5 of the <br />28 years studied. The annual farm delivery requirement which was <br />anticipated to be satisfied by recharge was found to average 42,600 <br />acre-feet and to range from 4,800 acre-feet in 1956, to 109,100 acre- <br />feet in 1972. <br /> <br />Effects of the recharge and pumping oper~1I~1I\s on the flows of the <br />\,\"\ '~ <br />South Platte River will consist 3f.:a5'om~'i,~asiOn of stream accretions <br />", '\, '\> <br />and depletions. The reason ~hft depletbD~s occur is that pumpage, on <br />(". , . '. 'vi' <br />'\ .' .'.- <br />the average, occurs closer: to t~e~~ver than where the recharge occurs <br />C \'.~, \~. :/"~ <br />and there is a ti~hg ,foJ;;tI(e recharge effects to offset the pumping <br />V! ,\\~V <br />effects. The dePle~n~ will be minimal, and it is estimated that <br /> <br />about 6 years of operation will be needed for the effects of recharge <br /> <br />to completely offset the pumping effects on the river. At this time, <br /> <br />approximately a total of 5,000 acre-feet of the drain-out water will <br /> <br />be available for rediversion in the months of July, August, and <br />September. Assuming conveyance losses of 38 percent in the existing <br />distribution system, 3,100 acre-feet are usable on the farm. This <br />results in an average annual supply at the farm head gates of 45,700 acre- <br /> <br />feet. <br />
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