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A APTIM November 20, 2019 Ms. Kendra Cope, M.S. Natural Resources Manager Indian River County Public Works 1801 27th Street Vero Beach, FL 32960 Subject: Indian River County, FL Sector 4 - Work Order 2018008-2 Critically Eroded Area Analysis Dear Kendra: Aptim Environmental & Infrastructure, LLC 2481 NW Boca Raton Blvd. Boca Raton, FL 33431 Tel: +1 561 391 8102 Fax: +1 561 391 9116 www.aptim.com This proposal outlines a scope of work for the services required to submit a request to FDEP for designation of Sector 4 as a Critically Eroded Area (CEA). Currently, there are three CEAs in Indian River County including the shorelines from R-1 to R-51.3, R-70 to R-86, and R-99 to R-115.7. Scope of Work Aptim Environmental & Infrastructure, LLC (APTIM) will develop a request to FDEP to extend the CEA from R-51.3 to R-70 to include the southern portion of Sector 3 (R-51.3 to R-55) and the majority of Sector 4 (R-55 to R-70). Historic monitoring reports and data analyzed as part of the 2019 Beach Preservation Plan update will be reviewed to support this designation. In addition, research will be conducted to see if any new information is available that meets the eligibility criteria. The following definition has been adopted by the FDEP to identify CEA eligibility: Critically eroded area is a segment of the shoreline where natural processes or human activity have caused or contributed to erosion and recession of the beach or dune system to such a degree that upland development, recreational interests, wildlife habitat, or important cultural resources are threatened or lost. Critically eroded areas may also include peripheral segments or gaps between identified critically eroded areas which, although they may be stable or slightly erosional now, their inclusion is necessary for continuity of management of the coastal system or for the design integrity of adjacent beach management projects. APTIM will conduct a simple profile recession analysis using SBEACH to see if the beach is vulnerable to over wash under 25 year or 100 year average storm conditions. This analysis will be conducted based on existing information and does not include any field investigations, complex calculations or advanced numerical modeling. The engineer may conduct a site visit if deemed appropriate in support of the request.