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UOJ733 contractors, whose rights are junior to August 1, 1935) and located upstream of GMR, and (e) contents of GMR, exclusive of non-project and junior "refill" right water held in the reservoir, upon the initiation by Reclamation of storage (between April 1 and May 15 of each year). The Colorado River Water Division No.5 "fill" is achieved when the sum equals 154,645 acre-feet." . A reservoir fill according to the criteria of ~he Blue River Decree. "The sum of the (a) water actually stored in GMR since the initiation of storage (between April 1 and May 15 of each year), (b) releases of all inflow since the initiation of storage (between April 1 and May 15 of each year) greater than 60 cfs (amount that satisfies operating criteria provisions including downstream rights on the Blue River senior to August 1, 1935), (c) depletions caused by Senate Doc. No. 80 beneficiaries, including contractors, whose rights are junior to August 1, 1935 and located upstream of GMR, and (d) contents of GMR, exclusive of non-project water held in the reservoir, upon the initiation by Reclamation of Storage (between April 1 and May 15 of each year) pursuant to the Blue River Decree. The Blue River Decree "fill" is achieved when the sum equals 154,645 acre-feet." ~S':fl The 20,000 acre-feet release to the 15-Mile Reach would count against the first fill right of a reservoir because under Water Division 5 policy, the allowable fill under a first fill right cannot exceed the difference between a reservoir's Start of Fill Date storage and the maximum decreed storage amount under the first fill right (personal communication with Alan Martellaro,July 2001). StateMod and the C1 data set count the 20,000 acre-feet release against the reservoir's first fill right. This policy does not apply to a refill right where water can be diverted under a reservoir's refill priority up to the decreed amount of the refill right. StateMod and the C1 data set correctly handle this situation. Power releases made under the direct flow power right are not debited against the "paper fill" of Green Mountain reservoir by the Division 5 Engineer. StateMod and the C1 data set are currently not modeling this situation accordingly; StateMod and the C1 data set are debiting such power releases made under the direct flow power right against Green Mountain Reservoir's first fill right. Power releases made under the direct flow power right are debited in the accounting against the "paper fill" specified in the Blue River Decree which defines the fill obligations of Dillon Reservoir in relationship to Green Mountain Reservoir. Based on the results of the analysis using the C1 Data Set (Fourth Revision) and prior revisions, however, StateMod and the C1 data set were not correctly modeling the exchange and substitutions among Williams Fork Reservoir, Wolford Mountain Reservoir and Dillon Reservoir. Consequently, it was uncertain whether the fill obligations of Dillon Reservoir in relationship to Green Mountain Reservoir under the Blue River Decree were being handled correctly in StateMod and the C1data sets. The Revised StateMod and C1Data Set (Fifth i Revision) corrected this problem. 2.3.14 Modeling the Orchard Mesa Check Case Settlement - Reduced USA Grand Valley Power Plant Summer Call and HUP Pool Operation. An operational rule is available in StateMod and the C 1 Data Set set for releasing Surplus HUP Water to the USA Power Plant according to the Orchard Mesa Check Case Stipulation and Agreement in Water Division No.5 Case No. 91CW247. This operational rule was turned off in the C1 Data Set P:\Data \GEN\CWCB\19665\Repon Phase 2\FinalRepon12,Q2\Final_ Draft _ Repon(l-03),doc 26