NYC-WTC_000187444

NYC 9/11 Public Portal Document

6JI 46/63ab PtDNEAULT ASSOCIATES PAGE as la/03/2081 1/:2S

Prepared Exclusively Fof" PJEDNEAULTASSOCIATES, INC. NYCDEP-Emergency Response & Tech Assmt. sox205. SOffSMA. XY.

96-05 Horace Harding Expressway LAB#: 01090387 Corona NY 11368 PROJECT ID WORLD TRADE CENTER-5 Boro Sampling (7:8) 595-4650 MATRIX: AIRIGAS X_______ _ i 1.1.2-Trichloroe1hane ND ppb v/v 0.0896 USEPA TO-15 lO/I/Ol I Toluene 3.13 ppb v/v 0.0735 USEPA TO-15 10/1/01 1,2-Dibromoethane ND ppb v/v 0.0971 USEPA TO-15 10/1/01 Tetrachloroethene ND ppb v/v 0.0645 USEPA TO-15 10/1/0, Chlorobenzene ND ppb v/v 0.1343 USEPA TO-15 10/1/01 Ethylbenzene 0.66 ppb v/v 0.0744 USEPA TO-15 10/1/01 m.p-Xylene 1.84 ppb v/v 0.1785 USEPA TO-15 10/1/01 Styrene 0.18 ppb v/v 0.0896 USEPA TO-15 10/1/01 1,1,2,2-Tetrachloroethan0 ND ppb v/v 0.1471 USEPA TO-15 10/1/01 o-Xylene 0.70 ppb v/v 0.0111 USEPA TO-15 10/1/01

1,3.5-Trimethylbenzene 0.27 ppb 'tjl'j 0.0757 USEPA TO-15 10/1/01 1.2,4-Tr[methylb9nzene 0.83 ppb v/v 0.1511 USEPA TO-15 10/1/01 1,3-Dichloroben2ene ND ppb v/v 0.1564 USEPA TO-1,5 10/1/01

1,4-Dichlorobenzerie 0.28 ppb v/v 0.169 USEPA TO-15 10/1/01 1,2-Dichlorobenzene ND ppb v/v 0.2014 USEPA TO-15 10/1/01 I 1,2,4-TrichlQroben2ene 0.69 ppb v/v 0.1785 USEPA TO-15 10/1/01 5------------------------ I Hexachloro-1,3-Butadi0ne 0.28 ppb v/v 0.1976 USEPA TO-15 10/1/01 i Tentatively Identified Connpounds 10/1/01 I 2-Methyl butane 1.39 ppb v/v USEPA TO-15 lO/l/Ol

John Pedneault Page 2 of 14 Lab Dtreclor ITD^RESULT IS EQUAL TO OR LESS I UA> MDL NYS ELAP #10224 MW0E #46075

CITY_21MC100_002952721

NYC-WTC_000187445