VOC analysis results, sample AE11409, May 2002

NYC 9/11 Public Portal Document Quantitation Report (Not Reviewed)

Data File : C:\MSDchem\l\5973N\02mayl6\0516R5.D Vial: 6 Acq On : 16 May 2002 2:44 pm Operator: Sample : ref 5 Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: Lscint.p Quant Time: May 16 15:26:21 2002 Quant Results File: W042302.RES

Quant Method : C:\MSDCHEM\1...\W042302.M (RTE Integrator) Title : VOC method 8260 Last Update : Wed May 01 09:30:08 2002 Response via : Initial Calibration DataAcq Meth : W042302

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

1) 1,4-Difluorobenzene 17.70 114 1249206 5.00 ug/L 0.00 27) Chlorobenzene-d5 25.47 117 1224393 5.00 ug/L 0.00 51) 1,4-Dichlorobenzene-d4 31.54 150 1049039 5.00 ug/L 0.00

System Monitoring Compounds 2) 1,2-Dichloroethane-d4 16.78 65 223745 4.92 ug/L 0.02 Spiked Amount 5.000 Recovery = 98.40% 17) Toluene-d8 21.62 98 1671706 4.98 ug/L 0.00 Spiked Amount 5.000 Recovery = 99.60% 54) 4-Bromofluorobenzene 28.51 95 609933 5.10 ug/L 0.00 Spiked Amount 5.000 Recovery = 102.00%

Target Compounds Qvalue 3) Dichlorodifluoromethane 5.33 85 135600 3.79 ug/L 100 4) Chloromethane 5.93 50 266701 4.92 ug/L 95 5) Vinyl Chloride 6.19 62 259148 4.97 ug/L 98 6) Bromomethane 7.29 94 113239 4.75 ug/L 96 7) Chloroethane 7.46 64 208550 6.15 ug/L 96 8) Trichlorofluoromethane 8.13 101 312886 4.60 ug/L 99 11) Acetone 9.38 43 61141 17.76 ug/L 94 12) 1,1-Dichloroethene 9.78 61 240411 4.10 ug/L 99 13) Methylene Chloride 11.04 49 200918 4.58 ug/L 98 14) Methyl tert-butyl ether 11.43 73 219019 4.98 ug/L 98 15) trans-1,2-Dichloroethene 11.85 61 255093 4.41 ug/L 100. 16) 1,1-Dichloroethane 12.95 63 311478 4.31 ug/L 100 18) 2-Butanone (MEK) 14.01 43 88495 18:82 ug/L 98 19) 2,2-Dichloropropane 14.42 77 276345 4.53 ug/L 96 20) cis-1,2-Dichloroethene 14.54 61 235003 4.46 ug/L 100 21) Chloroform 14.95 83 277278 4.38 ug/L 100 22) Bromochloromethane 15.40 49 99725 4.49 ug/L 98 23) 1,1,1-Trichloroethane 16.01 97 . 276391 4.55 ug/L 97 24) 1,1-Dichloropropene 16.40 75 279155 4.68 ug/L 98 25) Carbon Tetrachloride 16.68 117 225030 4.48 ug/L 96 26) 1,2-Dichloroethane 17.02 62 148391 4.66 ug/L 100 28) Benzene 17.10 78 796970 4.20 ug/L 100 29) Trichloroethene 18.62 95 207045 4.50 ug/L 98 30) 1,2-Dichloropropane 19.06 63 169647 4.57 ug/L 99 31) Bromodichloromethane 19.66 ■ 83 169163 4.35 ug/L 99 32) Dibromomethane 19.83 93 49045 4.36 ug/L 98 33) 2-Chloroethyl vinyl ether 20.27 63 20910 0.54 ug/L 92 34) Methyl iso-butyl ketone 20.39 43 210308 18.29 ug/L 99 35) cis-1,3-Dichloropropene 20.96 75 225366 4.90 ug/L 99

(#) = qualifier out of range (m) = manual integration 0516R5.D W042302.M Thu May 16 15:26:21 2002 Page 1

NYC-WTC_000083221