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TABLE 4 TPH DESTRUCTION AND REMOVAL EFFICIENCY <br /> Montgomery Ward Auto Service Center <br />' 5400 Pacific Avenue, Stockton, CA <br /> Soil Vapor to Oxidizer Combustion Gases DRE Total <br /> Date Hours Flow TPH Flow TPH Removed <br /> scfm(,) ug/L lb/day(�) sefm13) ug/L lb/day %(4) lb(5) <br /> 10/07/99 3 281 1 14,450 365 22 281 1 305 771 9789 46 <br /> 12/21/99 415 207 5 5,747 10723 267 5 23 0 55 9948 4,101 <br /> 03/28/00 1771 213 1 408 7 82 321 1 ND 000 9999 7,351 <br /> 06/15/00 2835 1932 384 667 340 2 ND 000 100 7,672 <br /> 09/28/00 3914 2006 800 1443 318 6 66 0 19 9869 8-14611 <br /> Notes <br /> (1) Calculated based on field data <br /> (2) TPH lb/day= flow scfm * TPH ug/L *10 6(g/ug)*1440 (min/d)*2 205*10 3 (lb/g) <br /> (3) Calculated based on field data <br /> (4) DRE % _ (TPH Ib/day- Combustion Gases TPH lb/day)/TPH lb/day*100 <br /> (5) Total Removed (Current lb/day+Previous Ib/day)/2/24 hr/day*Current Hours <br /> ug/L - micrograms per liter <br /> scfm - standard cubic feet per minute (at 14 7 psia and 60 0F) <br /> lb/day- pounds per day <br />' DRE - destruction and removal efficiency <br /> TABLE 5. BENZENE REMOVAL AND DESTRUCTION EFFICIENCY <br /> Montgomery Ward Auto Service Center <br /> 5400 Pacific Avenue, Stockton, CA <br /> Soil Vapor to Oxidizer Combustion Gases DRE Total <br /> Date Hours Flow Benzene Flow Benzene Removed <br /> scfm(,) ug/L lb/day(2) scfiu", ug/L lb/day %(4) lb <br /> 10/07/99 3 281 1 2,400 60 66 281 1 ND 000 100 76 <br />' 12/21/99 415 2075 42 078 267 5 0 45 001 9862 535 0 <br /> 03/28/00 1 1 1 1 21.3 1 096 0 02 321 1 ND 000 9999 5576 <br /> 06/15/00 2835 1932 0 50 000 3402 ND 000 100 5580 <br /> 09/28/00 3914 2006 1271 0 02 318 6 ND 000 100 558 5 <br /> For Notes see Table 3 <br />' 1232 AO 1RXLS <br />