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Additional Site Assessment Report <br /> NATIONAL FREIGHT <br />' 2850 Loomis Road, Stockton, California <br />' 10. INTRODUCTION <br /> At the request of Mr Dan Folcher of Vineland Construction Co ,Advanced GeoEnvironmental,Inc <br /> (AGE) has prepared this quarterly report for the property located at 2850 Loomis Road, Stockton, <br /> California(site) The location of the site is illustrated in Figure 1 A plan of the site is illustrated in <br /> 1 Figure 2 <br /> The work was performed as directed by the San Joaquin County Environmental Health Department <br /> (EHD) by letter dated 18 September 2001 (Appendix A) and is in accordance with Central Valley <br /> Regional Water Quality Control Board(CVRWQCB) guidelines for investigation of underground <br /> storage tank (UST) sites <br /> ' The purpose of the site assessment was to evaluate the lateral extent of petroleum hydrocarbon <br /> impact to soil and ground water at the site This report provides a descnption of procedures and <br /> ' results for soil boring advancement, soil sample collection and analysis and installation and <br /> development of two ground water monitoring wells <br /> ' • <br /> 2.0. BACKGROUND <br /> ' The site is located in a topographically flat area of Stockton, California (Figure 1), approximately <br /> 1,400 feet west of the intersection of Loomis Road and California Highway 99 Frontage Road <br /> 21 SITE DESCRIPTION <br /> The site is presently utilized as a truck depot for freight transportation The site consists of a large <br /> building utilized for office space and a storage yard Two 12,000-gallon diesel USTs and one 1,000- <br /> gallon waste oil UST were formerly located on the property <br /> 1 2 2 UNDERGROUND STORAGE TANK REMOVAL <br /> Two 12,000-gallon diesel USTs(Tank No 1 and Tank No 2),two fuel dispensers and all associated <br /> product piping were removed from the site on 29 September 1998 Laboratory analysis of soil <br /> samples collected beneath the diesel USTs/dispenser island area and product piping detected total <br /> petroleum hydrocarbons quantified as diesel(TPH-d) at concentrations as high as 5,100 milligrams <br /> ' per kilogram (mg/kg) Analytical results of soil samples collected during the UST removal are <br /> • provided in Table 1 <br /> Advanced GeoEnviroamental,Inc <br /> 1� <br />