NYC-WTC_000233764

NYC 9/11 Public Portal Document

<date> PASC - Certificate of Analysis Page 2 of

R02090951 R02090951 R02090951 R02090951 Unit/I): 02A 03A 04A 05A Lab No.; 060268 02 060269 02 060270 02 060271 02 Sampled: 12-.Sep-2002 12-.Sep-20O2 12-.Sep-2002 12-Sep-2002 Component MDL Units

Total Tetrachlorodibenzofurans pg 130 27 <1.9 <2.0 Total Pentaclilorodibenzofurans 55 <8.8 <1.9 <3.4 Total Hexachlorodibenzofurans 45 21 <1.5 <1.2 Total Heptachlorodibenzofurans 46 57 <1.9 <1.8 Octadilorodibenzofuran 33 53 <2.7 Total Tctrachlorodibcnzo-p-dioxins no 56 <3.7 <3.4 Total Pentachlorodibenzo-p-dioxins 16 5.1 <3.4 <5.8 Total Hexachlorodibenzo-p-dioxins <35 2.9 <8.0 <11 Total Ileptachlorodibenzo-p-dioxins 88 62 <3.3 7.0 Octachlorodibenzo-p-dioxin 390 320 16 13 Internal Recoveries % 2,3,7,8-T4CDr-13C12 72 68 65 81 2,3,7,8 T4CDU-13C12 75 76 73 85 1,2,3,7,8-P5CDF-13C12 61 76 60 86 1,2,3,7,8-P5CDD-13C12 67 93 67 96 1,2,3,4,7,8-H6CDF-13C12 73 79 79 96 1,2,3,6,7,8-H6CDD-13C12 76 80 77 94 1,2,3,4,6,7,8-H7CDF-13C12 71 78 85 97 1,2,3,4,6,7,8-H7CDD-13C12 68 79 82 91 OCDD-13C12 75 91 100 115

23,7,8-C14-Dibenzofuran (DB5) pg 20 11 <1.9 <2.0 2,3,7,8-C14-Dibenzo-p-dioxin <2.5 <3.7 <2.7 1,2,3,7,S-CI5-Dibenzofuran 4.0 <6.5 <1.8 <3.2 23,4,7,8-C15-Dibenzofuran <5.0 <7.1 <1.9 <3.5 l,2,3,7,8-C15-Dibenzo-p-dioxin <3.6 <4.2 <3.4 <3.0 1,2,3,4,7,8-C16-Dibenzofiiran 8.2 5.2 <1.3 <1.1 1,2,3,6,7,8-C16-Dibenzofuran 4.5 3.0 <1.4 <1.1 2,3,4,6,7,8-C16-Dibenzofuran 10 <2.7 <1.6 <1.3 1,23,7,8,9-C16-Dibenzofuran <3.3 <2.0 <1.6 1,2,3,4,7,8-ClO-Dibenzo-p-dioxin <2.4 <2.6 <3.2 <3.3 l,2,3,6,7,8-C16-Dibenzo-p-dioxin <3.4 <2.6 <3.1 <3.3 l,2,3,7,8,9-C16-Dibenzo-p-dioxin <2.3 <2.5 <3.1 <3.2 1,2,3,4,6,7,8-017 -Dibenzofuran 21 33 <1.6 <1.5 1,2,3,4,7,8,9-C17-Dibenzofuran <3.1 <2.8 <2.3 <2.2 l,2,3,4,6,7,8-C17-Dibenzo-p-dioxin 48 35 <3.3 4.7 1,2,3,4,6,7,8,9-C18-Dibenzofuran 33 53 <2.7 <2.2 1,2,3,4,6,7,8,9-C18-Dibenzo-p-dioxin 390 320 16 13

2,3,7,8-TCDF (DB22.5) pg 13 <6.5 Internal Recoveries % 23,7,8 TCDF-13C12 88 81

TEQ based on Nato Factors pg 8.7 7.7 3.7 3.9

Client:Philip Analytical Services Inc Project:Misc.

CONFIDENTIAL, CITY_21MC100_003484018 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000233766