NYC-WTC_000200039

NYC 9/11 Public Portal Document

JUN-11-2002 13=00 DEUTSCHE BANK 212 469 3210 P.22

AMBJJENT GROUP DioxtQS/Furai»,BRGC/HRMS (8290) Oient Sample ID: 211909-12D-P

Lot-Sample tf...; Q2D230154-012 Wk Order «.-■ EX9791AC Matrix...; SOUD Date Sampled.-; Date Received..: 04/23/02 lowudieat; 7»5 04/22/02 'Prep Datt-.-i 04/25/02 AaRtyel* Date-! 04/29/02 Unite—: p^B - Prep Batch H...: 2115447 Dilution Victor; 1 % Moteturu

DETECTION TEF TEQ UMIT FACTOR conceotrahon PARAMEISR BESULT

23,7>TCDD 380 1.000 380.000000 143J,8-PeCnD 1200 0300 600.000000 1,23,4,7,8-HxCDD 1300 0.100 130300000 1,23,6,7,8-HiCDD 1900 0.100 190.000000 1.2333,9-HxCDD 1700 0.100 170.000000 133.4,<33-HpCDD 12000 0.010 120.000000 OCDD 35000 0.001 35.000000 23,7,8-TCDF 1700 CON 0.100 170300000 133,73-PeCDF 2200 0.050 110.000000 23,4,73-PcCDF 3500 0.500 1,800.000000 133.4,73-HiCDF 4400 0.100 440.000000 133,6.7,S-HxCDK 3700 0.100 370.000000 23,4,6,7,8-HxCDF 4000 0.100 400.000000 i33,7A7-HiCDF ICO 0.100 26.000000 1334,6.7,8-HpCDF 16000 0.010 160.000000 i,23,4,7,8,9-apCDF 1900 0.010 19.000000 OCDF 8300 O.OOl 8.300000 Total TEQ Conccatratfoa 5,128300000 PERCENT RECOVERY INTERNAL standards RECOVERY UMirS

13C-23,73-TCDD 80 40-135 l3C-133.7.8-PeCDD 73 40-135 13C-133,6.7,8-HxCDD 72 40-135 13C.133,4,6.7.8-HpCDD 69 40-135 13C.OCDD 77 40-135 13C-2,3,7,8-TCDF 75 40 -135 1301,23,7,S-PeCDF 77 40 -135 13C.l33.4.7,8-HxCDP 75 40 -135 130-1,23.4,6,7.8-HpCDF 67 40-135

Notes _____ TEF values »w died In U.S. EeviraiiDenUl teoieotUm Ajeacy, QW) tentm proooduns to sstiraiilngriaSo sawoisicd with enpajut*. to Bibturei et’ohtmiiBMd ilib«u».p4i«riM uul -dlbcMofUnm, (CDD( «u) OKPs) rad 1989 update. US. Eitvjiamnaila] Pnleetlra Agcscy. SM AJsewnoni ftmnn, WiuAtegWB. DC; EPA/«23/3-89«lS,

CON ConfiniBtion analysis.

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CITY_21MC100_009292479

NYC-WTC_000200039