NYC-WTC_000187612

NYC 9/11 Public Portal Document

10/17/2001 10:50 6314676905 PEDNEAULT ASSOCIATES PAGE 17

Prepared Etcliuively Tor: PEDNEAULTASSOCIATES, INC Ifli WNT/fArENUB. BOX2DS, BOHEU/A, B'.Y. 1J7J6 NYCDEP-Braergeacy Response & Tech Assmt. 96-05 Horace Harding Expressway LAB#: 01100280 Corona , NY 11368 PROJECT IP WORLD TRADE CENTER-5 Boro Sampling (718) 595-4650 MATRIX: AIR\GAS I m,p-Xylene 1.57 ppb v/v 0.1785 USEPA TO-15 10/14/01 Styrene 0.09 ppb v/v 0.0896 USEPATO-15 10/14/01 1,1,2,2-Tetrachloroethane ND ppb v/v 0.1471 USEPATO-15 10/.14/01 o-Xylene 0.57 ppb v/v 0.0111 U5EPATO-15 10/14/01 1,3,5-Trimelhylhenzene 0.16 ppb v/v 0,0757 USEPATO-15 10/14/01 1,2.4-Trtmethylbenzene 0.51 ppb v/v 0.1511 USEPATO-15 10/14/01 1,3-Dlchlorobenzene ND ppb v/v 0.1564 USEPATO-15 10/14/01 1,4-Dichlorobenzene ND ppb v/v 0.169 USEPATO-15 10/14/01 1,2-Dichlorobenzene ND ppb v/v 0.2014 USEPATO-15 10/14/01 1.2,4-Trichlorobenzene ND ppb v/v 0,1785 USEPATO-15 10/14/01 Hexachloro-1,3-Butadene ND ppb V/V 0.1976 USEPATO-15 10/14/01 Tentatively Identified Cempounds 10/14/01 (E)-2-Butenal 1.17 ppb v/v USEPATO-15 10/14/01 Isobutane 2.67 ppb v/v USEPATO-15 10/14/01 2-Methyl propene 1.01 ppb v/v USEPATO-15 10/14/01 Butane 2.82 ppb v/v USEPATO-15 10/14/01 2-Methyl butane 4.39 ppb v/v USEPATO-15 10/14/01 Pentane 1.43 ppb v/v USEPA TO-16 10/14/01 2-Methyl Pentane 1,31 ppb v/v USEPATO-15 10/14/01

John Pedneault Page 16 of 16 Lab Director ND=RESULT IS EQUAL TO OR LESS THAN MDL NYS ELAP #10224 MWBE #45075

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