WTC sample cover sheet, Dec 31 2001

NYC 9/11 Public Portal Document

Quantitation Report (Not Reviewed)

Data File : C:\HPCHEM\1\DATA\O1DEC31\1231C10A.D Vial: 9 Acq On : 31 Dec 2001 11:25 am Operator: 206-BH Sample : cal 10 Inst : GC/MS Ins Misc Multiplr: 1.00 MS Integration Params: LSCINT.P Quant Time: Dec 31 12:04 2001 Quant Results File: HP121001.RES

Quant Method : C:\HPCHEM\1\METHODS\HP121001.M (RTE Integrator) Title : VOCs BY EPA METHOD 524 Last Update : Thu Dec 20 09:38:26 2001 Response via : Initial Calibration DataAcq Meth : HP121001

Internal Standards R.T. Qlon Response Conc Units Dev(Min) ------------------------------------------------------------------------- 1) 1,4-DIFLUOROBENZENE 14.42 114 959899 5.00 ug/L 0.07 22) CHLOROBENZENE-D5 21.00 117 929291 5.00 ug/L 0.03 50) 1,4-DICHLOROBENZENE-D4 26.16 152 662860 5.00 ug/L 0.05

System Monitoring Compounds 2) 1,2-DICHLOROETHANE-D4 13.64 65 322624 5.10 ug/L 0.05 Spiked Amount 5.000 Recovery = 102.000 3) 4-BROMOFLUOROBENZENE 23.59 174 402363 5.46 ug/L 0.05 Spiked Amount 5.000 Recovery = 109.200 23) TOLUENE-D8 17.73 98 1191302 4.84 ug/L 0.05 Spiked Amount 5.000 Recovery = 96.80%

Target Compounds Qvalue 4) DICHLORODIFLUOROMETHANE 4.47 85 395517 12.63 ug/L 99 5) CHLOROMETHANE 4.97 50 324387 16.65 ug/L 98 6) VINYL CHLORIDE 5.16 62 372889 19.25 ug/L 97 7) BROMOMETHANE 6.06 94 233728 13.80 ug/L 96 8) CHLOROETHANE 6.20 64 179818 13.54 ug/L 99 9) TRICHLOROFLUOROMETHANE 6.74 101 450041 10.70 ug/L 99 10) ACETONE 7.65 43 56510 8.78 ug/L 92 11) 1,1-DICHLOROETHENE 7.99 61 606089 11.11 ug/L 95 12) METHYLENE CHLORIDE 8.97 49 550339 10.41 ug/L 92 13) METHYL TERT BUTYL ETHER 9.28 73 556647 7.98.ug/L 97 14) TRANS-1,2-DICHLOROETHENE 9.63 61 597031 10.09 ug/L 84 15) 1,1-DICHLOROETHANE 10.50 63 756877 10.26 ug/L 98 16) 2-BUTANONE (MEK) 11.32 43 84744 7.45 ug/L 90 17) 2,2-DICHLOROPROPANE 11.70 77 652917 10.74 ug/L 98 18) CIS-1,2-DICHLOROETHENE 11.80 96 403435 9.76 ug/L 84 19) CHLOROFORM 12.12 83 747844 10.62 ug/L 99 20) BROMOCHLOROMETHANE 12.50 49 322931 9.66 ug/L 86 21) 1,2-DICHLOROETHANE 13.83 62 455661 9.62 ug/L 99 24) 1,1,1-TRICHLOROETHANE 13.01 97 626113 10.97 ug/L 99 25) 1,1-DICHLOROPROPENE 13.35 75 592175 10.51 ug/L 97 26) CARBON TETRACHLORIDE 13.59 117 545866 11.24 ug/L 99 27) BENZENE 13.94 78 1598365 9.76 ug/L 98 28) TRICHLOROETHENE 15.19 95 430874 9.82 ug/L 99 29) 1,2-DICHLOROPROPANE 15.55 63 415946 9.12 ug/L 98 30) DIBROMOMETHANE 16.19 174 149317 9.20 ug/L 94 31) BROMODICHLOROMETHANE 16.06 83 536057 10.20 ug/L 97 32) 2-CHLOROETHYL VINYL ETHER 16.55 63 122373 7.22 ug/L 95 33) Methyl iso-butyl ketone 16.62 58 60965 7.00 ug/L 96 ------------------------------------------------------------------------- (#) = qualifier out of range (m) = manual integration 1231C10A.D HP121001.M Wed Jan 02 11:26:19 2002 Page 1

NYC-WTC 000002845