NYC-WTC_000232660

NYC 9/11 Public Portal Document

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11th Floor 11th Floor 11 th Floor Client ID: Up-07 Up-08 Up-09 R03030259- -28A -29A -30A LabNo.: 009220 03 009221 03 009222 03 Date Sampled: 04-Mai--2003 04-Mar-2003 04-Mai--2003 Component MDL Units

Total Tetrachlorodibenzofurans pg 29 6.5 Total Pentachlorodibenzofiirans 6.9 <3.5 <5.2 Total Hexachlorodibenzofurans <3.4 <1.5 Total Heptachlorodibenzofurans <8.6 <3.1 <6.7 Octachlorodibenzofuran 7.6 <2.4 <5.3 Total Tetrachlorodibenzo-p-dioxins 51 <4.3 9.1 Total Pentachlorodibenzo-p-dioxins <9.0 <7.6 <12 Total Hexachlorodibenzo-p-dioxins <50 <36 <53 Total Heptachlorodibenzo-p-dioxins 16 <3.0 9.7 Octachlorodibenzo-p-dioxin 39 <11 34 Internal Recoveries % 2,3,7,8-T4CDF-13C12 75 71 71 2,3,7,8-T4CDD-13C12 99 98 95 1,2,3,7,8-P5CDF-13C12 82 80 79 1,2,3,7.8-P5CDD-13C12 88 86 87 1,2,3,4.7,8-H6CDF-13C12 88 94 93 1,2,3,6.7,8-H6CDD-13C12 92 96 93 1,2,3,4.6,7,8-H7CDF-13C12 91 97 95 1,2,3,4.6,7,8-H7CDD-13C12 101 109 103 OCDD-13C12 95 109 93

2,3,7,S-C14-Uibenzoiuran (UB5) pg 13 <2.3 <6.5 2,3,7,8-C14-Dibenzo-p-dioxin <2.4 <4.7 1,2,3,7,8-C15-Dibenzofuran <5.2 <3.4 <5.2 2,3,4,7.8-C15-Uibenzofiiran <5.3 <3.5 l,2,3,7,8-C15-Dibenzo-p-dioxin <9.0 <7.6 <6.6 1,2,3,4,7,8-C16-Dibenzofuran <2.9 <2.9 1,2,3,6,7,8-C16-Dibenzofuran <3.0 <1.4 <3.0 2,3,4,6.7,8-C16-Dibenzofuran <1.6 <3.5 1,2,3,7,8,9-C16-Dibenzofi]ran <4.2 <1.9 <4.2 1,2,3,4-7,8-C16-Dibenzo-p-dioxin <3.4 <4.5 <4.0 1,2,3,6,7,8-C16-Dibenzo-p-dioxin <3.7 <4.8 <4.3 l,2,3,7,8,9-C16-Dibenzo-p-dioxin <3.4 <4.4 <4.0 1,2,3,4.6,7,8-C17-Dibenzofuran <7.5 <2.7 <5.8 1,2,3,4,7,8,9-C17-Dibenzofuran <4.6 <3.7 <4.6 l,2,3,4,6,7,8-C17-Dibenzo-p-dioxin 9.6 <3.0 <9.5 1,2,3,4.6,7,8,9-C18-Dibenzofuran 7.6 <2.4 <5.3 l,2,3,4,6,7,8,9-C18-Dibenzo-p-dioxin 39 <11 34

2,3,7,8-TCDF (DB225) pg 6.6 <4.1 <4.5 Internal Recoveries % 2,3,7,8-TCDF-13C12 81 79 78

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CITY_21MC100_009479042

NYC-WTC_000232674