NYC-WTC_000232716

NYC 9/11 Public Portal Document

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R02100403 R02100403 R02100403 R02100403 Client ID: 10A 10A 10A Client ID: 11A Lab No.: 039^^5 02 039115 02 039115 02 Lab No.: 039U6 02 late Sampled: 02/10/09 02/10/09 02/10/09 Date Sampled; 02/10/09 Matrix: Matrix:

Component Units TEF # of Isomers RDL Units

Dioxins and furans

2,3,7,8-CI4DBF pg <1.6 <0.16 0.79 pg 2.6 2,3,7,8-CI4DBD <1.1 <1.1 1.4 <1.4 1,2,3,7,8-CI5DBF <1.7 <0.083 0.78 <0.78 2,3,4,7,8-CI5DBF <1.6 <0.80 0.48 <0.48 1.2.3.7.8-CI5DBD <1.5 <0.76 1.9 <1.9 1,2,3,4,7,8-CI6DBF <1.3 <0.13 2.1 <2.1 1,2,3,6,7,8-CI6DBF <1.2 <0.12 1.9 <1.9 2,3,4,6,7,8-CI6DBF <1.4 <0.14 2.3 <2.3 1,2,3,7,8,9-CI6DBF <1.6 <0.16 2.5 <2.5 1,2,3,4,7,8-CI6DBD <2.3 <0.23 1.7 <1.7 1,2,3,6,7,8-CI6DBD <2.2 <0.22 1.6 <1.6 1,2,3,7,8,9-CI6DBD <2.1 <0.21 1.5 <1.5 1,2,3,4,6,7,8-CI7DBF <130 <1.3 170 <170 1,2,3,4,7,8,9-CI7DBF <160 <1.6 200 <200 1,2,3,4,6,7,8-CI7DBD <6.4 <0.064 2.1 5.8 1,2,3,4,6,7,8,9-CI8DBF <4.3 <0.0043 6.7 <6.7 1,2,3,4,6,7,8,9-CI8DBD 13 0.013 1.5 54

TEF pg 0.013 pg EPA Requested TEQs < 3.56 < MAX TEF 7.1 Units Ng/m^ 0.36 <

ET4CDF pg 2.0 2 0.79 pg 3.9 ZP5CDF <1.7 0 0.50 <0.50 ZH6CDF <1.3 0 2.1 <2.1 ZH7CDF <150 0 180 <180 OCDF <4.3 0 6.7 <6.7 ZT4CDD 6.9 2 1.4 <1.4 ZP5CDD <1.5 0 1.9 <1.9 ZH6CDD <2.2 0 1.6 <1.6 ZH7CDD <6.4 0 2.1 12 OCDD 13 1 1.5 54 Surrogate Recoveries % % 2,3,7,8-T4CDF-13C12 94 96 2,3,7,8-T4CDD-13C12 66 76 1,2,3,7,8-P5CDF-13C12 64 74 1,2,3,7,8-P5CDD-13C12 50 60 1,2,3,6,7,8-H6CDF-13C12 102 44 1,2,3,6,7,8-H6CDD-13C12 78 60 1,2,3,4,6,7,8-H7CDF-13C12 100 36 1,2,3,4,6,7,8-H7CDD-13C12 82 80

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CONFIDENTIAL, CITY_21MC100_013182139 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000232727