GCMS blank analysis results, June 5 2002

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Laboratory report showing non-detect levels of volatile organic compounds in a GCMS blank sample analyzed on June 5, 2002.

NYC-WTC_000015496–000015523

Folder label: “GCMS X 6/4/02 A 6/4/02”

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NYC 9/11 Public Portal Document

LSC Area Percent Report

Data File C:\MSDCHEM\1\DATA\060402\604LB.D Vial: 3 Acq On 4 Jun 2002 5:29 pm Operator: McLean Sample 6/4 Inst Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e 2* Method : C:\MSDCHEM\1\METHODS\060302.M (Chemstation Integrator)-- Title : 508 Modified GC/MS scan Signal : TIC peak R.T. first max last PK peak corr. corr. % of # min scan scan scan TY height area % max. total 1 3.220 22 24 3 0 PV 6 2360 27879 0.09% 0.017% 2 3.291 35 36 44 PV 4 2613 39621 0.13% 0.023% 3 3.349 44 46 50 PV 4 2118 24965 0.08% 0.015% 4 3.473 62 67 89 PV 7 5974 261400 0.87% 0.155% 5 3.725 94 110 111 W 4 39379 1556684 5.18% 0.922%

6 3.737 111 112 120 W 6 39348 1244850 4.15% 0.738% 7 3.796 120 122 125 W 4 38523 563967 1.88% 0.334% 8 3.819 125 126 129 W 3 36226 552426 1.84% 0.327% 9 3.849 129 131 146 W 5 36755 2030845 6.76% 1.203% 10 3.949 146 148 151 W 4 31343 521426 1.74% 0.309%

11 3.972 151 152 161 W 7 31103 975342 3.25% 0.578% 12 4.148 181 182 186 W 3 25379 415161 1.38% 0.246% 13 4.783 288 290 292 W 3 10708 151896 0.51% 0.090% 14 4.912 309 312 316 W 6 8973 195466 0.65% . 0.116% 15 5.318 379 381 385 W 4 5121 78998 0.26% 0.047% 16 5.365 385 389 400 W 8 6293 252044 0.84% 0.149% 17 5.958 486 490 503 PV 2 9841 239610 0.80% 0.142% 18 8.702 949 957 970 PV 3 6860 185853 0.62% 0.110% 19 9.008 1002 1009 1014 W 7 2130 54592 0.18% 0.032% 20 9.895 1151 1160 1176 PV 953691 19753029 65.79% 11.705% 21 10.001 1176 1178 1181 W 3 1378 10220 0.03% 0.006% 22 12.368 1571 1581 1590 BV 2 7491 120825 0.40% 0.072% 23 13.391 1744 1755 1774 PV 1500203 26859332 89.46% 15.916% 24 13.544 1774 1781 1792 W 2 3778 80083 0.27% 0.047% 25 16.710 2313 2320 2323 PV 4 1802 26975 0.09% 0.016%

26 17.110 2383 2388 2394 W 4 4210 65092 0.22% 0.039% 27 17.621 2471 2475 2483 W 3 2303 28878 0.10% 0.017% 28 18.526 2619 2629 2649 PV 1611581 29656734 98.78% 17.574% 29 20.500 2951 2965 2980 PV 976353 18314849 61.00% 10.853% 30 21.352 3104 3110 3120 W 4 6453 104432 0.35% 0.062% 31 22.539 3303 3312 3324 W 2 9483 165000 0.55% 0.098% 32 22.903 3365 3374 3395 PV 2 1553028 30023320 100.00% 17.791% 33 23.062 3395 3401 3409 W 3 8777 181334 0.60% 0.107% 34 25.042 3732 3738 3751 W 2 1927 41136 0.14% 0.024% 35 30.753 4701 4710 4748 PV 2 981564 20972772 69.85% 12.428% 36 34.308 5306 5315 5322 W 6 1887 37551 0.13% 0.022% 37 34.649 5363 5373 5406 W 2 525610 12488942 41.60% 7.401% 604LB.D 060302.M Wed Jun 05 12:28:24 2002 Page 1

NYC-WTC_000015500

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NYC-WTC_000015500Source: NYC Law Department, mirrored locally

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GCMS blank analysis results, sample AE11799, May 2002 · Box DEP Box 15

NYC-WTC_000012751

Gas chromatography-mass spectrometry blank analysis for sample AE11799 showing results below method reporting limits for semivolatile organic compounds, dated May 28, 2002.

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