NYC-WTC_000220089

NYC 9/11 Public Portal Document JUN-11-2002 10:58 DEUTSCHE BANK 212 469 3210 P.16

AMBIENT GROUP Dlozlns/Furaas, HRGC/HRMS (8290) CUent Sample HD: 2S190M0D

Lot-Sasnple O2D190191-010 Waric Order #..t EX6VM1AA Matrix..) SOLID Date Sampled...; 04/18/02 Dale Received.) 04/19/02 Knamamentt 3D5 Prep 8>aia_._.i 04/19/02 Analysts Date..: 04/24/02 Wts-.: Pg/g Prep Batch 2109509 DUutlon Pactori 1 % Moisture:

DETECTION TBF TEQ LaflT FACTOR CONCENTRATION PARAMETER RESULT

2,3,7,8-TCDD; 8<!0 1.000 840.000000 l,23,7,8-?eCDD 2200 0.500 1400400000 1,2,3,4,7,8-HkCDD 2000 0.100 200400000 I,2A6,7,8-HsC©© 4200 0.100 420.000000 U3,7.4,9-EkCD® 2iS00 0.100 260.000000 l,2,3A6,7,S-HpCDD 30000 0.010 300.000000 OCDD 72000 0401 72.000000 2,3,7,8-TCDF 4600 CON 0.100 460400000 1A3.W«CDF S300 0.050 260400000 2,3,4,7,8-?eC®®' 6400 0.500 3^00400000 2,2p3.4,?3-HxCDlR 13000 0.100 MOO.OOOOOO 1,23,6,7,8-HxCDF 8200 0.100 820400000 2.3,4.6,7,8-HiCDF 20000 0.100 1,000400000 1,2,3,7,8,9-HiCDF 510 0.100 51400000 1,23,4,6,7,8-HpCDF 55000 0.010 550.000000 1,2,3,4,7,8,9-KpCDF 5200 0.010 52.000000 OCDF 4S000 0.001 45.000000 Total TEQ CoBcentrallon 10,930.000000 PERCENT RECOVERY internal standards RECOVERY uwrrs

13C.23.7,8-TCDD 54 40 - 135 130-1,2.3,7.8.?eCDD 53 40 - 135 !3CU,3.6,7,8-HxCDD 58 40.135 130-1.23,4.6.7,8-HpCDD 60 40 -135 13C-OCDD 61 40 -135 1302,3,7,8-TCDf 42 40 -135 13O1.23.7.8-PeCDF 54 40-135 13OU3,4,7,8-HxCDP 48 40 -135 1301.2.3.4,6,7,8-HpCDF 58 40 <■ 135

Notes: TEP v^uat me died tn U.fi. ISnvIxniunQnlal Piococdoa Agency, (1989) InlmlHi pmeedunt Ibt tsdmadng ricks oiacclatol wtih ec^o&erai to mucniies ofchteriasced ditKmio5>-dIojdm end -dibounRimno (CDDs and CDF«) and t989 updala, U.S. Envirotmeatal Proteetjon Awnoy. Risk AsMsnramt tomm. WasUnpieB. DC: EPA/<23/3-a9/0l«.

CON Conllnnation analysis.

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CITY_21MC1OO_OO2911673

NYC-WTC_000220095