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GCMS analysis sample AD26534, 1,1,2,2-Tetrachloroethane, Dec 2001

Machine-extracted title · confidence 95%

Mass spectrometry analysis of sample AD26534 detected 1,1,2,2-Tetrachloroethane at 2.9 ug/L with 93% fit confidence, Dec 16, 2001.

NYC-WTC_000031801–000031813

Folder label: “GCMS X 11/6/01 A 12/7/01

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Scanned page image, NYC-WTC_000031807
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NYC 9/11 Public Portal Document

LSC Area Percent Report

Data File C:\HPCHEM\l\DATA\DEC0701\26534.D Vial: 9 Acq On 8 Dec 2001 1:24 am Operator: GALOS Sample’ gc/ms unknown 11/6 Inst : GC/MS Ins Mise Multiplr: 1.00 MS Integration Params: LSCINT.P

Method : C:\HPCHEM\1\METHODS\NP112701.M (RTE Integrator) Title : 208 625/TCLP calibration table 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 peak peak % of # min scan scan scan TY height area % max. total

1 5.051 19 23 33 rBV 534919 1236656 22.10% 3.776% 2 6.472 175 178 186 rBV 19520 64842 1.16% 0.198% 3 7.178 251 255 270 rVB 699176 1371106 24.50% 4.187% 4 7.857 325 329 345 rBV 843908 2027099 36.23% 6.190% 5 9.370 491 494 501 rBV 36580 69584 1.24% 0.212%

6 9.618 515 521 531 rVB 192614 656614 11.74% 2.005% 7 11.873 762 767 789 rBV 2032114 4594770 82.12% 14.030% 8 15.486 1156 1161 1180 rBV 2674387 5567313 99.50% 17.000% 9 20.759 1730 1736 1752 rBV 2710866 5595299 100.00% 17.085% 10 25.170 2211 2217 2229 rBV2 2289784 4974933 88.91% 15.191%

11 33.176 3084 3090 3106 rBV2 1663168 3790562 67.75% 11.574% 12 37.256 3529 3535 3555 rBV 997488 2800773 50.06% 8.552%

Sum of corrected areas: 32749551

26534.D NP112701.M Thu Dec 13 11:24:03 2001

NYC-WTC_000031807

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NYC-WTC_000031807Source: NYC Law Department, mirrored locally

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