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TABLE 7 TPH REMOVAL AND DESTRUCTION EFFICIENCY Wards and Unocal Sites Hours Soil Va or to Oxidizer Combustion Gases DRE Total Date TO 1 A5 Flow TPH Flow TPH Removed scfm", ug/L, lb/day(2) scfmt3) ug/L I lb/day %(4) lb") 10/07/99 3 31 2811 I4,450 36522 2811 305 771 9789 46 12/21/99 415 320 2075 5,747 10723 2675 23 055 9948 4,101 03/28/00 1771 1457 213 1 408 782 321 1 ND 000 9999 7,351 06/15/00 2835 2442 1932 384 667 34021 ND 000 100 7,672 09/28/00 3914 3311 2006 800 1443 3186 66 019 9869 8,146 12/14/00 4604 3932 2006 22 040 3066 000 000 100 8,360 06/21/01 4658 3936 193 3 061 001 3193 009 000 100 8,360 08/27/01 4688 4795 208 1 306 572 2381 0 100 83 8 364 12/11/01 4906 5488 2100 0 000 3897 0 200 100 8,390 02/21/02 5106 5780 1879 140 237 361 9 0 000 100 8,399 03/28/02 5260 6011 183 7 140 231 2767 0 000 100 8,415 04/21/02 5550 6302 1864 158 26,5 279 4 NA N/A N/A 8,444 06/17/02 5706 67461 2270 0 000 2827 01 000 100 8,453 09/30/02 5754 82221 183 9 35 058 303 9 01 000 100 8,454 12/24/02 5974 9693 2244 0 000 321 0 01 000 100 8,456 03/18/03 6075 10998 259 2 0 000 3684 01 000 100 8,456 04/28/03 6234 12,063 1849 056 001 301 0 0 0001 100 -8456 09/15/031 6410 122690 1870 46281 079 301 3 01 0001 1001 8,462 Notes: (1) Calculated based on field data (2) TPH lb/day = flow scfm * TPH ug/L *10 h(g/ug)*1440 (min/d)*2 205*10-' (lb/g) (3) Calculated based on field data (4) DRE % = (TPH lb/day - Combustion Gases TPH lb/day)/TPH lb/day*100 (5) Total Removed (Current Ib/day-+-Previous lb/day)/2/24 hr/day*Current Hours ug/L - micrograms per liter scfin - standard cubic feet per minute (at 14 7 Asia and 60 OF) lb/day - pounds per day DRE - destruction and removal efficiency 10 - 1 hermal Oxidizer AS - Air Spargmg Compressor 1112 AQ-1 R Tables XLS Page 1 of 1 ENVIRONMENTAL AUDIT,INC