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FOR <br /> 3. 1'ROIIOSI?I) REMEDIAL Al:l'EIZNA7'IVCS <br /> EA proposes to remediate clic impacted soils by in-situ soil vapor extraction using existing <br /> monitoring wells and addition:11 extraction wells to be installed that extend below the present <br /> water level. `I'gus ill^thod hats been selected because the soils that have been impacted arc deeper <br /> 111,111 can be reached froill the surfac•, by conllllon means. The groundwater will be remediated <br /> by extracting water from recovery wells on t11e site and froth a recovery well to be installed <br /> downg radient of the site. The groundwater recovery wells will be pumped at a ripe sufficient to <br /> dcwatcr the area be Heath autd downgradient of the former tank field,allowing the vapor extrtc- <br /> don systetn to effect cicnnup of soils below the present w Iter level. The groundwater will be <br /> tree.ted by air stripping;and activated carbon polishing. Doth the vapors extracted from the vapor <br /> extraction wells and the eft ll,"It from the air stripper-gill lie treated with a catalytic oxidizer to <br /> destroy benzene and other petroleum hydrocarbons, <br /> 7 <br />