NYC-WTC_000234040

NYC 9/11 Public Portal Document

<date> PASC - Certificate of Analysis Page 6 of

R02090951 Client ID: 18A Lab No.: 060284 02 Sampled: 12-Scp-2002 Component MDL Units

Total Tctrachlorodibcnzofurans pg 130 Total Pentachlorodibenzofurans 62 Total Hexachlorodibenzofurans 21 Total Heptachlorodibenzofurans 14 Octachlorodibenzofuran 22 Total Tetrachlorodibenzo-p-dioxins 110 Total Pentachlorodibenzo-p-dioxins 35 Total Hexachlorodibenzo-p-dioxins 59 Total Heptachlorodibenzo-p-dioxins 74 Octaclilorodibenzo-p-dioxin 300 Internal Recoveries % 2,3,7,8-T4CDF-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-Dibenzofiiran (DB5) pg <20 2,3,7,8-C14-Dibenzo-p-dioxin <2.4 1,2,3,7.8-C15-Dibenzofuran <2.7 2,3,4,7.8-C15-Dibenzofuran 5.9 1,2,3,7,8-C15-Dibenzo-p-dioxin 1,2,3,4,7,8-C16-Dibcnzofuran 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-Dibcnzofuran <4.1 1,2,3,4,7,8-C16-Dibenzo-p-dioxin <2.9 1,2,3,6,7,8-C16-Dibenzo-p-dioxin 2.8 l,2,3,7,8,9-C16-Dibenzo-jydioxin 3.4 1,2,3,4,6,7,8-C17-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

2,3,7,8-TCDF (DB225) pg <5.1 Internal Recoveries % 2,3,7,8-TCDF-13C12 109

TEQ based on Nato Factors pg 5.18

TEQ's converted into appropriate units n«/iir 0.249 (a 209 cm’ area was wiped)

Client:Philip Analytical Services Inc Project:Misc.

CITY_21MC100_0 10322992

NYC-WTC_000234046