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v � <br /> Work Plan Addendum <br /> November 1997 <br /> BURKHARDT PROPERTY <br /> 5154 Hogan Lane, Lodi, California <br /> 1.0. INTRODUCTION <br /> In accordance with the request of Mr. Kelly Olsen,Advanced GeoEnvironmental, Inc. (AGE) has <br /> prepared this Work Plan Addendum for 5154 Hogan Lane in Lodi, California. The objective of this <br /> investigation is to determine the lateral and vertical extent of hydrocarbon-impacted soil west of the <br /> former gasoline underground storage tank (UST) area. Initially, the scope of work includes the <br /> advancement of one soil probe boring, the collection of soil samples and sampling of the on-site <br /> domestic water well. <br /> A preliminary site investigation was performed by AGE in December 1995. Details of the initial <br /> investigation were included in the Preliminary Investigation and Evaluation Report (PIER) dated <br /> 26 February 1996, prepared by AGE. The location of the site is illustrated in Figure 1 - Location <br /> Map. A plan of the site is illustrated on Figure 2 -Site Plan. <br /> This Work.PIan Addendum is prepared in accordance with San Joaquin County Public Health <br /> Services-Environmental Health Division(PHS-EHD) and Central Valley Regional Water Quality <br /> Control Board guidelines for the investigation of underground storage tank(UST) sites. <br /> 2.0. BACKGROUND <br /> 2.1. SITE LOCATION AND DESCRIPTION <br /> The site is located at 5154 Hogan Lane southeast of Lodi, in San Joaquin County, California, cast <br /> of Highway 99 between Harney Lane and Armstrong Road. The site is in the southwest quarter of <br /> Section 19,Township 3 North, Range 6 East, Mount Diablo Base&Meridian (MDB&M). Land use <br /> in the immediate vicinity of the site is rural residential/agricultural. <br /> The site is occupied by one residential housing structure, one garage parking structure and one <br /> domestic water well pump housing structure. The former gasoline UST area is located between the <br /> garage parking structure and the water well pump house (Figure 2). <br /> 2.2. UNDERGROUND STORAGE TANK REMOVAL <br /> It is our understanding that one gasoline UST and one diesel UST were removed from the site in <br /> 1992. Soil samples were collected from beneath both USTs and analyzed for total petroleum <br /> hydrocarbons quantified as gasoline and diesel (TPH-g and TPH-d), volatile aromatics (benzene, <br /> Advanced GeoEnvironmental,Inc. <br />