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TABLE 4 COMPARISON OF THE EXCAVATED VERSES THE RESIDUAL CONTAMINATED SOIL <br /> SAMPLE ID SOIL PILE TPHd AVERAGE TPHd ESTIMATED SOIL ESTIMATED MASS <br /> NO. (ppm) CONCENTRATION VOLUME OF <br /> (ppm) (yds3) HYDROCARBONS <br /> (lbs) <br /> TPHd CONTAMINATED SOIL REMOVED <br /> SPI A-D SP1 290 152 100 4104 <br /> SPI E-H 15 <br /> SP2 I-L SP2 940 622 200 335 88 <br /> SP2 M-P 1500 <br /> SP2 Q-T 5 <br /> SP2 CC-FF 42 <br /> SP3 U-X SP3 ND 6 100 1 62 <br /> SP3 Y-EB 12 <br /> SP4 GG-JJ SP4 5 24 250 1620 <br /> SP4 KK-NN 5 <br /> SP4 00-RR 66 <br /> SP4 SS-VV 98 <br /> SP4 WW-ZZ 56 <br /> SPS A-D SP5 60 6 50 81 <br /> SPG I-H SP6 16 19 100 5 13 <br /> SP6 I-L 21 <br /> TOTAL REMOVED 800 yds' 400 68 <br /> TPHd CONTAMINATED SOIL LEFT IN PLACE <br /> SEI-C-7 5'S SOUTH 1 2600 1300 10 35 10 <br /> SIDEWALL <br /> SAMPLE <br /> PERCENT CONTAMINATED SOIL LEFT IN PLACE 10 ydO (100) 1 23% <br /> 810 yds' <br /> PERCENT OF HYDROCARBONS LEFT IN PLACE 35 10 lbs 8 06% <br /> 435 78 lbs <br /> *"ILSJCFI LF <br /> I <br />