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+- n Bt ASSOClat4M W. <br /> February 22,2012 <br /> ■ <br /> Suite 200 <br /> 445 244,Street <br /> lVlr.Roland DeBlois,AICP Vero Beach,Floft <br /> Chief,Environmental Planning 329$0 <br /> 180127th Street <br /> Vero Beach,FL 32960-3388 <br /> Re: Professional Services Agreement <br /> Shadowbrook Estates,Inc.Site <br /> Dear Roland: <br /> Kimley-Horn and Associates, Inc. (WHA"or"Consultant") is pleased to submit <br /> this letter agreement (the "Agreement') to Indian River County ("Client") for <br /> providing Professional Environmental Services. <br /> Project Understanding <br /> Indian River County has been engaged in the on-going assessment and <br /> remediation of the former Shadowbrook Estates, Inc. Site. On July 14,2011,the <br /> Florida Department of Environmental Protection(FDEP)commented on the April <br /> 2011 Site Assessment Report Addendum prepared by Geotechnical and <br /> Environmental Consultants, Inc. (GEC) According to the FDEP, additional <br /> assessment of the ground water quality is necessary at both the Northeast Grove <br /> and the Southwest Grove areas on the Site. Additionally,the FDEP has requested <br /> an evaluation of the surface water quality of the canal west of the Southwest <br /> Grove area. <br /> On February 13,2012,Kimley-Horn and Associates,Inc.(KHA)and Indian River <br /> County met with the FDEP to discuss the additional assessment work necessary to <br /> satisfy the FDEP's July 14, 2011 comment letter. The Department provided the <br /> following comments regarding the Northeast and Southwest Grove areas: <br /> Northeast Grove <br /> • The extent of the soil impacts has been delineated;however,the proposed <br /> remedial action has not been undertaken. GEC proposed the excavation <br /> and removal of a minimum of 400 cubic yards of arsenic-contaminated <br /> soil. However, in based on the end use of the Site as conservation land, <br /> the FDEP suggested calculating alternative soil cleanup target levels for <br /> arsenic based on the proposed land use. <br /> ATTACHMENT � <br /> TEL n2 794 4100 <br /> FAX n2 794 4130 <br /> 74 <br />