NYC-WTC_000187255

NYC 9/11 Public Portal Document

10/17/2001 15:15 6314676905 PEDNEAULT ASSOCIATES PAGE 16

r Prepared Exclusively For: PEDNEA ULT ASSOCIATES, INC NYCDEP-Emergency Response & Tech Assmt. BOX 205. BOHEMIA, NT. 11 US 96-05 Horace Harding Expressway LAB#: 01100307 Corona .NY 11368 PROJECT ID WORLD TRADE CENTER- 5 Boro Sampling (718)595-4650 MATRIX: AIR\GAS

J—-= ppb v/v 0.1785 m,p-Xylene 1.00 USEPA TO-15 10/15/01 Styrene ND ppb VA/ 0.0896 USEPA TO-15 10/15/01 1,1,2.2-Tetrachloroethane ND ppb v/v 0.1471 USEPA TO-15 10/15/01 o-Xy1ene 0.38 ppb v/v 0.0111 USEPA TO-IS 10/15/01 1.3.5-Trimefhylbenzene 0.09 ppb v/v 0.0757 USEPA TO-15 10/15/01 1 ,2,4-Trimethylbenzene ND ppb v/v 0.1511 USEPA TO-15 10/15/01 1,3-Dichlorobenzene ND ppb vA/ 0.1564 USEPA TO-15 10/15/01 1,4-Dichloro benzene 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-Trlchloroben2ene ND ppb v/v 0.1785 USEPA TO-15 10/15/01 Hexachloro-1 .S-Butadiene ND ppb v/v 0.1976 USEPA TO-15 10/15/01 Tentatively Identified Compounds 10/15/01 Butane 1.04 ppb v/v USEPA TO-15 10/15/01 2-Methyl butane 1.91 ppb v/v USEPA TO-15 10/15/01 Pentane 0,94 ppb v/v USEPA TO-15 10/15/01

John Pedneault Page 4 of 16 ND=RESULT IS EQUAL TO OR LESS THAN MDL Lab Director NYSELAP #10224 MW0E #46075

CITY_21MC100_002966117

NYC-WTC_000187258