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Tabll of 2 <br /> Soil Vapor Extraction System Performance Data <br /> ARCO Service Station#2093 <br /> 3425 Tracy Boulevard,Tracy,California <br /> TPH as Gasoline Benzene <br /> FID Influent lnfluenl <br /> Hour Meter Blower Average Concen- Removal Net Removed Concen Removal Net Removed <br /> Sample Date Reading Vacuum Flow Rate Influent Effluent tration Rate Removed to Date tration Rate Removed to Date <br /> ID Sampled (hours) ('H2O) (scfm) (ppmv) (ppmv) (ppmv) (lbs/day) (pounds) (pounds) (ppmv) (lbs/day) (pounds) (pounds) <br /> INFL 08/18/99 12,510 60 90 10 0 192 0 7 136 3,391 ND 00 002 93 <br /> ]NFL 09/21/99 13,158 60 70 5 0 303 01 389 3,430 ND 00 000 93 <br /> INFL 10/05/99 13,492 60 75 15 0 16 05 240 3,454 NO 00 000 9 3 <br /> INFL 11/08/99 14,072 60 70 4 0 ND 00 1 6 3,456 NO 0 0 000 9 3 <br /> INFL 12/15/99 14,957 c 60 72 5 0 15 8 05 286 3,484 NO 00 000 93 <br /> INFL 01/26/00 14,957 c 62 61 5 0 576 01 26 3,487 00 00 002 93 <br /> INFL 02/16/00 15,460 c 63 55 2 0 158 0 3 8 4 3,495 ND 00 000 93 <br /> INFL 03/15/00 15,461 c 60 47 6 0 803 0 2 31 3,498 01 00 002 93 <br /> INFL 04/26/00 16,469 c 50 80 5 0 624 02 11 5 3,510 ND 00 000 93 <br /> INFL 05/25/00 16,470 c 60 61 12 0 103 03 85 3,518 004 00 004 93 <br /> INFL 06/29/00 17,022 c 60 51 1 0 ND 00 23 3,521 ND 00 000 93 <br /> [NFL 07/27/00 17,693 c 52 80 2 0 642 02 11 7 3,532 ND 00 002 9 4 <br /> INFL 08/28/00 17,693 c 50 90 80 0 160 67 802 3,612 284 01 1 11 105 <br /> INFL 09/29/00 18,462 c 55 71 9 0 126 04 91 3 621 010 00 003 105 <br /> REPORTING PERIOD 06/29/00 TO 10123/0o <br /> TOTAL POUNDS REMOVED 3621 5 105 <br /> TOTAL.GALLONS REMOVED 5937 1 4 <br /> PERIOD POUNDS REMOVED 2033 1 16 <br /> PERIOD GALLONS REMOVED 333 02 <br /> PERIOD AVG FLOW RATE 80 <br /> PERIOD PERCENT OPERATIONAL 100% <br /> scfm =Standard cubic feet per minute NS=Not sampled <br /> lbs =Pounds a Prior to April 1998 all data was collected and reproted by Brown and Caldwell <br /> - =Not available or not applicable b SV E system left off on 7/8198 <br /> ND =Non-detectable above detection limit c System is being pulsed(one month on,one month off) <br /> ppmv =Parts per million by volume <br /> TPH =Total petroleum hydrocarbons Density of benzene=7 34 pounds per gallon <br /> FID =Flame ionization detector Density of gasoline=61 pounds per gallon <br /> 07741928 1900&M Tables/TABLE 1 11113/00 <br />