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I <br />' VAPOR EXTRACTION SYSTEM OPERATION <br /> 7-ELEVEN STORE <br />' 9110 THORNTON AVE <br /> STOCKTON,CA <br />' TABLE 3. <br />' MW-3 <br /> OVA Concentrations TPH ai Gas Benze9e Toluege E Be9zene Xylenjs Flow Vacuum <br /> Date (ppm as Methane) (mg/M } (mg/M ) (mg/M ) (mg/M ) (mg/M. ) (SCFM) (in H20) <br />' 1-05 140 1,500 3 5 68 10 31 -- <br /> 1-08 2,400 1,600 NA 85 37 <br /> 1-10 1,300 1,300 NA -- 44 <br /> 1-12 200 1,000 NA "- <br />' 1-16a 280 NA 75 48 <br /> 1-19 200 NA 44 <br /> 1-30 120 NA <br /> 2-05 85 NA -- <br />' 2-26 57 NA =- <br /> 3-07 46 NA 73 48 <br /> 3-14 23 NA 70 46 <br /> 3-21 23 170 NA <br /> 3-27 25 NA -- 44 <br />' 4-04b 12 60 NA __ <br /> 4-12 20 NA <br /> 4-24b 14 NA 44 <br /> 5-01c 17 NA -- -- <br /> 5-09 29 NA NA NA <br /> 5-16 28 NA <br /> 6-11 30 NA <br /> 6-19 NA NA <br /> 6-29 off NA <br />' 7-06 5.0 NA <br /> 7-25 2 2 NA <br /> 8-08 0 6 NA <br /> 8-14 0 2 NA <br />' 8-14 Ile 11 turned off - no longer used as a Vapor Extraction well <br /> a Mw-3 initially manifolded to VP's 1-4 <br /> b System off on arrival to site (Main circuit breaker thrown) <br /> c Mw-3 manifolded with mw-4, VP-2, and VP-3. Returned to original configuration 7-25 (Dedicated blower). <br /> 1 <br />' VAPOR EXTRACTION TECHNOLOGY, INC <br />