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\81<J reseIVoirs through the Fort Lyon Storage Canal (storage canal) cease. For illustrative purposes, an initial size of 7,384 af C.U. per year of consumable yi~Id attributable to 5,814 participating shares has been chosen. If delivered to the river as a uniform, rnstant demand, 5,000 af C. U. is equivalent to 6.9 cfs, The following would be sources of water f9r the water bank: "Deferred" diversions at the main headgate ami the storage canal headgate: water attributable by detailed accounting to FLee shareholders participating in the water bank, i.e., water normally delivered to the designated shareholders, which is left in the river for diversion elsewhere, pursuant to ~ rental agreement with the FLWB. ! Water leased prior to March 15th and held in storage: water purchased from FLCC or its shareholders (or others, as needed) and placed in contract space in Pueblo ReseIVoir and Adobe Creek ReseIVoir. Operations, accounting practices and decision making for the FL WB must be carried out on a daily basis and must be compatible with the current cooper~tive administrative practices on the river as part of the substitute water supply plan or appropriat~ water rights adjudication, The eJl:ampIes of water bank operations included herein are presented las monthly summaries of daily operations in acre feet (at) or instantaneous flow rates in cubic feet per second (cfs). Determination of divertabIe yield from water bank participants is addressed first. Then the development of delivery requirements is addressed. To keep the river whole and avoid injury to other water rights, quantification and accounting oftransit losses, return flow obligations, storage management and evaporation losses, and carriage considerations inside the FLCC system mus~ be analyzed and computed on a daily basis. Land fallowing requirements placed upon participating shareholders also affect return flows. All of these elements are addressed in the following paragr~phs. A schematic drawing of the water bank operation is presented in Figure 7.2. I Diversions and Transferable Yield Transferable yield is defined as diversions less return flows to the river less adjustments. Adjustments such as the consumable loss in the main canal and laterals are computed to protect FLCC operations and non-participating shareholded. Yield is the consumptive use portion of the diversion less the adjustments. The components o~ the historical annual average diversions are summarized in Table 7.1 from the analysis in Chl\pter 3. The percentages in Table 7.1 were calculated. For enmpIe, the percentage of return flows was calculated as follows: 60, 088 af %: 222, 919 af x .100 : 26. 96 % . Diversions are defined as all water historically and a9uallY diverted and measured through the FLCC headgates. Fryingpan-Arkansas Project (Fry-Ark) w~ter is also diverted at the FLCC headgate, but has been factored out and is not included in the dist~ibution analysis. Shareholders may not pledge Fry-Ark water to the water bank and may not appIyIFry-Ark water to lands designated as fallowed under the FLWB program. Refer to Section 7.4. " 7-14 I !