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P. <br /> �i <br /> 1 .0 INTRODUCTION <br /> The Matheson Fast Freight facility is located on the <br /> southwest corner of East Walnut Street and South Main Street <br /> Fi in Lodi , as indicated on the Site Vicinity Map (Plate 1) . <br /> The former underground storage tanks were located to the <br /> west of the site building. The approximate locations of the <br /> tank cavity and site features are shown on the Generalized <br /> F+ Site Plan, Plate 2 . <br /> F! <br /> 2 .0 PREVIOUS WORK <br /> 2 . 1 l R emoy al <br /> PRAMCON, of West Sacramento, California conducted tank <br /> removal operations in May, 1990 . No representative of the <br /> FLodi Fire Department was present during tank removal ; Ms . <br /> F! <br /> Casey Foley of the San Joaquin Local Health District (SJLHD) <br /> was present at the site during tank removal and inspection, <br /> loading <br /> of the tank for transport and soil sampling . RAMCON <br /> was responsible for permit acquisition, arranging for <br /> k disposal of the tanks, and notification of the appropriate <br /> F` authorities . <br /> The tanks were removed from the tank excavation using a <br /> crane and soil was excavated from the tank cavity with a <br /> backhoe. Soil sample S-8 . 5-1 collected from below the <br /> former waste oil tank at an approximate depth of 8 . 5 ft <br /> F1below grade, or roughly 2 ft below the base of and below the <br /> fill port of the former tank. The sample was collected by <br /> Fil driving a clean brass sleeve into undisturbed native soil at <br /> the base of the excavation below the former tank using a <br /> hand-operated drive sampler equipped with extender rods . <br /> The tank was spherical and was of single--walled steel <br /> F construction; no evidence of holes or unusual corrosion were <br /> observed on the outer surface of the tank. No evidence of <br /> F! soil contamination was noted in the sample or in the walls <br /> FROGER FOOTT ASSOCIATES, INC. <br /> -1- <br />