NYC-WTC_000233539

NYC 9/11 Public Portal Document

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R02100400 R02100400R02100400R021 00400 R02100400 02A Client ID: OSA OSA OSA Client ID: 04A 039047 02 Lab WO..-0S9048 02 0S9048 02 0S9048 02 Lab Wo. .-039049 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 0.13 pg 5.4 0.54 0.21 pg 5.0 2,3,7,8-CI4DBD 0.18 1.8 1.8 0.13 1.6 1,2,3,7,8-CI5DBF 0.13 1.5 0.074 0.89 <0.89 2.3.4.7.8-CI5DBF 0.12 1.7 0.84 0.79 <0.79 1.2.3.7.8-CI5DBD 0.27 0.44 0.22 0.33 <0.33 1,2,3,4,7,8-CI6DBF 0.15 <0.15 <0.015 0.23 1.2 1,2,3,6,7,8-CI6DBF 1.5 <1.5 <0.15 0.71 <0.71 2,3,4,6,7,8-CI6DBF 0.17 2.2 0.22 0.26 1.4 1,2,3,7,8,9-CI6DBF 0.19 0.32 0.032 0.29 <0.29 1,2,3,4,7,8-CI6DBD 0.19 <0.19 <0.019 0.21 <0.21 1,2,3,6,7,8-CI6DBD 0.58 <0.58 <0.058 0.20 <0.20 1,2,3,7,8,9-CI6DBD 0.13 0.95 0.095 0.2 0.69 1,2,3,4,6,7,8-CI7DBF 11 <11 <0.11 11 <11 1,2,3,4,7,8,9-CI7DBF 13 <13 <0.13 140 <140 1,2,3,4,6,7,8-CI7DBD 0.16 3.2 0.032 0.11 3.4 1,2,3,4,6,7,8,9-CI8DBF 0.78 <0.78 <0.00078 1.1 <1.1 1,2,3,4,6,7,8,9-CI8DBD 0.19 16 0.016 0.2 24

TEF pg 3.8 pg MAX TEF <4.3

ET4CDF 2 0.13 pg 13 7 0.21 pg 17 EP5CDF 1 0.13 5.9 6 0.15 3.1 EH6CDF 1 0.17 2.5 2 0.23 2.5 ZH7CDF 0 13 <13 0 140 <140 OCDF 1 0.78 <0.78 0 1.1 <1.1 ET4CDD 2 0.18 7.1 5 0.13 8.6 EP5CDD 1 0.27 9.3 8 0.66 4.2 ZH6CDD 0 0.13 9.9 4 0.21 1.6 ZH7CDD 1 0.16 7.2 2 0.11 6.8 OCDD 1 0.19 16 1 0.2 24 Surrogate Recoveries % % 2,3,7,8-T4CDF-13C12 159 71 2,3,7,8-T4CDD-13C12 133 93 1.2.3.7.8-P5CDF-13C12 161 112 1,2,3,7,8-P5CDD-13C12 166 107 1,2,3,6,7,8-H6CDF-13C12 49 30 1,2,3,6,7,8-H6CDD-13C12 75 73 1,2,3,4,6,7,8-H7CDF-13C12 37 13 1,2,3,4,6,7,8-H7CDD-13C12 95 85 OCDD-13C12 77 76

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CONFIDENTIAL, CITY_21MC100_003483992 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000233542