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<br />l\) <br />0') <br />tv <br />00 <br /> <br />Table 13 <br /> <br />S~~RY OF DIRECT AND INDIRECT SALINITY I~WACTS <br />ON AGRICULTURAL USERS BY AREA <br /> <br />Atea <br /> <br />Salini ty, <br />effects <br />per a,cre <br /> <br />Cost 1/ <br />mg/l- <br />per acre <br /> <br />, <br />Southern California <br /> <br />Imperial Co~nty <br />Coache 11 a Yr' 11 eY Y <br />~VD (San D ego) 3/ <br />Palo Yerde - <br /> <br />$16 <br />59 <br />65 <br />16 <br /> <br />$0.050 <br />0.184 <br />0.203 <br />0.050 <br /> <br />Lower 'lain Stfm <br /> <br />Colorado Riter Indian <br />Reservati9n <br />Remainder Yprna-County <br /> <br />Gila Area <br /> <br />11 <br />23 <br /> <br />0.034 <br />0.072 <br /> <br />Salt River ~roject <br />(CAP area~ Y. <br />Gila Project <br />, <br /> <br />9 <br />21 <br /> <br />0.02'8 <br />0.066 <br /> <br />TOTAL <br /> <br />Indirect effe~ts - 0.62 x 66,900 <br /> <br />TOTAL <br /> <br />t <br />!I Cost per mg/l per acre was based <br />to change in ,alinity concentration <br /> <br />Present <br />modified <br />acres <br /> <br />Total <br />salinity effel1t <br />cost per mg/l/Year <br /> <br /> <br />on Sun's 1972 study which predicted a crop resp~nse <br /> <br />of 320 mg/l. $16 <br />320 mg/l = $0.05 mg/l/acre. <br /> <br />from wells. The 40,800 acres represent <br /> <br />526,000 <br />40,800 <br />32,500 <br />103,800 <br /> <br />$ 26,300 <br />7,500 <br />6,600 <br />5,200 <br /> <br />j <br />2/ Twenty pertent of the irrigation water comes <br />80 percent of!present modified acres. <br />3/ Representslon1y that portion of agricultural lands which will not receive a hlenQed <br />water supply.l ' <br />4/ Based on f\111 service ground-water exchange acre equivalent of the CAP area that, <br />De served wit~ Colorado River water. (5.72 acre-feet per acre at canal side). <br /> <br />29 <br /> <br />72 ,000 <br />146,000 <br /> <br />2,500 <br />10,500 <br /> <br />50,700 <br />105,000 <br /> <br />1,400 <br />6,900 <br /> <br />$ 66,900 <br /> <br />1,076,800 <br /> <br />41,500 <br /> <br />$108,400 <br /> <br />,-.;'.- ,,>-'-- <br /> <br />,J; - .___.",' ';, <br />