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GCMS surrogate recovery results for sample AE00310, Jan 2002

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Laboratory record documenting GCMS surrogate recovery data for sample AE00310 analyzed on January 10, 2002.

NYC-WTC_000050948–000050962

Folder label: “GCMS X 1/7/02 A 1/9/02

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NYC 9/11 Public Portal Document a — — ■

Data File : C:\MSDCHEM\l\5973N\02JAN09\310.D Vial: 8 - Acq On : 10 Jan 2002 12:02 am Operator: Sample : 508 scan ext 1/7 Inst : Instrumen Mise : January 9, 2002 Multiplr: 1.00 MS Integration Params: SPLIT.P Quant Time: Jan 10 08:38:33 2002 Quant Results File: SCAN508.RES

Quant Method : C:\MSDCHEM\l..-\SCAN508.M (RTE Integrator) Title : 508 scan method Last Update : Wed Jan 09 12:49:14 2002 Response via : Initial Calibration DataAcq Meth : SCAN508

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

1) 1,4-Dichlorobenzene-d4 9.72 152 1686702 20.00 ug/L 0.00 10) Naphthalene-d8 13.19 136 7279279 20.00 ug/L -0.02 17) Acenaphthene-diO 18.34 164 3807606 20.00 ug/L -0.01 29) Phenanthrene-dlO 22.65 188 6343192 20.00 ug/L -0.02 38) Chrysene-dl2 30.49 240 5436683 20.00 ug/L -0.02 44) Perylene-dl2 34.42 264 3933074 20.00 ug/L 0.00

System Monitoring Compounds 37) 2,4-DDD 27.73 235 498733 4.97 ug/L 0.00 Spiked Amount 5.000 Recovery = 99.40%

Target Compounds Qvalue 2) N-nitroso-dimethylamine 3.60 74 12778 01 8 ug/L # 14 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 (l-Chloropropa 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) metha 0.00 93 0 N.D. 14) 1,2,4-Trichlorobenzene 0.00 180 0 N.D. 15) Naphthalene 0.00 128 0 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 18.34 163 617521 2 .46 ug/L # 55 21) 2,6-Dinitrotoluene 18.34 165 483906 9.8X ug/L # 17 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) Azobenzene 0.00 77 0 N.D. 30) N-nitrosodiphenylamine 0.00 169 0 0 ND. N.D. 31) 4-Bromophenyl-phenylether 0.00 248 32) Hexachlorobenzene 0.00 284 0 N.D, 33) Phenanthrene 22.70 178 6921 0.02 ug/L # 67 34) Anthracene 22.70 178 6921 0.02 ug/L # 66

(#) = qualifier out of range (m) = manual integration 310 .D SCAN508.M Thu Jan 10 08:38:34 2002 Page 1

NYC-WTC_000050950

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