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i <br /> Table 1 Soil Vapor Extraction and Treatment Sys Onfluent Hata,ARCO Station 434,Lodi,California <br /> s , <br /> Start-up date 613191 ' <br /> Sample Average flow Days in Down days Percent Influent concentration ppmv(a) Removal rate,lbs/day Net n.inovaI lbs&gallons <br /> date Period rate,cfm period in period operational TPH-G B TPH-G B TPM-G B <br /> 512!94 4112194-512/94 61 20 0 100% 280 <0016 6 0 128 lbs 0 lbs <br /> 617194 512194-6127/94 62 56 0 100% 110 <0016 3 0 141 lbs 0 lbs <br /> 716194 6127194-716194 62 9 0 100% 210 <0016 5 0 44 lbs 0 Ibs <br /> 8116194 7/6194-8116194 62 41 3 93% 261 19 6 0 230 lbs 0 Ibs <br /> 919/94 8/16/94-9/27/94 63 42 1 98% 230 <0016 5 0 221 Ibs 0 Ibs <br /> 10/4/94 9127194-10/4/94 62 7 0 100% 130 <0007 3 0 21 Ibs 0 Ibs <br /> 1113/94 !014/94-11/3194 62 30 1 97% 340 <0083 8 0 228 lbs 0 Ibs <br /> 1219194 11/3/94-12127194 62 54 2 96% 110 <0012 3 0 132 Ibs 0 lbs <br /> 116/95 12127194-1118/95 60 22 37 83% 76 0 035 2 0 31 Ibs 0 lbs <br /> 2IN95 1/18/95-2/13195 53 26 161 38% 140 11 3 0 28 Ibs 0 lbs <br /> 317/95 2113/95-3/16/95 55 31 32 90% 89 018 2 0 51 lbs 0 Ibs <br /> 415195 3116/95-415195 60 29 0 100% 24 0 1 0 16 IUs 0 lbs <br /> 5111195 (b) 415/95-5111195 20 36 22 39% 33 0 0 0 3 Ibs 0 Ibs <br /> 5118195 5/11/95-5118195 20 7 0 100% 66 0 0 0 3 Ibs 0 lbs <br /> 5/26195 5/18/95-5126195 20 8 0 100% 80 0 1 0 5 lbs 0 Ibs <br /> 6/21195 5126/95-6/21/95 22 26 0 100% 44 0 0 0 9 Ibs 0 Ibs <br /> 7!8195 6121195-718195 22 17 0 100% 77 <016 l 0 11 lbs 0 lbs <br /> 8122/95 718195-8122/95 22 45 0 100% 54 <016 0 0 20 lbs 0 lbs <br /> 9/11195 8/22195-9111/95 22 20 0 100% 68 <016 l 0 11 lbs 0 lbs <br /> 12/31/95 9111/95-12131/95 22 111 97 13% 0 SYSTEM TURNED OFF ON 9125195 0 lbs 0 lbs <br /> Totals and averages 111/96-3131196 0 0 0 0% NA NA 0 0 0 Ibs 0 lbs <br /> for reporting period 0 gals 0 gals <br /> Totals and averages 6/3/91-12131195 81 1681 210 88% 1112 5 42 0 50832 lbs 153 Ibs <br /> cumulative 8199 gals 21 gels <br /> Sample calculations <br /> Removal rate calculation <br /> lbs/day—(gmlmole)*(umole/mole)*(moles/]0E+6 umoles)*(10E+3 mg/gm)*(1 177 mote/cubic feet)*(2 204640E-6lb/mg)*(60 mtn/hr)*(cubic feet/mm)*(24 hrslday) <br /> where(gm/mole)is molecular weight,(umoles/mote)is ppm influent concentration,molecular weights of TPH G and Benzene are 100 2 and 78 1,respectively <br /> For pounds cumulative removal we used the removal lb/day result and multiplied it by the difference in the number of days between the current and previous sampling event <br /> Gallons removal calculation(for TPH) <br /> gallons removed—Ibs* allon/dens ity to Ibs(density for TPH-G is 6 2,benzene is 7 32) <br /> (a)From start-up through lune 1992 influent samples were not taken because there was no sample tap on the inlet to the catalytic oxidizer <br /> Therefore,the influent concentrations(in parts per million by volume)are an estimate <br /> (b)The cadytic oxidizer was taken off-line and replaced with a biofiller system on 5/11/95 <br />