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Chain of Custody: DEP Cleanup Samples, October 24, 2002

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Chain of custody document from PSC Analytical Services regarding the receipt and analysis of samples for the DEP cleanup project.

NYC-WTC_000130104–000130402
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NYC 9/11 Public Portal Document

PSC Analytical Services Certificate of Analysis • R02100403 R02100403 R02100403 Client ID: 14A 14A 14A Lab No.: 039119 02 039119 02 039119 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-CI4DBF 0.34 pg 7.0 0.70 2,3,7,8-CI4DBD 0.92 2.7 2.7 1,2,3,7,8-CI5DBF 0.78 <0.78 <0.039 2,3,4,7,8-CI5DBF 1.7 <1.7 <0.83 1,2,3,7,8-CI5DBD 1.8 <1.8 <0.92 1,2,3,4,7,8-CI6DBF 0.82 <0.82 <0.082 1,2,3,6,7,8-CI6DBF 0.76 <0.76 <0.076 2,3,4,6,7,8-CI6DBF 0.89 <0.89 <0.089 1,2,3,7,8,9-CI6DBF 0.37 <0.37 <0.037 1,2,3,4,7,8-CI6DBD 2.0 <2.0 <0.20 1,2,3,6,7,8-CI6DBD 1.8 N <1.8 <0.18 1,2,3,7,8,9-CI6DBD 1.8 N <1.8 <0.18 1,2,3,4,6,7,8-CI7DBF 110 <110 <1.1 1,2,3,4,7,8,9-CI7DBF 130 <130 <1.3 1,2,3,4,6,7,8-CI7DBD 6.1 <6.1 <0.061 1,2,3,4,6,7,8,9-CI8DBF 11 <11 <0.011 1,2,3,4,6,7,8,9-CI8DBD 39 <39 <0.039

• TEF pg 3.4 EPA Requested TEQs < 6.00 MAX TEF < 8.6 Units Ng/m2 < 0.60

£T4CDF 0.34 pg 24 9 EP5CDF 0.79 4.0 2 EH6CDF 0.89 II <0.89 0 EH7CDF 120 <120 0 OCDF 11 N <11 0 ET4CDD 0.92 22 5 EP5CDD 1.8 9.9 1 EH6CDD 1.8 39 1 EH7CDD 5.4 <5.4 0 OCDD 39 <39 0 Surrogate Recoveries % 2,3,7,8-T4CDF-13C12 86 2,3,7,8-T4CDD-13C12 61 1,2,3,7,8-P5CDF-13C12 47 1,2,3,7,8-P5CDD-13C12 36 1,2,3,6,7,8-H6CDF-13C12 91 1,2,3,6,7,8-H6CDD-13C12 56 1,2,3,4,6,7,8-H7CDF-13C12 66 1,2,3,4,6,7,8-H7CDD-13C12 44 • OCDD-13C12 30

Certificate No:2J0576 file # =R02100403 TEQ Report nh Page 27 of 36 Revision No. 0

NYC-WTC 000130313

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NYC-WTC_000130313Source: NYC Law Department, mirrored locally

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NYC-WTC_000130052 · Box DEP Box 53

Chain of custody document from PSC Analytical Services regarding the receipt and analysis of samples for the DEP cleanup project.

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