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Mr. Arjuna Weragoda, P.E <br />March 14, 2019 <br />Page 5 <br />Task 7 (future scope) — Conceptual Design <br />Based on the assessment competed above, an assumed area available for development will be <br />established, maximum berm height Will also be established, resulting in and assumed maximum <br />reclaimed water storage capacity. Design criteria will be provided by IRC to compete the <br />conceptual design for the reclaimed water storage. Additional scope will be prepared for this <br />task upon completion of the above summary. The conceptual design will also include a probable <br />cost estimate for the design, permitting and construction of the conceptual water storage facility. <br />PROJECT SCHEDULE <br />The approximate duration noted for each task is based on our current understanding and best <br />estimates of time required to perform the basic services and maybe subject to change upon <br />agreement between Indian River County and Tetra Tech. <br />Task <br />'Bowline <br />Notice to Proceed (NTP) <br />March 26, 2019 <br />_Draft Summary Reportand Skype Meeting with the County <br />June 4, 2019 <br />County Comments on Draft Summary Report to Tetra Tech <br />June 8,2019 <br />Final Summary Report to the County <br />June 12; 2019 <br />ASSUMPTIONS <br />Tetra Techs scope of services and project costs were developed, with the following assumptions: <br />• Tetra Tech willreview available data provided by Indian River County. <br />Surveying services are not included. <br />• Ecological and geotechnical data for this stage of the project is incomplete for the final,: <br />design and.permitting. Additional ecological and. geotechnical,investigation will be <br />required to complete the final design.. <br />• A limited:Phase II ESA scope of work (soil sampling and analysis) is provided based on <br />known site:conditions to reduce mobilization costs and project timeline:however, <br />• additional Phase II ESA activities may be required and proposed based on Phase .I ESA <br />findings. <br />•. Tetra,Tech assumes IRC will provide .reasonable access to the site for drilling activities <br />and Phase I ESA :site: walk. <br />• Design criteria will be provided by IRC to competethe conceptual design for the <br />reclaimed water storage facility. Unless otherwise indicated, the proposed reclaimed <br />water storage facility will consist of a lined; ring -dike system: <br />• IRC will provide sufficient information•in order to size the proposed reclaimed water <br />storage facility. • <br />TETRA TECH <br />