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ii <br /> F C) <br /> This may be an ideal situation for chemical remediation. Activated hydrogen peroxide <br /> could be injected below the tank and forced through the same channels in the soil used by <br /> r: <br /> the hydrocarbons. The hydrocarbons will be oxidized by the hydroxyl radicals formed by <br /> the peroxide, ultimately to carbon dioxide and water. Residual peroxide will decompose <br /> to water, thus leaving the area under the UST free of contamination. <br /> Before a remediation procedure can be developed 7 detail, it will be necessary to farther <br /> define the lateral extent of the contamination, and confirm that contamination has not <br /> reached ground water. Therefore, EI is recommending further soil sampling to define the <br /> extent of contamination further from the tank center <br /> line, and to confirm that it has not <br /> reached ground water. The tank location, inside a limits the access on the north <br /> and east sides, so that testing will Have to be limited, generally, to the two open sides. <br /> 6.ORemarks and Signatures <br /> This Report of Investigation represents Environeering Inc.'s professional judgment and <br /> opinions. These opinions are based on available client information and were developed in <br /> accordance with accepted engineering practices. Other than this, no warranty is implied <br /> or intended. <br /> Environeering, Inc. <br /> P. O. Box 2498 1 0 <br /> Danville, CA 94526 -4 <br /> 299 <br /> Reviewed by: �p <br /> �e <br /> Thomas E. Ballard, PG Date <br /> I <br /> 3 <br />