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VOC analysis results, sample AE02089, Feb 7 2002

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Laboratory results for volatile organic compounds in sample AE02089 analyzed on February 7, 2002.

NYC-WTC_000019422–000019569

Folder label: “524 2/6/02 - 2/7/02

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NYC 9/11 Public Portal Document Quantitation Report (Not Reviewed) Data File C:\HPCHEM\1\DATA\02feb06\0206C10A.D Vial: 3 Acq On 6 Feb 2002 2:12 pm Operator: 201-wb Sample cal 10 Inst : GC/MS Ins Mise Multiplr: 1.00 MS Integration Params: LSCINT.P Quant Time: Feb 6 14:50 2002 Quant Results File: HP013102.RES— wasee

Quant Method : C:\HPCHEM\1\METHODS\HP013102.M (RTE Integrator) Title : VOCs BY EPA METHOD 524 Last Update : Fri Feb 01 13:18:32 2002 Response via : Initial Calibration DataAcq Meth : HP013102

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

1) 1,4-DIFLUOROBENZENE 15.08 114 1809858 5.00 ug/L -0.03 2 4) CHLOROBENZENE-D5 21.74 117 1800596 5.00 ug/L -0.02 52) 1,4-DICHLOROBENZENE-D4 26.93 152 894820 5.00 ug/L -0.02

System Monitoring Compounds 2) 1,2-DICHLOROETHANE -D4 14.31 65 760525 4.85 ug/L -0.03 Spiked Amount 5.000 Recovery = 97.00% 3) 4-BROMOFLUOROBENZENE 24.34 174 692450 4.99 ug/L -0.02 Spiked Amount 5.000 Recovery = 99.80% 25) TOLUENE-D8 18.44 98 2247137 5.00 ug/L -0.03 Spiked Amount 5.000 Recovery = 100.00% Target Compounds Qvalue — 4) DICHLORODIFLUOROMETHANE 4.85 85 503124 16.26 ug/L 98 5) CHLOROMETHANE 5.47 50 481315 13.37 ug/L 98 6) VINYL CHLORIDE 5.59 62 220639 11.59 ug/L 100 7) BROMOMETHANE 6.58 94 271226 10.30 ug/L 97 ~ 8) CHLOROETHANE 6.71 64 272605 11.73 ug/L 96 9) TRICHLOROFLUOROMETHANE 7.27 101 549704 10.11 ug/L 100 — 10) Isopropyl Alcohol 7.82 45 2361 25). 15 ug/L 60 — 11) 1,1,2-Trichloro-l,2,2-trif 8.17 101 436506 10.81 ug/L 95 — 12) ACETONE 8.24 43 173490 17,77 ug/L 96 — 13) 1,1-DICHLOROETHENE 8.59 61 759773 8. 94 ug/L 96 — 14) METHYLENE CHLORIDE 9.60 49 1004756 11.94 ug/L 100 — 15) METHYL TERT BUTYL ETHER 9.89 73 1052785 9.95 ug/L 96 16) TRANS-1,2-DICHLOROETHENE 10.26 61 1105462 10.73 ug/L 97 17) 1,1-DICHLOROETHANE 11.14 63 1334398 10.74 ug/L 99 18) 2-BUTANONE (MEK) 11.98 43 338347 14.74 ug/L 98 — 19) 2,2-DICHLOROPROPANE 12.36 77 1135109 10.91 ug/L 99 — 20) CIS-1,2-DICHLOROETHENE 12.47 96 811689 10.92 ug/L 97 — 21) CHLOROFORM 12.80 83 1418481 10.25 ug/L 99 22) BROMOCHLOROMETHANE 13.18 49 650305 10.92 ug/L 99 23) 1,2-DICHLOROETHANE 14.52 62 934442 9.57 ug/L 99 26) 1,1,1-TRICHLOROETHANE 13.69 97 1115154 9.77 ug/L 99 27) 1,1-DICHLOROPROPENE 14.02 75 1104026 10.83 ug/L 99 — 28) CARBON TETRACHLORIDE 14.28 117 933250 10.04 ug/L 99 — 29) BENZENE 14.63 78 2513595 10.01 ug/L 99 30) TRICHLOROETHENE 15.90 95 803572 9.62 ug/L 96 31) 1,2-DICHLOROPROPANE 16.24 63 721577 9.84 ug/L 99 Z 32) DIBROMOMETHANE 16.92 174 346158 8.83 ug/L 99 33) BROMODICHLOROMETHANE 16.77 83 957889 8.67 ug/L 99 (#) = qualifier out of range (m) = manual integration 0206C10A.D HP013102.M Wed Feb 06 14:51:00 2002 Page 1

NYC-WTC_000019431

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