|
<br />31
<br />
<br />.'
<br />
<br />Estimated historical aroundwater pumped
<br />and total supply at furm headqate
<br />
<br />The following table shows the ayerage monthly and annual amount of
<br />groundwater pumped during the 15-year period.
<br />
<br /> Apr May Jun Ju1 Aug Sep Oct Year
<br />Max. 0 1,600 2,500 5,000 6,600 4,600 2,500 22,800
<br />Min. 0 500 800 1,600 2,100 1,400 800 7,200
<br />Ave. 0 947 1,460 2,953 3,887 2,687 1,460 13,390
<br /> The amount pumped e~ch year compared with the total water supply at the
<br />farm headgate is as follows:
<br />
<br />.'
<br />
<br /> Tot.a1 from Can~ls Total
<br /> and Pumps ~t acre-feet Groundwater Percent of Total
<br />Year F~rm Headaate l2er acre Pumped Supply Pumped
<br /> (acre-feet) (acre-feet)
<br />1947 29,300 4.73 7,200 24.6
<br />1948 27,200 4.39 8,500 31.2
<br />1949 28,500 4.60 11,300 39.6
<br />1950 26,100 4.21 11 , 800 45.2
<br />1951 24,400 3.94 9,900 40.6
<br />1%2 29 , 100 4.70 12,300 42.3
<br />1953 32,400 5.23 13,900 42.9
<br />1954 33,900 5.47 22,800 67.2
<br />1955 30,500 ".92 19,700 64.6
<br />1956 35,200 5.86 21,300 65.5
<br />1957 26,600 4.29 9,500 35.7
<br />1958 26,000 4.20 12,600 48.5
<br />1959 25,500 4.12 13,800 54.1
<br />1960 31,800 5.13 16,200 50.9
<br />1961 19,400 3.13 10,100 52.1
<br />Average 28,390 4.58 13,390 47.2
<br />
<br />...
<br />
<br />Estimated irriaation reauirements
<br />
<br />The following t~ble shows the estimated irrigation requirements at the
<br />farm headgate and at the canal headgate after canal losses are added.
<br />
<br />The irrigation requirements were estimated by the Bureau of Reclamation
<br />by computing the consumptive use of the crops and applying an irrigation
<br />efficiency of 60 percent for each canal.
<br />
<br />"
<br />
<br />.'
<br />
|