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i <br /> Table 1 - Summary ileal of VESIhe • <br /> Analytical Data <br /> Unocal Service Station No 6981 <br /> 4707 Pacific Avenue <br /> Stockton, California <br /> Wellhead Influent Sam le Results Effluent Sample Results <br /> Date TPHg TPHg Benzene Benzene Toluene Ethylbenzene Xylenes TPHg TPHg Benzene Benzene Toluene Ethylbenzene Xylenes <br /> (mg/m) (ppmv) (mg/m� (ppmv) (mglm� (mg/m) (mglm) (mg/m) (PPmv) (mg/m) (p mv) (mg/m") (mg/m) (mg/m) <br /> 09-22-94 5,800 1,529 153 44 452 66 227 <11 <3 0 108 <0 03 0 152 <0 109 0 109 <br /> 10-07-94 4,350 1,147 132 38 493 37 118 <11 <3 0108 <003 <0 ill <0 109 <0109 <br /> 11-08-94 5,220 1,376 164 47 238 26 118 <I1 <3 0 l08 <0 03 <0 lit <0 109 <0 109 <br /> 12-11-94 4,100 1,081 57 16 320 58 220 74 20 0 060 0 02 12 1 1 6 4 <br /> 01-09-95 6,100 1,609 99 28 640 120 560 160 42 0 83 0 24 15 57 29 <br /> 01-22-95 System shut down for modification from thermal to catalytic mode <br /> 05-16-95 7,600 2,004 130 37 580 96 330 510 134 10 2 87 30 2 9 <br /> 84 <br /> 05-23-95 System shut down due to destruction efficiency less than 95% <br /> 12-19-95 1,000 264 20 6 28 3 11 <10 <3 <0 050 <0 01 0 11 <0 050 0 0089 <br /> 01-24-96 5,700 1,503 56 16 540 89 440 15 4 <0 10 <0 03 <0 10 <0 10 010 <br /> 02-26-96 1,500 396 <10 <3 120 20 93 58 15 <0 10 <0 03 030 <0 l0 3 1 <br /> 03-26-96 1,800 475 <I0 <3 I50 30 150 26 7 <0 10 <0 03 <0 10 <0 10 0 71 <br /> 04-23-96 1,600 422 <0 10 <0 03 160 38 180 <10 <3 <0 10 <0 03 <0 10 <0 10 059 <br /> 05-28-96 1,300 343 <20 <06 96 34 170 33 9 <0 10 <0 03 <0 10 <0 10 0 19 <br /> 06-25-96 3,200 844 <10 <3 210 89 480 16 4 <0 I0 <0 03 0 29 0 10 057 <br /> 07-30-96 7,700 2,030 <10 <3 460 250 1,500 62 16 0 14 0 04 2 l 14 9 8 <br /> 08-30-96 6,800 1,793 <10 <3 490 170 1,100 1,400 369 <10 <029 67 37 270 <br /> 09-25-96 5,300 1,398 <10 <3 160 140 1,000 15 4 <010 <003 013 <010 1 l <br /> 10-28-96 1,900 501 <5 0 <1 40 45 310• 18 5 <0 10 <0 03 0 1.3 0 I3 0 68. <br /> 11-21-96 220 58 <0 50 <0 1 7 6 2 5 11 s 12 3 0 11 0 03 0 21 0 12 0870 <br /> 12-20-96 1,600 422 <1 0 <03 29 16 76 'r 38 10 <0 10 <0 03 <0 10 0 16 <br /> 01-29-97 1,000 264 <50 <1 4 it 27 180 <10 <3 <0 10 <0 03 <0 10 <0 10 <0 l0 <br /> 02-27-97 1,500 396 <1 0 <03 3 4 32 260 100 26 <0 50 014 <0 50 0 66 <br /> 03-01-97 System down due to mechanical problems <br /> mg/m3 = milligrams per cubic meter <br /> ppmv=parts per million by volume <br /> TPHg =Total Petroleum Hydrocarbons as gasoline <br /> d/unocall4855/6981RPT XLS <br /> 785520-2 <br />