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t <br /> r= �,, ~" ' jar='�1_Tfi <br /> ❑❑ <br /> GROUNDWATER <br /> ❑❑❑ TECHNOLOGY, INC. 4057 Port Chicago Highwav,Concord CA 94520(415)6712387 <br /> FAX (415)685-9148 <br /> January 6, 1994 <br /> Project No 020703879 <br /> Site Code 2155 <br /> Ms Linda Turkett <br /> San Joaquin County Public Health Services <br /> P 0 Box 2009 <br /> 445 N San Joaquin Street <br /> Stockton, CA 95201 <br /> SUBJECT Fourth Quarter 1993 Status Report <br /> Manteca Bean Facility <br /> 229 Moffat Boulevard, Manteca, California <br /> Dear Ms Turkett <br /> On behalf of Golden Grain Company, Groundwater Technology, Inc has prepared this Fourth <br /> Quarter 1993 Status Report on groundwater and sod conditions at the Manteca Bean Facility in <br /> Manteca, California (Attachment 1, Figure 1), for the quarter ending December 1993 The purpose of <br /> the field work was to perform treatment system operation and maintenance, calculate the <br /> groundwater gradient, and evaluate the distribution of dissolved hydrocarbons in groundwater <br /> Groundwater monitoring data and results of laboratory analyses of groundwater samples collected <br /> on November 11, 1993, are included All work was performed as described in a monitoring and <br /> sampling plan submitted to, and approved by, San Joaquin County Public Health Services on <br /> February 27, 1992 <br /> In addition to quarterly monitoring and sampling activities, the soil and groundwater remediation <br /> system was operated and maintained during this quarter Details regarding the operation of the <br /> system through December 2, 1993, including the efficiency of the system and the continued <br /> remediation plans for the site, are discussed below <br /> MONITORING WELL GAUGING <br /> Before well purging and water sample collection on November 11, 1993, Groundwater Technology <br /> personnel gauged all of the site wells to measure the depth to water and the depth to separate- <br /> phase hydrocarbons (SP), if present The well gauging was conducted in accordance with the <br /> Leaking Underground Fuel Tank (LUFT) Field Manual published by the State of California Leaking <br /> Underground Fuel Tank Task Force dated October 1989 <br /> 3879R023 070 <br /> Offices throughout the US Canada and Overseas 1 ~O <br />