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<br />RIO GRANDE COMPACT COMMISSION REPORT
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<br />Rio Grande below Elephant Bulle Dam, N. Mex.
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<br />Location.-Water-stage recorder, lat 33008'54", long 10T'12'22", in SW1/4 sec. 25, T. 13 5., R. 4 W., (projected) in Pedro Armendariz
<br />Grant, 1.0 mile downstream from dam and 1.5 mUes upstream from Cuchillo Negro River. Datum of gage is 4,242.09 ft above mean
<br />sea level, datum of 1929. Prior to April 23, 1942, at several different sites and datums.
<br />Draina2e area.n29,450 sq mi, approximately (includes 2,940 sq mi in closed basin in San Luis Valley, Colo.).
<br />Avera<<e dischare:e.-82 years (1915-96, 1,007 ftJ /s (729,600 acre-ft per year).
<br />Extremes.-1915-96: Maximum daily discharge, 8,220 ft3/s May 22, 1942; no flow at limes prior to 1929 and March 2-4, 1979.
<br />Remarks.-Records goqd. Flow regulated by Elephant Butte Reservoir. Diversions for irrigation of about 800,000 acres above station.
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<br /> Monthly and yearly discharge, in cubic feel per second
<br /> Second, Maximum Minimum Runoff in
<br />Month foot-days daily daily Mean acre-feet
<br />January 33,810 1,400 62 1,091 67,06ll
<br />February 32,304 1,310 898 1,114 64,070
<br />March 41,16ll 1,54ll 1.030 1,328 81,640
<br />April 30,669 1,100 958 1.022 6ll,83O
<br />May 4{),I6ll I,BOO 977 1,295 79,660
<br />June 54,020 1,900 1,700 1,801 107,100
<br />July 53,400 1,980 1,470 1,723 105,900
<br />August 28,889 1,470 604 932 57,300
<br />September 10,529 682 23 351 20,880
<br />October 713 46 11 23,0 1.410
<br />November 362 13 12 12.1 718
<br />December 372 13 11 12.0 738
<br />Calendar year 1996 326,388 1,980 11 892 647,400
<br /> Rio Grande below Caballo Dam, N, Mex.
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<br />Location.-Water-stage recorder, lat 32053'05", long 1Or'17'31", in NE1/4SWl/4 sec. 30, T.16 S., R. 4 W., 2,000 ft upstream from Interstate
<br />Highway 25, 4,200 ft downstream from Caballa Dam, 1.3 miles upstream from Percha diversion dam, and 3 miles northeast of Arrey.
<br />Datum of gage is 4,140.90 ft above mean sea level, datum of 1929. October 13,1938 to December 31, 1945, at datum 5.0 ft higher.
<br />Draina2e area.-30,700 sq mi, approximately (includes 2,940 sq mi in closed basin in San Luis Valley, Colo.).
<br />Avera2e dischar2e.-59 years (1938-96) 930 ft3/s (673,800 acre-ft peT year).
<br />Extremes.-1938-96: Maximum daily discharge, 7,650 ft3/s May 20,1942; minimum daily, 0.1 ftJ/s Oct. 31 to Nov. 14, 1954, Nov. 7 to
<br />Dee, 31, 1955, Feb. 15-29,1972,
<br />Remarks.-Recor,ds good. Row regulated by Elephant Butte and Caballo ReservoiT5. Diversions for irrigation of about 800,000 acres
<br />above station.
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<br /> Monthly and yearly discharge, in cubic feel per second
<br /> Second- Maximum Minimum Runoff in
<br />Month foot-days daily daily Mean acre-feet
<br />January 7,635.0 705 1.0 246 15,14{)
<br />February 20,839 1.180 110 719' 41.330
<br />March 58,730 2.270 1.200 1.895 116,500
<br />April 43.346 2,020 76ll 1,445 85,980
<br />May 53,130 1,980 1.380 1,714 105,400
<br />June 59,430 . 2,250 1.250 1,981 117,900
<br />July 54,770 2.380 1,180 1,767 108,600
<br />August 55,440 2,370 1.280 1,788 110,000
<br />September 36,754 2,D30 620 1.225 72,900
<br />October 194,0 9.0 4,0 6.26 385
<br />November 102.0 4,0 2,0 3,4{) 202
<br />December 52.0 2.0 1.0 1.68 103
<br />Calendar Year 1996 390,422,0 2.380 1,0 1.D67 774,400
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