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Table A-f Soil Vapor Extraction System Performance Data • Time Oil Lockeford Site 14000 E Highway 88 Lockeford California TPH as Gasoline (Benzene FID Influent Influent Hour Meter Ambient Blower Influent Concen Removal Net Removed Concen Removal Net Removed Sample Date Reading Dilution Vacuum Flow Rate Influent Effluent tration Rate Removed to Date tration Rate Removed to Date ID Sampled (hours) Valve (H2O) (scfm) (ppmv) (ppmv) (ppmv) (lbs/day) (pounds) (pounds) (ppmv) (lbs/day) (pounds) (pounds) INFL 12/13/99 7 863 1 a 6%0 3 154 10 000 20 6 900 0 0 0,0 Start Up 1570 00 00 Start Up INFL 01/25/00 8 821 0 5%0 20 156 1 900 10 3 990 2492 4 972 6 4 972 6 330 1 6 321 32 1 INFL 02/22/00 9 208 6 10%0 20 313 1,000 5 2 460 3082 4 501 1 9 473 7 338 33 397 71 8 INFL 03/13/00 9 378 6 15%0 10 204 1910 1 2 960 2417 1 9478 11 421 5 270 17 178 896 INFL 04/13/00 9 394 4 1%0 161 1701 2 990 5 3 810 2594 1650 11,5865 245 13 1 0 906 INFL 05/03/00 9 823 2 4%0 121 1017 1 490 5 2 820 1148 3 343 3 14 929 8 31 4 10 205 111 1 INFL 06114/00 10 831 6 3%0 98 1471 795 0 5 080 299 1 8 696 5 23 626 3 375 17 572 1683 INFL 08/09/00 10,8541 2%0 202 131 X10 000" 2 2 330 1221 1975 23 823 8 31 7 13 14 1697 INFL 09/14/00 11 5234 C 201 1879 690 0 1 120 842 2 877 8 26 701 6 72 04 240 1937 INFL 10/19/00 12 031 3 C 389 1897 345 0 1 260 95 7 1 903 9 28 605 5 633 04 844 2022 INFL 11/07/00 12 350 9 C 181 1837 298 0 895 65 8 1 075 4 29 680 9 439 03 418 206 3 INFL 12/20/00 12 774 2 D - - INFL 01/17/01 12 922 0 C 30 1921 475 0 379 291 1 1299 30 810 9 1 11 01 379 210 1 INFL 02/21/01 13 762 0 C 40 1912 293 0 10 08 6155 31 4264 NO 00 117 211 3 INFL 03/14/01 13 928 4 C 25 1848 475 4 430 31 8 1129 31 5393 22 04 14 2126 INFL 04/18/01 14 764 5 C 30 1947 375 0 520 405 1 260 0 32 799 3 6 8 00 68 2195 INFL 05/17/01 15 352 4 C 25 1924 275 5 110 85 6002 33 399 5 NO 05 59 2254 INFL 06/13/01 15,7976 C 25 1914 400 20 440 337 391 3 33 790 7 8 0 00 48 2302 INFL 07/11/01 16 393 5 C 30 1915 450 0 310 238 7136 34 504 3 06 00 04 2306 INFL 08/15/01 17 232 5 C 25 1513 400 30 330 200 7648 35,2691 NO 00 00 2306 INFL 09/05/01 17 682 5 C 25 191 3 400 30 490 375 5392 35 808 3 ND 00 00 2306 INFL 10/10/01 18,3313 C 30 1385 300 0 360 200 7769 366852 NO 00 00 2306 INFL 11/28/01 19 001 4 C 20 18B7 375 40 110 8 3 3946 36 979 8 ND 01 12 231 8 INFL 12/12/01 19 339 2 C 25 1612 325 0 280 181 1856 37 165 4 1 5 00 06 2325 I# 01/02/02 19 709 4 C 25 1613 210 10 190 11 5 2281 37 393 5 NO 00 00 2325 02/06/02 20 474 5 C 90 537 2 700 50 270 58 2759 37 669 5 NO 00 00 2325 INFL 03/06/02 21 1458 C 100 532 1 100 40 170 3 6 1318 37 801 3 NO 00 00 2325 INFL 04/09/02 21 804 9 C 95 523 650 O 610 128 2251 38 026 4 NO 00 01 2326 ]NFL 05/01/02 22,2760 C 100 527 350 25 130 2 7 1523 38 178 7 052 00 01 2327 INFL 06/25/02 23,0436 D - - - — INFL 07/23/02 231843 C 75 642 650 6 360 9 3 2270 38 405 6 ND 00 03 232 9 INFL 08/06/02 23 520 1 C 75 61 7 600 20 170 4 2 941 38 499 7 07 00 01 2330 W FL 09/03/02 24,200 9 10%0 50 521 575 20 260 5 4 1365 38 636 2 NO 0 0 00 2330 REPORTING PERIOD 04/1102 to t)ra/30/02 TOTAL POUNDS REMOVED 38,6362 233 0 TOTAL GALLONS REMOVED 6,3338 31 7 PERfOD POUNDS REMOVED 457 6 0 4 110'E"1010 GALLONS REMOVED' 75 0 01 P1100 AVG FLOW RATE 69 RIOD PERCENT OPERA11ONAL 100% scfm =Standard cubic feet per minute NS=Not sampled Ibs =Pounds a System startup,initial air samples taken NA =Not available or not applicable '= FID(flame Ionization detector)reading (Flame Out) NO =Non-detectable above detection limit Please note No samples were taken In July because the remedlation system was down ppmv =Parts per million by volume,converted from micrograms C=dilution air valve is closed per liter,assuming TPH as gasoline and benzene vapor D=System is down due to repair/maintenance density Is 0 278 and 0 217 lbs per cubic foot,respectively Density of benzene=7 34 pounds per gallon TPH =Total Petroleum Hydrocarbons iDensfty of gasoline=6 1 pounds per gallon • 770T 41737 00 00021revised 03-02 Lockeford O&MTables/TABLE A 1