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BlaeS Envoo nmemal Managemew Lie U Haul#709 50 <br /> 002-70950 04 Groundwater Monitoring Report <br /> 03/27/02 <br /> 1 0 INTRODUCTION <br /> This ieport presents a summary of activities and results of the groundwater monitoring program <br /> conducted during the first quarter of 2002 (March 4-6, 2002) at U-Haul Facility #709-50 located at 2701 <br /> North Wiison Way in Stockton, California The report presents a background of site conditions and a <br /> brief summary of the procedures and results for the most recent groundwater monitoring event <br /> 1 1 SITE LOCATION AND DESCRIPTION <br /> U-Haul Facility 709-50 is located at 2701 North Wilson Way on the northwest comer of the intersection <br /> of North Wilson Way and Sanguinetti Lane in Stockton, California (Figure 1) The site is situated in a <br /> commercial area and is currently used as an equipment storage and rental facility The site is generally <br /> flat with a slight grade to the southeast The site elevation is approximately 21 feet above mean sea level <br /> A general site plan is included as Figure 2 <br /> 12 PROJECT AUTHORIZATION <br /> In January 1999, Blaes Environmental was contracted by Amerco Real Estate Company/U-Haul <br /> International (U-Haul) to conduct a soil and groundwater remediation program at the site The <br /> remediation program included developing a remedial action plan (RAP), conducting remedial testing, and <br /> performing quarterly groundwater monitoring and reporting Prior to initiating remedial activities at the <br /> site, the San Joaquin County Environmental Health Department (SJC) requested several additional <br /> groundwater monitoring events to confirm the concentration of petroleum hydrocarbons and to further <br /> evaluate the extent of the hydrocarbon plume in groundwater at the site <br /> 13 PROJECT STATUS <br /> In November 2001, Blaes Environmental submitted a work plan to the SJC detailing proposed work for <br /> the site The work plan proposes the installation of three new nested wells to further delineate the extent <br /> of hydrocarbons in groundwater to the east, west and south of the site In addition, two remedial test <br /> wells (one air sparge wells and one nested vapor extraction well) were proposed near the former western <br /> dispenser island Following installation of the additional wells, remedial feasibility studies will include a <br /> 1 <br />