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o No subsurface groundwater remediation system has been recommended or installed <br /> Approximately 54,000 gallons of contaminated groundwater was removed and <br /> disposed of FEstoncally, groundwater had not been significantly impacted by the <br /> former petroleum hydrocarbon soil <br /> 1 7.0 CONCLUSIONS AND RECOMMENDATIONS <br /> Excavation, natural biodegradation, and aeration successfully remediated the contaminated soil <br /> The groundwater that was impacted the most by the contaminated soil was removed and <br /> disposed of Confirmation soil samples collected in November 1993 indicated soil had been <br /> remediated to nondetectable levels Groundwater contamination has decreased to <br /> nondetectable levels since the soil was remediated Case closure is recommended <br /> w 19433Mciosm doc 8 <br /> Siam <br />