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ENVIRONMENTAL AUDIT, <br /> 1000-A ORTEGA WAY PLACENTIA, CA 92870-7162 <br /> 7141632-8521 FAX: 7141632-6754 10 <br /> tOctober 10, 2000 <br /> EAI Project No 1232 <br /> 1' <br /> Marty Hartzell <br /> 1 California Regional Water Quality Control Board <br /> Central Valley Region <br /> 3443 Routier Road, Suite A <br />' Sacramento, CA 95827-3003 <br /> SUBJECT: SOIL AND GROUND WATER REMEDIATION SYSTEM REPORT <br />' THIRD QUARTER 2000 <br /> Montgomery Ward Auto Service Center <br /> 5400 Pacific Avenue, Stockton, CA <br /> Cleanup and Abatement Order No. 5-00-707 <br /> County Site Code 2163 <br /> SJVAPCD Permit Unit N-4147-1-0 <br />' Dear Mr Hartzell <br /> This report describes the activities performed at the above-referenced site during the Third <br /> Quarter 2000 to mitigate soil and ground water impacted by petroleum hydrocarbons <br /> 1 LO SYSTEM OPERATION AND MONITORING <br /> This report covers the remediation system-operating period of June 15, 2000 through <br /> September 28, 2000 The unit was operating on an on/off basis for the last month due to low <br /> concentrations of volatile organic compounds (VOCs) During the reporting period, the system <br /> operated for 1,079 hours The system was monitored on a weekly basis The field report forms <br /> indicating parameters recorded are presented in Attachment B <br /> VOCs readings from individual wells were taken on two occasions during the reporting period <br /> (see Table 1 and Figure 1) Soil vapor samples from the vacuum blower discharge and the <br /> stack were obtained on September 28, 2000, shortly after quarterly ground water monitoring <br /> had been conducted on September 19, 2000 The samples were analyzed for TPH, BTEX, <br /> MTBE, and carbon dioxide The analytical results are presented in Table 2 and Attachment A <br /> contains copies of the chain of custody records and laboratory reports The direct reading of <br /> 1 <br />' PLANNING, ENVIRONMENTAL ANALYSES AND <br /> HAZARDOUS SUBSTANCES MANAGEMENT AND REMEDIATION <br />