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<br />RIO GRANDE COMPACT COMMISSION REPORT
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<br />Rio Grande below Elephant Butte Dam, N, Mex.
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<br />Location.-Water-stage recorder, lat 33008'54", long lOj"012'22", in SW1/4 see, 25, T.l3 S" R 4 W" (projected) in Pedro Armendariz
<br />Grant, 1.0 mile downstream from dam and 1.5 miles upstream from Cuchillo Negro River, Datum of gage is 4,242.09 it above mean
<br />sea level, datum of 1929. Prior to April 23, 1942, at several different sites and datums.
<br />Drainaee area.-29,450 sq mi, approximately (includes 2,940 sq mi in dosed basin in San Luis Valley, Colo,).
<br />Avera.. dischar",-a:J years 0915-97, 1,008 It' Is <730,300 acre-ft per year),
<br />Extremes.--1915-97: Maximum daily discharge, 8,220 f~ Is May 22, 1942; no flow at times prior to 1929 and March 24, 1979.
<br />Remark.....-Records good. Row 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 feet per second
<br /> Second- Maximum Minimum Runoff in
<br />Month foot-days daily daily Mean acre-feet
<br />January 3,531 70S 10 114 7,000
<br />February 32,864 1,590 582 1,174 65,190
<br />March 45,8m 2,150 564 1,478 90,850
<br />April 46,412 2.230 894 1.547 92,060
<br />May 46,015 2,190 985 1,484 91,270
<br />June 60,070 2.300 1,690 2,002 119,100
<br />July 68.800 2,330 1,270 2,219 136,500
<br />August 45,055 2,mO 561 1,389 85,400
<br />September 25,759 1,790 17 859 51.090
<br />Octobe< 11.322 1,500 13 365 22,460
<br />November 311.0 15 8,4 10.4 617
<br />Decembe< 398 17 10 12,8 789
<br />Calendar year 1997 384,34llQ 2,330 8.4 1,053 762.300
<br /> Rio Grande belowCaballo Dam, N. Mex.
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<br />Location.-Water-stage reolrder,lat32053'OS", long 1()7Ol7'31", in NEl /4SW1l4 see. 30, T.16 S., R. 4 W., 2,000 ft upstream from Interstate
<br />Highway 25, 4,200 ftdownstream from Caballo Dam, 13 miles upstream from Percha diversion dam, ~d 3 miles northeast of Arrey.
<br />Datum 01 gage is 4,140,90 It above mean sea leveL datum 011929, October 13,1938 to Dec.mber 31,1945, at datum 5,0 It higher.
<br />Drainaqe area.-30,700 sq mi, approxiIDately (includes 2,940 sq mi in dosed basin in San Luis Valley, Colo.).
<br />Avera.. disdtar...-60 years 093S-97) 933 It' I s (676,000 acrl>-It per year). '
<br />Extremes.-1938-97: Maximum daily discharge, 7.650 1t'ls May 20, 1942; minimum daily, OJ 1t'/s Oct 31 to Nov, 14, 1954, Nov, 7 to
<br />Dee. 31, 1955, Feb. 15-29, 1972,
<br />Remarks.-Records good. Row regulated by Elephant Butte and Caballo Reservoirs. Diversions .lor lITigation of about 8OO,lDJ acres
<br />above station.
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<br /> Monthly and yearly discharge, in cubic feet per second
<br /> Second- Maximum Minimum RlUlollin
<br />Month loot-days daily daily Mean acre-feet
<br />January 3,269.0 334 1.0 105 6,480
<br />February 13.316,0 l,mO 1.0 476 26,410
<br />March 59,790 2,570 1,230 1,929 118,600
<br />April 39,830 1,620 1,070 1.328 7'J,000
<br />May 44.240 2.180 1,090 1,427 87,750
<br />June 64,400 2,640 1,630 2,147 127,700
<br />July 66,052 2,620 812 2,131 131,000
<br />August 55,7J6 2,330 406 1.797 110,500
<br />September 37,919 2,020 328 1,264 75,210
<br />Octobe< 18,(130 1.400 4.0 582 35,760
<br />November 120 4.0 4,0 4,00 238
<br />December 53 2.0 1.0 1.71 105
<br />Calendar Year 19'17 402,735.0 2,640 1.0 1,lm 7'J8,800
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