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<br />RIO GRANDE COMPACT COMMISSION REPORT
<br />
<br />Reservoirs in Rio Grande Basin in New Mexico
<br />(Constructed or enlarged since 1929)
<br />
<br />Vado Reservoir.--Water-stage recorder and surface follower, lat 36035'39", long 106044'00",
<br />on R~o Cbama. Storage began in January 1935. Capacity, 196,500 acre~feet at gage height
<br />6,902.0 feet (crest of spillway), as determined by survey in 1966. Datum of gage is 8.21
<br />ft above mean sea level, datum of 1929.
<br />
<br /> Month-end Qalle heio:ht in feet and contents in acre-feet
<br /> Date Gage height Contents Change in Contents
<br />December 31, 1972 6,812.3 21,710 -
<br />January 31, 1973 6,812.3 21,800 .90
<br />February 28 6,814.0 23,250 +1,450
<br />March 31 6,829.2 39,500 +16,250
<br />April 30 6,863.6 93,690 +54,190
<br />May 31 6,886.4 148,100 +54,410
<br />June 30 6,895.8 176,200 +28,100
<br />July 31 6,896.3 177,800 +1,600
<br />August 31 6,890.5 160,000 -17,800
<br />September 30 6,880.7 132,700 -27,300
<br />October 31 6,878.0 125,800 -6,900
<br />November 30 6,878.1 126,000 +200
<br />December 31 6,878.2 126,300 +300
<br />Calendar year 1973 - - +104,590
<br />
<br />Abiquiu Reservoir.~~Water-stage recorder in SW~ sec. 8, T. 23 N., R. 5 E., on Rio Chama.
<br />Completed 1n February 1963j capacity, 1,216,000 acre~feet at elevation of 6,350 ft (crest
<br />of spillway). Reservoir is operated by Corps of Engineers for flood control and sediment
<br />storage. A resolution increasing pool for sediment retention to 4,000 acre-feet was
<br />approved by Rio Grande Compact Commission on Dec, 29, 1973.
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<br /> on -en e eva wn ,n ee , an content:s, ~n acre- eet
<br /> Date Elevation Contents Change in Contents
<br />December 31, 1972 6,108.74 1,960 -
<br />January 31, 1973 6,109.90 2,180 +220
<br />February 28 6,109.35 2,070 ~110
<br />March 31 6,109.07 2,020 -50
<br />April 30 6,112.15 3,120 +1,100
<br />May 31 6,209.58 164,800 +161,680
<br />June 30 6,217.14 194,000 +29,200
<br />JulY 31 6,197.95 124,200 -69,800
<br />August 31 6,183.48 83,200 -41,000
<br />September 30 6,183.46 83,150 -50
<br />October 31 6,183.46 83,150 0
<br />November 30 6,177.39 68,980 -14,170
<br />December 31 6,165.28 45,550 -23,430
<br />Calendar year 1973 - - 0\043,59{)
<br />
<br />McClure Granite Point Reservoir.-~Water-stage recorder in NE~SW~ sec. 24, T. 17 N., R. 10 E.,
<br />on Santa e ~ver. n.g1na reservoir, capacity, 561 acre-ft, completed in 1926 and not
<br />subject to terms of Rio Grande Compact; in 1935, permanent flash boards were installed in
<br />spillway increasing capacity to 650 acre~ft; in 1947 both dam and spillway were raised
<br />increasing capacity to 2,615 acre-ft (gage height. 96.6 ft, crest of spillway). From 1953
<br />to 1972 spillway was equipped with radial gates that opened automatically, increasing
<br />capacity to over 3,000 acre-ft.
<br />
<br /> Month-end gage heil1ht, in feet and contents in acre-feet
<br />Date Gage height Contents Change in Contents
<br />December 31, 1972 71.0 1,100 -
<br />January 31, 1973 74.0 1,240 +140
<br />February 28 69,4 1,030 -210
<br />March 31 78.1 1,450 0\0420
<br />April 30 97.2 2,660 +1,210
<br />May 31 97.1 2,650 -10
<br />June 30 97.0 2,640 -10
<br />July 31 96.0 2,570 -70
<br />August 31 94.9 2,490 -80
<br />September 30 95.0 2,500 .10
<br />October 31 90.5 2,190 -310
<br />November 30 86.2' 1,920 ~270
<br />December 31 85.2 1,860 -60
<br />Calendar year 1973 - - +760
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