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781.0 Thornton Road,Stockton,California <br /> 1.0 OBJECTIVE <br /> Augeas Corporation was retained by Union Safe Deposit Bank to assess <br /> specific environmental concerns related to potential leakage or spillage of fuel <br /> from former underground storage tanks. These underground tanks (USTs) <br /> were used to store petroleum hydrocarbon fuels.The objective of this Prelimi- <br /> nary Investigation is to identify subsurface soil conditions and to verify the <br /> extent of any fuel contaminated soil encountered at the site. <br /> Due to the fact that detailed records related to UST use and removal could not <br /> be located, several soil borings were installed in order to obtain soil samples <br /> from below ground surface. These borings were located near the former UST <br /> area, based upon available site maps and aerial photographs. Two of the soil <br /> borings encountered soil materials resembling backfill used in typical tank <br /> installations. Since the limited soil contamination identified during-this inves- <br /> tigation is restricted to a relatively small area, no further action is proposed at <br /> this site. <br /> f� <br /> Iof9 <br /> Project Number. USDff10192 Page <br /> J:: <br />