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Last modified
1/26/2010 12:13:14 PM
Creation date
10/11/2006 9:35:28 PM
Metadata
Fields
Template:
Water Supply Protection
File Number
8460.500
Description
Platte River Recovery Plan
Basin
South Platte
Date
5/30/2000
Author
CWCB
Title
Draft Water Action Plan
Water Supply Pro - Doc Type
Publication
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<br />The following table shows the average monthly reductions in consumptive use for the <br />1975-94 period. <br /> <br />Table 111-10 <br /> <br />C <br /> <br />C <br /> <br />onservahon roppinl! - Reductions in Consumptive Use (ae.ft) <br />Month Reach 16 Reach 17 Reach 18 Reach 19 <br />October 0 0 0 0 <br />November 0 0 0 0 <br />December 0 0 0 0 <br />January 0 0 0 0 <br />February 0 0 0 0 <br />March 0 0 0 0 <br />April 6 10 8 5 <br />May 12 25 20 11 <br />June 133 277 351 426 <br />July 326 801 1052 1221 <br />August 300 646 852 1052 <br />SePtember 23 45 48 43 <br />Annual 799 1804 2330 2758 <br /> <br />Based on the water budget spreadsheet, a reduction in consumptive use of 7,700 ac-ft <br />resulted in a yield of 7,000 ac-ft of shortage reductions at the critical habitat without <br />diversion losses. In this case, it is important to note that flows in the critical habitat will <br />only be increased by reductions in consumptive use. Therefore, the reduction in <br />diversions is considerably higher to account for historic return flows. The modeling <br />being performed by the EIS team may indicate that the yield associated with 7,700 ac-ft <br />of consumptive use savings is higher or lower than 7,000 ac-ft of reductions to target <br />flow shortages. If the EIS modeling indicates a yield that differs from 7,000 ac-ft at the <br />critical habitat, the size of the water management program may require adjustment. This <br />applies to all water management options evaluated. <br /> <br />Option 2: Deficit Irrigation Practices <br /> <br />A deficit irrigation program would focus on reducing water use in irrigated corn <br />production. The representative deficit irrigation program would reduce irrigation on corn <br />acres by six inches per year. The distribution of land involved in deficit irrigation in each <br />reach was based on the distribution of acres irrigated with surface supplies. The number <br />of acres that were assumed to be included in a deficit irrigation program are summarized <br />in the following table. <br /> <br />Table 111-11 <br />D fi 't I . f P <br /> <br /> e lei rrll!a Ion rOl!ram <br /> Acres Included in <br /> Reach Program (ac) <br /> 16 2,000 <br /> 17 4,300 <br /> 18 5,500 <br />. 19 4,700 <br /> Total 16,500 <br /> <br />C:\Druft: Wilier Action P1Wl (Mny 30, 2(00)\wopc repon (Version 6 BND2)-.doo <br /> <br />27 <br />
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