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<br />RIO GRANDE cOMPACT COMMISSION REPORT
<br />
<br />Conejos River near Mogote, Colo.
<br />
<br />Location.-Water-stage recorder, 1at 37003'14"~ long 106011'13"'. in SE!t;S~ 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.
<br />
<br />Draina~e area.--282 sq mi.
<br />
<br />AveraRe discharRe.--66 years (1904. 1912-76), 331 cfs (239.800 acre-ft per year).
<br />
<br />Extremes.--1903-05. 1911-76: 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.
<br />
<br />Remarks.-Records good except those for winter months, which are fair. Diversions above station for
<br />irrigation of about 500 acres. Since 1951 flow partly regulated by Platoro Reservoir.
<br />
<br />~~
<br />
<br />MOnthly and yearly discharge. in cubic feet per second
<br />
<br /> Month Second- Maximum Minimum Mean Runoff in
<br /> foot-days daily daily acre-feet
<br />January 1.397 49 40 45.1 2.770
<br />February 1.664 64 48 57.4 3.300
<br />March 2.624 134 62 84.6 5,200
<br />April 7.771 520 101 259 15,410
<br />May 33,493 1,960 460 1.080 66,430
<br />June 34 ~O79 1,850 476 1,136 67.600
<br />July 7 ~ 719 512 119 249 15,310
<br />August 3.115 204 62 100 6,180
<br />September 1,953 131 48 65.1 3,870
<br />October 2~301 139 51 74.2 4,560
<br />November 2~479 320 25 82.6 4,920
<br />December 835 33 21 26.9 1.660
<br />Calendar year 1976 99,430 1,960 21 272 197,200
<br />
<br />San Antonio River at Ortiz, Colo.
<br />
<br />Location.--Water-stage recorder, 1at 36059'35". long 106002' 17", in New Mexico in NFJ1;SE~, sec. 24~
<br />T. 32 N.. R. 8 E., on left bank 800 ft 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.
<br />
<br />Drainage area.--ll0 sq mi.
<br />
<br />AveraKe discharge.--36 years (1941-76)~ 24.8 cfs (17.970 acre-ft per year).
<br />
<br />Extremes.--1920, 1925-76: Maximum discharge, 1,750 cfs Apr. 15, 1937 (gage height, 5.38 ft), from
<br />from rating curve extended above l~OOO cfs; no flow at times.
<br />
<br />Remar1ts.--Records good above 10 cis and fair below. A few small diversions above station for
<br />irrigation.
<br />
<br />Monthly and yearly discharge, in cubic feet per second
<br />
<br />I
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<br />
<br /> Month Second- Maximum Minimum Mean Runoff in
<br /> foot-days daily daily acre-feet
<br />January 76.1 3.2 2.2 2.67 151
<br />February 117.7 5.2 2.6 4.06 233
<br />March 600.3 49 5.5 19.4 1,190
<br />April 3~175 218 21 106 6.300
<br />May 2,715 180 18 87.6 5,390
<br />June 175.75 16 .15 5.86 349
<br />July .52 .30 0 .02 1.0
<br />August 38.0S 7.2 0 1.23 75
<br />September 17.20 4.8 0 .57 34
<br />October 67.5 3.4 1.0 2.18 134
<br />November 64.60 3.0 .40 2.15 .128
<br />December 14.95 1.4 .01 ,/ .48 30
<br />Calendar year 1976 7,062.67 218 0 19.3 14.010
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