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<br />RIO GRANDE COMPACT COMMISSION REPORT
<br />
<br />Rio Chama helow EI Vado Dam. N. Mex.
<br />
<br />Localion.-Water-stage ""order. lat 36"34'48". long 106043'24". in Tie".. Amarilla Granl, on left bank IS miles downstream from EI
<br />~ Dam, 2.8 miles uPStream from Rio Nutrias, and 13 miles SOUthwest of Tie".. Amarilla. Dalum of gage is 6,696.12 II above mean
<br />sealevel, datumofl929_ Prior to Cktober 1935, at site IS miles upstn-amand Cktober1935 to September 1938. at site I.J milesllps'ream
<br />at different datums.
<br />Drain..e area.-B77 sq mi of which about 100 sq mi is Probably nonoontriooting,
<br />Avera"" discharge.--4 years (1914, 192~23), 444 ft' Is (32~700 acre--ft per year) prior to completion of EI Vado Dam; 35 years (1936-70),
<br />372 ft'l s <269,500 acre-ft per year), priorto release of transmounlain water; 24 years 0971-94) 484 ft'/s 1350.700 acre-II per year).
<br />Extremes.-1914-16, 192().24.1936-94: Maximum discharge oOOerved. 9,000 ft'ls May 22, 1920 (gage height, 12 ft); no now Mar. 25. 26. 3~
<br />1955.
<br />Remarks.-Records good. Dwersions above station for inigalion of about 10,600 a=s. S;nce 1935 flow regula'ed by EI Vado Reservoir
<br />and since October 1970 now partly regulated by Heron Reservoir. Subsequent to May 1971 now affected by releases of
<br />transmountain water from Heron Reservoir.
<br />
<br /> Monthly and yearly diScharg<>, in cubic feet per second
<br /> Second_ Maximum Minimum Runoff in
<br />Month foot-days daily daily Mean acre-feet
<br />January 6.172 21J1 193 199 12.240
<br />February 5,559 2lll 185 199 11,030
<br />March 9,794 9]4 19] 316 19,430
<br />April 44.295 2.060 598 1,476 87,860
<br />May 70,261 4.350 461 2.266 139.400
<br />June 12,327 ].000 216 578 34,370
<br />July 2],374 1.260 211 6B9 42.400
<br />August 19,!l24 989 445 614 37,730
<br />September 8,970 471 2IJ7 299 17,790
<br />O:tober 6,540 229 183 211 12.970
<br />NOVember 5,720 254 183 191 11.350
<br />December 5,844 1% 183 ]89 11.590
<br />Calendaryear 1994 200,880 4,350 ]83 605 438,]00
<br />
<br />Rio Chama helow Abiquiu Dam. N. Mex.
<br />
<br />Location.-Water_stage recorder, lat 36014'12", long 106"24'59", in SEl/4SE1 14 see. 8, T. Zl N.. R.5 E., on right bank 0.8 mile downstream
<br />from Abiquiu Dam and 5.9 miles northwest of Abiquiu. Ahitllde of gage is 6,040 ft (from river-prome map and tOpographic map).
<br />Dral".e area.-2.147 sq mi of which abuutlOO sq mi is probably noncon'nbuting.
<br />Avera~p diS<"har~e.__9 years 0962-70), 376 ft'ls 1272.400 acre-f"" per year). prior to release of transrmun'ain water; 24 Y"ars 097~94),
<br />540 fiJls (391,200acre-ft per year).
<br />ExtremPs.-1961_94: Maximum discharge. 2.990 ft'ls July ~ 1965 !gage height. 6.69 It); minimum, about OS ft'ls Mar. 17. 1966, Jan. 28,
<br />1972.
<br />Remarks.-Records good. Flow regulated by Heron. EI Va do, and Abiquiu Reservoirs. Diversions aboves'ation forinigation of about
<br />17,6()(J acres. Subsequent to May 1971 now affected by the release of "ansmountain water from Heron Reservoir.
<br />
<br /> Monthly and yearly diSch_rg<>. in cubic fee' per second
<br /> Second- Maximum Minimum Runoff in
<br />Month foot-<lays d_il daily Mean acre-feet
<br />January S,]36 ]79 152 166 10,190
<br />Febrnary 3.938 182 89 141 7.810
<br />March 13.697 897 95 442 27.170
<br />April 48,610 1,:>90 1.240 1.620 96,420
<br />May 52.950 1,820 ].360 ].708 105,000
<br />June 54.030 1,850 ].410 1,801 11J1.200
<br />July 23.754 1.200 430 766 47.120
<br />August 20,659 897 ]96 666 40,980
<br />Septefl'lh€.r ]2.993 681 24] 433 25,770
<br />O::tober 12.032 788 124 388 23,870
<br />Nov€mber 4,823 443 98 161 9.570
<br />December 4,797 270 83 IS5 9,510
<br />Calendar year 1994 257,4]9 1,850 B3 705 510.600
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