GCMS comments for sample AD28900, Dec 16 2001

Machine-extracted title · confidence 90%

Lab report noting bis(2-Ethylhexyl) Sebacate detection and potential laboratory contamination in a water sample.

NYC-WTC_000035755–000035764

Folder label: “GCMS X 11/28/01 A 12/7/01”

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NYC 9/11 Public Portal Document

Quantitation Report (QT Reviewed)

Data File C:\HPCHEM\1\DATA\DEC0 701\28900.D Vial: 5 Acq On 7 Dec 2001 6:50 pm Operator: 209 GALOS Sample 11/28 gc/ms scan Inst : GC/MS 209 Mise Multiplr: 1.00 MS Integration Params: RTEINT.P Quant Time: Dec 11 15:47 2001 Quant Results File: GCMS1126.RES

Quant Method : C:\HPCHEM\1\METHODS\GCMS1126.M (RTE Integrator) Title : 209 625/TCLP calibration table Last Update : Wed Nov 28 15:06:24 2001 Response via : Initial Calibration DataAcq Meth : GCMS1126

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

1) 1,4-Dichlorobenzene-d4 11.67 152 805994 20.00 ug/1 -0.03 10) Naphthalene-d8 15.28 136 3067862 20.00 ug/1 -0.03 17) Acenaphthene-diO 20.56 164 1498554 20.00 ug/1 -0.02 29) Phenanthrene-diO 24.97 188 2189680 20.00 ug/1 -0.02 38) Chrysene-dl2 33.00 240 1410769 20.00 ug/1 -0.03 44) Perylene-dl2 37.10 264 984775 20.00 ug/1 -0.02

System Monitoring Compounds 37) 2,4-DDD 30.06 235 160024 6.14 ug/mL -0.01 Spiked Amount 5.000 Recovery = 122.80%

Target Compounds Qvalue 2) N-nitroso-dimethyl amine 5.25 74 121 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’-oxybi s(1-Chioropropan 0.00 45 0 N.D. 8) N-Nitroso-di-n-propylamine 0.00 70 0 N.D. 9) Hexachioroethane 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 15.33 128 2470 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-Dini trotoluene 0.00 165 0 N.D. d 22) Acenaphthylene 0.00 152 0 N.D. 23) Acenaphthene 0.00 153 0 N.D. 24) 2,4-Dinitrotoluene 21.11 165 117 N.D. 25) Diethylphthalate 22.07 149 1610 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 23.07 77 175 N.D.

(#) = qualifier out of range (m) = manual integration 28900.D GCMS1126.M Wed Dec 12 10:46:54 2001 Page 1

NYC-WTC_000035757

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GCMS comments for sample AD28861, Dec 17 2001 · Box DEP Box 22

NYC-WTC_000035745

Laboratory notes indicating re-extraction is required due to low recovery and potential contamination.

1 shared topics · Same agency, volume and box · similarity 0.999