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Table 19 <br /> Soil Vapor Extraction System-Operating Data <br /> Parcel 2A- L&M OU <br /> 666 West Weber Avenue, Stockton, CA <br /> VOCs <br /> Hourmeter Well Field Operating System Flow FID VOC FID VOC (Hexane) <br /> Reading Temperature Temp Vacuum Rate Influent Effluent Removed Vapor Control <br /> Date Notes (hours) (°F) (°F) (inHg) (scfm) (ppmv) (ppmv) (Ib/day) [2] Efficiency(%) <br /> Notes: <br /> -Column under heading VOC(Hexane)Removed(Ib/day) added 2Q10 to track removal rate of total VOCs. <br /> a=VOC reported as Hexane(molecular weight 86.17)for VOC vapor mass removal rate calculation. Hexane was used <br /> because it was most representative of the lower carbon range organics. <br /> b=System inspected by the air board and started on 5/31/2007. <br /> c=Vapor flow data collected as SCFM. <br /> d =Flow rate(acfm)derived from Roots 56 curve with temperature being the average for the system. <br /> e=Flame Out <br /> f=System switched to operate in catalytic mode. <br /> g =System shutdown due to combustion blower malfunction on December 7,2012. System left off pending repairs;samples unable to be collected. <br /> h =VOCs measured with PID on this date. <br /> i =VOCs emission calculated to be less than 2 lbs per day <br /> j =System shutdown on 10/16/13 due to DPE system LEL malfunction;samples could not be obtained. <br /> Equations: <br /> VOC Removed/day= <br /> [Avg of consecutive(Inf-Eff)Conc(ppmv)/1,000,000]X[86.17(g/mole)]X[1 lbs/453.59 g]X[1.2641 moles/1 cf]X[Avg of consecutive flow rates(scfm)]X[60 min/hr]X[24 hr/day] <br /> Tstd Temperature at standard conditions(530 Rankine) <br /> Pabs Atmospheric pressure at standard conditions minus manifold vacuum(inHg) <br /> Pat,„Atmospheric pressure at standard conditions(29.92 inHg) <br /> T Manifold vapor temperature reading(°F) <br /> Permits: <br /> Air emissions are permitted under SJVAPCD ATC Number N-4878-2-0. <br /> V:\1857\active\tidewater\185750217_tidewater_Stockton_p2a\05_report_deliv\drwgs_designs\tables\O&M Tables 2014\3Q14\Parcel <br /> 2A OM Tables 3Q14.xlsx <br />