Permit application for interior cleaning, 125 Liberty Street, August 2002

NYC 9/11 Public Portal Document

PSC Analytical Services Certificate of Analysis R02100400 R02100400 R02100400 Client ID: 16A 16A 16A Lab No.: 039061 02 039061 02 039061 02 Date Sampled: 02/10/09 02/10/09 02/10/09 Matrix:

Component RDL Units TEF # of Isomers

Dioxins and furans

2,3,7,8-C14DBF 12 pg <12 <1.2 2,3,7,8-C14DBD 1.4 13 13 1,2,3,7,8-CI5DBF 1.1 <1.1 <0.056 2,3,4,7,8-CI5DBF 1.1 2.3 1.1 1,2,3,7,8-C15DBD 1.2 " <1.2 <0.59 1,2,3,4,7,8-C16DBF 3.5 <3.5 <0.35 1,2,3,6,7,6-C16DBF 1.4 <1.4 <0.14 2,3,4,6,7,8-CI6DBF 1.6 <1.6 <0.16 1,2,3,7,8,9-Cl6DBF 1.8 <1.8 <0.18 1,2,3,4,7,8-C16DBD 1.3 <1.3 <0.13 1,2,3,6,7,8-C16DBD 1.2 " <1.2 <0.12 1,2,3,7,8,9-CI6DBD 1.2 " <1.2 <0.12 1,2,3,4,6,7,8-CI7DBF 1.6 <1.6 <0.017 1,2,3,4,7,8,9-C17DBF 1.9 " <1.9 <0.019 1,2,3,4,6,7,8-C17DBD 2 12 0.12 1,2,3,4,6,7,8,9-CI8DBF 5.4 <5.4 <0.0054 1,2,3,4,6,7,8,9-C18DB0 1.7 110 0.11

TEF p9 15 MAX TEF "

<18

ET4CDF 0.82 pg 16 4 EP5CDF 1.1 11 4 EH6CDF 1.4 " <1.4 0 EH7CDF 1.8 II <1.8 0 OCDF 5.4 <5.4 0 ET4CDD 1.4 58 5 EP5CDD 1.2 " 21 3 EH6CDD 1.2 22 2 EH7CDD 2 25 2 OCDD 1.7 " 110 1 Surrogate Recoveries % 2,3,7,8-T4CDF-13C12 74 2,3,7,8-T4CDD-13C12 40 1,2,3,7,8-P5CDF-13C12 64 1,2,3,7,8-P5CDD-13C12 68 1,2,3,6,7,8-H6CDF-13C12 54 1,2,3,6,7,8-H6CDD-13C12 70 1,2,3,4,6,7,8-H7CDF-13C12 49 1,2,3,4,6,7,8-H7CDD-13C12 78 OCDD-13C12 105

Certificate No:2J0573 file # =R02100400 prelim report nh Page 16 of 20 Revision No. 0

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