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conducted, and will include both published and unpublished sources available through <br />public libraries, museums, universities, private organizations, and other government <br />agencies. The historic and archaeological site files of the Texas Archaeological Research <br />Laboratory, pertinent USACE Lake offices and the Texas Historical Commission will be <br />carefully reviewed to identify all sites previously recorded in the study area. The existing <br />conditions information will have a restricted distribution in order to protect site location <br />information. This information can be utilized as a planning tool in project alternative <br />screening. No field data collection or ground-truthing shall be conducted as part of this <br />phase of the study. The literature search, development of a predictive model and <br />preparation of a draft summary report (ID of potential constraints based on the <br />information reviewed and the predictive model results) will be conducted by Government <br />Contractor. In-house work efforts shall include preparation of the Task Order package for <br />CT, contract oversight, S&A, review/QA/QC of products, etc. <br />Engineering Branch: <br />Engineering Branch will provide preliminary designs for the study alternatives and <br />mitigation features and other appurtenant features considered in the feasibility study. <br />Consequent to the design efforts, the Branch will only conduct sufficient analysis and <br />studies as needed to define the recommended/selected plan with sufficient detail to <br />prepare the required MCACES baseline cost estimate. <br />The engineering studies and design work conducted for the selected plan will be <br />presented in an Engineering Appendix to the main feasibility study report. The extent, to <br />which the engineering studies are conducted, including level of detail, will be enough to <br />proceed directly into a PED phase soon after the feasibility study phase has concluded. <br />The only plan that will be documented in the Engineering Appendix will be the selected <br />plan. None of the alternative plans considered during plan formulation will be developed <br />or designed beyond a preliminary analysis stage. The Engineering Appendix is structured <br />following guidance found in Appendix C of ER 1110-2-1150 "Engineering and Design <br />— Engineering and Design for Civil Works Projects." The Chief of Engineering will <br />forward the compiled Engineering Appendix with funds to the District conducting the <br />ATR. Once approved by Engineering Branch, the Engineering Appendix will be <br />submitted to the Planning Branch for its use as support documentation for the main <br />feasibility study report. <br />Screening of the improvements will be accomplished by comparing a preliminary <br />monetary benefit calculated for each improvement in the economic analysis to a <br />preliminary cost for the construction of the improvement. For the Final Plan Formulation <br />Phase of the study, only one plan will be developed in enough detail to estimate the <br />baseline construction cost and the operations and maintenance cost in MCACES format. <br />The plan ultimately developed will be the plan selected by the PDT for implementation. <br />Design of the improvement's features will only be carried to the extent necessary to <br />Draft PMP — XX October 2016 <br />17 <br />