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SITE INVESTIGATION WORK PLAN <br /> November 1996 <br /> 1119 Roosevelt Street <br /> Stockton, California <br /> 1.0. INTRODUCTION <br /> In accordance with the request of Ms. Marge Hartman of Muller& Vail Tile Company,Advanced <br /> GeoEnvironrnental, Inc. (AGE) has prepared this Site Investigation Work Plan for the collection of <br /> soil samples at 1119 Roosevelt Steet, Stockton, California. The scope of work includes the <br /> advancement of one soil probing at the former underground storage tank (UST), location. The <br /> location of the site is illustrated in Figure 1 -Location Map. A plan of the site is illustrated on Figure <br /> 2 -Site Plan. <br /> This Work PIan is prepared in accordance with San Joaquin County Public Health Services - <br /> Environmental Health Division (PHS-EHD) and Central Valley Regional Water Quality Control <br /> Board (CVRWQCB) guidelines for the investigation of UST sites. <br /> 2.0. BACKGROUND <br /> The site is located in a flat, commercial area of eastern Stockton, California. One 500-gallon UST <br /> was removed from the site in 1988. One sample was collected from beneath the UST. Laboratory <br /> analysis of the soil sample indicated that total petroleum hydrocarbons quantified as gasoline (TPH- <br /> g) and xylenes were present in soil at the site. <br /> 3.0. SCOPE OF WORK <br /> 3.1. DRILLING AND SAMPLING <br /> AGE proposes to initially advance one soil probe boring (probing) to a depth of approximately 15 <br /> feet below surface grade (bsg). The probing will be advanced at the former UST location using <br /> AGEs Geoprobe soil probing unit. Soil samples will be collected at depths of 5 & 10 feet(bsg) from <br /> the probing. The proposed probing location is illustrated on Figure 2. <br /> 3.2. EQUIPMENT DECONTAMINATION <br /> All probing rods, sampling tools and sample liners used for sample collection will be thoroughly <br /> rinsed with clean water after washing with a solution of Alconox. <br />