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Tab 2 <br /> I� Soil Vapor Extractiowem Emission Data . <br /> ARCO Service Station#2093 - <br /> 3425 Tracy Boulevard,Tracy,California <br /> TPH as Gasoline Benzene <br /> Effluent Effluent <br /> Hour Meter Blower Average Concen- Emission Destruction Concen- Emission Destruction Is System <br /> Sample Date Reading Vacuum Flow Rate tration Rate Efficiency traticn Rate Efficiency In Compliance <br /> ID Sampled (hours) ("H2O) (scfm) (ppmv) (lbs/day) (percent) (ppmv) (lbs/day) (percent) with AQMD <br /> EFFL 12/15/99 14,957 60 72 ND 00 100% ND 0 000 100% Yes <br /> EFFL 1/26100 14,957 62 61 ND 00 100% ND 0 000 100% Yes <br /> EFFL 2116100 15,460 63 55 ND 00 100% ND 0 000 100% Yes <br /> EFFL 3115/00 15,461 60 47 ND 00 100% ND 0 000 100% Yes <br /> EFFL 4126100 16,469 50 80 ND 00 100% ND 0 000 100% Yes <br /> EFFL 5/25100 16,470 60 61 ND 00 100% ND 0 000 100% Yes <br /> EFFL 6/29100 17,022 60 51 ND 00 100% ND 0 000 100% Yes <br /> EFFL 7/27100 17,693 52 80 ND 00 100% ND 0 000 100% Yes <br /> EFFL 8128/00 17,693 50 90 ND 00 100% ND 0 000 100% Yes <br /> EFFL 9/29100 18,462 55 71 ND 00 100% ND 0 000 100% Yes <br /> EFFL 10/23/00 18,462 45 78 ND 00 100% ND 0 000 100% Yes <br /> EFFL 11/28/00 19,326 50 70 ND 00 100% ND 0 000 100% Yes <br /> EFFL 12/18/00 19,326 50 88 ND 00 100% ND 0 000 100% Yes <br /> EFFL 1116/01 20,024 48 73 ND 00 100% ND 0 000 100% Yes <br /> EFFL 2/13101 20,024 50 72 ND 00 100% ND 0 000 100% Yes <br /> EFFL c 4117/01 20,746 50 71 ND 00 100% ND 0 000 100% Yes <br /> EFFL c 5121/01 21,560 50 72 ND 00 100% ND 0 000 100% Yes <br /> EFFL 6125/01 21,560 -- - -- Yes <br /> EFFL 7/12101 21,560 -- -- -- -- -- Yes <br /> EFFL 8/17/01 21,560 -- -- -- -- Yes <br /> EFFL 9111101 21,560 -- -- - __ Yes <br /> EFFL 10/15/01 21,560 -- -- -- -- - Yes <br /> EFFL 11/16/01 21,560 -- -- - -- - - Yes <br /> EFFL 1714101 21,560 -- -- -- - -- Yes <br /> EFFL 1/15/02 21,560 -- - -- - -- Yes <br /> EFFL 218/02 21,560 -- -- - - -- - Yes <br /> EFFL 3/11/02 21,560 - - - -- -- - Yes <br /> scfm =Standard cubic feet per minute ND =Not detected <br /> ppmv =Parts per million by volume a =Prior to April 1998 data was collected and reported by Brown and Caldwell <br /> lbs =Pounds b =TPH-g and benzene concentrations reported as ND are taken as 0 ppmv for calculation purposes <br /> - =Not applicable or not analyzed c =system effluent from field FID readings <br /> TPH = Total purgeable hydrocarbons AQMD =Air Quality Management District <br /> "Hz0 =Inches of water <br /> I <br /> ARCO/2093/0&MIO&M Tables 1Q02 As Page 2 of 2 <br />