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<br />RIO GRANDE COMPACT COMMISSION REPORT
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<br />Rio Grande below Caballa Dam, N. Mex.
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<br />Location. nWater~stage recorder, lat 32"53'05", long 107<>17'30", in NEiSWt sec. 30, T. 16 S.. R. 4 W., 600 it
<br />upstream from Bojarquez Bridge, 4, 200 ft downstream from Caballa Dam, 1.1/3 miles upstream from Percha
<br />diversion dam, and 3 miles northeast of Arrey. Datum of gage is 4, 140. 9 it above mean sea level, datum of
<br />1929, October 13, 1938 to December 31, 1945 at datum 5.0 it higher.
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<br />Drainage area. -- 30, 200 sq mi, approximarely (includes 2,940 sq mi in closed basin in San Luis Valley. Colo.).
<br />Averal!;e discharge..- 33 years (1938-70) 869 cfs (644, 100 acre-it per year).
<br />Extremes. -- 1938-70: Maximum daily discharge, 7,650 cis May 20, 1942; minimum daily, 0.1 cis Oct. 31 to
<br />Nov. 14, 1954, Nov. 7 to Dec. 31, 1955.
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<br />Remarks. -- Records good, Considerable diversion above station Cor irrigation. Flow regulated by Caballo and
<br />Elephant Butte Reservoirs.
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<br /> Monthly and yearly dischare:e in cubic feet Der second
<br />Month Second- Maximum Minimum Mean Runoff in
<br />foot-days dally dally Acre-feet
<br />January 43.6 1.5 1.3 1. 41 86
<br />February 5,083. 5 968 1.1 182 10,080
<br />March 56,203 2,340 426 1,813 111,500
<br />April 35,779 1,840 890 1,193 70, 970
<br />May 39,902 1,660 985 1,287 79,150
<br />June 50, 120 2,200 1,060 1,671 99,410
<br />July 63,210 2,630 1,200 2,039 125, 400
<br />August 58, 300 2,690 1,020 1,881 115, 600
<br />September 24,593.9 1,680 2,8 820 48,780
<br />October 59.2 2.8 1.3 1. 91 117
<br />November 40.0 2.2 1.1 1. 33 79
<br />December 31.7 1.2 1.0 1.02 53
<br />Calendar year 1970 333, 365. 9 2,690 1.0 913 661,200
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<br />Bonito ditch below Cabana Dam, N. Mex.
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<br />Records available. --January 1938 to December 1970. Published as supplementary data with Rio Grande below
<br />Caballa Dam in U. S. G. S. Water-Supply Papers beginning with October 1947.
<br />
<br />Remarks. __ Ditch diverts directly from Caballo Reservoir for irrigation of lands on right bank of river. The total
<br />release from Project storage, as used in computations of Compact Commission, is the combined flow of this
<br />ditch and Rio Grande below Caballo Dam.
<br />
<br />Monthly and yearly discharge, in cubic feet per second
<br />
<br />Montb Second- Maximum Minimum Mean Runoff in
<br /> foot-days daily daily Acre-feet
<br />January 0 0 0 0 0
<br />February 0 0 0 0 0
<br />March 121. 2 12 0 3.91 240
<br />April 41. 6 36 0 1. 39 82
<br />May 24.6 10 0 .79 49
<br />June 60.0 10 0 2.00 119
<br />July 89,5 10 0 2.89 178
<br />August 72,2 10 0 2.33 143
<br />September 73,4 10 0 2.45 146
<br />October 0 0 0 0 0
<br />November 0 0 0 0 0
<br />December 0 0 0 0 0
<br />Calendar year 1970 492.5 36 0 1. 32 957
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