NYC-WTC_000232785

NYC 9/11 Public Portal Document

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

7th 7th 7th Client ID: Floor-01 Floor-02 Floor-03 Lab No.: 013669 03 013670 03 013671 03 Date Sampled: 29-Mar-2003 29-Mar-2003 29-Mar-2003 Component MDL Units

Total Tetrachlorodibenzofurans pg <3.8 <2.1 <1.7 Total PenLachlorodibenzofurans <4.9 <3.6 <2.2 Total Hexachlorodibenzofurans <1.7 <1.3 <1.1 Total Heptaehlorodibenzofurans <2.1 <1.8 Octachlorodibenzofuran 3.9 <2.0 <1.4 Total Tetrachlorodibenzo-p-dioxins 10.0 <2.6 <1.6 Total Pentachlorodibenzo-p-dioxins <3.5 <2.3 Total Hexachlorodibenzo-p-dioxins <3.0 Total Heptachlorodibenzo-p-dioxins 6.7 3.3 <1.7 Octachlorodibenzo-p-dioxin 20 7.9 <4.3 Internal Recoveries % 2,3,7,8-T4CDF-13C12 62 53 58 2,3,7,8-T4CDD-13C12 69 61 67 1,2,3,7.8-P5CDF-13C12 70 68 75 1,2,3.7,8-P5CDD-13C12 78 76 86 1,2,3,4.7,8-H6CDF-13C12 90 89 97 1,2,3,6.7,8-H6CDD-13C12 90 83 96 1,2,3,4.6,7,8-H7CDF-13C12 90 87 101 1,2,3,4.6,7,8-H7CDD-13C12 91 89 105 OCDD-13C12 74 77 91

2,3,7,8-C14-Dibenzo&ran (DB5) pg <3.8 <2.1 <1.7 2,3,7,8-C14-Dibenzo-p-dioxin <4.2 <2.6 <1.6 1,2,3,7.8-C15-Dibenzofuran <4.9 <3.6 <2 2 2,3,4,7,8-C15-Dibenzofuran <5.0 <3.7 <2.3 l,2,3,7-8-C15-Dibenzo-p-dioxin <3.5 <2.5 <2.3 1,2,3,4.7,8-C16-Dibe.nzofuran <1.5 <1.2 <1.00 1,2,3,6,7,8-C16-Dibenzofuran <1.5 <1.2 <0.99 2,3,4,6,7,8-C16-Dibenzofuran <1.8 <1.4 <1.2 1,2,3,7,8,9-C16-Dibenzofuran <1.9 <1.5 <1.2 l,2,3,4,7,8-C16-Dibenzo-j>dioxin <2.1 <1.9 1,2,3,6,7,8-C16-Dibenzo-p-dioxin <2.1 <1.9 l,2,3,7,8,9-C16-Dibenzo-p-dioxin <2.0 <1.8 1,2,3,4,6,7,8-C17-Dibenzofuran <1.9 <1.6 <1.2 1,2,3,4.7,8,9-C17-Dibenzofuran <1.7 <1.4 <1.3 1,2,3,4,6,7,8-C17-Dibenzo-p-dioxin 4.2 3.3 <1.7 1,2,3,4,6,7,8,9-C18-Dibenzofuran 3.9 <2.0 <1.4 1,2,3,4.6,7,8,9-C18-Dibenzo-p-di oxin 20 7.9 <4.3

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

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

CITY_21MC100_009480069

NYC-WTC_000232794