NYC-WTC_000210737

NYC 9/11 Public Portal Document

10/10/2001 10:23 E.314b/6g05 PEDNEAULT ASSOCIATES P/5GL 15

Prepared paclu^ively For: P£DNEAVLTASSOCIATES, INC. MYCDEP-Emergency Response & Tech Assmt. I6li NINTH soxsns, BOHEMU, NY. IJ 7) 6 96-05 Horace Harding Expressway LAB#: 01100166 Corona NY 11368 PROJECT ID WORLD TRADE CENTER-5 Boro Sampling (718) 595-4650 MATRIX: AIRVGAS

r rn.p-Xylene 3.82 ppb v/v 0.1785 USEPATO-15 10/6/01

Styrene 0.33 ppb v/v 0.0896 USEPATO-15 10/6/01

1,1.2,2-Tetrachloroethane ND ppb v/v 0.1471 USEPA TO-15 10/6/01 ci-Xylene 1.37 ppb v/v 0.0111 USEPATO-15 10/6/01 "i ,3,5-Tnmethylbenzene 0.32 ppb 0.0757 USEPA TO-15 10/6/01 1,2,4-Trimettiylbenzene 1.01 ppb v/v 0.1511 USEPATO-15 10/6/01 , 1,3-Dlchlorob0nzene ND ppb v/v 0.1564 USEPA TO-15 10/6/01 i 1,4-Dichlorobenzene ND ppb v/v 0.169 USEPA TO-15 10/6/01 1,2-Dichlorobenzeno ND ppb v/v 0.2014 USEPA TO-15 10/6/01 1.2,4-Trichlorobenzene ND ppb v/v 0.1785 USEPA TO-15 10/6/01 Hexachloro-1,3-Butadiene ND ppb v/v 0.1976 USEPATO-15 10/6/01 Tentatively Identified Compounds 10/6/01 2-Methyl butane 2.20 ppb v/v USEPATO-15 10/6/01 2-M9thyl Pentane 1.50 ppb v/v USEPA TO-15 10/6/01 2,2,4,4-T0tramethyl pentane 0.95 ppb v/v USEPATO-15 10/6/01 Octane 2.24 ppb v/v USEPATO-15 10./6/01

John Pedneault Page 4 of 14 Lab Director ND=RESULT IS EQUAL TO OR LESS THAN MDL NYS ELAP #10224 MWSE #460/5

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