WTC sample cover sheet, Dec 28 2001

NYC 9/11 Public Portal Document

Quantitation Report (Not Reviewed)

Data File : C:\HPCHEM\1\DATA\01dec28\1228R40.D Vial: 9 Acq On : 28 Dec 2001 11:40 am Operator: 206-BH Sample : ref 40 Inst : GC/MS Ins Misc Multiplr: 1.00 MS Integration Params: LSCINT.P Quant Time: Dec 28 12:19 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 14.44 114 821206 5.00 ug/L 0.09 22) CHLOROBENZENE-D5 21.05 117 915074 5.00 ug/L 0.09 50) 1,4-DIFHLOROBENZENE-D4 26.21 152 721555 5.00 ug/L 0.10

System Monitoring Compounds 2) 1,2-DICHLOROETHANE-D4 13.67 65 285905 5.29 ug/L 0.09 Spiked Amount 5.000 Recovery = 105.80% 3) 4-BROMOFLUOROBENZENE 23.62 174 425007 6.74 ug/L 0.09 Spiked Amount 5.000 Recovery = 134.80% 23) TOLUENE-D8 17.78 98 1059830 4.37 ug/L 0.10 Spiked Amount 5.000 Recovery = 87.40%

Target Compounds Qvalue 4) DICHLORODIFLUOROMETHANE 4.49 85 1053063 39.30 ug/L 99 5) CHLOROMETHANE 4.99 50 1072446 64.36 ug/L 97 6) VINYL CHLORIDE 5.14 62 859862 51.89 ug/L 96 7) BROMOMETHANE 6.08 94 894632 61.72 ug/L 99 8) CHLOROETHANE 6.22 64 690572 60.78 ug/L 97 9) TRICHLOROFLUOROMETHANE 6.75 101 1638482 45.55 ug/L 98 10) ACETONE 7.67 43 216368 39.28 ug/L 93 11) 1,1-DICHLOROETHENE 8.03 61 2258490 48.40 ug/L 94 12) METHYLENE CHLORIDE 9.00 49 2130401 47.09 ug/L 89 13) METHYL TERT BUTYL ETHER 9.29 73 2124342 35.58 ug/L 97 14) TRANS-I,2-DICHLOROETHENE 9.65 61 2372408 46.87 ug/L 88 15) 1,1-DICHLOROETHANE 10.54 63 2884864 45.69 ug/L 99 16) 2-BUTANONE (MEK) 11.36 43 323236 33.21 ug/L 93 17) 2,2-DICHLOROPROPANE 11.73 77 2541379 48.85 ug/L 99 18) CIS-1,2-DICHLOROETHENE 11.83 96 1622610 45.87 ug/L 85 19) CHLOROFORM 12.16 83 2961555 49.16 ug/L 100 20) BROMOCHLOROMETHANE 12.53 49 1258332 44.02 ug/L 85 21) 1,2-DICHLOROETHANE 13.86 62 1834934 45.26 ug/L 100 24) 1,1,1-TRICHLOROETHANE 13.04 97 2428681 43.21 ug/L 98 25) 1,1-DICHLOROPROPENE 13.38 75 2247702 40.52 ug/L 97 26) CARBON TETRACHLORIDE 13.62 117 2221683 46.47 ug/L 99 27) BENZENE 13.98 78 6259044 38.82 ug/L 98 28) TRICHLOROETHENE 15.24 95 1715993 39.73 ug/L 92 29) 1,2-DICHLOROPROPANE 15.58 63 1639916 36.52 ug/L 100 30) DIBROMOMETHANE 16.24 174 674504 42.19 ug/L 80 31) BROMODICHLOROMETHANE 16.09 83 2191580 42.35 ug/L 98 32) 2-CHLOROETHYL VINYL ETHER 16.59 63 492893 29.55 ug/L 91 33) Methyl iso-butyl ketone 16.65 58 242471 28.27 ug/L 99 ------------------------------------------------------------------------- (#) = qualifier out of range (m) = manual integration 1228R40.D HP121001.M Fri Dec 28 12:19:40 2001 Page 1

NYC-WTC 000002756