NYC-WTC_000187239

NYC 9/11 Public Portal Document 10/16/2001 14:48 631467bydb rtLUINCHUL. I HOOUL.1H I

Prepo'iiit Exelusiveiy for: JPEDNEAUlTASSOCfATES, INC. NYCDEP-Eitiergency Response & Tech Assrat. 1615 WHTff AVENUE. BOX205. BOHEMIA. N Y. II716 96-05 Horace Harding Expressway LAB#: 01100281 Corona NY 11368 PROJECT ID WORLD TRADE CENTER- 5 Boro Sampling (718) 595-4650 MATRIX: AIR\GAS I m.p-Xylene’ 1.51 ppb v/v 0.1785 USEPA TO-15 10/15/01 Styrene 0.23 ppb v/v 0.0896 USEPA TO-15 10/15/01 1.1,2,2-T etrachloroethane ND ppb v/v 0.1471 USEPA TO-15 10/15/01 o-Xylene 0.55 ppb v/u 0.0111 USEPA TO-15 10/15/01 1,3.5-Trimethylben2ene 0.14 ppb v/v 0.0757 USEPA TO-15 10/15/01 1.2,4-Trimethylban2ene 0.25 ppb v/v 0.1511 USEPA TO-15 10/15/01 1,3-D(Chloro benzene ND ppb v/v 0.1564 USEPA TO-15 10/15/01 1,4-Dichloroben2ene 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-Trichlorobenzene ND ppb v/v 0.1785 USEPA TO-15 10/15/01 Haxachloro-1,3-Butadiene ND ppb v/v 0.1976 USEPA TO-15 10/15/01 Tentatively Identified Compounds 10/15/01 2,5-Dihydrofuran 2.01 ppb v/v USEPA TO-15 10/15/01 2-Melhyl-1-pTOpen0 1.30 ppb v/v USEPA TO-15 10/15/01 Methylcyclopentane 1.37 ppb v/v USEPA TO-15 10/15/01

John Pedneault Page 16 of 16 N1>=RESULT IS EQUAL TO OR LESS THAN MDL Lab Director NYS ELAP #10224 MWBE #46075

CITY_21MC100_002966101

NYC-WTC_000187254