NYC-WTC_000232785

NYC 9/11 Public Portal Document

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11th Floor 11th Floor 11th Floor Client ID: Up-01 Up-02 Up-03 Lab No.: 01368103 013682 03 013683 03 Date Sampled: 29-Mar-2003 29-Mar-2003 29-Mar-2003 Component MDL Units

Total Tetrachlorodibenzofurans pg 3.0 <1.3 Total PenLachlorodibenzofurans <3.2 <2.8 <2.6 Total Hexachlorodibenzofurans <2.6 <2.4 <1.8 Total Heptaehlorodibenzofurans <2.5 <2.5 <2.3 Octachlorodibenzofuran 7.3 3.1 <2.3 Total Tetrachlorodibenzo-p-dioxins 15 <2.1 <2.7 Total Pentachlorodibenzo-p-dioxins <3.1 <2.2 <2.2 Total Hexachlorodibenzo-p-dioxins <2.7 <2.6 <1.8 Total Heptachlorodibenzo-p-dioxins 12 3.9 <3.1 Octachlorodibenzo-p-dioxin 46 9.4 7.1 Internal Recoveries % 2,3,7,8-T4CDF-13C12 81 81 74 2,3,7,8-T4CDD-13C12 88 88 81 1,2,3,7.8-P5CDF-13C12 78 90 81 1,2,3,7,8-P5CDD-13C12 86 105 88 1,2,3,4.7,8-H6CDF-13C12 94 104 101 1,2,3,6.7,8-H6CDD-13C12 92 102 97 1,2,3,4.6,7,8-H7CDF-13C12 96 111 94 1,2,3,4.6,7,8-H7CDD-13C12 95 118 89 OCDD-13C12 76 118 72

2,3,7,8-C14-Dibenzofuran (DBS) pg <3.8 2,3,7,8-C14-Uibenzo-p-dioxin <3.4 <2.1 <2.7 1,2,3,7.8-C15-Dibenzofuran <2.7 <2.6 2,3,4,7,8-C15-Dibenzofuran <3.2 <2.9 <2.7 l,2,3,7.8-C15-Dibenzo-p-dioxin <3.1 <1.4 <2.2 1,2,3,4.7,8-C16-Dibe.nzofuran <2.4 <2.2 <1.6 1,2,3,6,7,8-C16-Dibenzofuran <2.4 <2.2 <1.6 2,3,4,6,7,8-C16-Dibenzofuran <2.8 <2.6 <1.9 1,2,3,7,8,9-C16-Dibenzofuran <3.0 <2.8 <2.0 l,2,3,4,7,8-C16-Dibenzo-j>dioxin <2.7 <2.7 <1.8 1,2,3,6,7,8-C16-Dibenzo-p-dioxin <2.7 <2.7 <1.8 l,2,3,7,8,9-C16-Dibenzo-p-dioxin <2.6 <2.6 <1.7 1,2,3,4,6,7,8-C17-Dibenzofuran <4.7 <2.0 1,2,3,4.7,8,9-C17-Dibenzofuran <2.8 <2.6 1,2,3,4,6,7,8-C17-Dibenzo-p-dioxin 6.3 3.9 <3.1 1,2,3,4,6,7,8,9-C18-Dibenzofuran 7.3 3.1 <2.3 1,2,3,4.6,7,8,9-C18-Dibenzo-p-di oxin 46 9.4 7.1

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

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CITY_21MC100_009480073

NYC-WTC_000232798