WTC sample cover sheet, Dec 27 2001

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

Data File : C:\HPCHEM\1\DATA\01dec27\1227R40.D Vial: 9 Acq On : 27 Dec 2001 12:22 pm Operator: 206-BH Sample : ref 40 Inst : GC/MS Ins Misc Multiplr: 1.00 MS Integration Params: LSCINT.P Quant Time: Dec 27 13:01 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 14.46 114 914486 5.00 ug/L 0.10 22) CHLOROBENZENE-D5 21.05 117 980438 5.00 ug/L 0.09 50) 1,4-DICHLOROBENZENE-D4 26.21 152 816347 5.00 ug/L 0.10

System Monitoring Compounds 2) 1,2-DICHLOROETHANE-D4 13.67 65 316437 5.25 ug/L 0.09 Spiked Amount 5.000 Recovery = 105.00% 3) 4-BROMOFLUOROBENZENE 23.62 174 471055 6.71 ug/L 0.09 Spiked Amount 5.000 Recovery = 134.20% 23) TOLUENE-D8 17.78 98 1163059 4.47 ug/L 0.10 Spiked Amount 5.000 Recovery = 89.40%

Target Compounds Qvalue 4) DICHLORODIFLUOROMETHANE 4.50 85 1464171 49.06 ug/L 99 5) CHLOROMETHANE 5.00 50 1224905 66.01 ug/L 97 6) VINYL CHLORIDE 5.14 62 1013902 54.94 ug/L 97 7) BROMOMETHANE 6.09 94 924127 57.26 ug/L 98 8) CHLOROETHANE 6.23 64 686355 54.25 ug/L 98 9) TRICHLOROFLUOROMETHANE 6.76 101 1757374 43.87 ug/L 97 10) ACETONE 7.69 43 234997 38.31 ug/L 97 11) 1,1-DICHLOROETHENE 8.03 61 2519479 48.48 ug/L 98 12) METHYLENE CHLORIDE 9.00 49 2311809 45.89 ug/L 93 13) METHYL TERT BUTYL ETHER 9.31 73 2187655 32.90 ug/L 96 14) TRANS-1,2-DICHLOROETHENE 9.67 61 2562597 45.47 ug/L 88 15) 1,1-DICHLOROETHANE 10.54 63 3185376 45.31 ug/L 98 16) 2-BUTANONE (MEK) 11.36 43 353404 32.61 ug/L 94 17) 2,2-DICHLOROPROPANE 11.75 77 2825697 48.77 ug/L 98 18) CIS-1,2-DICHLOROETHENE 11.83 96 1673821 42.49 ug/L 89 19) CHLOROFORM 12.17 83 3188031 47.52 ug/L 99 20) BROMOCHLOROMETHANE 12.53 49 1362081 42.79 ug/L 93 21) 1,2-DICHLOROETHANE 13.88 62 1914093 42.40 ug/L 99 24) 1,1,1-TRICHLOROETHANE 13.04 97 2721491 45.19 ug/L 98 25) 1,1-DICHLOROPROPENE 13.38 75 2541716 42.77 ug/L 98 26) CARBON TETRACHLORIDE 13.62 117 2452101 47.88 ug/L 99 27) BENZENE 13.98 78 6863031 39.73 ug/L 97 28) TRICHLOROETHENE 15.24 95 1881729 40.66 ug/L 98 29) 1,2-DICHLOROPROPANE 15.60 63 1753263 36.44 ug/L 99 30) DIBROMOMETHANE 16.25 174 673184 39.30 ug/L 91 31) BROMODICHLOROMETHANE 16.09 83 2398961 43.27 ug/L 99 32) 2-CHLOROETHYL VINYL ETHER 16.60 63 526077 29.44 ug/L 93 33) Methyl iso-butyl ketone 16.67 58 265529 28.89 ug/L 97 ------------------------------------------------------------------------- (#) = qualifier out of range (m) = manual integration 1227R40.D HP121001.M Thu Dec 27 13:01:15 2001 Page 1

NYC-WTC 000002629