NYC-WTC_000187612

NYC 9/11 Public Portal Document

10/17/2001 10:50 6314676305 PEDNEAULT ASSOCIATES PASE 05

C Prepared E)x,'usivefy Por: P£DNEA ULT ASSOCIATES, INC jeiSWNTHAVENUS. BOX205. BOHEMIA. N.r. 11716 NYCDEP-Emergency Response & Tech Assmt. 96-05 Horace Harding Expressway LAB#: 01100280 Corona , NY 11368 PROJECT ID WORLD TRADE CENTER-5 Boro Sampling (718) 555-4650 MATRIX: AIR\GAS

I . ' m,p-Xylen0 .1.23 ppb v/v 0.1785 USEPATO-15 10/14/01 Styrene ND ppb v/v 0.0896 USEPATO-15 10/14/01 1,1,2.2-TetrachloroettianG ND ppb v/v 0.1471 USEPATO-15 10/14/01 o-Xylene 0.45 ppb v/v 0.0111 USEPATO-15 10/14/01 1,3,5-Trlmethylben2ene 0.15 ppb vN 0.0757 USEPATO-15 10/14/01 1,2.4-Trimetbylb9nzGne 0.43 ppb v/v 0.1511 USEPATO-15 10/14/01 1,3-Dichlorobenzene ND ppb v/v 0.1564 USEPATO-15 20/24/01 1,4-Dich(oroben2ene NO ppb v/v 0.169 USEPATO-15 10/14/01 1,2-Dlchtorob0n2ene ND ppb v/v 0.2014 USEPATO-15 10/14/01 1,2,4-Trichtorobenzene ND ppb v/v 0.1785 USEPATO-15 10/14/01 Hex3chloro-1,3-Butadiene ND ppb v/v 0.1976 USEPATO-15 10/14/01 Tentatively Identified Compounds 10/14/01 IsQbutane 1.65 ppb v/v USEPATO-15 10/14/01 Butane 1,76 ppb v/v USEPATO-15 10/14/01 2-Me1byl butane 3.04 ppb v/v USEPATO-15 10/14/01 Pentane 1.08 ppb v/v USEPATO-15 10/14/01

John Pedneault Page 4 bl 16 ND=RESULT IS EQUAL TO OR LESS THAN MDL Lab Director NYS ELAP #10224 MWBE #46075

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NYC-WTC_000187615