GC/MS results for unknown compounds and surrogates, sample AE10983, May

Machine-extracted title · confidence 100%

Laboratory report showing GC/MS analysis of sample AE10983 with surrogate recovery data for 2,4-DDD.

NYC-WTC_000023949–000023969

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

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NYC 9/11 Public Portal Document L J__ ___ J__ ___ vv •

39 12.410 1582 1588 1592 W 4656 78268 0.14% 0.023% 40 12.527 1604 1608 1615 W 4 2418 39467 0.07% 0.012%

41 12.662 1626 1631 1635 W 4 . 2116 33712 0.06% 0.010% 42 12.727 1635 1642 1648 W 4 2397 53100 0.10% 0.016% 43 12.903 1663 1672 1683 W 4 6507 206095 0.37% 0.061% 44 13.191 1716 1721 1733 W 2 6797 147314 0.26% 0.044% 45 13.432 1747 1762 1782 PV :2727993 51349924 92.28% 15.207%

46 13.585 1782 1788 1795 W 2 9197 179926 0.32% 0.053% 47 13.826 1824 1829 1836 W 7 2743 54328 0.10% 0.016% 48 15.700 2135 2148 2154 W 5 2534 69587 0.13% 0.021% 49 15.900 2175 2182 2191 PV 5 1888 42195 0.08% 0.012% 50 16.376 2255 2263 2269 W 5 2054 51440 0.09% 0.015%

51 16.540 2284 2291 2299 W 3 3824 83006 ' 0.15% 0.025% 52 16.746 2321 2326 2330 W 2 5709 104215 0.19% 0.031% 53 16.775 2330 2331 2339 W 4 3235 52225 0.09% 0.015% 54 17.151 2389 2395 2401 W 2 12015 200889 0.36% 0.059% 55 17.662 2476 2482 2486 PV 4 4920 77521 0.14% 0.023%

56 18.567 2626 2636 2658 PV 2804887 55645459 100.00% 16.479% 57 18.961 2694 2703 2708 PV 5 1809 39403 0.07% 0.012% 58 20.142 2900 2904 2911 W 4 2046 43275 0.08% 0.013% 59 20.547 2946 2973 2984 W 1615549 31111608 55.91% 9.214% 60 21.393 3112 3117 3124 PV 2 15281 244396 0.44% 0.072%

61 21.752 3159 3178 3187 BV 5 1677 29575 0.05% 0.009% 62 22.580 3311 3319 3328 W 2 21940 422173 0.76% 0.125% 63 22.956 3372 3383 3402 PV 2 2535325 53735405 96.57% 15.913% 64 23.109 3402 3409 3420 W 3 25789 585767 1.05% 0.173% 65 25.095 3739 3747 3758 PV 2 4256 94529 0.17% 0.028%

66 29.989 4572 4580 4582 PV 4 1320 18738 0.03% 0.006% 67 30.812 4708 4720 4765 PV 2 1879280 44690185 80.31% 13.235% 68 31.082 4765 4766 4774 W 6 4338 116467 0.21% 0.034% 69 31.376 4804 4816 4826 W 7 3181 90164 0.16% 0.027% 70 33.885 5236 5243 5251 PV 3 1624 27456 0.05% 0.008%

71 34.707 5367 5383 5425 PV 2 1290973 33399101 60.02% 9.891% 72 34.966 5425 5427 5430 W 4 7396 113601 0.20% 0.034% 73 34.995 5430 5432 5445 W 9 6242 233674 0.42% 0.069% 74 35.589 5528 5533 5540 W 8 2518 62465 0.11% 0.018% 75 36.488 5680 5686 5692 W 7 2211 39682 0.07% 0.012%

76 36.740 5722 5729 5730 W 4 2431 33556 0.06% 0.010% 77 36.823 5730 5743 5751 W 4 9985 532174 0.96% 0.158% 78 36.905 5751 5757 5777 W 4 9577 532590 0.96% 0.158%

Sum of corrected areas: 337672928

10983.D 050102.M Thu May 16 14:39:32 2002 Page 2

NYC-WTC_000023955

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NYC-WTC_000023955Source: NYC Law Department, mirrored locally

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GC/MS results for unknown compounds and surrogates, sample AE10984, May · Box DEP Box 18

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Laboratory report showing GC/MS analysis of sample AE10984 with surrogate recovery data for 2,4-DDD.

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