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Exhibit A from the Mean High Water (MHW) elevation on each island to a sufficient distance waterward of the shoreline as required for dock permitting and potential re -contouring of the shorelines. This task may also include research for projected project elements associated with wetland design or recreational elements. The information from the additional data collection and research may be used to guide and inform the CLIENT on project design based on feasibility or cost issues. Deliverables for this task will be data to be incorporated into the Development of Project Plans (Task 5). TASK 5 —DEVELOPMENT OF PROJECT PLANS The ENGINEER will develop project plans based on the following process: • A preliminary site grading plan will be developed based on the Conceptual Plan. • A hydraulic analysis of flow volumes and characteristics to analyze nutrient removal potential (with input from CLIENT) will be completed using flood routings, pond sizing, discharge calculations, and drawdown analysis based on the Conceptual Plan. • The ENGINEER will coordinate with the CLIENT to assess the need for pumps and/or other infrastructure to facilitate/mimic tide fluctuations and maximize treatment of Lagoon waters. A 30% design plan will be submitted for review by the CLIENT. The ENGINEER will refine the assessment of vegetative community acreages and earthwork balance, as well as the information on potential construction costs based on various phasing and construction alternatives. • Based on the plan review and assessment of project costs and phasing, the ENGINEER will work with the CLIENT to develop a set of 60% design plans. These plans will be used to complete the Regulatory/Stakeholder Engagement of the project. Feedback from these additional meetings will be incorporated into the 90% design plans, as appropriate. • The ENGINEER will develop 90% project plans to include earthwork plan sheets, detail sheets, and cross-sections; planting lists (with the assistance of County staff); proposed project phasing; mobilization and staging locations; land clearing/exotics removal; erosion control plan(s) utilizing best management practices and erosion control devices; schematics of proposed recreational and educational structures (to be designed based on project funding and schedule); and infrastructure details including any pump station performance criteria for manufacturing design and construction. • A final public meeting will be held at this stage of the project to solicit feedback on the design. • Following the completion of the final public meeting, the ENGINEER will make any C:\Users\sandyw\AppDatalLocaRMicrosoft\Windows\Temporary Internet Files\Content.OutlookU132PHUR\2020_02_CarterProposal_Lost Tree Island RFQ 2020008.doc Page 5 of 8 ©2020 by CAI