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v <br /> Ik- <br /> //PAI'1 ' <br /> O'twt �1 11244 Pyrites Way•Gold River,CA 95674 <br /> L E IV V I R 0 T E C H , I N C <br /> 851.0174 Fox.916.851.0177• Toll Free 1.800.242.5249 <br /> c,�Shone916. <br /> s <br /> March 8, 2005 2. 0 <br /> ry <br />{ <br /> Mr. Nuel Henderson ' .1 <br /> San Joaquin County Environmental Health Department <br /> 304 E. Weber Avenue, Third Floor <br /> Stockton, California 95202 <br /> 4 <br /> '4 <br /> Subject: Interim Results Report for Ozone Sparge Well Installation <br /> Moore Petroleum Bulk Plant <br /> 5491.F Street, Banta, California <br /> Apex Project #ERA02.004 <br /> ' V <br /> i <br /> Dear Mr. Henderson: r <br /> Apex Envirotech, Inc. (Apex), has been authorized by Moore Petroleum (Moore) to provide this <br /> interim results report pertaining to the addition of ozone sparge wells to the remediation system <br /> at the subject site (Figure 1 and 2). Groundwater monitoring and sample collection has been <br /> " performed quarterly since the installation of the current soil vapor extraction (SVE) remediation F <br /> system. All work was conducted in accordance with directives from the San Joaquin County <br /> Environmental Health Department (SJCEHD) in a letter dated May 12, 2004 (Appendix A). <br /> This report is based in part, on information obtained by Apex from Moore, and is subject to F <br /> r <br /> modification as newly acquired-information may warrant. <br /> BACKGROUND <br /> January 14, 1994 - Apex began work on this project with groundwater monitoring. Prior to <br /> Apex, work conducted at the site included subsurface investigations and groundwater monitoring <br /> by Earth Treatment Systems, Inc., of Manteca, California; Delta Environmental Consultants, Inc., <br /> ' of Rancho Cordova, California; Nations Groundwater Associates of Sacramento, California; and <br /> Aegis Environmental, Inc. (Aegis), of Roseville, California. Site details may be found in the <br /> report titled, Quarterly Groundwater Monitoring Report, dated April 18, 1991, submitted to <br /> { Moore by Aegis. <br />