WSP09505

• File Number: 8543.200
• Description: Projects in the Closed Basin
• State: CO
• Basin: Rio Grande
• Water Division: 3
• Date: 11/1/1957
• Title: Data Relative To Operation Of Rio Grande Compact ‎(1940-1956)‎
• Water Supply Pro - Doc Type: Data

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D:l.versioDll

The following tabulation ehows the average diversions for the same periodB

in which streantlows have been grouped. The figures in parenthesee indicate percen.-

tages of 1928-1937 averages in the ease ot diversione in Colorado. In the case of

releases from project storage, percentages shown are those of the "normal release"

of 790,000 acre feet specified in the Compact.

Un1 ts 1,000 aere feet
1928-37 1940-56 1943-56 1953-56
Del Norte to Al8Jll)sa 526.9 (100) 496.3 (94) 490.0 (93) 351.1 (66)
To Closed Basin * 291.8 (100) 273.0 (94) 266.1 (91) 158.7 (54)
Conejos River * * 304.2 (100) 281.5 (93) 269.6 (89) 192.8 (63)
Release of Usable
Water trom Project
Storage BOUl (191) 614.2 (78) 311.0 (39)

* By four major canals entering closed basin

* * Average 1933-37

Del1:~eries Under Compact Sehedules
In the 17 'Tear period since the operation ot the Compact, 1940-1956, Colo-
rado delivered at the Lobatos gage near the State line a total of 123,000 aere teet
in excess of the amounts required by the Compact delivery schedu.les. NEIll Mex:l.co's
aggL"8gate deliveries were some 500,000 aere teet less than the schedule requirements
during the same period. Colorado and NEIll Mexico each made excess deliveries in o~

5 of the 17 )'ears.
In the 14 )'ears since the spill at Elephant Bu.tte, 1943-1956, Colorado's

aCCllllll11ated deliveries have been approximate~ 222,000 aere teet less than schedule

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