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SECTION 1.A. APPLICABLE COMPACTS The applicable Compacts are described below, followed by methodologies for evaluation of "Compact Impairment". Section 1.A.1 Colorado River Compact of 1922 The Colorado River Compact (Compact) allocates water between the upper and lower Colorado River Basin states. The current Hydrologic DetemLination, the best estimate of the water available to the Upper Basin under the Compact, for planning purposes, is 6 million acre-feet (mat). This amount, however, is in the process of being increased to approximately 6.22 mal'. Colorado has no specific delivery requirement wlder this Compact in any river basin, including the Animas River. Section 1.A.2 Upper Colorado River Basin Compact of 1948 The Upper Colorado River Basin Compact (DC Compact) allocates water among the Upper Basin States. Colorado is entitled to 51.75% of the Hydrologic Determination for the Upper Basin States. Article XIV ofthe UC Compact states: The State of Colorado agrees to deliver to the State of New Mexico from the San Juan River and its tributaries which rise in the State of Colorado a quantity of water which shall be sufficient, together with the water originating in the San Juan Basin in the State of New Mexico, to enable the State of New Mexico to make full use of the water apportioned to the State of New Mexico by Article In ofthis [UC] Compact subject, however, to the following: (a) A first and prior right shall be recognized as to: (1) All uses of water made in either State at the time of the signing of this Compact This clause requires Colorado to deliver to New Mexico adequate water to meet New Mexico's UC Compact apportionment, except that Colorado's Qre-1948 water rights are senior to New Mexico's post-1948 water rights. Colorado is required to deliver water from the Animas River adequate to meet New Mexico water rights within the Animas River basin, and possibly on the San Juan River downstream of the confluence with the Animas River. Section 1.A.3 Animas-La Plata Proiect Compact The Animas-La Plata Compact (ALP Compact) was developed "in order to implement the operation ofthe Animas-La Plata Federal Reclamation Project". Article I states: The right to store and divert water in Colorado and New Mexico from the La Plata and Animas River systems, including return flow to the La Plata River from the Animas River diversions, for uses in New Mexico under the Animas-La Plata Federal Reclamation Proiect shall be valid and of equal priority with those rights granted by decree of the Colorado state courts for the uses of water in Colorado for that project providing such uses in New Mexico are within the allocation of water made to that state by articles nI and XIV of the upper Colorado River Compact [emphasis added]