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Show COMPACT-COMMENTS BY A. P. DAVIS A47 Arizona, California, or Nevada unless the Imperial Valley diversion be so considered. Question 2-B. How many acre-feet of water are now being used annually in the Imperial Valley? Answer 2-B. The present annual diversion of the Imperial Valley Canal is given as follows: Imperial irrigation district system: Acre-feet United States land______________________________________ 1, 597, 000 Mexican lands__________________________________________ 540, 000 Main canal waste_______________________________________ 580, 000 Losses in Alamo Channel__________________._____________ 173, 000 Total diversion_______________________________________ 2, 890, 000 Question 2-C. How many acre-feet of water will be required to irrigate all of the lands that it is feasible to bring under cultivation in the Imperial and Coachella Valleys? Answer 2-C. Net ultimate acreage in Imperial irrigation district in the United States and Coachella Valley is given in Senate Document 142, page 48, as 785,000 acres, and, using the duty of water stated in that report, the total requirement wTould be 3,400,000 acre-feet. Question 2-D. What is the estimated cost of the All-American Canal and other works for the irrigation of these lands? Answer 2-D. Senate Document 142, page 86, gives estimated total cost of the All-American Canal and other works as $49,191,000. Question 3. What are the present, the probable, and the maximum possible number of acre-feet of water that may be used for irrigation from the Colorado River system in each of the four States of the upper division? Answer 3. The following table answers the question, the quantities being in acre-feet: Use of Colorado River, upper basin Upper basin Acreage irrigated, 1920 Consumption of water New acreage Consumption of water Total acreage Total consumption of water Colorado __ ___________ 740, 000 34, 000 359, 000 367,000 1,184, 000 54, 400 574, 400 587, 200 1, 018, 000 483,000 456, 000 543,000 1, 527, 000 724, 500 684, 000 814, 500 1, 758, 000 517, 000 815, 000 910, 000 2, 711, 000 778, 900 1, 258, 400 1,401, 700 New Mexico Utah Wyoming Total 1, 500,000 2, 400, 000 2, 500, 000 3, 750, 000 4, 000, 000 6,150, 000 Of the above "new acreage" total of 2,500,000 acres, it is estimated in Senate Document 142, page 33, that a total of 1,008,000 acres will be irrigated in the upper basin in the near future. |
