Rio Grande - Rio Grande Reservoir Multi-Use Enlargement_Application Addendum

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,10 Mr. Travis Smith, Superintendent October 16, 2003 Page 4 water years 1946-67, it would have reduced the water available to Colorado water users and it would have increased the water available to Colorado water users in 1968-85. The use of an enlargement to Rio Grande Reservoir would appear to us to be subject to Articles III, VI, VII, and VIII of the Compact. Article III requires that the Del Norte index flow 'be adjusted upward for any water retained in reservoir storage constructed after 1937. The applicable provision in Article VI states In the case of Colo-rado, no annual debit nor accrued debit shall exceed 100,000 acre feet, except as either or both may be caused by holdover storage of water in reservoirs constructed after 1937 in the drainage basin of the Rio Grande above Lobatos~ Within the physical limitations of storage capacity in such reservoirs, Colorado shall retain water in storage at all times to the extent of its accrued debit. Article VII states Neither Colorado nor New Mexico shall increase the amount of water in storage in reservoirs constructed after 1929 whenever there is ~ess than 400,000 acre-- feet of usable water in Project Storage; providedt that if the actual releases of usable water from the beginning of the calendar year following the effective date of this Compact, or from the beginning of the calendar year following actual spillt have aggregated more than an average of 790tOOO acre-feet per annum, the time at which such minimum stage is reached shall be adjusted to compensate for the difference between the total actual release and releases at such average rate; provided, further, that Coloradol or New Mexico, or bothr may relinquish accrued credits at any time, and Texas may accept such relinquished waterf and in such event the statel or statesl so relinquishing shall be entitled to storage water in the amount of the water so relinquished. Arti cl e VIII states During the month of January of any year the Commissioner for Texas may demand of Colorado and New Mexico, and the Commissioner for New Mexico may demand of Colorador the release of water from storage reservoirs