NYC-WTC_000220089

NYC 9/11 Public Portal Document JUN-11-2002 18=59 DEUTSCHE BANK 212 469 3210 P.17

AMBIENT GROUP Dioxlns/Furaos, HRGC/BBMS (8290) CUent Sample ID: 211909-llD

Lot-Sample G2D190191-011 Work Order#.,.; EX6VNIAA Matrix—: SOLED Date Sampled...: 04/18/02 Dote RjtcelvorS..! 04/19/02 Knxtrnment; 5D5 Prep Date—j 04/19/02 Analysis Date.; 04/24/02 Units...-; pg'S Prep Sabch 2109509 DllmlOB Fodor: 1 % Molrtwe:

DEIECTtON TEF TOQ LIMIT FACTOR CONCENTRATION parameter RESULT

23.7,8-TCDB 530 1.000 530.000000 1,2,3,7,8-PeCDD 1500 0.500 750.000000 i,23A7.6-HxCDD 1100 0.100 110.000000 l,2J,5,7,«-BtxCDD 2500 0.100 250.000000 1,23,7,8,9-HxCDD 1800 0.100 180.000000 1,2,3,4,5.7.8-HpCDD 18000 O.OlO 180.000000 OCDD S5000 E 0.001 S5.000O0O 2,3,73-TCDF 3700 CON 0.100 370.000000 1,23.7,8-PeCDF 4000 0.050 200.000000 233,7.8-Poa)F 5100 0300 3,000.000000 1,23,4,7,8-HiCDF 5900 0.100 590.000000 143.6,7A-HXCDF 5400 0.100 540.000000 2,3,4,5,7,8-HxCDF 5900 0.100 590.000000 1,23.7A9-HxCDF 430 0.100 43.000000 l,2,3,4,5.7,«.HpCD)? 32000 E O.OlO 320.000000 U3,4.7,8,9-HpCDF 4000 0.010 40.000000 OCDF 15000 0.001 25.000000 Total TEQ Concentrnilon 7^85.000000 PERCENT RECOVERY INTERNAL STANDARDS RECOVERY UMITS

13C-2,3,7,8-TCDD 6g 40-135 13C-l.X3,7.8-PeCDD 58 40-135 1301,23,5,7.8-HxCDD 59 40-135 13C-13.3,4,6,7,8-HpCDD 52 40 - 135 I3C.OCDD 65 40-135 13C-2.3.7,8.TCDF 59 40-135 13C-l,2.3.7,8-PoCDF 58 40-135 13C-1,2,3,4,7.8-HsCDF 58 40 -135 13C-l,23,4,5.7.8-HpCDF 50 40- 135

Notos; TEF veluei nre cited in U.S, Bevbennieiaa] Fral«etl<m Ageaoy, (19SS) Isudm ptooeduns ibr ndmatfag rides tssodiud with oxpoguiet to mlxuns eteUerinaBd -ditemofliniBa (CODs Iind CDFb) uuj 1989 update. U.9. Envinnmenal Preicedm Agency, Rist AraeiraMBi feimn. WasMngtmi, tXS

CON Confirmation analysis.

E fiarinuted result. Result concentration exceeds the calibration range.

SuJne.TSQArr Bjv.O 1 in0/20DI

CITY_21MC1OO_OO2911674

NYC-WTC_000220096