NYC-WTC_000187444

NYC 9/11 Public Portal Document

10/03/2001 l’:23 6314076300 HEDNLAULI ASSOCIATES PAGE 1J

' [ -I prepared B^clusively For />£7)/V£AUl7’ASSOC/AT£S, INC. bohemia, n.y ii7I6 NYCDEP-Emergency Response & Tech Assmt, 96-05 Horace Harding Expressway LAB#: 01090387 Corona NY 11368 PROJECT ID WORLD TRADE CENTER-5 Boro Sampling (7 58) 595-4650 MATRIX: AIR\GAS

m,p-Xyiene 0.41 ppb v/v 0.1785 USEPA TO-15 tO/1/0!

Styrene ND ppb v/v 0,0896 USEPA TO-15 10/1/01 1,1.2,2-TetrachlQroethane ND ppbv/v 0.1471 USEPA TO-15 10/1/01 o-Xylene 0,14 ppbv/v 0.0111 USEPA TO-16 10/1/01 1,3.5-Trimethylbenzene ND ppbv/v 0.0757 USEPA TO-15 lO/I/Ol 1,2,4-Trimethylbenzene ND ppbv/v 0.1511 USEPA TO-15 10/1/0) 1,3“DlchlorobQnzone ND ppbv/v 0.1564 USEPA TO-15 10/1/01 1 .a-Dichlorobenzene ND ppb v/v 0,169 USEPA TO-15 10/1/01

1,2-Dichlorobenzeie ND ppb v/v 0.2014 USEPA TO-15 10/1/01 1,2,4-Trichlorobenzene ND ppbv/v 0.1785 USEPA TO-15 lO/l/OI Haxachloro-1,3-Butadiene ND ppbv/v 0.1976 USEPA TO-15 10/1/01

John Pedneault Page 10 of 14 Lab Director ND=RESULT IS EQUAL TO OR LESS THAN MDL NYS ELAP #10224 MWBE #46075

CITY_21MC100_002952729 NYC-WTC_000187453