NYC-WTC_000232785

NYC 9/11 Public Portal Document

LDDDCD"DTDiDmDeDsC aNDeDwa □RnoDmDaDnD.nBDoDindn □lDtDaDlDiDcD"DlD4DPDADSD

9th 9th 9th Client ID: Floor-01 Floor-02 Floor-03 Lab No.: 013675 03 013676 03 013677 03 Date Sampled: 29-Mar-2003 29-Mar-2003 29-Mar-2003 Component MDL Units

Total Tetrachlorodibenzofurans pg 9.6 5.1 3.3 Total PenLachlorodibenzofurans <7.5 <3.9 13 Total Hexachlorodibenzofurans <3.8 2.5 8.3 Total Heptaehlorodibenzofurans 4.6 <5.4 <3.5 Octachlorodibenzofuran 950 5.1 4.1 Total Tetrachlorodibenzo-p-dioxins 37 7.3 26 Total Pentachlorodibenzo-p-dioxins <14 <6.0 12 Total Hexachlorodibenzo-p-dioxins 3.3 16 18 Total Heptachlorodibenzo-p-dioxins 20 5.8 <4.5 Octachlorodibenzo-p-dioxin 61 27 13 Internal Recoveries % 2,3,7,8-T4CDF-13C12 77 73 83 2,3,7,8-T4CDD-13C12 81 80 92 1,2,3,7.8-P5CDF-13C12 73 79 87 1,2,3,7,8-P5CDD-13C12 80 87 94 1,2,3,4.7,8-H6CDF-13C12 76 87 103 1,2,3,6.7,8-H6CDD-13C12 80 85 101 1,2,3,4.6,7,8-H7CDF-13C12 70 85 102 1,2,3,4.6,7,8-H7CDD-13C12 67 86 105 OCDD-13C12 51 71 88

2,3,7,8-C14-Dibenzofuran (DB5) pg <9.5 5.1 <3.8 2,3,7,8-C14-Dibenzo-p-dioxin <4.4 <4.2 <1.7 1,2,3,7.8-C15-Dibenzofuran <3.9 <1.4 2,3,4,7,8-C15-Dibenzofuran <7.6 <4.0 2.5 l,2,3,7-8-C15-Dibenzo-p-dioxin <5.4 <5.7 <1.5 1,2,3,4.7,8-C16-Dibe.nzofuran <2.3 2.5 2.0 1,2,3,6,7,8-C16-Dibenzofuran <2.3 1.7 2,3,4,6,7,8-C16-Dibenzofuran <2.7 <1.5 1.8 1,2,3,7,8,9-C16-Dibenzofuran <2.9 <1.6 l,2,3,4,7,8-C16-Dibenzo-j>dioxin <2.4 <2.3 <1.4 1,2,3,6,7,8-C16-Dibenzo-p-dioxin <2.4 <2.3 1.6 l,2,3,7,8,9-C16-Dibenzo-p-dioxin <2.3 <2.2 <1.6 1,2,3,4,6,7,8-C17-Dibenzofuran <52 <4.7 <3.2 1,2,3,4.7,8,9-C17-Dibenzofuran <4.1 <1.5 <2.5 1,2,3,4,6,7,8-C17-Dibenzo-p-dioxin 11 <6.0 <4.5 1,2,3,4,6,7,8,9-C18-Dibenzofuran 950 10 4.1 1,2,3,4.6,7,8,9-C18-Dibenzo-p-di oxin 61 27 13

2,3,7,8-TCDF (DB225) pg Pending Pending Pending Internal Recoveries % 2,3,7,8-TCDF-13C12 Pending Pending Pending

RDCDlDiDeDnDtD:DPDhDiDlDiDpD □ADnDaDlDyDtDiDcDaDlD □SDeDrDvDilcDeDsD DIDnCcD □ PDrDoDjDeEcDtD:DJDLDCD DEDna

CITY_21MC100_009480071

NYC-WTC_000232796