WTC sample cover sheet, Dec 31 2001

NYC 9/11 Public Portal Document

Quantitation Report (Not Reviewed)

Data File : C:\HPCHEM\1\DATA\Oldec3l\1231R40.D Vial: 9 Acq On : 31 Dec 2001 12:30 pm Operator: 206-BH Sample : ref 40 Inst : GC/MS Ins Misc Multiplr: 1.00 MS Integration Params: LSCINT.P Quant Time: Dec 31 13:09 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 1069107 5.00 ug/L 0.07 22) CHLOROBENZENE-D5 21.01 117 1134804 5.00 ug/L 0.05 50) 1,4-DICHLOROBENZENE-D4 26.16 152 861955 5.00 ug/L 0.05

System Monitoring Compounds 2) 1,2-DICHLOROETHANE-D4 13.62 65 347221 4.93 ug/L 0.03 Spiked Amount 5.000 Recovery = 98.600 3) 4-BROMOFLUOROBENZENE 23.59 174 518745 6.32 ug/L 0.05 Spiked Amount 5.000 Recovery = 126.400 23) TOLUENE-D8 17.74 98 1375553 4.57 ug/L 0.07 Spiked Amount 5.000 Recovery = 91.400

Target Compounds Qvalue 4) DICHLORODIFLUOROMETHANE 4.47 85 1394290 39.97 ug/L 100 5) CHLOROMETHANE 4.97 50 1363728 62.86 ug/L 97 6) VINYL CHLORIDE 5.13 62 1076108 49.88 ug/L 95 7) BROMOMETHANE 6.07 94 1017236 53.91 ug/L 100 8) CHLOROETHANE 6.18 64 763127 51.59 ug/L 99 9) TRICHLOROFLUOROMETHANE 6.74 101 1984875 42.39 ug/L 99 10) ACETONE 7.65 43 252444 35.20 ug/L 99 11) 1,1-DICHLOROETHENE 7.99 61 3066404 50.47 ug/L 94 12) METHYLENE CHLORIDE 8.97 49 2665150 45.25 ug/L 91 13) METHYL TERT BUTYL ETHER 9.26 73 2443950 31.44 ug/L 97 14) TRANS-1,2-DICHLOROETHENE 9.62 61 3111811 47.22 ug/L 90 15) 1,1-DICHLOROETHANE 10.50 63 3688012 44.87 ug/L 98 16) 2-BUTANONE (MEK) 11.32 43 386063 30.47 ug/L 93 17) 2,2-DICHLOROPROPANE 11.70 77 3351945 49.49 ug/L 99 18) CIS-1,2-DICHLOROETHENE 11.80 96 2047181 44.45 ug/L 85 19) CHLOROFORM 12.12 83 3795942 48.40 ug/L 100 20) BROMOCHLOROMETHANE 12.50 49 1610660 43.28 ug/L 82 21) 1,2-DICHLOROETHANE 13.83 62 2289704 43.38 ug/L 100 24) 1,1,1-TRICHLOROETHANE 13.01 97 3214086 46.11 ug/L 98 25) 1,1-DICHLOROPROPENE 13.35 75 3074792 44.70 ug/L 97 26) CARBON TETRACHLORIDE 13.59 117 2938581 49.57 ug/L 100 27) BENZENE 13.94 78 8221793 41.12 ug/L 97 28) TRICHLOROETHENE 15.21 95 2277039 42.51 ug/L 93 29) 1,2-DICHLOROPROPANE 15.55 63 2119868 38.06 ug/L 99 30) DIBROMOMETHANE 16.19 174 830332 41.88 ug/L 91 31) BROMODICHLOROMETHANE 16.06 83 2775161 43.25 ug/L 97 32) 2-CHLOROETHYL VINYL ETHER 16.55 63 602999 29.15 ug/L 91 33) Methyl iso-butyl ketone 16.62 58 293400 27.58 ug/L 98 ------------------------------------------------------------------------- (##) = qualifier out of range (m) = manual integration 1231R40.D HP121001.M Mon Dec 31 13:09:10 2001 Page 1

NYC-WTC 000002853