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<br />RIO GRANDE COMPACT COMMISSION REPORT
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<br />44
<br />
<br />Reservoirs in Rio Grande Basin in New Mexico
<br />(Constructed or enlarged since 1929)
<br />
<br />El Vado Reservoir.--Water-stage recorder (staff gage only below elevation 6,878.0 ft),
<br />lat 36034'45", long 106043'55" on Rio Chama. Storage began in January 1935. Capacity,
<br />194,500 acre-ft at elevation 6,902.0 ft (crest of spillway), as determined by partial-
<br />sediment survey in 1954. Staff gage readings furnished by Middle Rio Grande Conser-
<br />vancy District.
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<br /> Mon -en e eva on n ee an con en . n acre- ee
<br /> Date Elevation Contents Change in contents
<br />December 31, 1958 . . . 6.774.9 2.400 -
<br />January 31, 1959 . . . . 6.774.2 2.210 -190
<br />February 28 . . . 6.776.0 2.720 +510
<br />March 31 . . . 6.776.2 2,780 +60
<br />April 30 . . . . 6.778.6 3.600 +820
<br />May 31 . . 6,824.6 37,360 +33.760
<br />June 30 . . 6.824.6 37,360 0
<br />July 31 . . 6,807.6 21.120 -16,240
<br />August 31 6.806.5 20,230 -890
<br />September 30 6,794.8 11,880 -8,350
<br />October 31 6,794.8 11,880 0
<br />November 30 6,774.6 2.320 -9.560
<br />December 31 . 6,773.6 2,060 -260
<br />Calendar year 1959 - - -340
<br />
<br />McClure (Granite Point) Reservoir.--Water-stage recorder in NE~SW~ sec. 24, T. 17 N.,
<br />R. .10 E.. on Santa Fe River. Original reservoir, capacity. 561 acre-ft. completed in
<br />1926 and not subject to terms of Rio Grande Compact; in 1935, permanent flash boards
<br />were installed in spillway increasing capacity to 650 acre-ft; in 1947 both dam and
<br />spillway were raised increasing capacity to 3,090 acre-ft (gage height, 103.1 ft, at
<br />which radial gates open automatically). .
<br />
<br /> Month-end l7al7e hei ht in feet, and contents, in acre-feet
<br /> Date Gage height Contents Ch.ange in contents
<br />December 31, 1958 89.0 2,100 -
<br />January 31, 1959 88.1 2,040 -60
<br />February 28 . . 88.0 2,030 -10
<br />March 31 . . 87.3 1,990 -40
<br />April 30 . . . . . 85.9 1.900 -90
<br />May 31 . . . . 87.6 2,010 +110
<br />June 30 . 83.7 1.770 -240
<br />July 31 . . 76.6 1,370 -400
<br />August 31 . . . . . 75.5 1,310 -60
<br />September 30 . 76.2 1,340 +30
<br />October 31 . . . 75.9 1,330 -10
<br />November 30 . . . 76.4 1,360 +30
<br />December 31 . . 77 .3 1,400 +40
<br />Calendar year 1959 . . . - -700
<br />
<br />Nichols Reservoir.--Water-stage recorder in E~NE~ sec..21, T. 17 N., R. 10 E., on Santa Fe
<br />River. Completed in 1942; capacity, 796 acre-ft. Water is for municipal use in Santa
<br />Fe.
<br />
<br />Month-end gage height, in feet, and contents, in acre-feet
<br />
<br /> Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec. alendar
<br />Month year
<br /> 1958 1959 1959 1959 1959 1959 1959 1959 1959 1959 1959 1959 1959 1959
<br />Gage height 61.7 59.1 154.7 148. 147.4 154.1 156.5 156.6 156.0 142.3 39.C 143. 143. -
<br />Contents 36 70 369 256 239 358 410 412 398 168 29 178 187 -
<br />Change in contents - 66 101 113 -17 +119 +52 +2 -14 -230 f-39 1+49 +9 -349
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