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GCMS analysis results, sample AE02380, March 22, 2002

Machine-extracted title · confidence 85%

Gas chromatography-mass spectrometry analysis of environmental sample AE02380 detecting 2,4-DDD surrogate compounds at 80 ug with 5.0 ug minimum detection limit.

NYC-WTC_000010651–000010658

Folder label: “GCMS X 1/31/02 A 3/4/02

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NYC 9/11 Public Portal Document LSC Area Percent Report

.Data File C:\MSDCHEM\l\DATA\030402\2380.D Vial: 15 Acq On 4 Mar 2002 9:43 pm Operator: McLean Sample 1/31 Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.P

Method : C:\MSDCHEM\l\5973N\5080302.M (RTE Integrator) Title : Quantitation For Method 508gcscan Smoothing : OFF Filtering: 5 Sampling : 1 Min Area: 1 % of largest Peak Start Thrs: 0.2 Max Peaks: 100 Stop Thrs : 0 Peak Location: TOP

If leading or trailing edge < 100 prefer < Baseline drop else tangent > Peak separation: 5

Signal : TIC

peak R.T. first max last PK peak corr. corr. % of # min scan scan scan TY height area % max. total

1 9.579 711 717 734 rBV 2635979 6515849 69.09% 13.005% 2 12.074 988 992 997 rBV 76154 129509 1.37% 0.258% 3 13.053 1094 1100 1114 rBV 4515298 8576337 90.94% 17.118% 4 15.139 1326 1330 1335 rBV 58280 95146 1.01% 0.190% 5 18.169 1657 1664 1677 rBV 4433749 9241796 98.00% 18.446%

6 22.523 2138 2144 2158 rBV2 4410847 9430700 100.00% 18.823% 7 22.677 2158 2161 2174 rVB 33524 109472 1.16% 0.219% 8 27.457 2684 2688 2694 rBV 495092 853649 9.05% 1.704% 9 30.341 2998 3006 3018 rBV2 3879259 8995205 95.38% 17.954% 10 34.214 3426 3433 3452 rBV2 2559633 6153906 65.25% 12.283%

Sum of corrected areas: 50101569

2380.D 5080302.M Mon Mar 18 08:33:09 2002 Page 1

NYC-WTC_000010656

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NYC-WTC_000010656Source: NYC Law Department, mirrored locally

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