GCMS blank results for sample AE07498, Apr 2002

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Laboratory report of GCMS blank analysis for sample AE07498 showing non-detect levels for volatile organic compounds on April 19, 2002.

NYC-WTC_000046989–000046995

Folder label: “GCMS X 4/1/02 A 4/19/02”

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Quantitation Report (QT Reviewed)

Data File : C:\HPCHEM\1\DATA\APR18O2\LBC.D Vial: 3 Acq On : 19 Apr 2002 7:32 pm Operator: Sample : gc/ms scan 4/1 Inst : 209 Mise : Multiplr: 1.00 MS Integration Params: GOOFY.P Quant Time: Apr 22 10:27 2002 Quant Results File: GCMS0419.RES

Quant Method : C:\HPCHEM\1\METHODS\GCMS0419.M (RTE Integrator) Title : 209 625/TCLP calibration table Last Update : Fri Apr 19 14:51:24 2002 Response via : Initial Calibration DataAcq Meth : GCMS0412

Internal Standards R.T. Qlon Response Cone Units Dev(Min)

1) 1,4-Dichlorobenzene-d4 12.21 152 414293 20.00 ug/1 -0.03 10) Naphthalene-d8 15.84 136 1513467 20.00 ug/1 -0.03 17) Acenaphthene-diO 21.15 164 863129 20.00 ug/1 -0.02 30) Phenanthrene-diO 25.58 188 1272127 20.00 ug/1 -0.03 39) Chrysene-dl2 33.64 240 842788 20.00 ug/1 -0.03 45) Perylene-dl2 37.87 264 556277 20.00 ug/1 -0.05

System Monitoring Compounds 2 8) TCMX 23.29 209 34706 4.82 ug/L -0.04 Spiked Amount 4.000 Recovery = 120.50% 38) 2,4-DDD 0.00 235 0 0.00 ug/mL Spiked Amount 5.000 Recovery = 0.00%

Target Compounds Qvalue 2) N-nitroso-dimethyl amine 0.00 74 0 N.D. 3) bis(2-Chloroethyl)ether 0.00 93 0 N.D. 4) 1,3-Dichlorobenzene 0.00 146 0 N.D. 5) 1,4-Dichlorobenzene 0.00 146 0 N.D. 6) 1,2-Dichlorobenzene 0.00 146 0 N.D. 7) 2,21-oxybis(1-Chloropropan 0.00 45 0 N.D. 8) N-Nitroso-di-n-propylamine 0.00 70 0 N.D. 9) Hexachloroethane 0.00 117 0 N.D. 11) Nitrobenzene 0.00 77 0 N.D. 12) Isophorone 0.00 82 0 N.D. 13) bis(2-Chloroethoxy)methane 0.00 93 0 N.D. 14) 1,2,4-Trichlorobenzene 0.00 180 0 N.D. 15) Naphthalene 15.90 128 443 N.D. 16) Hexachlorobutadiene 0.00 225 0 N.D. 18) Hexachlorocyclopentadiene 0.00 237 0 N.D. 19) 2-Chloronaphthalene 0.00 162 0 N.D. 20) Dimethylphthalate 0.00 163 0 N.D. 21) 2,6-Dinitrotoluene 0.00 165 0 N.D. 22) Acenaphthylene 0.00 152 0 N.D. 23) Acenaphthene 0.00 153 0 N.D. 24) 2,4-Dinitrotoluene 0.00 165 0 N.D. 25) Diethylphthalate 22.63 149 427 N.D. 26) 4-Chlorophenyl-phenylether 0.00 204 0 N.D. 27) Fluorene 0.00 166 0 N.D. 29) Azobenzen/ 1,2-Diphenylhyd 0.00 77 0 N.D. 31) N-Nitrosodiphenylamine 0.00 168 0 N.D. 32) 4-Bromophenyl-phenylether 0.00 248 0 N.D.

(#) = qualifier out of range (m) = manual integration LBC.D GCMS0419.M Mon Apr 22 10:28:36 2002 Page 1

NYC-WTC_000046990

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