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<br />OOO~91
<br />
<br />Inspection of the diversion values summarized in Table 1 indicates a relatively high
<br />diversion per irrigated acre. As such, the irrigation efficiencies are expected to be lower than the
<br />normal values. The USBR has evaluated the diversions, consumptive irrigation requirement (CIR)
<br />and the return flows and has recommended average return flow patterns for these structures.
<br />These are shown in Table 2.
<br />
<br /> TABLE 1
<br /> AVERAGE MONTHLY DIVERSION DEMANDS
<br /> MAJOR IRRIGATION RIGHTS ON THE SAN JUAN RIVER
<br /> (Values in ACFT)
<br />MONTH CITIZEN HAMMOND FRUITLAND JEWITT HOGBACK
<br />January 200 0 0 0 0
<br />February 200 0 0 0 0
<br />March 500 100 0 0 0
<br />April 3,300 700 1,600 500 6,400
<br />May 7,500 1,600 3,200 1,000 12,800
<br />June 9,500 2,000 4,000 1,300 16,600
<br />July 10,400 2,200 4,800 1,500 19,200
<br />August 8,200 1,700 3,600 1,100 14,100
<br />September 5,300 1,100 2,000 600 7,600
<br />October 2,500 500 700 300 3,900
<br />November 400 100 0 0 0
<br />December 200 ---12 ~ ~ Q..
<br />TOTALS 48,200 10,000 19,900 6,300 80,600
<br /> TABLE 2
<br />USBR RETURN FLOW PATTERNS FOR MAJOR IRRIGATION RIGHTS ON THE SAN JUAN RIVER
<br /> (Values in Acre-Feet)
<br />MONTH CITIZEN HAMMOND FRUITLAND JEWITT HOGBACK
<br />January 1,580 320 600 200 1,900
<br />February 750 150 600 200 1,900
<br />March 750 150 600 200 1,900
<br />April 1,990 410 1,000 300 3,200
<br />May 2,320 480 1,300 400 4,000
<br />June 2,320 480 1,300 400 4,000
<br />July 3,400 700 1,400 500 4,300
<br />August 3,490 710 1,600 500 4,800
<br />September 2,320 480 1,300 400 4,000
<br />October 2,320 480 1.300 400 4,000
<br />November 2,080 420 1,000 300 3,200
<br />December ~ 370 800 300 ' ZAQQ
<br />TOTALS 25,150 5,150 12,800 4,100 39,600
<br /> 26
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