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<br />. <br /> <br />. <br /> <br />PHASE IV: RECONNAISSANCE PLAN FORMULATION <br />The objective of this phase of the study will be to conduct <br />a reconnaissance level evaluation of the economic worth of a <br />candidate project. Project data will be updated and upgraded at <br />the beginning of this phase of the study, to insure that it is <br />suitable for reconnaissance level evaluation. <br />This phase of the study will be similar to the preliminary <br />plan formulation phase except that it will concentrate on a single <br />candidate project and will be performed to a higher degree of <br />intensity. Evaluations will be performed at a level commensurate <br />with reconnaissance level of planning. <br />Evaluation of the use of hydrologic models in the study, as <br />discussed later in this section, has led to the conclusion that <br />the MODSIM model developed by CWRRI would not be suitable for <br />simulation of the hydrologic operation of the basin at reconnais- <br />sance level. Therefore, it is anticipated that Tudor will utilize <br />one of the Hydrologic Engineering Center models to perform the <br />operations study task in this phase. However, Tudor reserves the <br />right to use further judgement, based on the 9utput and results <br />of the preliminary plan formulation, in selection of the model- <br />ling techniques to be used in this phase. The selected model <br />will be used as an operations study tool only<' Interactive data <br />management packages will be used in conjunction with the model <br />to generate data on flows and flood hydrographs at the facilities <br />sites. The economic output of the project will be evaluated out- <br />side of the model. <br />Reconnaissance level engineering studies will be conducted <br />in order to optimize each proposed facility within the candidate <br />project configuration. This optimization will be largely judge- <br />mental an~will attempt to economically optimize the yield and <br />capacity of the facilities. Storage and capacity characteristics <br />will be determined as necessary for input into the computer model <br />and reconnaissance level cost estimates will be developed. <br />Water supply and water use studies will be performed to <br />establish future water use scenarios, considering appropriate <br /> <br />I-5 <br />