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GROUND ZERO ANALYSIS, INC. <br /> 1714 Main,Street <br /> Escalon,California 95320-1927 <br /> Telephone: (209)838-9888 <br /> Facsimile: (209)838-9883 <br /> SAN JOAQUIN COUNTY PUBLIC HEALTH <br /> ENVIRONMENTAL HEALTH DIVISION <br /> 304 E WEBER AVE 3RD FL <br /> February 15, 2000 STOCKON CA 95202 <br /> ENVIRONMENTAL HEALTH DIVISION <br /> 304 E. Weber Ave. Third Floor <br /> Mr. Harlin Knoll P. O. Box 388, Stor;kton CA 95201-0388 <br /> San Joaquin County Public Health Services Approved $� <br /> Environmental Health Division Denied Q <br /> d <br /> Thir Floor <br /> 304 East Weber Avenue, d,_ Conditions ; <br /> �..1 c f <br /> Stockton, CA 95202 Date 1 ov by <br /> Subject: Workplan Addendum for Interim Soil and Groundwater Corrective Action <br /> Former Sunnyside Produce <br /> 8960 W. Walnut Grove Road, Thornton, A ` <br /> i <br /> Dear Mr. Knoll: <br /> Ground Zero Analysis, Inc. (Ground Zero) submits this report on behalf of Mr. Mike Manser to <br /> present a workplan for interim remediation of contaminated soil and groundwater at the subject site. <br /> The location of the site is shown on Figure 1. <br /> 1.0 INTRODUCTION <br /> 1.1 Purpose <br /> The purpose of the proposed work is to minimize the t eat to groundwater posed by contaminated I` <br /> soil resulting from leaking underground storage tans and to reduce the volume of affected <br /> groundwater. <br /> 2.0 BACKGROUND INFORMATION <br /> 2.1 Initial Investigation and UST Removal <br /> The site formerlyoperated as a convenience store and retail gasoline station. A limited ,[ <br /> P <br /> subsurface assessment was conducted by Ground Zero in December 1996. Results of the �I <br /> assessment provided evidence that petroleum hydrocarbon impact to the soil and groundwater <br /> 11GZA FSISYSIData1GROLTNDZEIMANSERIManser 2linterimwp.dor <br />