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Alk <br />APTIM <br />June 22, 2022 <br />Eric Charest <br />Coastal Division <br />Indian River County Public Works <br />1801 27th Street <br />Vero Beach, FL 32960 <br />Subject: Indian River County, FL <br />Amendment No. 1 to Work Order 2018008-03 <br />Dear Eric: <br />Aptim Environmental & Infrastructure, LLC <br />6401 Congress Avenue, Suite 140 <br />Boca Raton, FL 33487 <br />Tel: +1 561 391 8102 <br />Fax: +1 561 391 9116 <br />www.aptim.com <br />Sebastian Inlet Technical Advisory Committee Sediment Budget Analysis <br />This proposal is in response to a work order amendment request for Aptim Environmental & <br />Infrastructure, LLC (APTIM) to provide technical assistance to the County in the review and development <br />of a sediment budget for the Technical Advisory Committee (TAC) meetings for the Sebastian Inlet. This <br />additional work will be added to the current scope of work as Task 3. <br />Task 3: Sediment Budget Development <br />APTIM will develop a sediment budget to detail sediment transport through two additional cells within <br />Indian River County. APTIM will utilize the County's database of historic survey data to develop the <br />sediment budget to support discussions in regards to potential inlet impacts at the third TAC meeting. <br />APTIM will review and utilize the Sebastian Inlet District's consultants previously developed sediment <br />budget as needed throughout the analysis. <br />Deliverable <br />A detailed sediment budget in the form of a figure will be developed showing pathways of sediment <br />transport within Indian River County. The sediment budget will be finalized prior to the third TAC meeting. <br />Schedule & Assumptions <br />The sediment budget will be finalized prior to the third TAC meeting currently schedule for August 24, <br />2022. <br />Cost <br />The total lump sum cost to perform the additional work described herein is $7,620. The scope and fee <br />were developed following the provisions of the Continuing Services Contract Agreement for Continuing <br />Engineering Services 2018008 (dated April 17, 2018 and amended May 18, 2021) between Indian River <br />County and APTIM. <br />Thank you for the opportunity to serve Indian River County. Please do not hesitate to call if you have any <br />questions. <br />66 <br />