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APEX <br /> 11244 Pyrites Way Gail River, CA 95670 <br /> E N V I R 0 T E C H , I N C . Phone 916.851.0174 Fax 916.851.0177 Toll Free 1.800.242.4259 <br /> G <br /> October 8, 2002 IE I EC VE LDJ <br /> Ms. Dot Lofstrom HT J G 2002 - <br /> San Joaquin County Environmental Health Division <br /> P. O. Box 2009 ENVIRORMENT HEALTH <br /> Stockton, California 95201 PERMIT/SERVICES <br /> E <br /> Subject: Third Quarter 2002 Groundwater Monitoring Report <br /> Moore Petroleum Bulk Plant <br /> 5491 F Street, Banta, California E <br /> Apex Project# ERA02.004 <br /> 1 <br /> Dear Ms. Lofstrom: .. <br /> r. , <br /> i Apex Envirotech, Inc. (Apex), has been authorized by Moore Petroleum (Moore) to provide this <br /> report documenting the results of groundwater monitoring. This report covers site activities from } <br /> June 18, 2002, when the last sampling event occurred, until September 20, 2002, the last <br /> domestic well sampling event date. Groundwater monitoring results and a groundwater <br /> monitoring plan are provided in the attached figures and tables. In addition, the domestic well at <br /> 5451 F Street was sampled monthly during the quarter. Apex standard operating procedures 1 <br /> (SOPs), field data, and analytical results are provided as attachments. <br /> This report is based in part, on information obtained by Apex from Moore, and is subject to <br /> modification as newly acquired information may warrant. <br /> BACKGROUND <br /> Apex began work on this project with the groundwater monitoring conducted on January 14, <br /> 1994. Prior to Apex, .work conducted at the site included. subsurface investigations and <br /> groundwater monitoring by Earth Treatment Systems, Inc., of Manteca, California; Delta <br /> { Environmental Consultants, Inc., of Rancho Cordova, California; Nations Groundwater <br /> Associates of Sacramento, California; and Aegis Environmental, Inc. (Aegis), of Roseville, J' <br /> California. Site details may be found in the report titled, Quarterly Groundwater Monitoring 1 <br /> Report; dated April 18, 1991, submitted to Moore by Aegis. <br /> I <br /> On May 5, 1995, a soil vapor extraction (SVE) system consisting of an R.S.I. SAVE system was <br /> instdlled at the- subject site. The vapor extraction system was installed per San Joaquin Valley <br />