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<br />o n 3 J ']'7 <br /> <br />THE DEGREE TO WHICH THAT PURPOSE HAS BE~N FULFillED CAN BE DEMONSTRATED BY A <br /> <br />COMPARISON OF WATER SU~PLY USES THEN AND NOW. AVERAGE WATER SUPPLY AND USE DATA FOR <br /> <br />. <br /> <br />THE r(N-YEAR PERIOD PRtCE(DING DtSTRICT FORMATION (1928-1937) AND FOR THE TEN-YEAR <br /> <br />PERIOD JUST PAST (1958-1967) IS SUMMARIZED BELOW FOR COMPARISON: <br /> <br />STREAM INFLOW TO DISTRICT AREA <br />NCWCD WATER DELIVERIES <br /> <br />TOTAL PRIMARY WATE~ SUPPLY <br /> <br />DIRECT STREAM OlVERSIONS <br />STORAGE DIVERSIONS <br />NCWCD DEL I VER I ES <br />PUMPED FROM W~LLS (*) <br />TOTAL WATER USED I~ DISTRICT <br /> <br />.. <br /> <br />~ <br /> <br />STREAM OUTFLOW TO NEBRASKA <br />TOTAL DIVERSIONS INCL. OUTFLOW <br />RETURN FLOW (= TOTAL DIVERSIONS <br />LESS PRIMARY SUPPLY) <br />RETURN FLOW RE-USEO WITHIN DISTRICT <br />(= TOTAL RETURN FLOW LESS OUTFLOW) <br />CONSUMPTIVE USE (= PRIMARY SUPPLY <br />LESS OUTFLOW) <br /> <br />HARVESTED, IRRIGATED ACRES <br />TOTAL USE PER IRRIGATED ACRE -- A.F. <br />CONSUMPTIVE USE PER IRRIGATED ACRE -- A.F. <br />GROSS CROP VALUE PER IRRIGATED ACRE <br />CROP VALUE PER A.f. USED <br />CROP VALUE PER A.f. OF PRIMARY SUPPLY <br />CROP VALUE PER A.f. CONSUMED <br /> <br />1928-1937 <br />AVG.-A.F. <br /> <br />736.808 <br />o <br />736.808 <br /> <br />1.193.737 <br />340.450 <br />o <br />85.200 <br />1,619.387 <br /> <br />196.000 <br />1.815.387 <br /> <br />1 .078.579 <br /> <br />882.579 <br /> <br />540.808 <br /> <br />615.000 <br />2.63 <br />.88 <br />$36.00 <br />$13.69 <br />$30.05 <br />$40.91 <br /> <br />1958-1967 <br />AVG.-A.F. <br /> <br />764.736 <br />236.393 <br />1.001.129 <br /> <br />928.149 <br />344.045 <br />236.393 <br />980.000 <br />2.488.587 <br /> <br />341.150 <br />2.829.737 <br /> <br />1.828.608 <br /> <br />1,487.458 <br /> <br />659.979 <br /> <br />685,000 <br />3.63 <br />.96 <br />$139.00 <br />$ 38.29 <br />$ 95.11 <br />$144.79 <br /> <br />(*) THE NUMBER OF IRRIGATION WELLS WITHIN THE. DISTRICT INCREASED <br />FROM 568 IN 1938 TO MORE THAN 5,000 IN 1967. Cu RRENT EST I MAT ES <br />Or THE QUA~TITY OF WATER BEING PUMPED ANNUALLY FROM UNDER-GROUND <br />AQUIFERS IN THE SOUTH PLATTE VALLEY ARE AS HIGH AS 1.5 MILLION <br />ACRE-FEET. THE QUANTITY USED HERE AS AN AVERAGE FOR THE 1958- <br />1967 PERIOD IS CONSIDERED CONSERVATIVE. <br /> <br />, <br /> <br />-4- <br /> <br />CHANGE <br /> <br />+ <br />+ <br />+ <br /> <br />27.928 <br />236.393 <br />264.321 <br /> <br />+ <br />+ <br />+ <br />+ <br /> <br />265.588 <br />3.595 <br />236.393 <br />894.800 <br />869.200 <br /> <br />+ 145.150 <br />+ 1.014.350 <br /> <br />+ 750.029 <br /> <br />+ 604.879 <br /> <br />+ 119.171 <br /> <br />+ <br />+ <br />+ <br />+ <br />+ <br />+ <br />+ <br /> <br />70.000 <br />1.00 <br />.08 <br />$103.00 <br />$ 24. 60 <br />$ 65.06 <br />$103.88 <br />