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ENV:P1"I`t 91q'TA1_ HIFAs TH <br /> It <br /> ❑❑� GROUNDWATER In2 JI-IFl 25 PM 124 <br /> ❑�❑ TECHNOLOGY, INC. 4057 Port Chicago Highway Concord CA 94520(415)6 71 2387 <br /> FAX (415)685 9148 <br /> June 15, 1993 <br /> Project Number 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 Second Quarter 1993 Status Report <br /> Manteca Bean Facility <br /> 229 Moffat Boulevard, Manteca, California <br /> Dear Ms Turkett <br /> This letter has been prepared by Groundwater Technology, Inc on behalf of Golden Grain Company <br /> as Second Quarter 1993 Status Report on groundwater and sod conditions at the Manteca Bean <br /> Facility in Manteca, California, for the quarter ending June 1993 The purpose of the field work was <br /> to conduct treatment system operation and maintenance, calculate the groundwater gradient, and <br /> evaluate the distribution of dissolved hydrocarbons in groundwater Groundwater monitoring data <br /> and results of laboratory analyses of groundwater samples collected on May 14, 1993, are included <br /> All work was performed as described in a monitoring and sampling plan submitted to, and approved <br /> by, Sin Joaquin County Public Health Services on February 27, 1992 <br /> In addition to quarterly monitoring and sampling activities, the soil and groundwater remediation <br /> system continued to operate during this quarter until May 14, 1993 On May 14, 1993, Groundwater <br /> Technology personnel found the treatment system had experienced an automatic shutdown during <br /> the previous 24-hour period Following a system check, it was determined that the shutdown was <br /> caused by a blown fuse During the normal restart procedures, the catalytic oxidizer experienced an <br /> internal equipment malfunction while preheating At that time, a root-cause analysis was performed <br /> System modifications were identified to prevent recurrence of this malfunction Repairs are presently <br /> being undertaken and should be completed by the end of June Groundwater Technology will notify <br /> your office before the system restart following repair Details regarding the operation of the system <br /> through May 14, 1993, including the efficiency of the system and the continued remediation plans for <br /> the site, are discussed below <br /> 2379ROl 070 <br /> Offices throughout the U 5 Canada and Overseas <br />