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Remedial Well and Soil Vapor Extraction System Installation Report 8 Ranch Market 23569 South Santa Fe Road Riverbank CA November 27 2002 6.3 SVE System Startup On September 26, 2002, the SVE system was started to check all system parameters and tune the catalytic oxidizer and ozone generator settings System influent and effluent air samples were collected in the presence of a SJVAPCD inspector to confirm the system was in compliance with the Authority to Construct permit conditions The air samples were sent to a California state-certified laboratory for analysis of TPHg, BTEX, and MtBE Laboratory results, summarized in the table below, indicated the system was in compliance and the SJVAPCD provided verbal approval to begin continuous system operation Constituent(ppmv) Sampling Port TPHg Benzene Toluene Ethyl- Total MtBE benzene Xylenes INFL 2,200 49 70 9 6 70 <0 40 EFFL <5 0 013 020 <0 050 0.22 <0 10 ]Explanations TPHg=Total petroleum hydrocarbons as gasoline MtBE=Methyl tert-butyl ether TPHg BTEX MtBE via EPA Method 8260B Ppmv=Parts per-million by volume 6.4 Ozone Injection System Status The ozone injection skid was damaged during shipping and required replacement of the project logic control panel and several system status indicator lines The damage components were replaced and the initial system start was attempted on October 21, 2002 During start-up several leaks were discovered in the stainless steel line from the ozone generator and within the manifold SECOR has scheduled a technician from ARCE Systems, Inc to repair the leaks and bring the system online on November 19 and 20, 2002 Start-up of the ozone injection skid will be summarized in the 4'" Quarter Monitoring and Sampling Report that will be completed in January 2003 11Ranch Market-Riverbank\ReportslRB-Remed Well Install doe SECOR International Incorporated