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GCMS blank analysis results for sample AE11306, May 21, 2002

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Laboratory report of a method blank analysis for GCMS testing conducted on May 21, 2002, showing non-detects for various compounds.

NYC-WTC_000024956–000024964

Folder label: “GCMS X 5/14/02 A 5/21/02

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NYC 9/11 Public Portal Document Quantitation Report (QT Reviewed)

Data File : C:\HPCHEM\1\DATA\MAY2102\LBB.D Vial: 17 Acq On : 21 May 2002 4:33 pm Operator: Sample : EXTRACTS/14 Inst : 209 Mise : Multiplr: 1.00 MS Integration Params: GOOFY.P Quant Time: May 22 9:04 2002 Quant Results File: GCMS0520.RES

Quant Method : C:\HPCHEM\1\METHODS\GCMS0520.M (RTE Integrator) Title : 209 625/TCLP calibration table Last Update : Wed May 22 09:03:22 2002 Response via : Initial Calibration DataAcq Meth : GCMS0520

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

1) 1,4-Dichlorobenzene-d4 12.15 152 415255 40.00 ug/1 0.00 10) Naphthalene-d8 15.77 136 1619038 40.00 ug/1 -0.02 17) Acenaphthene-diO 21.08 164 777724 40.00 ug/1 0.00 30) Phenanthrene-diO 25.52 188 984878 40.00 ug/1 0.00 38) Chrysene-dl2 33.57 240 485567 40.00 ug/1 -0.04 44) Perylene-dl2 37.78 264 309613 40.00 ug/1 -0.02

System Monitoring Compounds 28) TCMX 23.22 209 145821 37.31 ug/L 0.00 Spiked Amount 40.000 Recovery 93.28%

Target Compounds Qvalue 2) N-nitrosodimethylamine 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) 2,2'-oxybis(1-Chloropropan 0.00 45 0 N.D. 8) N-Nitrosodi-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 15.84 128 296 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. d 22) Acenaphthylene 0.00 152 0 N.D. 2 3) Acenaphthene 0.00 153 0 N.D. 24) 2,4-Dinitrotoluene 0.00 165 0 N.D. 25) Diethylphthalate 0.00 149 0 N.D. 26) 4-Chlorophenylphenylether 23.21 204 638 N.D. 27) Fluorene 0.00 166 0 N.D. 29) Azobenzene 0.00 77 0 N.D. 31) N-Nitrosodiphenylamine 23.22 168 355 N.D. 32) 4-Bromophenylphenylether 0.00 248 0 N.D. 33) Hexachlorobenzene 0.00 284 0 N.D. 34) Phenanthrene 0.00 178 0 N.D.

(#) = qualifier out of range (m) = manual integration LBB.D GCMS0520.M Wed May 22 09:04:31 2002 Page 1

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