NYC-WTC_000232821

NYC 9/11 Public Portal Document

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R02090957 R02090957 R02090957 Client ID: 13A 14A 15A Lab No.: 060326 02 060327 02 060328 02 Date Sampled: 12-Sep-2002 12-Sep-2002 12-Sep-2002 Component Units

Total Tetrachlorodibenzofurans pg 2.8 17 170 Total PenLachlorodibenzofurans <3.5 39 40 Total Hexachlorodibenzofurans <2.6 29 19 Total Heptachlorodibenzofurans <10 <18 <20 Octachlorodibenzofuran <4.5 17 16 Total Tetrachlorodibenzo-p-dioxins 5.7 83 160 Total Pentachlorodibenzo-p-dioxins <2.0 65 37 Total Hexachlorodibenzo-p-dioxins <2.6 69 41 Total Heptachlorodibenzo-p-dioxins 10 50 25 Octachlorodibenzo-p-dioxin 28 110 150 Internal Recoveries % 2,3,7,8-T4CDF-13C12 88 98 66 2,3,7,8-T4CDD-13C12 83 88 63 1,2,3,7.8-P5CDF-13C12 94 105 66 1,2,3,7,8-P5CDD-13C12 100 106 65 1,2,3,4.7,8-H6CDF-13C12 99 103 72 1,2,3,6.7,8-H6CDD-13C12 99 98 71 1,2,3,4.6,7,8-H7CDF-13C12 96 96 70 1,2,3,4.6,7,8-H7CDD-13C12 99 94 69 OCDD-13C12 93 96 70

2,3,7,8-C14-Dibenzofuran (DB5) pg <2.8 <11 <25 2,3,7,8-C14-Dibenzo-p-dioxin <2.8 <3.3 1,2,3,7.8-C15-Dibenzofuran <3.4 <5.6 <4.6 2,3,4,7-8-C15-Dibenzofuran <3.6 <8.4 <4.8 l,2,3,7.8-C15-Dibenzo-p-dioxin <2.0 <3.5 <3.0 1,2,3,4.7,8-C16-Dibe.nzofuran <2.4 9.3 7.9 1,2,3,6,7,8-C16-Dibenzofuran <2.3 <6.1 <4.5 2,3,4,6,7,8-C16-Dibenzofuran <2.7 7.0 <5.4 1,2,3,7,8,9-C16-Dibenzofuran <2.9 <2.9 <5.7 l,2,3,4,7,8-C16-Dibenzo-j>dioxin <2.9 3.8 <3.2 1,2,3,6,7,8-C16-Dibenzo-p-dioxin <2.6 4.2 <2.9 l,2,3,7,8,9-C16-Dibenzo-p-dioxin <2.4 6.0 <2.6 1,2,3,4,6,7,8-C17-Dibenzofuran <16 <18 1,2,3,4.7,8,9-C17-Dibenzofuran <12 <20 <22 1,2,3,4,6,7,8-C17-Dibenzo-p-dioxin 6.6 28 <23 1,2,3,4,6,7,8,9-C18-Dibenzofuran <4.5 17 16 1,2,3,4.6,7,8,9-C18-Dibenzo-p-di oxin 28 110 150

2,3,7,8-TCDF (DB225) pg <4.2 <3.1 <8.8 Internal Recoveries % 2,3,7,8-TCDF-13C12 94 99 73

TEQ based on Nato Factors 4 8.7 6.6

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CITY_21MC100_011989410

NYC-WTC_000232828