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r Remedial Action Plan <br /> Village West Marina <br /> 6649 Embarcadero Drive <br /> Stockton, California 95209 <br /> t INTRODUCTION <br /> This Remedial Action Plan (RAP) presents the proposed scope of work to mitigate adsorbed- <br /> ! - phase petroleum hydrocarbon (gasoline) impaction in ground-water and in soil beneath the <br /> subject site. Bioremediation through the use of "bioventing" and "intrinsic (or `passive') <br /> remediation" are proposed to remediate soil and ground-water impaction, respectively. Although <br /> estimated costs are not listed in this document and have not yet been prepared, the <br /> methodologies are also considered the best available for this project with respect to cost- <br /> effectiveness and likely affordability. <br /> ::. <br /> Previous investigations conducted at the site have established the presence of soil and ground- <br /> water impaction by gasoline hydrocarbons. The currently known results of these investigations <br /> have been previously reported in the Problem Assessment Report and the latest Project Status <br /> Report (W.W. Irwin, Inc., August 1995; and W.W. Irwin, Inc., October 1995). <br /> The subject property is located at 6649 Embarcadero Drive in Stockton, San Joaquin County, <br /> California and is situated on the delta levee of the section of the San Joaquin River called <br /> Fourteen-Mile Slough as shown on the Vicinity Map, Figure 1. The site includes a restaurant, <br /> condominium complex, and an operational marina with the capacity to dispense fuel to pleasure <br /> craft. <br /> it <br /> SITE BACKGROUND <br /> Initial UST Removal and Sampling Activities <br /> On April 21, 1993, two 10,000-gallon capacity, leaded gasoline underground storage tanks and <br /> one 5,000-gallon capacity, diesel underground storage tank (USTs) were removed from the <br /> i'``I subject site. Evax Technologies, Inc. inspected the tanks and collected soil samples from beneath <br /> the ends of each leaded gasoline UST, and one sample from beneath the fill end of the diesel <br /> UST immediately subsequent to removal. All samples were retrieved from the floor of the <br /> excavation at 13.5 feet bsg. Additionally, two soil samples were collected from the soil <br /> stockpile flanking the excavation. The stockpile was moved to the south end of the property <br /> prior to backfill of the excavation in May 1994. <br /> �-1 <br /> 'I <br /> i <br /> W.W.Irwin, Inc. <br /> Project No. 33016.07 <br /> December 1995 1 <br /> i <br /> l <br />