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)>12 <br />APTIM <br />September 7, 2021 <br />Mr. Eric Charest <br />Indian River County <br />Public Works - Coastal Division <br />1801 27th St. <br />Vero Beach, FL 32960 <br />Subject: Indian River County, FL <br />Sector 5 — 2018029 — Work Order #7 <br />Dune Vegetation Services <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 />This proposal outlines a scope of work for Aptim Environmental & Infrastructure, LLC (APTIM) to provide <br />professional services to Indian River County (the County) in support of dune vegetation services for the <br />Sector 5 Beach and Dune Restoration Project (R-70 to R-86) in Indian River County, which was <br />completed in February 2020. <br />The scope of work described herein is to support the County by developing a dune vegetation plan that <br />will enhance the Sector 5 project by providing additional dune vegetation services. The tasks to perform <br />this work are listed below and described on the following pages. A breakdown of the hours and expenses <br />to develop the cost is attached. The scope and fee was developed following the provisions of the <br />Professional Services Agreement between Indian River County and APTIM, dated April 3, 2018, to <br />provide engineering and biological support services in support of the Sector 5 Beach and Dune <br />Restoration Project (RFQ# 2018029). <br />Task 1. Dune Vegetation Design, Plans & Specifications Updates <br />Scope of Work <br />The County has requested that the density of the dune vegetation currently in place be doubled. APTIM <br />engineers and biologists will develop a dune vegetation planting plan to maximize the number of plants <br />that can fit in the recently constructed dune with a design that promotes growth and survivability. Dune <br />vegetation is proposed for the entire length of the dune project. Dune vegetation will provide additional <br />storm damage protection by stabilizing the constructed dune and enhance the aesthetic quality of the <br />dune. Dune vegetation also traps windblown sand, which promotes natural dune growth. Vegetation will <br />be planted on the slopes and crest of the new dunes. Plants used in the vegetation design will be native <br />salt tolerant dune species common to the east coast of Florida. Dune vegetation will be designed using <br />native plants that adheres the Florida Department of Environmental Protection (FDEP) guidelines to <br />assist in maintaining the integrity of the dune and reduce erosion. <br />APTIM will update the construction plans and technical specifications that will provide the necessary <br />details to the Contractor to construct the project, establish payment criteria, and adhere to the permit <br />conditions. It is assumed that the front-end documents will remain the same and the technical <br />IRC Sector 5 — 2018029— WO#7: Dune Vegetation Services <br />