NYC-WTC_000203356

NYC 9/11 Public Portal Document

Prepared Exclusively For: PEDNEAULTASSOCIATES, INC. 1615 NINTH AVENUE, BOX 205, BOHEMIA. NY. 11716 NYCDEP-Emergency Response & Tech Assmt. 96-05 Horace Harding Expre.ssway LAB#: 01100508 Corona NY 11368 PROJECT ID WORLD TRADE CENTER- 5 Boro Sampling (718) 595-4650 MATRIX: AIR\GAS

I m,p-Xylene 0.89 ppb v/v 0.1785 USEPATO-15 10/29/01 Styrene 0.10 ppb v/v 0.0896 USEPATO-15 10/29/0] 1,1,2,2-Tetrachloroethane ND ppb v/v 0.1471 USEPA TO-15 10/29/01 o-Xylene 0.28 ppb v/v 0.0111 USEPATO-15 10/29/01 1,3,5-Trimethylbenzene ND ppb vlv 0.0757 USEPATO-15 10/29/01 1.2,4-Trimethylbenzene 0.16 ppb v/v 0.1511 USEPATO-15 10/29/01 1,3-Dichlorobenzene ND ppb v/v 0.1564 USEPATO-15 10/29/01 1,4-Dichlorobenzene ND ppb v/v 0.169 USEPATO-15 10/29/01 1,2-Dichlorobenzene ND ppb v/v 0.2014 USEPA TO-15 10/29/01 1,2,4-Trichlorobenzene ND ppb v/v 0.1785 USEPATO-15 10/29/01 Hexachloro-1,3-Butadiene ND ppb v/v 0.1976 USEPA TO-15 10/29/01 Tentatively Identified Compounds USEPATO-15 10/29/01 Propene 1.49 ppb v/v USEPA TO-15 10/29/01 2-Methyl propene 0.93 ppb v/v USEPATO-15 10/29/01 2-Methyl butane 1.05 ppb v/v USEPATO-15 10/29/01

John Pedneault Page 4 of 16 ND=RESULT IS EQUAL TO OR LESS THAN MDL Lab Director NYS ELAP #10224 NR=NON REPORTABLE RESULTS MWEiE #46075

CITY_21MC100_003071388

NYC-WTC_000203359