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STab of 9 <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 Influent <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) ("H20) (scfm) (ppmv) (ppmv) (ppmv) (lbs/day) (pounds) (pounds) (ppmv) (lbs/day) (pounds) (pounds) <br /> I N F L 12131/1997 7,847 a 40 65 180 95 180 47 362 2,748 - - -- <br /> INFL 5/28/1998 7,847 60 40 4,000 0 390 62 00 2,748 180 02 00 0 <br /> INFL 611111998 8,143 50 105 650 30 650 273 2068 2,955 0 6 50 50 <br /> INFL 7/811998 8,444 b -- -- - - -- 00 00 2,955 00 00 50 <br /> INFL 10/12/1998 8,444 50 65 600 0 148 04 1741 3,129 02 00 37 88 <br /> INFL 11/9/1998 8,499 50 29 1,890 382 937 11 1 2 3,131 NO 00 00 88 <br /> INFL 12/21/1998 8,690 40 29 0 0 143 17 106 3,141 ND 00 00 88 <br /> INFL 2/211999 8,881 40 27 30 2 169 02 101 3,151 04 00 00 88 <br /> INFL 3/23/1999 10,059 55 40 100 5 495 08 706 3,222 NO 00 00 88 <br /> INFL 4/15/1999 10,609 45 50 190 10 399 08 353 3,257 02 00 023 91 <br /> tNFL 5/20/1999 11,447 55 60 90 6 505 12 680 3,315 01 00 005 91 <br /> INFL 6/21/1999 11,906 50 75 30 3 13 04 321 3,347 01 00 012 92 <br /> ]NFL 7/27/1999 11,979 55 75 74 5 50 15 301 3,377 NO 00 002 92 <br /> INFL 8/18/1999 12,510 60 90 10 0 1192 07 136 3,391 NO 00 002 93 <br /> INFL 9/21/1999 13,158 60 70 5 0 303 01 389 3,430 ND 00 000 93 <br /> REPORTING PERIOD; 7/27/99 to 09/21/99 <br /> TOTAL POUNDS REMOVED 3,430 9.3 <br /> TOTAL GALLONS REMOVED 6623 13 <br /> PERIOD POUNDS REMOVED, 827 0 04 <br /> PERIOD GALLONS REMOVED, 136 00 <br /> PERIOD AVG FLOW RATE. 78 <br /> PERIOD PERCENT OPERATIONAL 88% <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 SVE system telt off on 718198 <br /> ND =Non-detectable above detection limit <br /> ppmv =Parts per million by volume <br /> TPH =Total petroleum hydrocarbons Density of benzene=7 34 pounds per gallon <br /> Density of gasoline=61 pounds per gallon <br /> 7G600-026-0230990&M Tables/TABLE 1 11/2211999 <br />