NYC-WTC_000187255

NYC 9/11 Public Portal Document

10/17/2001 15:15 6314676905 PEDNEAULT ASSOCIATES PAGE 14

Prepared Exclusively For: PEDNEAULTASSOCIATES, INC NYCDEP-Emergency Response & Tech Assmt. leHWHUf AVENUE. BOX20S. B0/iEMA. N.Y. iniC 96-05 Horace Harding Expressway LAB#: 01100307 Corona NY 11368 PROJECT ID WORLD TRADE CENTER- 5 Boro Sampling (718)595-4650 MATRIX: AIRIGAS

I 1,1.2-Tr1chloroethan9 ND ppb v/v 0.0896 USEPA TO-15 10/15/01 Toluene 5.71 ppb v/v 0.0735 USEPA TO-15 10/15/01 1,2-Dibromoethane ND ppb v/v 0.0971 USEPA TO-15 10/15/01 Tetrachloroethene 0.20 ppb v/v 0.0845 USEPA TO-15 10/15/01 Chlorobenzene ND ppb v/v 0.1343 USEPA TO-15 10/15/01 Ethylbenzene 1.02 ppb v/v 0.0744 USEPA TO-15 10/15/01 m.p-Xylene 3.05 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-TetrachloroGth9ne ND ppb v/v 0.1471 USEPA TO-15 10/15/01 o-Xylene 1.11 ppb V/V 0.0111 USEPA TO-15 10/15/01 1,3.6-Tilmethylbenzene 0.33 ppb v/v 0.0757 USEPA TO-1S 10/15/01 1,2,4-Trimethylbonzene 0.97 ppb v/v 0.1511 USEPA TO-15 10/15/01 1,3-Dichlorob9nzene ND ppb v/v 0.1564 USEPA TO-15 10/15/01 1.4-Dlchlorobenzene ND ppb v/v 0.169 USEPA TO-15 10/15/01 (_______ _ _________ 1,2-Dichlorobonzene NO ppb v/v 0.2014 USEPA TO-15 10/15/01 1,2,4-Trlohloroben2ene ND ppb v/v 0.1785 USEPA TO-15 10/15/01 Hexachloro-1,3-Butadiene ND ppb v/v 0.1976 USEPA TO-15 10/15/01 Tentatively Identlfled Compounds 10/15/01

Propene 1.84 ppb v/v USEPA TO-15 10/15/01 2-Methyl-1-propene 1.35 ppb v/v USEPA TO-15 10/15/01 2-Methyl butane 2.65 ppb v/v USEPA TO-15 10/15/01 Pentane 1.28 ppb v/v USEPATO-15 10/15/01 3-Methyl pentane 0.98 ppb v/v USEPATO-15 10/15/01

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

CITY_21MC100_0 02966115

NYC-WTC_000187256