NYC-WTC_000233764

NYC 9/11 Public Portal Document

<date> PASC - Certificate of Analysis Page 4 of

R02090951 R02090951 R02090951 R02090951 Unit/I): lOA llA 12A 13A Lab No.; 060276 02 060277 02 060278 02 060279 02 Sampled: 12-.Sep-2002 12-.Sep-20O2 12-.Sep-2002 12-Sep-2002 Component MDL Units

Total Tetrachlorodibenzofurans pg 970 180 170 <2.0 Total Pentaclilorodibenzofurans 450 no 78 <2.7 Total Hexachlorodibenzofurans 250 45 45 <2.6 Total Heptachlorodibenzofurans 35 11 11 <3.4 Octadilorodibenzofuran 58 12 16 <5.1 Total Tctrachlorodibcnzo-p-dioxins 1700 230 170 6.6 Total Pentachlorodibenzo-p-dioxins 290 130 56 <4.6 Total Hexachlorodibenzo-p-dioxins 260 14 17 <13 Total lleptachlorodibenzo-p-dioxins 190 90 80 5.0 Octachlorodibenzo-p-dioxin 730 350 320 13 Internal Recoveries % 2,3,7,8-T4CDr-13C12 93 87 92 86 2,3,7,8 T4CDU-13C12 80 80 85 81 1,2,3,7,8-P5CDF-13C12 88 82 84 79 1,2,3,7,8-P5CDD-13C12 95 88 87 85 1,2,3,4,7,8-H6CDF-13C12 95 90 85 86 1,2,3,6,7,8-H6CDD-13C12 93 93 88 87 1,2,3,4,6,7,8-H7CDF-13C12 85 86 80 78 1,2,3,4,6,7,8-H7CDD-13C12 88 91 85 87 OCDD-13C12 79 86 77 77

2,3,’7,8-C14-Dibenzofuran (DB5) pg 140 28 21 <2.0 2,3,7,8-C14-Dibenzo-p-dioxin <10 <3.4 <3.3 <3.2 1,2,3,7,S-CI5-Dibenzofuran <2.2 <6.1 <2.6 2,3,4,7,8-C15-Dibenzofuran 31 13 8.0 <2.8 l,2,3,7,8-C15-Dibenzo-p-dioxin <4.6 <3.5 <3.9 <4.6 1,2,3,4,7,8-C16-Dibenzofiiran 50 15 11 <2.5 1,2,3,6,7,8-C16-Dibenzofuran 19 <7.0 <5.3 2,3,4,6,7,8-C16-Dibenzofuran 22 <7.2 7.8 <2.8 1,2,3,7,8,9-C16-Dibenzofuran <8.0 <3.7 <4.3 <3.0 1,2,3,4,7.8-ClO-Dibenzo-p-dioxin <4.0 <16 l,2,3,6,7,8-C16-Dibenzo-p-dioxin 9.7 4.4 <4.4 <12 l,2,3,7,8,9-C16-Dibenzo-p-dioxin 10 <5.3 <4.8 <13 1,2,3,4,6,7,8-C17 -Dibenzofuran <68 <24 <23 <2.9 1,2,3,4,7,8,9-C17-Dibenzofuran 19 <8.5 <5.2 <3.9 l,2,3,4,6,7,8-C17-Dibenzo-p-dioxin too 47 40 5.0 1,2,3,4,6,7,8,9-C18-Dibenzofutan 58 12 16 <5.1 l,2,3,4,6,7,8,9-C18-Dibenzo-p-dioxin 730 350 320 13

2,3,7,8-TCDF (DB225) pg 37 <9.8 <6.7 <8.9 Internal Recoveries % 2,3,7,g'iCDF-13C12 87 86 93 94

TEQ based on Nato Factors pg 44.6 13.9 11.1 6.3

Client:Philip Analytical Services Inc Project:Misc.

CONFIDENTIAL, CITY_21MC100_003484020 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000233768