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<br /> MONTRLY SlIMMARY OF DI!;CRARGE
<br /> RIO GRANDE AT DTOO BRIDGE NEAR SAN ILDEFONSO~ N. MEX.
<br />L~~tion.- Water_stage recorder, lat. 35052125n~ long. 106008~35n in San Ildefonso rueblo Grant 250 feet down_
<br />--stT'e'"am from hil!'hway bridge, 1 3/4 miles southwest of' San fidefonso Pueblo~ 2, miles downstream from Rio
<br />Pojoeque~ and 7 miles west of Pojoaque. Datum of ga;e is 5~488.48 feet above mean see level, 'dat~ of 1929.
<br />Draina~e area.. 14,300 square miles (includes 2~940 square miles in closed basin in northern part of San Juan V alley ~
<br />Colo. )
<br />Records available.- February 1895 to December 1904, June 1909 to December 1951.
<br />Extremes.- Maximum discharge dUrin~ year, 3~40 second_feet Aug. 4 (gage height 5.99 feet)l minimum daily discharge
<br />---rrrsecond feet AUF!. 19. 20.
<br /> 1931-1951: Maximum discharge 22,500 second.feet K~ 16, 1941; maximum gage height 13.70 feet May 14, 1941.
<br />mini~u~ daily discharge 128 second_feet June 21. 1934.
<br />Remarks.- Records good except those for periods of no gage height record, which are fair. Flow partly regulated
<br />~1 Vado Reservoir. Diversions above station for irrigation.
<br /> Socond- Run-ofr in
<br /> l~onth foot-da::s HllximllJll 1:ir.iM~~ Mean Acre-feet
<br />January - - -- - - - - - - - - - - - 15,803 547 460 510 31,340
<br />February - - - . - - - . - - - - - - 30,23U 1,750 351 1~080 59,970
<br />March - - - - - - - - - - - - - - -- 1.4,795 65a 361 411 29,350
<br />April - - - . - - - - - - - - - - - - 11,269 440 332 316 22,350
<br />Bay - - - - - - - - - - - - - - - -- 25.553 1,520 2a2 a24 50,680
<br />J=. - - - - - - - - . - - - - - - - 25,761 1,150 622 a59 51,100
<br />July - - - - - - - - - - - - - - - - 16,613 1,250 111 536 32~950
<br />August. - - - - - - - - - - - - - -- IS ,611 1,750 153 5rn. 30,910
<br />September - - - - - - - - - - - - -- (j,642 320 la3 221 13,170
<br />October - - - - - - - - - - - - . - - 7,291 397 195 235 1.4.460
<br />Jlovember - - - - - - - - - - - - - - 10.323 416 2a5 344 20,480
<br />Decl!lmbcr - - - - - - - - - - - - -- 15 255 1 210 311 492 )0 260
<br />Y"!lr 1951 - - - --.- -- -- - - - '9"5' 1 "0 '" '" ," ,-
<br /> RIO GRANDE BELOW ELEPHANT BUTTE DAM, N. MEX.
<br />Location._ Water_stage recorder, lat. 330091:)5", long. 107012'10", in N! sec. 25. T. 15 5., R. 4 W.(projected), 3aoo
<br />~downstream from Elephant Butte Darn.
<br />Records available.- October 1916 to ~ecember 1951.
<br />Averue discharR'e._ 35 years, 1169 second_feet.
<br />Extremes._ Madm1.nTl daUy discharge during year, 1660 second-feet March 30; minimum dai~ discharge 2.6 second_feet
<br />~ember 23.
<br />~.- Records good. Many diversions above station for irrigation. Flow regulated hT ~lephant Butte Reservoir.
<br /> SPcono:1 Run-eff in
<br /> Month foot-da'"s Ma:J;im'- Minimum .... Aore-feet
<br />January - --- - - - -- - - -- - 27,775 1,270 590 a96 . 55.090
<br />February - - - - - - - - - - -. - - - 26,866 1,360 65a 960 53,290
<br />lIarch - - - . . - - - - - . - - - . - 32,673 1,660 614 1,054 64,810
<br />April - - - - - - - - - - - - - - - - 31,064 1,530 2eo 1,035 61,610
<br />lay - - -- - - - - - - - . - - - - - 1.4,969 a54 11 4a3 29,690
<br />June- - - . - - . - - - - - - - . - - 31,642 1,380 arn. 1,055 62,760
<br />July. - - - - -- - . - - - - - - - 27,645 1,310 2&\ a92 54,830
<br />Aucust - - - --- - -- - -- - -- 1,,650.2 &\2 4.6 505 31,040
<br />September - - - - - - - - - - - - - 7,413.3 a06 2.6 241 14,700
<br />Oi:ltober - - - - - - - -- -- -- - - 121.5 1.a 2.a 3:i.i 241
<br />NO'le':1t.er - - - - - - . -- - 191.2 ~G 1.4 U 319
<br />Dece";'Jber - -- - - -- - -- - - -- 138.8 _4 215
<br />Ie-", -'--- - -- . - --- - 216,149.0 1,660 2.6 592 428,700
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