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I <br /> 6770 South Washington AVOILIC, SuiteGeosYntee Titusville, Florida <br /> 32780 <br /> PH 321 269. i880 <br /> Consultants FAX 321 , 269, 5813 <br /> 16 April 2009 <br /> Mr. Lynn Williams <br /> Superintendent <br /> Indian River County Building and Grounds <br /> 1840 25 "i Street <br /> Vero Beach , Florida 32960 <br /> Subject : Professional Services Proposal <br /> UST Closure and AST Installation Support <br /> Indian River County Sheriff' s Administration Building <br /> 4055 41 " Street <br /> Vero Beach , Ff. 32960 <br /> Dear Mr. Williams : <br /> Geosyntec Consultants ( Geosyntec ) is pleased to submit this fee proposal to Indian River County <br /> ( IRC ) for professional services associated with the closure of two , 10 , 000 gallon steel <br /> underground storage tanks ( USTs ) and the electrical connections for two , IRGsupplicd, 500- <br /> gallon Convault aboveground storage tanks ( AST) equipped with dispenser pumps and delivered <br /> with pre- cast slabs at the IRC Sheriff' s Department Headquarters . It is Geosyntec ' s <br /> understanding that the 10 , 000 gallon USTs has been used for the storage of unleaded gasoline , <br /> exclusively. The scope of work described below has been developed in accordance with Florida <br /> Department of Environmental Protection ( FDEP ) Storage Tank System Closure Assessment <br /> Requirements and Chapter 62 - 761 , Florida Administrative Code ( FAC ) . An overview of the <br /> work completed to date and the proposed project scope follows . <br /> OVERVIEW <br /> Geosyntec performed groundwater sampling in the four monitoring wells surrounding the <br /> 10 , 000 - gallon USTs in June 2007 . The groundwater sampling was performed to assess whether <br /> the USTs have potentially had a detectable release of petroleum compounds to groundwater. The <br /> laboratory analytical results , presented in a letter report dated 23 July 2007 , did not detect any <br /> petroleum constituents above groundwater cleanup target levels ( GCTLs) . Based upon these <br /> results , it does not appear that the USTs are compromised or that a release of petroleum <br /> compounds has occurred . Accordingly, the scope of work developed for the site assumes that the <br /> XR091 I WCCR09040 , DOC <br /> cI1l;ittccrS 1 S ( IWlilist5 in ) tov ; ttors <br />