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Show CALIFORNIA DEFENDANTS Exhibit No. 30 Admitted: August 17, 1956 (Page 46 from "Report on Drainage; Valley Division - Yuma Project, Arizona") Exhibit No. 9 Determination of Area Consumptive Use of Water, Valley Division, Yuma Project, Arizona Year 2 3 4J./ 5 Average Acre-foot Ground- Change in Drainage water Ground to River Elevation Difference Water (Curve) 8 10 Total Consumptive Column 5 Use and Consumptive Minus Ground Consumptive Acres Use Acre-foot Column 4 Water Use Irrigated Per Acre 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 99.542 99.358 99.322 99.639 99.517 99.230 99.773 99.806 99.387 99.229 - 0. 184 - 0.036 / 0.317 - 0. 122 - 0.287 / 0.543 / 0.033 - 0.418 - 0.159 - 2,406 - 471 /4.145 - 1,595 - 3,753 /7.100 / 431 - 5,465 - 2,079 - 19,000 - 14,250 - 20,000 - 25,250 - 24,250 - 19,500 - 18,500 - 26,250 - 31,500 16,594 13,779 24,145 23,655 20,497 26, '*»0 18,931 20,785 29,421 185,370 173,930 189,542 197,733 182,776 183,726 175,866 168,776 160,151 165,397 174,069 162,279 157,126 156,935 200,142 170,721 46,110 45,373 45,359 45,700 45,597 46,265 46,711 47,367 46,128 ___ Average 3.660 3.530 3.646 3.809 3.559 3.396 3.360 3-3?£ •J . D U 3 3.701 1/ From U.S. B.R. project field tests in 1948 - average porosity = 37%; effective porosity of valley soils assumed at 25%. Column 4 is obtained by gross acreage x effective porosity x difference in ground-water elevation in feet. Column 7 is from Column 15, Exhibit No. 6. Column 8 is Column 7 minus Column 6. |