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,WoAtn,?to west1re Nature <br /> 3164 Gold Camp Drive, Suite 200 <br /> Rancho Cordova, CA 95670 <br /> Phone (916) 852-6690 <br /> Fax (916) 852-6688 <br /> February 8, 1994 <br /> Mr Scott Hooton <br /> BP Oil Company <br /> North Western Division <br /> 16400 South Center Parkway, Suite 301 <br /> Tukwila, Washington 98188 <br /> Subject Limited Subsurface Investigation <br /> BP Facility 11191 <br /> 1469 East Hammer lane, Stockton, California <br />•� Mr Hooton <br /> At the request of BP Oil Company (BP), RESNA Industries Inc (RESNA) conducted a <br /> limited subsurface investigation at the subject site (Plate 1) Work included drilling one soil <br /> boring near the southern region of the northwestern dispenser island The purpose of this <br /> investigation was to confirm the presence of residual hydrocarbons detected in soil boring <br /> B-4 near the southwest end of the northwestern dispenser island <br /> BACKGROUND <br /> During December 1992, four soil borings were drilled at the site Groundwater was not <br /> encountered in the soil borings Gasoline hydrocarbons were detected in soil samples <br /> collected from boring B-4, near the southwest end of the northwestern dispenser island <br /> Benzene concentrations ranged from 0 025 to 0 088 parts per million Concentrations of <br /> total petroleum hydrocarbons as gasoline (TPHg) were below laboratory detection limits <br /> 1117shoo/123013 01 <br />