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Kennedy/Jenks Consultants • Familiarizing personnel with health and safety protocols • Observing that field personnel wear appropriate personal protective equipment • Recording data from direct reading instruments and evaluating potential hazards • Monitoring decontamination procedures • Recording the occurrence of any site injury or illness If unsafe conditions are encountered, if illness or injury occurs, or if the level of protection needs to be changed, the SSO or FSSO will consult in a timely manner with the Project Manager, Gerry Nakano, or the Regional Safety Supervisor, Bert Drews 3.0 SITE DESCRIPTION AND HISTORY 3 1 102 S. Wilson Way, Stockton, California. The site was a gasoline service station predating 1936 when the station including equipment, fixtures, gasoline pumps, and two-550-gallon underground gasoline storage tanks were purchased by the Caffese family in 1936 In 1947, the site was purchased by the Knowles family, and continued to be operated as a gasoline service station with underground storage tanks In 1977 the site was purchased by Pepsi-Cola Bottling Company As reported in a City of Stockton Fire Prevention Bureau Tank Removal Permit, two-7500 gallon gasoline tanks were removed from the site at 102 S Wilson Way, Stockton, CA in December 1978 After removal of the tank, the excavation was backfilled to grade and paved The site was subsequently purchased in 1985 by our current client In April 1988, a site assessment consisting of three soil borings was conducted by Balbi- Chang Associates (BCA) to determine the presence or absence of petroleum hydrocarbon soil contamination at this site Soil containing a maximum of 196 mg/kg of Total Petroleum Hydrocarbons (TPH) was found at a depth of two feet in the area of the tank excavation during this site work In an attempt to remediate this site, sods were excavated to a depth of about 3 feet and stockpiled on site The open excavation and soil stockpile remain at this time BCA's April 1988 site assessment was performed without regulatory agency approval and oversight, therefore an approved, follow-up investigation was conducted in April 1989 This work consisted of four additional soil borings which indicated the presence of trace to non-detectable levels of petroleum hydrocarbon constituents Three of the four borings were converted into monitoring wells MW2 contained BTXE concentrations between 3 to 13 mg/I The other two wells contained trace to ND levels of BTX&E and TPH. 1: Two other site investigations were conducted by Leedshill-Herkenhoff (LH) in January 1990 and September 1990 This site work resulted in a total of 8 additional soil borings S1 3 910557 00