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Table 18 <br /> Soil Vapor Extraction System-Operating Data <br /> Parcel 2A-L&M OU <br /> 666 West Weber Avenue,Stockton, CA <br /> VOCia <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 /> Equations: <br /> VOC Removed/day= <br /> [Avg of consecutive(Inf-Eff)Conc(ppmv)/1,000,000]X[86.17(g/male)]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 /> Patm Atmospheric pressure at standard conditions(29.92 inHg) <br /> T Manifold vapor temperature reading(°F) <br /> Permits: <br /> it emissions are permitted under SJVAPCD ATC Number N-4878-2-0. <br /> I:\Tidewater\TW Stockton(P2A)\Engineering\O&M\Tables\O&M Tables 2012\4Q12\Parcel 2A OM Tables 4Q12.xlsx <br />