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1 <br /> CORRECTIVE ACTION PLAN <br /> March 1996 <br /> Top Filling Station <br />' 101 South Wilson Way <br /> Stockton, California <br />' 1.0. INTRODUCTION <br /> In accordance with a request from Mr Ed Endich of Top Filling Station (TFS), Advanced <br />' GeoEnvironmental Inc AGE has prepared this Corrective Action Plan CAP for 101 S Wilson <br /> (AGE) P P (CAP) <br /> Way, Stockton, California(the site) Included in the CAP are results from the installation of three soil <br /> vapor extraction (SVE) wells installed 05 through 08 December 1995, results from the installation <br /> of two ground water monitoring wells installed on I 1 December 1995 and 19 January 1996, results <br /> from a SVE test performed on 19 January 1996, and results of quarterly ground water monitoring <br /> performed on 29 January 1996 The location of the site is illustrated on Figure I -Location Map A <br /> plan of the site is illustrated on Figure 2 - Site Plan <br /> The CAP is prepared in accordance with guidelines of both the San Joaquin County Public Health <br /> Services-Environmental Health Division(PHS-EHD) and the Central Valley Regional Water Quality <br /> Control Board (CVRWQCB), for investigation of underground storage tank (UST) sites <br /> 2.0. BACKGROUND <br /> 21 SITE LOCATION <br /> The site is located at 101 S Wilson Way, on the southwest corner of the intersection of Wilson Way <br /> and Market Street, in the city of Stockton, San Joaquin County, California (Figure 1) The site is <br /> located within the northeast quarter of Section 32, Township 1 North, Range 6 East, Mount Diablo <br /> Base and Meridian The TFS operates as a gasoline dispensing station and automobile repair facility <br /> located in a topographically flat lying area of Stockton The surrounding area is utilized for residential <br /> and light industrial purposes <br /> 2 2 UNDERGROUND STORAGE TANK REMOVAL <br /> It is our understanding that two USTs were removed from the site in 1988 Soil samples were <br /> collected beneath each UST and beneath the associated piping The samples were analyzed for total <br /> petroleum hydrocarbons quantified as gasoline (TPH-g) and volatile aromatics (benzene, toluene, <br /> ethyl benzene and xylene BTE&X) TPH-g and BTE&X were detected in the soil samples collected <br /> beneath the USTs at concentrations ranging from 22 parts per million (ppm) to 2,200 ppm <br /> TFS presently utilizes two 10,000-gallon gasoline USTs at the site At least one or two abandoned <br /> UST are presently located north of the gas station office The fill port is blocked at depths of <br />