WTC sample cover sheet, Dec 19 2001

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

Data File : C:\HPCHEM\1\DATA\01DEC19\1219C10A.D Vial: 8 Acq On : 19 Dec 2001 8:47 pm Operator: 206-BH Sample : cal 10 Inst : GC/MS Ins Misc Multiplr: 1.00 MS Integration Params: LSCINT.P Quant Time: Dec 20 9:11 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 09:10:22 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 494887 5.00 ug/L 0.10 22) CHLOROBENZENE-D5 21.05 117 541372 5.00 ug/L 0.09 50) 1,4-DICHLOROBENZENE-D4 26.21 152 377372 5.00 ug/L 0.10

System Monitoring Compounds 2) 1,2-DICHLOROETHANE-D4 13.67 65 225901 6.93 ug/L 0.09 Spiked Amount 5.000 Recovery = 138.60% 3) 4-BROMOFLUOROBENZENE 23.62 174 221977 5.85 ug/L 0.09 Spiked Amount 5.000 Recovery = 117.00% 23) TOLUENE-D8 17.76 98 749983 5.23 ug/L 0.09 Spiked Amount 5.000 Recovery = 104.60%

Target Compounds Qvalue 4) DICHLORODIFLUOROMETHANE 4.50 85 121447 7.67 ug/L 99 5) CHLOROMETHANE 5.03 50 168038 16.73 ug/L 97 6) VINYL CHLORIDE 5.17 62 167359 16.76 ug/L 97 7) BROMOMETHANE 6.09 94 132893 15.21 ug/L 97 8) CHLOROETHANE 6.22 64 112401 16.42 ug/L 96 9) TRICHLOROFLUOROMETHANE 6.76 101 286980 13.24 ug/L 98 10) ACETONE 7.69 43 46958 14.14 ug/L 97 11) 1,1-DICHLOROETHENE 8.03 61 299484 10.65 ug/L 98 12) METHYLENE CHLORIDE 9.00 49 352870 12.94 ug/L 100 13) METHYL TERT BUTYL ETHER 9.31 73 352986 9.81 ug/L 98 14) TRANS-1,2-DICHLOROETHENE 9.67 61 330990 10.85 ug/L 95 15) 1,1-DICHLOROETHANE 10.54 63 442203 11.62 ug/L 100 16) 2-BUTANONE (MEK) 11.37 43 71308 12.16 ug/L 99 17) 2,2-DICHLOROPROPANE 11.73 77 321445 10.25 ug/L 99 18) CIS-1,2-DICHLOROETHENE 11.83 96 217273 10.19 ug/L 97 19) CHLOROFORM 12.17 83 441918 12.17 ug/L 99 20) BROMOCHLOROMETHANE 12.53 49 221813 12.88 ug/L 93 21) 1,2-DICHLOROETHANE 13.86 62 308529 12.63 ug/L 98 24) 1,1,1-TRICHLOROETHANE 13.04 97 352617 10.60 ug/L 97 25) 1,1-DICHLOROPROPENE 13.38 75 320242 9.76 ug/L 99 26) CARBON TETRACHLORIDE 13.62 117 302484 10.70 ug/L 100 27) BENZENE 13.98 78 904852 9.49 ug/L 98 28) TRICHLOROETHENE 15.24 95 248858 9.74 ug/L 96 29) 1,2-DICHLOROPROPANE 15.58 63 266063 10.01 ug/L 99 30) DIBROMOMETHANE 16.25 174 77766 8.22 ug/L 96 31) BROMODICHLOROMETHANE 16.09 83 337280 11.02 ug/L 99 32) 2-CHLOROETHYL VINYL ETHER 16.59 63 86162 8.73 ug/L 100 33) Methyl iso-butyl ketone 16.67 58 44580 8.78 ug/L 93 ------------------------------------------------------------------------- (#) = qualifier out of range (m) = manual integration 1219C10A.D HP121001.M Thu Dec 20 09:11:13 2001 Page 1

NYC-WTC 000002296