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%Wol 1..� LW Remedial Action Work Plan TRACY MARINE SALES 2353 Toste Road, Tracy, California 1.0. INTRODUCTION At the request of Mr. Joe Toste, Jr., Advanced GeoEnvironmental, Inc. (AGE), has prepared this Remedial Action Work Plan(RAWP)for 2353 Toste Road,Tracy,California(the site).The location of the site is illustrated in Figure 1. A plan of the site is illustrated in Figure 2. The purpose of this RAWP is to summarize the preliminary investigation and evaluation of the `o subsurface release on the site, to describe the lateral and vertical extent of the impact of fuel components to soil and ground water and to provide procedures and rationale for installation of a soil �. and ground water remediation system at the site. This RAWP was prepared in accordance with guidelines established by the Regional Water Quality Control Board - Central Valley Region (RWQCB) for preliminary investigation and evaluation of underground storage tank (UST) sites. 2.0. BACKGROUND The site is located approximately 200 feet southwest of the intersection of Toste Road and West Grantline Road in the western portion of Tracy, California (Figure 1). Two USTs and associated u.. piping and dispensers were removed from the site on 31 October 1996. La 2.1. SITE LOCATION AND DESCRIPTION The site is located in a commercial area of low topographic relief in the western portion of Tracy, California,adjacent to Highway205(Figure 1).A large showroom/office structure for boat sales and repair is located on the property. Structures, monitoring well and domestic well locations are illustrated on Figure 2.In addition,former dispenser island,UST and piping locations are illustrated on Figure 2. LM 2.2. UNDERGROUND STORAGE TANK REMOVAL ,0 Two USTs were removed from the site on 31 October 1996(Figure 2). The dispensers and product line were removed during excavation of the USTs. Both tanks and associated dispenser had been utilized for gasoline. After being removed, the tanks were visually inspected and appeared to be intact, with no holes or extensive corrosion noted. Total petroleum hydrocarbons quantified as gasoline (TPH-g), purgeable aromatics including .� benzene,toluene,ethylbenzene and total xylenes(BTE&X)and methyl tertiary-butyl ether(MTBE) were present in each of the samples analyzed at concentrations as high as 3,400 milligrams per kilogram(mg/kg)of TPH-g,21 mg/kg of benzene,320 mg/kg of toluene, 13 mg/kg of ethylbenzene, tr Advanced GeoEnvi ron mental,Inc.