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T, j <br /> GROUNDWATER <br /> EIE:111 TECHNOLOGY O Groundwater Technology,Inc <br /> 4057 Port Chicago Highway,Concord,CA 94520 USA <br /> December 21, 1995 Tel (510)671-2387 Fax (510)685-9148 <br /> Ms Linda Turkett <br /> San Joaquin County Public Health Services <br /> 445 N San Joaquin Street <br /> Stockton,CA 95201 <br /> Subject Fourth Quarter 1995 Status Report <br /> Golden Grain Company, Manteca Bean Facility <br /> 229 Moffat Boulevard, Manteca, California <br /> GTI Project 042020190 <br /> Dear Ms Turkett <br /> On behalf of Golden Grain Company, Groundwater Technology, Inc , has prepared this Fourth <br /> Quarter 1995 Status Report for groundwater and soil conditions at the Manteca Bean Facility in <br /> Manteca, California(attachment 1,figure 1),for the quarter ending December 8, 1995 The field work <br /> included bi-monthly treatment system operation and maintenance,along with quarterly groundwater <br /> �j monitoring and sampling <br /> The groundwater monitoring and sampling results enabled evaluation of the groundwater gradient and <br /> distribution of dissolved hydrocarbons in groundwater Groundwater monitoring data and results of <br /> laboratory analyses of groundwater samples collected on November 17, 1995,are included All work <br /> was performed as described in a monitoring and sampling plan approved by San Joaquin County <br /> Public Health Services on February 27, 1992 <br /> In addition to quarterly monitoring and sampling activities,the soil and groundwater remediation system <br /> was operated and maintained during this quarter Details regarding the operation of the system <br /> through December 8, 1995, including the system efficiency and future remediation plans for the site are <br /> discussed below <br /> MONITORING WELL GAUGING <br /> Prior to well purging and water sample collection on November 17, 1995, Groundwater Technology <br /> personnel gauged all of the site wells to measure the depth to water and the depth to separate-phase <br /> hydrocarbons, if present(attachment 2, table 1) The well gauging was completed in accordance with <br /> the Leaking Underground Fuel Tank(LUFT)Field Manual published by the State of California Leaking <br /> r Underground Fuel Tank Task Force, dated October 1989 <br /> r <br /> Offices throughout the U S,Canada and Overseas <br />