NYC-WTC_000220089

NYC 9/11 Public Portal Document JlJN-11-2002 19=00 DEUTSCHE BANK 212 469 3210 P.21

AMBIENT GROUT nioxlDJt/Furans, HRGCZHRMS (8290) Cheat Sample ID: 211909-35T>

Lot-Sampla S-: Q2D230154 - 009 Work Orders..: BX9721AC Matrix-.; SOLID Dale Saniplad—: 04/22/02 □ala Rsczivefl-. 04/23/02 Instrument: 7D5 Prep Data__; 04/25/02 Analysis ITa to-; - 04/29/02 Units—: pg/g Prep Batch 2115447 QilatlaB Faclor; I % Moisture;

DETECTION TEF TEQ UMTT FACTOR CONCENTRATION PARAMETBR RESULT

2,3,7.8-TCDD 57 1.000 57.000000 2,2^.7p8-PeCDD 120 0.500 60.000000 1,233.7,8-HxCDD 100 0.100 10.000000 l,23,6,7,&-iaxCDD 160 0.100 16.000000 1,2,3,7,8,9-HiCDD 140 0.100. 14.000000 1A3,4,6,7,S-HpCDD 1100 0.010 11.000000 OCD® 4200 0.001 42200000 23,7,8-TCDF 320 CON 0.100 32.000000 HJl,3,7Al’«CDr 270 0.050 14.000000 2,3,4,7,8-PeCDF 370 0.500 180.000000 1,23.4,7,&-HjcCDF 270 0.100 27.000000 1,23,6,73-HxCDF 250 0.100 254)00000 233,6.7,8-HxCDF 240 0.100 244)00000 1,23,7,3,9-HxCDF 22 0.100 2.200000 1,23.4.6,7,8-HpCDF 880 JA 0.010 8.800000 133,4,7,8,9-HpCDF 120 0.010 IJOOOOO OCDF 310 0.001 0.510000 Total TEQ Concentration 486.910000 PERCENT RECOVERY INTERNAL STANDARDS RECOVERY UMTS

13C-2.3.7,8-TCDD 76 40-135 13C-1.2,3,7,8-PeCDD 68 40-135 13C-1.2.3.6.7,8-HxCDD 76 40 -135 130-1^3,4,6,7,g-HpCDD 70 40-135 13C-OCDD 80 40-135 13C-2,3,7,8-TCDF 68 40-135 13C-1.2.3.7,g-P(!CDF 67 40-135 13C-1.2,3,4,7,8-HxCDF 72 40 -135 13C-I,2,3,4.6.7,8-HpCDF 71 40-135

Notes: TCF values are cited In U.S. EnviromnenuJ Frotcocton Agency, (1989) inicrim pmotdurts Eh estlrnatlng rtsb ajscclaad trilh exposure, lo mixbnt ofcMoiinaaal dlbenro-p<Uoxlo3 and .dlbatnafliESwi (CODs and CDFi) oad 1969 update. U& Envtrowneatal FioiactloB Agency, Rlik Assjasnient (tonun, WsihlngUn, DC; EPA/«5O-89A)16.

CON ConOnnation analysis.

JA The analyte was positively idantifled, but the quantitation is an esdniaie.

SMjSbS.TBQ.apT Bot.O ll/10Z200<

CITY_21MC100_002911667

NYC-WTC_000220089