NYC-WTC_000187271

NYC 9/11 Public Portal Document

10/23/2001 15:03 6314676905 PEDNEAULT ASSOCIATES PAGE 11

1 Prepared Exclustvety For: PEDNEA UL TASSOCIA TES, INC. Y^'YCD^P-'Emergeacy Response & Tech Assrat. I6ISWNrHA('ENUE, BOX205. BOHEMIA. H.Y. 11715

96-05 Horace Harding Expressway LAB#: 01100404 Corona NY 11368 PROJECT ID WORLD TRADE CENTER- 5 Boro Sampling (718) 595-4650 MATRIX: AIR\GAS

I I 1,1.2-Trichloroethane ND ppb v/v 0.0896 USEPA TO-15 10/22/01 ; Toluene 4.01 ppb v/v 0.0735 USEPATO-15 10/22/01 : 1,2-Dibromoethane ND ppb v/v 0.0971 USEPATO-15 10/22/01 ,---------------------------- .' Tetrachloroethene 0.10 ppb v/v 0.0845 USEPATO-15 10/22/01 I

Chlorobenzene ND ppb v/v 0.1343 USEPATO-15 10/22/01 Ethylbenzene 0.61 ppb V/V 0.0744 USEPATO-15 10/22/01 m,p-Xylene 2.01 ppb v/v 0.1785 USEPATO-15 10/22/01 Styrene 0.13 ppb v/v 0.0896 USEPATO-15 10/22/01 1,1,2,2-Tetrachloroethane ND ppb v/v 0.1471 USEPATO-15 10/22/01 o-Xylene 0.75 ppb v/v 0.0111 USEPATO-15 10/22/01 1,3,5-Trimethylbenzene 0.23 ppb v/V 0.0757 USEPATO-15 10/22/01 • 1.2.4-Trimethylben2ene 0.80 ppb v/v 0.1511 USEPATO-1S 10/22/01 1,3-DichlQrobenzena ND ppb v/v 0.1564 USEPATO-15 10/22/01 1.4-Dichloroben2ene o.ia ppb v/v 0.169 USEPATO-15 10/22/01 1,2-Oichlorobenzene ND ppb v/v 0.2014 USEPATO-15 10/22/01 1,2.4-Trichlorobenzene ND ppbvA/ 0.1785 USEPATO-15 10/22/01 Hexachloro-1,3-Butadiene ND ppb v/v 0.1976 USEPATO-15 10/22/01 Tentatively Identified Compounds USEPATO-15 10/22/01 2,5-Dihydrofuran 1.61 ppb v/v USEPATO-15 10/22/01 2-Methyl propene 1.03 ppb v/v USEPATO-15 10/22/01 Butane 3.00 ppb v/v USEPATO-15 10/22/01 2-Melhyl butane 3.70 ppb v/v USEPATO-15 10/22/01 Pentane 1.18 ppb v/v USEPA TO-15 10/22/01 2-Methyl Pentane 1.15 ppb v/v USEPATO-15 10/22/01

John Pedneault Page 2 of 16 ND=RESULT IS EQUAL TO OR LESS THAN MDL Lab Director tUYS ELAP #10224 MWBE #46075

CITY_21MC100_0 02966267

NYC-WTC_000187272