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Table 15 <br /> Apartment Soil Vapor Extraction System-Operating Data <br /> Parcel 2A-L&M OU <br /> 666 West Weber Avenue,Stockton,CA <br /> VOCs Vapor <br /> Well Field Operating System Flow FID VOC FID VOC (Hexane) Control <br /> Hourmeter Temp Temp Vacuum Rate Influent Effluent Removed Efficiency <br /> Date Notes Reading(hours) (°F) (°F) (in Hg) (scfm) (ppmv) (ppmv) (Ib/day) M <br /> 11/15/2011 4,174.7 60.0 651 5.1 233.0 8.0 0.0 0.4 100% <br /> 12/15/2011 4,894.0 55.0 648 5.4 196.4 7.0 0.0 0.6 100% <br /> 1/19/2012 5,733.4 53.4 651 5.2 177.2 9.0 0.0 0.5 100% <br /> 2/28/2012 6,262.2 70.5 646 5.2 279.4 0.0 0.0 0.4 100% <br /> 3/16/2012 6,672.1 58.8 652 5.9 244.4 5.0 0.0 0.2 100% <br /> 3/29/2012 6,908.1 <br /> 4/6/2012 i 6,909.3 261.9 <br /> 4/20/2012 6,910.4 67.4 652 5.4 233.5 1,168.0 5.0 48.3 100% <br /> 5/8/2012 7,339.3 65.2 646 5.7 230.5 0.0 3.0 46.5 <br /> 6/22/2012 7,563.8 74.2 648 5.4 230.9 42.9 0.3 1.6 99% <br /> 7/12/2012 8,042.3 71.0 650 5.6 231.8 401.5 0.0 17.8 100% <br /> 8/15/2012 8,254.9 129.1 651 5.3 212.8 8.0 3.0 15.6 63% <br /> 9/21/2012 8,606.1 76.0 654 4.8 243.1 0.0 0.0 0.2 100% <br /> 10/19/2012 8,902.0 76.0 649 4.4 295.0 20. 0.0 0.9 100% <br /> 11/28/2012 9,581.1 62.2 650 4.9 219.6 0.0 0.0 0.9 100% <br /> 12/21/2012 j 9,638.2 -- <br /> REPORTING PERIOD: September 21,2012 to December 21,2012 <br /> Period Operation(hours): 1,032 <br /> Period Operational(%): 47% <br /> Historical%Operational: 74% <br /> Definitions: <br /> °F=Degrees Fahrenheit VOC=Volatile Organic Compounds <br /> inHg =Inches of mercury ppmv =Parts per million by volume <br /> acfm =Actual cubic feet per minute SJAVOCD=San Joaquin Valley Air Pollution Control District <br /> scfm =Standard cubic feet per minute ATC=Authority to Construct <br /> [ ] =Indicates reference to equation =Not collected or not measured <br /> FID=Flame Ionization Detector <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 =Hourmeter malfunction.ASVE hours estimated based on L&M OU SVE system runtime. <br /> h =New hourmeter installed on 4/13/11 <br /> I =System flow not recorded. Average of last two consecutive flows used. <br /> j =System shutdown due to combustion blower malfunction on December 7,2012. System left off pending repairs;samples unable to be collected. <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 /> 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 Page 2 of 2 <br />