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<br />RIO GRANDE BEI~OW ELEPHANT BUTTE DAM, N. MEX.
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<br />LOCATION - Water.stage recorder, lat. 33 degrees 9 min" long~ 107 degrees 11 min., in
<br />NE'14 sec. 25, T. 13 S~, R. 4 W., (surveys by Bureau of Reclamation), 1,800 feet down-
<br />stream from Elephant Butte Dam in Pedl'o Arniendaris. grant. Prior to January 1,
<br />1941, water.stage recorder at site 128 feet .downstream, prior to January 17,. 1939 at
<br />site 400 feet upstream, both gages at different data. Zero of gage is 4,241.39 feet
<br />above mean sea level.
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<br />RECORDS A V AILABLE - October 1916 to December 1941.
<br />EXTREMES - Maximum daily discharge during year, 3,410 second-feet November 19;
<br /> minimum daily discharge, 467 second.feet April 10.
<br /> 1916-41: Maximum daily discharge,'3,41O second-feet Nov, 19, 1941; no flow at times,
<br />REMARKS - Records excellent. . Considerable diversion upstream for irrigation. Flow
<br /> regulated by storage in Elephant Butte Reservoir (capacity when constructed,
<br /> 2,638,000 acre-feet). ..
<br /> Discharge, in second-feet, calendar year 1941
<br />Day Jan, Feb. . Mar. Apr. May June July Aug. Sept. Oct. Nov. Dee
<br />1 897 1,010 882 919 1,320 1,020 1,750 2,240 1,890 798 1,230 1,380
<br />2 1.027 714 604 910 1,300 1,070 . 1,740 2,280 1,490 949 '1,040 1,410
<br />3 991 973 868 908 1,320 1,070 1,860 1,960 1,210 1,110 1,420 1,430
<br />4 1,000 1,020 878 894 1,190 1,050 2,190 1,430 1,110 1,090 2,010 1,290
<br />5 700 983 888 879 1,250 877 2,250 2,040 1,070 980 2,560 1,400
<br />6 950 901 836 624 1,270 1,070 2,100' 2,250 1,090 1,110 2,570 1,410
<br />7 956 890 863 833 1,270 1,04{) 2,140 2,250 958 :1,.210 2,910 1,290
<br />8 948 932 856 877 1,250 953. 2,190 2,260 1,010 1,120 3.030 1,860
<br />9 938 644 587 863 1.200 1,060 2,010 2,190 899 1,230 3,070 1,960
<br />10 902 903 868 467 1,240 1,070 2,300 2,150 1,070 1,260 3,170 1.480
<br />11 896 933 905 881 1,230 1,090 2,500 1,940 1,070 1,000 3,250 1,480
<br />12 555 942 891 856 1,250 1,120 2,530 1,760 1,070 1,160 3,220 1,460
<br />13 880 916 896 613 1.230 1,050 2,210 . 1,030 1,090 1,250 3,300 1,440
<br />14 948 949 886 876 1,210 1,200 1,850 1,000 836 1,260 3,340 1,360
<br />15 931 919. 851 898 1,240 1,010 1,490 1,030 1,240 1,240 3,340 1,420
<br />16 921 634 604 909 1,230 1,110 1,780 1,010 1,190 1,320 3,190 1,430
<br />17 940 840 868 892 1,210 1,130. 2,090 948 1,100 1,300 3,250 1,420
<br />18 904 893 905 931 1,140 1,130 2,810 1,050 1,080 1,250 3,380 1,420
<br />19 556 .. 881 903 985 1,170 1,130 2,300 1,070 1,080 1,140 3,410 1,420
<br />20 914 873 890 921 1,180 1,050 2,190. 1,080 1,010 1,220 3,330 1,420
<br />21 934 880 901 1,135 1,170 2,260 2,160 1,370 851 1,120- 3,210 1,330
<br />22 938 858 889 1,210 1,160 2,300 2,080 1,800 705 1,210 3,350 1,380
<br />23 895 573 794 1,260 865 2,310 1,470 1,550 1,070 1,190 3,220 1,430
<br />24 912 873 887 1,240 1,120 2,130 1,880 1,280 1,090 1,300 3,090 1.300
<br />25 900 903 817 1,150 944 2,080 2,010 1,720 809 1,270 2,360 1,260
<br />26 598 888 869 1,180 1,120 2,120 2,020 1,850 1,080 1,080 2,200 1,330
<br />27 848 895 870 895 1,210 1,980 2,190 1;690 736 1,230 2,190 1,360
<br />28 958 893 877 1,170 1,150 1,450 1,780 1,670 998 1,250 1,620 1,300
<br />29 952 863 1,260 1,150 1,690 1,530 1,510 909 1,220 1,380 1,370
<br />30 950 609 1,380 1,140 1,740 1,800 1,190 606 1,230 1;230 1,390
<br />31 960 850 1,140 1,920 1,400 1,230 1,400
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<br /> Secor.d- Run-off in
<br /> Month foot-days Maximum Minimum Mean acre-feet
<br />January ...................~~~~......... ...............~h....._... 27,599 1,027 555 890 54,740
<br />February ......0............0...........................0.....0.... 24,513 1,020 573 875 48,620
<br />March ..m.........~h...........~..'h..m..m.......hm..._... 25,955 905 587 837 51,480
<br />April ................m.m.......m.m......'...................m 28,816 1,380 467 961 57.160
<br />May .m........hm.............m_...~m......................~'.. 36,869 1,320 865 1,189 73 ,130
<br />June . ....... .~~..~..m....m....................m.m............... 41,360 2,310 877 1,379 82,040
<br />July __.__n_n___ _______,__*__ ___n___ _*__________n____ _'_n_____ ____ __ 63,120 2,810 1,470 2,036 125,200
<br />August m....mmh....h..~....m..........~...m.............. 49,998 2,280 948 1,613 99,170
<br />September ........m...._m.........~m'~~~.h...m.....m.. 31,417 1,890 606 1,047 62,310
<br />October m......h....................~...'h.....'.................. 36,327 1,320 798 1,172 72,OJO
<br />November ...h.h....'mm..h...............h...h....mm. 79,870 3,410 1,040 2,662 158,420
<br />December ..............m......~....m...mm..m..m..~h..~ 44.030 1,960 1,260 1,420 87,330
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<br /> Year .., 0.....0......0......."...0., ..h...............mn...489,87 4 2,810 467 1,342 971,650
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