NYC-WTC_000233764

NYC 9/11 Public Portal Document

<date> PASC - Certificate of Analysis Page 6 of

R02090951 Unit/I): 18A Lab No.; 060284 02 Sampled: 12-Sep-2002 Component MDL Units

Total Tetrachlorodibenzofurans pg 130 Total Pentaclilorodibenzofurans 62 Total Hexachlorodibenzofurans 21 Total Heptachlorodibenzofurans 14 Octadilorodibenzofuran 22 Total Tctrachlorodibcnzo-p-dioxins no Total Pentachlorodibenzo-p-dioxins 35 Total Hexachlorodibenzo-p-dioxins 59 Total Ileptachlorodibenzo-p-dioxins 74 Octachlorodibenzo-p-dioxin 300 Internal Recoveries % 2,3,7,8-T4CDr-13C12 90 2,3,7,8 T4CDD-13C12 102 1,2,3,7,8-P5CDF-13C12 94 1,2,3,7,8-P5CDD-13C12 98 1,2,3,4,7,8-H6CDF-13C12 94 1,2,3,6,7,8-H6CDD-13C12 98 1,2,3,4,6,7,8-H7CDF-13C12 80 1,2,3,4,6,7,8-H7CDD-13C12 88 OCDD-13C12 92

2,3,’7,8-C14-Dibenzofuran (DBS) pg <20 2,3,7,8-C14-Dibenzo-p-dioxin <2.4 1,2,3,7,S-CI5-Dibenzofuran <2.7 2,3,4,7,8-C15-Dibenzofuran 5.9 l,2,3,7,8-C15-Dibenzo-p-dioxin <2.5 1,2,3,4,7,8-C16-Dibenzofiiran 8.4 1,2,3,6,7,8-C16-Dibenzofuran <3.2 2,3,4,6,7,8-C16-Dibenzofuran <3.9 1,2,3,7,8,9-C16-Dibenzofuran <4.1 l,2,3,4,7.8-C16-Dibenzo-p-dioxin <2.9 l,2,3,6,7,8-C16-Dibenzo-p-dioxin 2.8 l,2,3,7,8,9-C16-Dibenzo-p-dioxin 3.4 1,2,3,4,6,7,8-017 -Dibenzofuran <17 1,2,3,4,7,8,9-C17-Dibenzofuran <13 l,2,3,4,6,7,8-C17-Dibenzo-p-dioxin 43 1,2,3,4,6,7,8,9-C18-Dibenzofuran 22 l,2,3,4,6,7,8,9-C18-Dibenzo-p-dioxin 300

23,7,8-TCDF (DB22.5) pg <5.1 Internal Recoveries % 2,3,7,g'iCDF-13C12 109

TEQ based on Nato Factors pg 8.2

Client:Philip Analytical Services Inc Project:Misc.

CONFIDENTIAL, CITY_21MC100_003484022 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

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