NYC-WTC_000187239

NYC 9/11 Public Portal Document 10/16/2001 14:48 6314676905 PEDNEAULT ASSOCIATES PAGE 11

Prepared Exclusively Tor: jPBDNEAULTASSOCIATES, INC. NYCDEP-Emergency Response & Tech AssmL l6l5NlfmfAI'EmE. BOX205. BOHEMA. f/.Y. 11716 96-05 Horace Harding Expressway LAB#: 01100281 Corona NY 11368 PROJECT ID WORLD TRADE CENTER- 5 Boro Sampling (7 IS) 595-4650 MATRIX: AIWGAS J______ m.p-Xylene 3,91 ppb v/v 0.1785 USEPA TO-15 10/15/01 Styrene 0.37 ppb v/v 0.0696 USEPA TO-15 10/15/01 1,1,2,2-TetrachloroGtnane ND ppb v/v 0.1471 USEPA TO-15 10/15/01 o-Xylena 1.44 ppb v/v 0.0111 USEPA TO-15 10/15/01 1,3,5-Trlnielhylbenzene 0.46 ppb v/v 0.0757 USEPA TO-16 10/15/01 1,2,4-Trimethylbonzene 1.42 ppb v/v 0.1511 USEPA TO-15 10/15/01 I.S-Dichlorobenzene ND ppb v/v 0.1 S64 USEPA TO-15 10/15/01 1,4-DlchlOfobenzane ND ppb v/v 0.169 USEPA TO-15 10/15/01 1,2-Dichlorobenzene ND ppb v/v 0.2014 USEPA TO-15 10/15/01 1,2,4-Trichlorobenzene ND ppb v/v. 0.1785 USEPA TO-15 10/15/01 Hexach(oro-1,3-Butadi9ne ND ppb v/v 0.1976 USEPA TO-15 10/15/01 Tentatively Identified Compounds 10/15/01 Propene 1,87 ppb v/v USEPA TO-15 10/15/01 2-Meftiyl-1 -propene 1,97 ppb v/v USEPA TO-15 10/15/01 2-MelhyI butane 3,67 ppb v/v USEPA TO-15 10/15/01 Pentane 1,19 ppb v/v USEPA TO-15 10/15/01

: 2-Methyl Pentane 1,22 ppb v/v USEPA TO-15 10/15/01

John Pedneault Page 10 of 16 NI>=RESULT IS EQUAL TO OR LESS TH,KN MDL NYS elap #10224 Lab Director MW0E #46075

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NYC-WTC_000187248