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Table A 1 Soil Vapor Extraction System Performance Data Time Oil Lockeford Site 14000 E Highway 88 Lockeford California TPH as Gpsoline 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) tNFL 12/13/99 7 863 1 a 6%0 3 154 10,000 20 6,900 00 00 Start Up 1 1570 00 00 Start Up INFL 01/25/00 8,821() 6%0 20 156 1,900 10 3 990 2492 4 972 6 4 972 6 330 1 6 321 321 INFL 02/22/00 9 208 6 10%0 20 313 11000 5 2,460 3082 4 501 1 9,473 7 338 33 397 71 8 INFL 03/13100 9,3786 15%0 10 204 1910 1 2,960 2417 1 947 8 11 4215 270 17 178 896 INFL 04/13/00 9 394 4 1%0 161 1701 2,990 5 3,610 2594 1650 11,5865 245 13 10 906 INFL 05/04/00 9 823 2 4%0 121 1017 1 490 5 2,820 1148 3 343 3 14,9298 314 10 205 111 1 INFL 06/14/00 10,831 6 3%0 98 1471 795 0 5 080 2991 8 696 5 23 626 3 375 17 572 1683 INFL 08/09/00 10B54 1 2%0 2o2 131 X10,000' 2 2 330 1221 1975 23 823 8 317 13 14 1697 INFL 09/14/00 11,5234 C 201 1879 690 0 1,120 842 2 877 8 26,7016 72 04 240 1937 INFL 10/19/00 12 031 3 C 389 1897 345 0 1 250 957 1 9039 28 605 5 633 04 844 2022 INFL 11/07/00 12 350 9 C 181 1837 298 0 895 658 1,0754 29 680 9 439 03 418 2063 INFL 12!20100 12,7742 D -- -- — — — - — — -- — iNFL 01/17/01 12,9220 C 30 1921 475 0 $79 291 1 129 9 30,8109 1 11 01 379 2101 INFL 02/21/01 13 762 0 C 40 1912 293 0 10 08 6155 31,4264 NO 00 117 2113 INFL 03/14101 13 92B 4 C 25 1848 475 4 430 31B 1129 31 539 3 22 04 14 2120 INFL 04/18/01 14 764 5 C 30 1947 375 0 520 405 1,2600 32 799 3 68 00 Be 2195 INFL 05/17/01 15,3524 C 25 1924 275 5 110 85 6002 33 399 5 ND 05 59 2254 INFL 06/13/01 15 797 6 C 25 1914 400 20 440 337 3913 33,7907 80 00 48 2302 INFL 07/11/01 163936 C 30 1915 450 0 310 238 7136 34,5043 06 00 04 2306 INFL 08/15/01 172325 C 25 1513 400 30 330 200 7648 35 269 1 ND 00 00 2306 INFL 09/05/01 17,6825 C 25 1913 400 30 490 375 5392 35 808 3 ND 00 00 2306 INFL 10/10/01 18 331 3 C 30 1365 300 0 360 200 7769 36 585 2 NO 00 00 2300 INFL 11/28!01 19 001 4 C 20 1887 375 40 110 8 3 3946 36 979 8 ND 01 12 231 8 INFL 12112!01 19,3392 C 25 1612 325 0 280 181 1856 37 165 4 15 00 06 2325 101102!02 11171*4 C 25 1513 210 10 190 115 2281 37 393 5 NO Go 00 2325 I 02/06/02 20,4745 C 90 537 2,700 50 270 58 2759 37 669 5 ND 00 00 2325 INP N 03106/02 21 1468 C 100 532 1,100 40 170 36 1318 37 801 3 NO 00 00 2325 INFL 04/09/02 21 8049 C 95 523 650 0 610 128 2251 38,026 4 ND 00 01 2326 INFL 05/01/02 22,2760 C 100 527 350 25 130 27 1523 38 178 7 052 00 01 2327 REPORTING PERIOD 04/1/02 to OW30/02 TOTAL POUNDS REMOVED 38,1787 2327 TOTAL GALLONS REMOVED' 6,2588 $17 PERIOD POUNDS REMOVED 3772 0.2 PERIOD GALLONS REMOVED, 619 00 PERIOD AVG FLOW RATE 53 PERIOD PERCENT OPERATIONAL• 89% scfm =Standard cubic feet per minute NS=Not sampled lbs =Pounds a System startup,Initial air samples taken NA =Not available or not applicable = FID(flame-Ionization detector)reading (Flame Out) SND =Non detectable above detection limit Please note No samples were taken in July because the remediation system was down ppmv, =Parts per million by volume converted from micrograms C=dilution air valve is dosed 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 jDansity of gasoline=6 1 pounds per gallon i 7707 41737 00 0002102-02 Lockeford O&MTables xIs/TABLE A-1