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Table A-1 <br /> Soil Vapor Extraction System Performance Data <br /> ARCO Service Station#2186 <br /> 3212 N California Street,Stockton,California <br /> System Data F1D GRO Benzene MtBE <br /> Influent Influent MtBE <br /> Hour Meter Average Concen- Removal Net Removed Concen- Removal Net Removed Concen- Removal Net Removed <br /> Sample Date Reading Flow Rate Influent Midpoint Effluent tration Rate Removed to Date tration Rate Removed to Date tration Rate Removed to Date <br /> ID Sampled (hours) (scfm) (ppmv) (ppmv) (ppmv) (ppmv) (lbs/day) (pounds) (pounds) (ppmv) (lbs/day) (pounds) (pounds) (ppmv) (lbs/day) (pounds) (pounds) <br /> INFL 08/30/04 4 5 95 111 01 01 - --- <br /> ]NFL 09/07/04 94 a - 100 --- 00 390 11 74 9364 9364 <0 31 000 000 000 9 8 030 241 241 <br /> INFL 11/30/04 00 b 196 23 0 2 00 98 607 000 9364 <015 000 000 000 15 010 000 241 <br /> INFL 12/09/04 2162 109 28 0 3 01 140 483 4354 13718 <015 000 000 000 1 3 005 041 282 <br /> INFL 01/06/05 5430 118 67 00 00 140 523 71 25 20844 020 001 009 009 2 2 008 1 15 396 <br /> ]NFL 02/02/05 1,0593 125 106 03 00 130 5 15 11073 31917 <015 000 000 009 15 006 1 31 527 <br /> INFL 03/07/05 1,7996 128 155 18 5 23 150 608 18759 506 76 <015 000 000 009 0 38 002 049 576 <br /> INFL 04/11/05 2,3988 106 150 2 9 00 160 537 13412 64088 <015 000 000 009 052 002 045 620 <br /> INFL 05/12/05 3 145 6 164 96 28 1 3 130 674 20962 85051 <0 15 000 000 009 024 001 040 660 <br /> INFL 06/06/05 3,5543 126 69 00 00 140 559 9523 94573 <015 000 000 009 <014 000 000 660 <br /> REPORTING PERIOD SECOND QUARTER 2005 <br /> TOTAL POUNDS REMOVED 9457 009 660 <br /> TOTAL GALLONS REMOVED 1550 001 107 <br /> PERIOD POUNDS REMOVED 4390 000 084 <br /> PERIOD GALLONS REMOVED 720 000 014 <br /> PERIOD AVG FLOW RATE 132 <br /> scfm =Standard cubic feet per minute ppmv =Parts per million by volume -- =Not available or not applicable <br /> lbs =Pounds GRO =Gasoline Range Organics <6 3 =Less than indicated laboratory reporting limit <br /> a System shutdown due to excessive noise issues Hour meter was not working Mass removal calculations are based on the assumption that the system ran continuously between <br /> 08/30/04 and 09/07/04 at the same concentration and flow rates <br /> b System was restarted on November 30 2004 with sound enclosure and new hour meter <br /> I <br /> I <br /> 2186 O&M Tables 2005 <br /> Pana 1 of 1 <br />