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Revised Corrective Action Plan <br /> January 1997 <br /> 4648 East Waterloo Road, Stockton, California <br /> 1.0. INTRODUCTION AND SCOPE OF WORK <br /> In accordance with a request from Mr Jonathan Marlowe of Marlowe Properties, Advanced <br /> GeoEnvironmental, Inc (AGE), has prepared this Revised Corrective Action Plan (CAP) for 4648 <br /> East Waterloo Road, Stockton, California The site and its surroundings are illustrated in Figure 1 - <br /> Location Map Structures and monitoring wells on the site are illustrated in Figure 2 - Site Plan <br /> The scope of work was to evaluate the feasibility and cost aspect of several remedial action <br /> alternatives for hydrocarbon-impacted soil and ground water at the site The CAP was prepared in <br /> accordance with guidelines established by the San Joaquin County Public Health Services - <br />' Environmental Health Division (PHS-EHD) and the Central Valley Regional Water Quality Control <br /> Board (CVRWQCB) for investigation of underground storage tank (UST) sites <br /> I <br /> 20. BACKGROUND <br /> I• <br /> 21 SITE LOCATION AND DESCRIPTION <br /> The site is located on the south side of East Waterloo Road, east of Highway 99, in a rural/industrial <br /> area of low topographic relief east of Stockton, Cal-fornia The site is in Section 53, Township 2 <br /> North, Range 7 East, of the Mount Diablo Base and Meridian A large warehouse, a small office <br /> building, two fenced storage yards and a parking/delivery area are present on the site <br /> 22 PREVIOUS INVESTIGATIONS <br /> The following is a brief summary of previous investigations at the site <br /> • On 04 January 1988, one 550-gallon gasoline UST was excavated and removed from the site <br /> Total petroleum hydrocarbons quantified as gasoline (TPH-g) were detected in soil samples <br /> collected beneath the UST Analytical results of soil samples are summarized in Table 1 - <br /> Analytical Results Of Soil Samples <br /> • On 07 July 1988, one soil boring (B-1) was advanced northwest of the former UST area to <br /> 34 feet below surface grade (bsg) and one ground water monitoring well (B-2/MW-1) was <br /> installed to 80 feet bsg southwest of the former UST location Petroleum hydrocarbons were <br /> not detected in soil samples collected from B-1, however, TPH-g was detected in both soil <br /> . and groundwater samples collected from MWA Analytical results of soil and groundwater <br /> samples are summarized in Table 1 and Table 2 - Analytical Results Of Ground Water <br />