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1 <br /> Criterion S.- <br /> The <br /> .The two approaches are comparable in terms of short term effectiveness Both excavation approaches <br /> require approximately 1 week Bioremediation will require an additional 1 to 6 months to complete <br /> ' Criterion 6: <br /> Both approaches are comparable in terms of long term effectiveness The technical feasibility of <br /> excavation and bioremediation of diesel impacted soils has been demonstrated at many sites <br /> Criterion 7: <br /> Both alternatives have certain difficulties associated with supporting the excavation walls during soil <br /> removal depth of excavation and with a lack of space to store removed material (both clean and <br /> contaminated) during the process <br /> ' Criterion 8: <br /> It is believed that both approaches will receive regulatory and community acceptance The degree of <br /> disruption (visual, traffic, odors, noise) in the immediate site area is expected, however, this would <br /> be expected to last only I week It is not anticipated that this temporary disruption would result in <br /> Iloss of community acceptance <br /> ' Criterion 9. <br /> Both alternatives are comparable in terms of impacts upon water conservation <br /> I <br /> 8.1 Selected Remediation Option - Diesel <br /> ' Based on the above criteria, excavation of the diesel impacted soils in the areas of the former diesel <br /> and fuel oil tanks with on-site bio treatment or disposal to an approved solid waste facility is <br /> recommended The remediation method of the diesel impacted soils will depend upon analytical <br /> concentrations of TPHD & BTEX from samples collected from the excavated soils The most cost <br /> ' effective method will then be proposed for implementation <br /> R 042992 TIL 16 <br />