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WALLACE • KUHL€r ASSOCIATES,INC <br /> GEOTECHNICAL CONSULTANTS CONSTRUCTION TESTING <br /> I _ December 11, 1989 <br /> CLEC 08.1989 <br /> PVlRON Ail NEAW <br /> ER1/IC:ES <br /> Post Tank <br /> Attention: Jeff Post <br /> P.O._BOX 657 <br /> West Sacramento, California 95691 <br /> SOILS SAMPLING AND TESTING <br /> -�. WOOLSEY OIL, INC. <br /> 166 Frank West Circle <br /> Stockton, California <br /> WKA No. 89-194.3 <br /> r <br /> We have completed a sampling and testing program for soil samples obtained during removal of <br /> the subsurface fuel tanks at the subject property. The scope of our work included sampling of soils <br /> at locations beneath the tanks shown on Plate 1. Additionally, three composite samples (PT 10 <br /> Comp. 1, 2 and 3) of the soil excavated during'removal of Waste Oil Tank #10 and a soil sample <br /> beneath the pipeline (PP Line) were obtained at the request of the San Joaquin County inspector. <br /> All samples were obtained by driving clean, two-inch diameter brass tubes into the soil; sample <br /> tubes were sealed with aluminum foil, plastic caps and wrapped with tape to mitigate volatile <br /> hydrocarbon loss. <br /> Samples were preserved on ice and transferred under chain-of-custody to a California certified <br /> analytical laboratory for the following analyses: <br /> • total petroleum hydrocarbons (TPI) <br /> • benzene, toluene, xylene and ethyl benzene (BTX&E) <br /> • organic'lead <br /> • ethylene dibromidc (EDB) <br /> • halogenated solvents (EPA 8010) <br /> • PCBs <br /> • EPA priority pollutant metals. <br /> i <br /> 2742 INDUSTRIAL BOULEVARD•PO BOX 1137•WEST SACRAMENTO,CA 95691 •(916)372-1434•FAX(916)372.2565 <br />