NYC-WTC_000220172

NYC 9/11 Public Portal Document

JUN-11-2002 10:58 DEUTSCHE BANK 212 469 3210 P.15

AMBIENT GROUP Dtoilns/Furans, HRGC/HRMS (8290) ' Client Sample Ot 211909-03D

Lot-Sample i G2D190191 -005 WorkOnJer#-: EX6VG1AA Matrix-..; SOLID Date Sampled-.! 04/18/02 Dau Received..: 04/19/02 Inetrumenfc 5D5 Prep Dale__ : 04/19/02 Analysis Date-; 04/24/02 Unlra.—: Pg/g Prep Batch 2109509 Dllutloa Tieton 1 % Moisture:

DETBCnON TBF TEQ LIMIT FACTOR CONCENTRATION PARAMETER RESULT

2.3,7,8-TCDD 390 1.000 390.000000 1,23,7,8-PeCPD 1200 0.500 600.000000 14;33.7,8-HxCDD 1200 0.100 120.000000 1,23,6,7,8-HiCDD 2400 0.100 240.000000 1,23,7,8,9-HxCDD 1800 0.100 180.000000 1,2,3,4,6,7,8-HpCDD 14000 0.010 140.000000 OCDD 27000 0,001 27.000000 23,7,8-TCDF 2500 CON 0.100 250.000000 1,23,7,8-PcCDF 3500 0.050 180.000000 2,3,4,73-Fed>F 5500 0.500 2,800.000000 143,4,7,g-IIxCDF £000 0.100 6004)00000 1,23,6,7,8-HxCDF 5400 0.100 540.000000 233,6,7,8-HiCDP 5800 0.100 580.000000 1,23,7,8,9-HxCDF 440 0.100 44.000000 1,23.4,6,7,8-HpCDF 26000 0.010 260.000000 iaj.4,7,8,9-HpCDF 3000 0.010 30.000000 OCDF 23000 0.001 23.000000 Total TEQ Concentration 7,004.000000 PERCENT RECOVERY tMTERNAL STANDARDS RECOVERY LtMITS

13C-23,7,8.TCDD 62 40 - 135 13C-l,Z,3.7,8-PeCDD 61 40-135 13C-l,2,3,6,7,g-HxCDD 57 40 - 135 13C-1.2.3.4.6.7,8-Ift)CDD 76 40 - 135 13C-OCDD 97 40-135 l3C-2,3,7,8-TCDF 66 40-135 l3C-l,2,3,7,8-PeCDr 71 40 -135 130-1,2,3,4,7,8-HxCDF 70 40 -135 130-1,2,3,4,6,7.8-HpCDF 98 40-135

Notes: TEF value J Mt eliod Io U.S. EoviramneniaJ frotcaion Agency. (1989) IWertn pipceitots tor estlBuUsg dab usocbied wl* eeposures to mlmms oteUoriittiad dnttB»bnos(COI>t asdCDFg) end 1989 npdeie. UX EnvttnnroeBBJ Plotecdca A^enoy, Rlji ABoeaeai fofuns, WwUnsJon, DC:

CON Coafinnacion analysis.

SBL^oid.-reQJtrr Rev.# ii/iocoa

CITY_2IMC100_002832736

NYC-WTC_000220172