Table 2: Soil samples calculated concentration, projected TPH, and laboratory TPH results.

Sample Soil name Contaminant Calculated concentration (ppm) Projected  TPH Spectroscopy  (TPH) Lab A (TPH) Lab B (TPH) Lab C (TPH) Min Max Avg Min Max Avg Min Max Avg 1 Hamra None 0 0 411 6 8 7 10 10 10 10 10 10 2 Diesel 450 567 908 354 434 394 599 610 605 458 506 483 3 4500 5674 4617 4575 5288 4932 6179 6292 6236 3730 4480 4111 4 10500 13239 8693 8122 8175 8149 14534 15369 14952 9897 10217 10021 5 Kerosene 550 670 953 277 320 299 405 415 410 305 383 350 6 6000 7304 4871 5455 6039 5747 7441 7528 7485 3420 3814 3628 7 12000 14609 8567 8740 9608 9174 14078 14125 14102 9410 9880 9704 8 95% octane 600 365 511 39 43 41 52 66 59 47 56 51 9 5500 3348 1274 519 586 553 793 838 816 244 333 300 10 9500 5783 1800 1227 1816 1522 1142 2003 1573 260 312 279 11 Loess None 0 0 10 9 9 9 10 10 10 10 15 12 12 Diesel 500 630 1378 252 275 264 615 625 620 483 510 498 13 2500 3152 2545 1139 2308 1724 3593 3601 3597 2816 3055 2936 14 9000 11348 6062 5984 7303 6644 12447 12958 12703 7970 8560 8313 15 Kerosene 400 487 909 128 145 137 345 354 350 210 255 236 16 4000 4870 3182 2606 3250 2928 4687 4698 4693 2145 2312 2219 17 11000 13391 6495 9435 9628 9532 13184 13411 13298 7264 7859 7533 18 95% octane 700 426 937 34 47 41 70 70 70 46 69 54 19 4500 2739 704 210 228 219 629 635 632 62 88 73 20 10000 6087 1100 1188 1193 1191 2674 3107 2891 578 629 601 21 Gromosol None 0 0 655 6 6 6 10 10 10 78 110 91 22 Diesel 600 757 737 356 381 369 640 677 659 463 512 490 24 3500 4413 1419 2613 2917 2765 4441 4624 4533 2493 2706 2621 23 11000 13870 2376 11753 14593 13173 14705 14800 14753 10513 11219 10811 25 Kerosene 600 730 714 223 237 230 439 470 455 190 254 222 26 5000 6087 1728 3494 4169 3832 5588 5613 5601 1231 1376 1306 27 10000 12174 3320 5839 6209 6024 11245 11436 11341 7922 8510 8261 28 95% octane 500 304 739 20 20 20 51 62 57 10 10 10 29 5200 3165 1916 410 491 451 680 691 686 228 265 249 30 9000 5478 1885 958 1127 1043 1800 1852 1826 685 824 743