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THE JOURNAL OF ECONOMIC SCIENCES: THEORY AND PRACTICE
Table 4. Variable pumping costs using natural gas as fuel to pump water
from the Ogallala aquifer at four levels of pumping lifts for six irrigation
systems, Region A.
System/Lift 250’ 350’ 450’ 550’
Dollars/acre-inch
CF 9.96 12.05 12.95 14.23
SF 9.79 11.88 12.78 14.06
MESA 10.91 12.80 13.86 14.86
LESA 10.06 12.11 12.98 14.25
LEPA 10.02 12.07 12.94 14.21
DRIP 10.01 12.06 12.93 14.20
Table 5. Fuel costs in dollars for effective water applied equivalent to
one acre-inch under LESA at alternative gas prices for six irrigation
systems at 350’ pumping lift.
Gas Prices ($/MCF) 7.00 8.00 9.00 10.00 11.00 12.00
Irrigation Equivalent to
System one ac-in of Dollars
LESA
CF 1.47 10.37 11.85 13.33 14.81 16.29 17.77
SF 1.17 8.25 9.43 10.61 11.79 12.96 14.14
MESA 1.13 8.71 9.95 11.20 12.44 13.68 14.93
LESA 1.00 7.27 8.31 9.35 10.39 11.42 12.46
LEPA 0.93 6.76 7.73 8.69 9.66 10.62 11.59
DRIP 0.91 6.62 7.56 8.51 9.45 10.40 11.34
Table 6. Fuel costs in dollars for effective water applied equivalent to
one acre-inch under LESA at alternative pumping lift levels for six
irrigation systems.
Pumping Lift 250' 350' 450' 550'
Irrigation Eq. to ac-in of
System LESA Dollars
CF 1.47 8.43 10.37 11.20 12.38
SF 1.17 6.71 8.25 8.91 9.86
MESA 1.13 7.30 8.71 9.24 10.10
LESA 1.00 5.98 7.27 7.80 8.59
LEPA 0.93 5.56 6.76 7.26 7.99
DRIP 0.91 5.44 6.62 7.10 7.82
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