GCMS blank analysis results, sample AD31498, February 2002

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Gas chromatography-mass spectrometry blank quality control analysis showing results below method detection limits for organic contaminants tested February 27, 2002.

NYC-WTC_000038122–000038129

Folder label: “GCMS X 2/21/02 A 2/22/02”

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NYC 9/11 Public Portal Document

?‘ Quantitation Report (QT Reviewed)

Data File : C:\HPCHEM\l\DATA\FEB2102\LBB.D Vial: 30 Acq On : 22 Feb 2002 7:44 pm Operator: Sample : gc/ms scan 2/21 Inst : GC/MS 209 Mise : Multiplr: 1.00 MS Integration Params: GOOFY.P Quant Time: Feb 27 11:04 2002 Quant Results File: GCMS0208.RES

Quant Method : C:\HPCHEM\1\METHODS\GCMS0208.M (RTE Integrator) Title : 209 625/TCLP calibration table Last Update : Thu Feb 21 16:13:52 2002 Response via : Initial Calibration DataAcq Meth : GCMS0208

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

1) 1,4-Dichlorobenzene-d4 12.33 152 247917 20.00 ug/1 -0.03 10) Naphthalene-d8 15.97 136 947469 20.00 ug/1 -0.03 17) Acenaphthene-diO 21.29 164 511274 20.00 ug/1 -0.03 29) Phenanthrene-dlO 25.73 188 714917 20.00 ug/1 -0.03 38) Chrysene-dl2 33.80 240 474019 20.00 ug/1 -0.04 44) Perylene-dl2 38.08 264 333829 20.00 ug/1 -0.04

System Monitoring Compounds 37) 2,4-DDD 30.81 235 47195 5.71 ug/mL 0.31 Spiked Amount 5.000 Recovery 114.20%

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) 2,2‘-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 16.03 128 180 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 0.00 149 0 N.D. 26) 4-Chlorophenyl-phenylether 0.00 204 0 N.D. 27) Fluorene 0.00 166 0 N.D. 28) Azobenzen/ 1,2-Diphenylhyd 0.00 77 0 N.D.

(#) = qualifier out of range (m) = manual integration LBB.D GCMS0208.M Wed Feb 27 11:05:21 2002 Page 1

NYC-WTC_000038123

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GCMS blank analysis results, April 2002 · Box DEP Box 57

NYC-WTC_000058898

Laboratory report showing non-detect levels for various organic compounds in a GCMS blank sample from April 2002.

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