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NYC 9/11 Public Portal Document 09/20/2001 14:53 6314676905 PEDNEAULT ASSOCIATES PAGE 08/14

I J Ertpared Exclusively For: PEB^EAVLTASSOCIATES, INC. N.Y.C. D.E.P. HAZMAT DIVISION 1615N!miAVSNU£. BOX201, BOHEMIA, N.r. )I716

59-17 JUNCTION BOU Lb V AKU LAB#: 01090230 CORONA NY 11368 PROJECT ID WORLD TRADE CENTER (718)595-6431 MATRIX: AIR'SAS

ppb v/v 0.1785 □ (r,p-Xylene 1.12 USEPA TO-15 9/19/01 Styrene 0.09 ppb O.08P6 USEPA TO-1.S 9/t9/ni 1,1.2,2-Tetrschloroethane ND ppb v/v 0.1471 USEPA T0-1S 9/19/01 i o-Xylone 0,44 ppb v/v 0.0111 USEPA TO-15 9/19/01 I 1,3,5-Trirrethylbenzene 0.22 ppb v/v 0.0737 USEPA TO-15 9'19/01 ; 1,2.-1-Trlfnathylben2ene 0.71 ppb ViM 0.1511 USEPA TO-15 9/19/01 ! 1,3-Dichlorobenzene ppb v/v 0.1564 NC USEPA TO-15 9/19/01 j_------------------------------------------ I 14-DichlQrobanzene 0,19 ppb v/v 0.169 USEPA TO-15 9/19/0) 1.2-Dichlorob9nzene NU ppb v/v 0.2014 USCPATO-15 9/19/01 1 7.4-T rifthln'TihunznnB ND ppb v/v 0.1765 USEPA TO-15 9/19/01 Hexachioro-I .S-Butadiene ND ppb v/v 0.1976 USEPA TO.15 9/19/01 Tentatively Identified Cc.mpaunds 9/19/01 2-Melliyl buUne 2.01 ppb v/v 9/19/01

John Peoneault Page 8 of 14 ND=Ri:SULT IS EQUAL TO OR LESS THAN MDL Lab Director SiYS ELAP #10224 MWBE #46070

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