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5.0 CONCLUSIONS AND RECOMAMNDATIONS <br /> The absence of detectable concentrations of gasoline and aromatic constituents in soil samples analyzed <br /> from the confirmatory soil borings provide conclusive evidence that soil vapor extraction has been very <br /> effective in removing adsorbed phase gasoline from subsurface soils in the vicinity of the former USTs. <br /> It is SEACOR's opinion that the gasoline-affected soils in the vicinity of the former USTs have been <br /> ' adequaely remediated and that groundwater underlying the Site is no longer at risk. This conclusion is <br /> further supported by the absence of detectable concentrations of petroleum hydrocarbons in groundwater <br /> directly underlying and downgradient from the former USTs. <br /> On the basis of these findings and previous investigation efforts, SEACOR recommends no further <br /> investigation or remediation of the Site. SEACOR respectfully requests that the SJCPHS recommend <br /> closure for this Site. Once Site closure has been approved, SEACOR recommends the three existing <br /> groundwater monitoring wells be abandoned in accordance with state and county requirements. <br /> 1 <br /> CONFMM.PIT <br /> 50014-005-01 8 <br /> I <br />