GC/MS results for unknown compounds and surrogates, sample AE10985, May

Machine-extracted title · confidence 100%

Laboratory report showing GC/MS analysis of sample AE10985 with surrogate recovery data for 2,4-DDD.

NYC-WTC_000024014–000024037

Folder label: “GCMS X 5/10/02 A 5/14/02”

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NYC 9/11 Public Portal Document 38 12.521 1600 1607 1618 PV 5 3751 87848 0.19% 0.032% 39 12.721 1637 1641 1650 W 3035 67255 0.14% 0.024% 40 13.432 1751 1762 1783 W 2308791 42729423 91.99% 15.451%

41 13.579 1783 1787 1795 W 3 7191 141157 0.30% 0.051% 42 13.826 1821 1829 1834 W 4 2995 50657 0.11% 0.018% 43 15.700 2140 2148 2159 W 5 2119 65743 0.14% 0.024% 44 16.540 2285 2291 2299 PV 6 3120 73147 0.16% 0.026% 45 16.746 2320 2326 2339 W 5 4448 117470 0.25% 0.042%

46 17.151 2381 2395 2401 PV 5 9227 161967 0.35% 0.059% 47 17.663 2477 2482 2489 W 3 4071 67611 0.15% 0.024% 48 18.567 2624 2636 2662 PV 2405484 46451787 100.00% 16.796% 49 18.961 2699 2703 2710 BV 2 1687 29812 0.06% 0.011% 50 20.148 2900 2905 2910 W 3 2137 40219 0.09% 0.015%

51 20.547 2955 2973 2990 PV 1326017 25451648 54.79% 9.203% 52 21.399 3111 3118 3126 W 3 13352 201708 0.43% 0.073% 53 22.580 3312 3319 3326 W 2 17190 318914 0.69% 0.115% 54 22.951 3362 3382 3402 PV 2 2105542 44421663 95.63% 16.062% 55 23.109 3402 3409 3420 W 3 19664 470756 1.01% 0.170%

56 25.095 3740 3747 3754 PV 3 2714 57827 0.12% 0.021% 57 30.806 4698 4719 4747 PV 2 1537331 35563788 76.56% 12.859% 58 30.977 4747 4748 4762 W 5 8887 294528 0.63% 0.106% 59 31.088 4765 4767 4770 W 4 3853 53730 0.12% 0.019% 60 31.376 4810 4816 4829 PV 6 3419 77427 0.17% 0.028%

61 33.885 5239 5243 5252 W 3 1566 28472 0.06% 0.010% 62 34.708 5371 5383 5425 PV 2 1041285 26596687 57.26% 9.617% 63 34.960 5425 5426 5430 W 3 6264 99497 0.21% 0.036% 64 34.995 5430 5432 5439 W 6 4599 124354 0.27% 0.045% 65 35.060 5439 5443 5446 W 5 3967 76622 0.16% 0.028%

66 35.242 5470 5474 5483 W 6 3668 132770 0.29% 0.048% 67 35.354 5483 5493 5496 W 7 5802 184128 0.40% 0.067% 68 35.395 5496 5500 5505 W 8 7346 212789 0.46% 0.077% 69 35.436 5505 5507 5509 W 2 7294 92774 0.20% 0.034% 70 35.460 5509 5511 5517 W 6 7332 201704 0.43% 0.073%

71 35.507 5517 5519 5529 W 9 7310 253701 0.55% 0.092% 72 35.583 5529 5532 5539 W 7 6662 170814 0.37% 0.062% 73 36.488 5680 5686 5693 W 7 2388 53995 0.12% 0.020% 74 39.678 6224 6229 6235 PV 4 1411 17470 0.04% 0.006%

Sum of corrected areas: 276556583

10985.D 050102.M Thu May 16 14:42:24 2002 Page 2

NYC-WTC_000024020

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NYC-WTC_000024020Source: NYC Law Department, mirrored locally

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