NYC-WTC_000210737

NYC 9/11 Public Portal Document

10/10/2001 10:33 631*1676905 PEDNEAULT ASSOCIATES P/1GE 23

r Prepared Exclusively Por: PEDNEAULTASSOCIATES, INC. NYCDEP-Emergency Response & Tech Assmt. 1611 m/THAf^NUS. BOyiOl. BOHEMIA. H.T. IIM6

96-05 Horace Harding Expressway LAB#: 01100166 Corona NY 11368 PROJECT ID WORLD TRADE CENTER-5 Boro Sampling (718) 595-4650 MATRIX; AIR\GAS

L rn.p-Xylene 22.5 ppb v/v 0.1785 USEPA TO-15 10/7/01

Styrene 1.28 ppb v/v 0.0896 USEPA TO-15 10/7/01 1,1,2.2-Tetrachloroe(tiane ND ppb v/v 0.1471 USEPA TO-15 10/7/01

o-Xylene 8.90 ppb v/v 0.0111 USEPA TO-15 10/7/01 1,3,5-T rimethylbenzene 3.00 ppb v/v 0.0757 USEPA TO-15 10/7/01 1.2,4-Trimethylbenzene 10.6 ppb v/v 0.1511 USEPA TO-15 10/7/01 1,3-Dichlorobenzene ND ppb v/v 0.1564 USEPA TO-15 10/7/01 1,4-Dichiorobenzene ND ppb v/v 0.169 USEPA TO-15 10/7/0) 1,2-Dlcnlorob9nzene ND ppb v/v 0.2014 USEPA TO-15 10/7/01 1,2,4-TrlchlOfObenzene NO ppb v/v 0.1785 USEPA TO-15 10/7/01 Hexachloro-1,3-Butadiene ND ppb v/v 0.1976 USEPA TO-15 10/7/01 Tentatively Identified Compounds 10/7/01 2-Methyl butane 12.4 ppb v/v USEPA TO-15 10/7/01 Pentane 5.33 ppb v/v USEPA TO-15 10/7/01 2-Methyl Pentane 8.15 ppb v/v USEPA TO 15 10/7/01 3-Methyl pentane 5.87 ppb v/v USEPA TO-15 10/7/01 2,2,4,4-Teiramefhyl pentane 4.06 ppb v/v USEPA TO-15 10/7/01

John Pedneault Page 12 of 14 Lab Director .ND=RESULT IS EQUAL TO OR LESS THAN MDL NVS ELAP #10224 W0E *46075

CITY_21MC100_01 1063762 NYC-WTC_000210748