NYC-WTC_000232785

NYC 9/11 Public Portal Document

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lOth 10th 10th Client ID: Floor-01 Floor-02 Floor-03 Lab No.: 013678 03 013679 03 013680 03 Date Sampled: 29-Mar-2003 29-Mar-2003 29-Mar-2003 Component MDL Units

Total Tetrachlorodibenzofurans pg <3.3 2.7 <1.1 Total Pentachlorodibenzofurans <1.9 <2.1 Total Hexachlorodibenzofurans <2.5 <2.4 <2.6 Total Heptaehlorodibenzofurans <4.2 <5.5 <2.1 Octachlorodibenzofuran 8.3 7.0 <2.6 Total Tetrachlorodibenzo-p-dioxins 10 4.8 22 Total Pentachlorodibenzo-p-dioxins 5.5 Total Hexachlorodibenzo-p-dioxins <4.7 3.0 <2.6 Total Heptachlorodibenzo-p-dioxins <5.3 6.0 3.0 Octachlorodibenzo-p-dioxin <17 15 7.3 Internal Recoveries % 2,3,7,8-T4CDF-13C12 n 80 80 2,3,7,8-T4CDD-13C12 86 97 86 1,2,3,7.8-P5CDF-13C12 n 86 88 1,2,3.7,8-P5CDD-13C12 81 99 102 1,2,3,4.7,8-H6CDF-13C12 93 117 111 1,2,3,6.7,8-H6CDD-13C12 88 112 106 1,2,3,4.6,7,8-H7CDF-13C12 94 120 115 1,2,3,4.6,7,8-H7CDD-13C12 94 125 122 OCDD-13C12 83 108 114

2,3,7,8-C14-Dibenzoftjran (DBS) pg <3.3 <2.7 <1.1 2,3,7,8-C14-Dibenzo-p-dioxin <3.9 <1.4 <1.9 1,2,3,7.8-C15-Dibenzofuran <1.9 <2.2 <2.1 2,3,4,7,8-C15-Dibenzofuran <2.0 <2.5 <2.2 l,2,3,7-8-C15-Dibenzo-p-dioxin <2.4 <1.5 1,2,3,4.7,8-C16-Dibenzofuran <2.3 <2.2 <2.4 1,2,3,6,7,8-C16-Dibenzofuran <2.3 <2.2 <2.4 2,3,4,6,7,8-C16-Dibenzofuran <2.7 <2.5 <2.8 1,2,3,7,8,9-C16-Dibenzofuran <2.9 <2.8 <3.0 l,2,3,4,7,8-C16-Dibenzo-j>dioxin <2.7 <2.8 <2.6 1,2,3,6,7,8-C16-Dibenzo-p-dioxin <2.7 <2.8 <2.6 l,2,3,7,8,9-C16-Dibenzo-p-dioxin <2.6 3.0 <2.5 1,2,3,4,6,7,8-C17-Dibenzofuran <3.9 <5.1 <2.0 1,2,3,4.7,8,9-C17-Dibenzofuran <3.2 <3.2 <2.3 1,2,3,4,6,7,8-C17-Dibenzo-p-dioxin <5.3 6.0 3.0 1,2,3,4,6,7,8,9-C18-Dibenzofuran 8.3 7.0 <2.6 1,2,3,4.6,7,8,9-C18-Dibenzo-p-di oxin <17 15 7.3

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

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CITY_21MC100_009480072

NYC-WTC_000232797