NYC-WTC_000233539

NYC 9/11 Public Portal Document

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R02100400 R02100400R02100400R021 00400 R02100400 11A Client ID: 12A 12A 12A Client ID: 13A 039056 02 Lab No.: 039057 02 039057 02 039057 02 Lab No.:03305S 02 02/10/09 Date Sampled: 02/10/09 02/10/09 02/10/09 Date Sampled: 02/10/09 Matrix: Matrix:

Componerttof Isomer RDL Units TEF ‘ of Isomer RDL Units

2,3,7,8-CI4DBF 1.2 pg <1.2 <0.12 1.3 pg <1.3 2,3,7,8-CI4DBD 3.1 <3.1 <3.1 1.1 <1.1 1,2,3,7,8-CI5DBF 2.3 <2.3 <0.11 0.99 <0.99 2.3.4.7.8-CI5DBF 2.2 <2.2 <1.1 0.96 <0.96 1.2.3.7.8-CI5DBD 2.5 <2.5 <1.3 3.8 <3.8 1,2,3,4,7,8-CI6DBF 2.6 <2.6 <0.26 1.5 <1.5 1,2,3,6,7,8-CI6DBF 16 <16 <1.6 1.4 <1.4 2,3,4,6,7,8-CI6DBF 80 <80 <8.0 1.6 <1.6 1,2,3,7,8,9-CI6DBF 3.2 <3.2 <0.32 1.8 <1.8 1,2,3,4,7,8-CI6DBD 61 <61 <6.1 0.59 <0.59 1,2,3,6,7,8-CI6DBD 6.0 <6.0 <0.60 0.56 <0.56 1,2,3,7,8,9-CI6DBD 5.9 <5.9 <0.59 0.54 <0.54 1,2,3,4,6,7,8-CI7DBF 5.6 <5.6 <0.056 5.2 <5.2 1,2,3,4,7,8,9-CI7DBF 6.4 <6.4 <0.064 6.0 <6.0 1,2,3,4,6,7,8-CI7DBD 3.5 <3.5 <0.035 1.2 <1.2 1,2,3,4,6,7,8,9-CI8DBF 3.2 5.4 0.0054 1.3 <1.3 1,2,3,4,6,7,8,9-CI8DBD 3.0 <3.0 <0.030 0.85 4.5

TEF pg 0.0054 pg MAX TEF <23

ET4CDF 1 1.2 pg <1.2 0 1.3 pg <1.3 EP5CDF 0 2.3 <2.3 0 0.99 <0.99 EH6CDF 0 2.6 <2.6 0 1.5 <1.5 ZH7CDF 0 6.2 <6.2 0 5.8 <5.8 OCDF 0 3.2 5.4 1 1.3 <1.3 ET4CDD 0 3.1 <3.1 0 1.1 1.9 EP5CDD 0 2.5 <2.5 0 3.8 <3.8 ZH6CDD 0 290 <290 0 0.56 <0.56 ZH7CDD 0 3.5 <3.5 0 1.2 <1.2 OCDD 1 3.0 <3.0 0 0.85 4.5 Surrogate Recoveries % % 2,3,7,8-T4CDF-13C12 76 80 2,3,7,8-T4CDD-13C12 84 83 1.2.3.7.8-P5CDF-13C12 51 69 1,2,3,7,8-P5CDD-13C12 46 67 1,2,3,6,7,8-H6CDF-13C12 68 77 1,2,3,6,7,8-H6CDD-13C12 69 90 1,2,3,4,6,7,8-H7CDF-13C12 60 88 1,2,3,4,6,7,8-H7CDD-13C12 61 99 OCDD-13C12 117 94

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CONFIDENTIAL, CITY_21MC100_003483997

SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000233547