NYC-WTC_000233539

NYC 9/11 Public Portal Document

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R02100400R02100400 R02100400R02100400R02100400 13A 13A Client ID: 14A 14A 14A Client ID: 039058 02 039058 02 Lab Wo. .-039059 02 039059 02 039059 02 Lab No.: 02/10/09 02/10/09 Date Sampled: 02/10/09 02/10/09 02/10/09 Date Sampled: Matrix: Matrix:

Component TEF ■ of Isomer RDL Units TEF ■ of Isomer RDL Units

2,3,7,8-CI4DBF0.13 1.1 pg <1.1 <0.11 1.0 pg 2,3,7,8-CI4DBai.1 1.1 <1.1 <1.1 2.0 1,2,3,7,8-CI5DBR)50 1.2 <1.2 <0.061 1.7 2,3,4,7,8-CI5Dfl!F48 1.2 <1.2 <0.59 1.7 1,2,3,7,8-CI5DBD9 1.4 <1.4 <0.72 1.5 1,2,3,4,7,8-CI6fflBlf5 1.0 <1.0 <0.10 1.4 1,2,3,6,7,8-CISIDBR 1.0 <1.0 <0.10 1.4 2,3,4,6,7,8-CISIDBre 1.1 <1.1 <0.11 1.6 1,2,3,7,8,9-CISfQBIB 1.3 <1.3 <0.13 1.7 1,2,3,4,7,8-016(2 BES 1.2 <1.2 <0.12 1.3 1,2,3,6,7,8-016(2 BEB 1.1 <1.1 <0.11 1.3 1,2,3,7,8,9-016(2 BE4 1.1 <1.1 <0.11 1.2 1,2,3,4,6,7,8-0E’Gffi0= 1.2 <1.2 <0.012 2.8 1,2,3,4,7,8,9-effOfflEF 1.4 <1.4 <0.014 3.2 i,2,3,4,6,7,8-e(r(2eaD 1.2 <1.2 <0.012 1.4 1,2,3,4,6,7,8,6eC!a8CEF 2.1 <2.1 <0.0021 1.6 1,2,3,4,6,7,8,ftaffiBBD 4.3 <4.3 <0.0043 1.9

TEF 0.0045 pg 0 pg MAX TEF <4.6 <3.4

ET4CDF 0 1.1 pg <1.1 0 1.0 pg EP5CDF 0 1.2 <1.2 0 1.7 EH6CDF 0 1.0 <1.0 0 1.6 ZH7CDF 0 1.4 <1.4 0 3.1 OCDF 0 2.1 <2.1 0 1.6 ET4CDD 1 1.1 <1.1 0 2.0 EP5CDD 0 1.4 <1.4 0 1.5 ZH6CDD 0 1.1 <1.1 0 1.3 ZH7CDD 0 1.2 <1.2 0 1.4 OCDD 1 4.3 <4.3 0 1.9 Surrogate Recoveries % % 2,3,7,8-T4CDF-13C12 84 2,3,7,8-T4CDD-13C12 85 1,2,3,7,8-P5CDF-13C12 70 1,2,3,7,8-P5CDD-13C12 79 1,2,3,6,7,8-H6CDF-13C12 77 1,2,3,6,7,8-H6CDD-13C12 90 1,2,3,4,6,7,8-H7CDF-13C12 87 1,2,3,4,6,7,8-H7CDD-13012 98 OCDD-13C12 87

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CONFIDENTIAL, CITY_21MC100_003483998 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000233548