NYC-WTC_000234102

NYC 9/11 Public Portal Document

PSC Analytical Services Certificate of Analysis

R02100402 R02100402 R02100402 R02100402 R02100402 09A 09A 09A Client ID: 10A 10A 039094 02 039094 02 039094 02 Lab No.: 039095 02 039095 02 02/10/09 02/10/09 02/10/09 Date Sampled: 02/10/09 02/10/09 Matrix:

Component TEF f of isomer; RDL Units TEF

Dioxins and furans

2,3,7,8-CI4DBF 1.8 0.18 0.36 pg 3.4 0.34 2,3,7,8-CI4DBD <0.44 <0.44 1.0 <1.0 <1.0 1,2,3,7,8-CI5DBF <0.59 <0.030 0.23 0.63 0.031 2,3,4,7,8-CI5DBF <0.48 <0.24 0.22 0.84 0.42 1.2.3.7.8-CI5DBD <0.64 <0.32 0.23 <0.23 <0.12 1,2,3,4,7,8-CI6DBF <0.67 <0.067 0.21 0.89 0.089 1,2,3,6,7,8-CI6DBF <0.30 <0.030 0.19 0.60 0.060 2,3,4,6,7,8-CI6DBF 0.35 0.035 0.75 <0.75 <0.075 1,2,3,7,8,9-CI6DBF <0.28 <0.028 0.24 <0.24 <0.024 1.2.3.4.7.8-CI6DBD <0.63 <0.063 0.25 <0.25 <0.025 1,2,3,6,7,8-CI6DBD <0.43 <0.043 0.24 <0.24 <0.024 1,2,3,7,8,9-CI6DBD <0.42 <0.042 0.23 0.38 0.038 1,2,3,4,6,7,8-CI7DBF <1.5 <0.015 3.3 <3.3 <0.033 1,2,3,4,7,8,9-CI7DBF <1.1 <0.011 0.81 <0.81 <0.0081 1.2.3.4.6.7.8-CI7DBD <0.45 <0.0045 0.32 3.1 0.031 1,2,3,4,6,7,8,9-CI8DBF 5.8 0.0058 1.9 <1.9 <0.0019 1,2,3,4,6,7,8,9-CI8DBD <3.0 <0.0030 0.97 23 0.023

TEF 0.22 pg 1.0 MAX TEF <1.6 <2.4

ET4CDF 3.9 5 0.36 pg 12 EP5CDF <0.36 0 0.23 5.1 EH6CDF 0.35 1 0.21 2.5 EH7CDF <1.1 0 1.7 <1.7 OCDF 5.8 1 1.9 <1.9 ET4CDD 1.5 2 0.21 15 EP5CDD <0.64 0 0.23 3.3 EH6CDD <0.43 0 0.24 1.2 EH7CDD <0.28 0 0.32 5.7 OCDD <3.0 0 0.97 23 Surrogate Recoveries % 2,3,7,8-T4CDF-13C12 100 90 2,3,7,8-T4CDD-13C12 98 87 1,2,3,7,8-P5CDF-13C12 102 94 1,2,3,7,8-P5CDD-13C12 101 96 1,2,3,6,7,8-H6CDF-13C12 71 85 1,2,3,6,7,8-H6CDD-13C12 84 85 1,2,3,4,6,7,8-H7CDF-13C12 60 91 1,2,3,4,6,7,8-H7CDD-13C12 96 88 OCDD-13C12 67 73

Certificate No:2J0575 file# =DEP00206977.XLS nh Page 7 of Revision No. 0

CITY_21MC100_003233018

NYC-WTC_000234111