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�7 Table 1 <br /> Sod Vapor Extraction System Performance Data <br /> Unocal Service Station 2859 <br /> 1665 Pacific Avenue <br /> Stockton California <br /> TPPH as Gasoline Benzene <br /> Influent Influent Influent Influent <br /> Hourmeter Flow Concen- Concen- Removal Removed Concen- Concen- Removal Removed <br /> Sample Date Reading Rate tration tration Rate to Date tration tration Rate to Date <br /> ID Sampled (hours) (scfm) (Ng/L) (ppmv) (lbs/day) (Ibs) (Ng/L) (ppmv) (lbs/day) (Ibs) <br /> INFL 01/17/96 a 1984 47 7,500 1,773 3168 00 77 22 033 000 <br /> INFL 02/12/96 1,986 51 3,800 898 1742 20 28 81 013 002 <br /> INFL 03/13/96 2,284 72 2,100 496 1359 1945 50 b ND 003 1 02 <br /> INFL 04/09/96 2,568 103 2,500 591 2314 4119 10 b ND 009 176 <br /> INFL 05/02/96 2,892 120 1,400 331 1510 6700 5 0 b ND 005 274 <br /> INFL 06/06/96 3,676 61 1,100 260 603 1,0151 26 0 75 001 386 <br /> ]NFL 07/10/96 4,287 72 300 71 1 94 1 1166 20 b NO 001 420 <br /> INFL 07/30/96 4,586 104 3 400 804 31 78 1,3266 14 40 013 510 <br /> INFL 08/29/96 5,140 70 2 400 567 1510 1,8677 12 35 008 748 <br /> INFL 09/06/96 5,237 86 3,000 709 2319 1,9450 12 35 009 782 <br /> INFL 10/03/96 5 710 75 2,200 520 1483 2,3196 11 32 007 946 <br /> [NFL 10/23/96 6,100 80 2 400 567 1726 2 580 3 18 52 013 11 12 <br /> INFL 11/06/96 c 6,303 80 3,000 709 21 57 2,7445 10 29 007 1197 <br /> REPORTING PERIOD. 09/06196-11/06/96 (cj <br /> iTOTAL,POUNDS REMOVED. 2,744.3 11.97 <br /> TOTALGALLONS REMOVED. 450 1.6 <br /> PERIOD POUNDS REMOVED 799 5 416 <br /> PERIOD GALLONS REMOVED: 131 0 6 <br /> TOTAL DAYS OF OPERATION. 180.0 <br /> PERIOD DAYS OF OPERATION- "A <br /> PERIOD AVERAGE FLOW RATE(scfm) 78 <br /> PERIOD PERCENT OPERATIONAL. 79% <br /> TPPH =Total purgeable petroleum hydrocarbons <br /> scfm =Standard cubic feet per minute <br /> ppmv = Parts per million by volume <br /> Ibs =Pounds <br /> ND =Not detected above the detection limit <br /> a SVE system started 1117/96 and sampled,shutdown pending receipt of permit to operate <br /> b Concentrations reported as ND use the detection limit to calculate mass removal and emission rates <br /> c SVE system temporarily shut down <br /> Concentrations shown in ppmv are calculated from micrograms per liter,as reported by the laboratory <br /> See certified analytical reports for detection limits <br /> 3100405A14Q96QPR XLS A-2 <br /> February 4, 1997 <br />