NYC-WTC_000209350

NYC 9/11 Public Portal Document l!jy/2a/2«01 14:53 6314676905 PEDKAULT ASSOCIATES PAGE 12/14

[ Prepared Exclusively For: PEDNEAVLTASSOCIATES. INC. N.Y.C. D.E.P. HAZMAT DIVISION }61S WX205, SOfiEMi, K K 0716 59-17 JUNCTION BOULEV.ARD LAB#: 01090230 CORONA NY 11368 PROJECT ID WORLD TRADE CENTER (718)595-6431 MATRIX: AIR-GAS r . ' _____ _ i m,p-Xylene 2.75 ppb v/v Q.1785 USEPA TO-lb 9/19/01 I Styreritt 0.21 ppb vA/ tlSFPATO.15 9/19/01 ; 1,1,2,2-Tetrachlorcethare NO ppb v/v 0.1471 USEPATO-16 9/19/01 I o-Xylene 1.08 ppb v/v 0.C111 USEPATO-15 9/19/01 1,3,5-Trimethylbenzen0 0.37 ppb v/v 0.0757 USEPA T016 9/19/01 j 1,2,4-Trimethylbcn2cnc 1.08 ppb v/v 0.1511 USEPA TO.15 9/19/01 j 1,3-Dlchloropenzene ND ppb v/v 0.1564 USEPATQ.15 9/19/01 ' 1,4-Dlcblorobenzene 0.46 ppb v/v 0.169 USEPA TO-15 9/19/01 1,2-Dichloroben2ene NU ppb v/v 0.2014 USEPA TO 16 9/19-'01 j 1,2,4.Trichlorob8n7enA MD ppb v/v 0.1785 USEPA TO-15 9.T9,'01 [ Hexachioro-1,3-BiJtadi9n9 ND ppb v/v 0.1876 USEPA TO-15 9/19/01 Tentatively Identified Compounds 9/19/01 2-MGtnyi-i-p/opene 1.06 ppb v/v 9/JP/Ol , Butane 1.19 ppb v/v 9/19/01 I 2-Methyl butane 3.47 ppb v/v 9/19/01 i2-Methyl Pentane 1.17 ppb v/v 9/19/01

John Pedneauit Page 12 of 14 ND-RKSULT IS EQUAL TO OR LESS THAN MDL Lab Diractor NYSELAP *10224 MWDC #40075

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NYC-WTC_000209361