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PERMFILE66300
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PERMFILE66300
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Last modified
8/24/2016 11:12:10 PM
Creation date
11/20/2007 9:16:45 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981008A
IBM Index Class Name
Permit File
Doc Date
12/11/2001
Section_Exhibit Name
NH1 TAB 16 ATTACHMENT 16-1 WATER RIGHTS ISSUES AND AUGMENTATION PLAN FOR THE NUCLA MINE
Media Type
D
Archive
Yes
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The 273.3 acre-test of water diverted through the <br />• ~ Highline Canal was historically used to irrigate seventy-tour <br />(74) acres of pasture grass and alfalfa on the tract of land <br />identified in Figure 3 as 262-007. Using the modified <br />Blaney-Crfddle Method (Reference 2) and temperature (Table 4) <br />and precipitation (Table 5) data for Nucla as derived from <br />the Norwood and Uravan weather stations (Figure 1), the <br />average annual consumptive use of irrigation water <br />historically used on the 74 acres was calculated to be 114.5 <br />acre-feet for the period 1970-1986 (Table 9). The temp- <br />erature and precipitation values used in the calculations <br />were the averages of data from the two stations. The <br />modified Blaney-Griddle method is the standard accepted <br />method used to calculate consumptive-use requirements for <br />.. crops in Colorado. <br />PCC therefore has a consumptive-use credit of 114.5 <br />acre-feet of water previously used for irrigation to use as <br />a water supply for the mining operation and in the <br />augmentation plan. The existing rights will however have to <br />be changed to include industrial use and storage. Storage <br />rights associated with the six ponds will also be used as a <br />water-supply source during the non-irrigation season, as no <br />consumptive-use credit is available during the months of <br />November through March. <br />:~ <br />22 <br />GEOTRANS. INC. <br />
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