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56.48 .13 Cerro Canal 22.07 Incremental allocation is 11.18% of the usable discharge in excess of 55.35 C.F.S. and less than 56.48 C.F.S. 61.48 1.00 Creek 23.07 Incremental allocation is 100% of the usable discharge in excess of 60.48 C.F.S. and less than 61.48 C.F.S. 64.22 At usable creek discharge of 64.22 C.F.S. the Cerro Canal direct flow permit becomes operative after 1,000 acre-feet has been stored in Eastdale Reservoir No. 1. 139.70 27.55 Cerro Canal 50.62 Incremental allocation is 36.5% of the usable discharge in excess of 64.22 C.F.S. and less than 139.70 C.F.S. The actual discharges of Costilla Creek at the Canyon Mouth Gaging Station at which the various blocks of direct flow water become effective shall equal the flows set forth in column (1) increased by the transmission losses necessary to deliver those flows to the headgates of the respective direct flow ditches diverting in New Mexico. The delivery of ditch water at the boundary shall equal the allocation set forth in columns (2a) and (2b) reduced by the transmission losses between the headgate of the ditch and the point where the ditch crosses the boundary. The allocations to be delivered to Colorado through the Cerro Canal represent, except as otherwise indicated in column (5) of the table above, 36.5 percent of those blocks of direct flow water of the Costilla Reservoir System which are subject to adjustment as provided in subsection (e) of this article. The provisions of article III (1) (a) shall not be applicable to the Colorado allocation of 5.08 C.F.S. which is transferred from the Acequia Madre to the Cerro Canal by this amendment to the Costilla Creek compact and shall not be applicable to the 0.8 C.F.S. which is transferred from Colorado to New Mexico by this amendment to the Costilla Creek compact. The above table is compiled on the basis of the delivery to Colorado at the boundary of thirty-six and five -tenths percent (36.5%) of all direct flow water of the Costilla Reservoir System diverted by the Cerro Canal and the delivery at the boundary of all other direct flow water allocated to Colorado, in the order of priority, all such deliveries to be adjusted for transmission losses. In the event of change in the usable capacity of the Costilla Reservoir, Colorado's share of all direct flow water of the Costilla Reservoir System diverted by the Cerro Canal, to be delivered at the boundary and adjusted for transmission losses, shall be determined by the percentages set forth in column (4) of the table which appears in subsection (e) of this article. (c) During the storage season, no water shall be diverted under direct flow rights unless there is water in excess of the demand of all operating reservoirs for water from Costilla Creek for storage. (d) In order to assure the most efficient utilization of the available water supply, the filling of Eastdale Reservoir No. 1 from Costilla Creek shall be commenced as early in the spring as possible and shall be completed as soon thereafter as possible. The Cerro Canal or any other ditch which may be provided for that purpose shall be used, insofar as practicable, to convey the water from the Canyon Mouth to Eastdale Reservoir No. 1. During any season when the commission determines that there will be no surplus water, any diversions, waste or spill from any canal or canals supplying Eastdale Reservoir No. 1 will be charged to the quantity of water diverted for delivery to said reservoir. (e) The commission shall estimate each year the safe yield of Costilla Reservoir System and its component parts as far in advance of the irrigation season as possible, and shall review and revise such estimates from time to time as may be necessary. In the event the usable capacity of the Costilla Reservoir changes, the average safe yield and the equitable division thereof between the states shall be determined in accordance with the following table: Usable Average Capacity Annual Division of Safe Yield of Costilla Safe Yield Colorado New Mexico Reservoir (acre-feet) (acre-feet) (percent) (acre-feet) (percent) (1) (2) (3) (4) (5) (6)