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' Final Remediation Plan <br /> Former STOCKTON PLATING <br />' 632 South El Dorado Street, Stockton, California <br />' 1.0. INTRODUCTION <br /> At the request of Mr Richard Leland,Advanced GeoEnvironmental, Inc (AGE) has prepared the <br />' enclosed Final Remediation Plan(FRP)for the site located at 632 South El Dorado Street,Stockton, <br /> California(the site) The plan details the design of a ground water extraction system and a soil vapor <br /> extraction(SVE) system for the remediation of petroleum hydrocarbon-impacts to soil and ground <br />! water at the site t <br /> The scope of the work includes advancement of four soil borings to install ground water extraction <br /> wells, initiation of a shallow ground water extraction and treatment system and initiation of soil <br /> vapor extraction to reduce the mass of adsorbed and dissolved petroleum hydrocarbons at the site <br /> The location of the site and its surroundings are illustrated on Figure 1 A plan of the site and the <br /> area of subsurface investigation are illustrated on Figure 2 <br /> This work planhas beenprepared in accordance with Central Valley Regional Water Quality Control <br /> Board(CVRWQCB)guidelines for subsurface investigation and remediation of underground storage <br /> • tank (UST) sites <br /> 2.0. BACKGROUND <br />' The site is located along Scotts Avenue in a relatively flat area of southwest Stockton, immediately <br /> south of Mormon Slough and east of the El Dorado Street overpass Local land use in the vicinity <br />' of the site is industrial and commercial Residential areas are located approximately one-quarter mile r <br /> south and east of the site <br /> 1 <br /> 21 GROUND WATER DEPTH AND FLOW DIRECTION <br /> Based on a review of the Lanes of Equal Depth to Groundwater Sprang 1998 map published by the <br /> San Joaquin County Flood Control District and Water Conservation District (FCD&WCD), the <br /> estimated depth to ground water at the site is 45 feet bsg Review of the map Lanes of Equal <br /> Elevation of Groundwater Sprang 1998(FCD&WCD)indicated that the regional ground water flow <br /> direction in the area to be towards the northwest and west Between May 1995,and the present time, <br />' depth to ground water at the site has risen from 50 feet bsg to 25 feet bsg, with a general ground <br /> water flow direction towards the east Ground water elevation contour maps for the site have been <br /> included in previous quarterly reports prepared by AGE <br /> • Advanced GeoEnvironmental,Inc <br />