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<br />RIO GRANDE COMPACT COMMISSION REPORT
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<br />34
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<br />Conejas River near Mogote, Colo.
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<br />Location.--Water-stage recorder, lat 37003'14", long 106011'13", in SE~SE~ sec. 34, T. 33 N., R. 7 E.,
<br />on right bank 25 ft upstream from bridge on State Highway 174, 0.4 mile downstream from Fox Creek,
<br />and 5.3 miles west of Mogote. Datum of gage is 8,271.54 ft above mean sea level.
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<br />DrainaRe area.--282 sq mi.
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<br />AveraRe discharge.--67 years (1904, 1912-77), 328 cfs (237,600 acre-ft per year).
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<br />Extremes.--1903-05, 1911-77: Maximum discharge, 9,000 cfs Oct. 5, 1911 (gage height, 8.50 ft, from
<br />from rating curve extended above 3,000 cfs; minimum daily determined, 10 cfs July 18, 1904.
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<br />Remarks.--Records good except those for winter months, which are fair. Diversions above station for
<br />~gation of about 500 acres. Since 1951 flow partly regulated by Platoro Reservoir.
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<br />Monthly and yearly discharge, in cubic feet per second
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<br /> Month Second- Maximum ltinimum Mean Runoff in
<br /> foot-days daily daily acre-feet
<br />January 791 32 19 25.5 1,570
<br />February 1,013 45 30 36.2 2,010
<br />March 1,580 72 39 51.0 3,130
<br />Apr 11 5,093 420 44 170 10,100
<br />May 11,100 690 145 358 22,020
<br />June 5,852 502 64 195 11,610
<br />July 2,168 154 30 69.9 4,300
<br />August 3,470 348 33 112 6,880
<br />September 3,038 222 53 101 6,030
<br />October 2,608 180 44 84.1 5,170
<br />November 1,354 59 30 45.1 2,690
<br />December 1,256 47 25 40.5 2,490
<br />Calendar year 1977 39,323 690 19 108 78,000
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<br />San Antonio River at Ortiz, Colo.
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<br />Location.--Water-stage recorder, lat 36059'35", long 106002'17", in New Mexico in NE\SEh, sec. 24,
<br />T. 32 N., R. 8 E., on left bank 800 it south of New Mexico-Colorado State line, 0.4 mile southeast
<br />of Ortiz. and 0.4 mile upstream from Los Pinos River. Altitude of gage is 7,970 ft.
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<br />DrainaRe area.--l10 sq mi.
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<br />Average discharge.--37 years (1941-77), 24.2 cfs (17,530 acre-ft per year).
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<br />Extremes.--1920, 1925-77: Maximum discharge. 1,750 cis Apr. IS, 1937 (gage height, 5.38 ft).
<br />from rating curve extended above 1,000 cfs; GO flow at times.
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<br />Remarks.--Records good above 10 cis and fair below. A few small diversions above station for
<br />~gation.
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<br />Monthly and yearly discharge, in cubic feet per second
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<br /> Month Second- Maximum Hinimum Mean Runoff in
<br /> foot-days daily daily acre-feet
<br />January 0 0 0 0 0
<br />February 11. 5 1.5 0 .41 23
<br />March 128.5 8.0 2.0 4.15 255
<br />April 732.6 58 5.2 24.4 1,450
<br />Hay 125.40 13 .60 4.05 249
<br />June .82 .40 0 .027 1.6
<br />July 22.41 6.8 0 .72 44
<br />August 42.31 25 0 1.36 84
<br />September 10.40 4.3 0 .35 21
<br />October 25.59 2.2 .05 .83 51
<br />November 88.7 7.2 1.2 2.96 176
<br />December 74.9 3.0 1.0 2.42 149
<br />Calendar year 1977 1.263.13 58 0 3.46 2,510
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