NYC-WTC_000210737

NYC 9/11 Public Portal Document

13/1B/2U01 fa314b76305 PEDNEAULT ASSOCIATES PAUL 21

{’repared Exclustvety For PEDNEAVLrASSOCIATES, INC. KliN/mf/AVENUE, BOX705. BOHEMIA. N.r 11716 NYCDEP-Einergency Response & Tech Assmt. 96-05 Horace Harding Expressway LAB#: 01100166 Corona NY 11368 PROJECT ro WORLD TRADE CENTER-5 Boro Sampling (718) 595-4650 MATRIX: AIRIGAS

r rn.p-Xylene 4.49 ppb v/v 0.1785 USEPA TO-15 10/6/01

IStyrene 0.35 ppb v/v 0.0896 USEPA TO-15 10/6/01 1,1,2,2-Tetrachloroetbane ND ppb v/v 0.1471 USEPA TO-15 10/6/01

0-Xylene 1.62 ppb v/v 0.0111 USEPA TO-15 10/6/01

1,3,5-Trimethylbenzen© 0.68 ppb v/v 0.0757 USEPA TO-15 10/6/01 1,2,4-Trimethylbenzene 2.30 ppb v/v 0.1511 USEPA TO-15 10/6/01 1 .S-Oictiloroherizene ND ppb v/v 0.1564 USEPA TO-15 10/6/01 1,4-Dichloro benzene 0.22 ppb v/v 0.169 USEPA TO-15 10/6/01 1,2-Dichloro benzene ND ppb v/v 0.2014 USEPA TO-15 10/6/01 1,2,4-Trlcblorobenzene ND ppb v/v 0.1765 USEPA TO-15 10/6/01 HexachlorD-1,3-Butadiene ND ppb v/v 0.1976 USEPA TO-15 10/6/01 Tentatively Identified Compounds 10/6/01 Isobutane 2.79 ppb v/v USEPA TO-15 10/6/01 2-Methyl-1-propene 1.49 ppb v/v USEPA TO-15 10/6/01 Butane 2,88 ppb v/v USEPA TO-15 10/6/01 2-Methyl butane 6.76 ppb v/v USEPA TO-15 10/6/01 Acetone 1.14 ppb v/v USEPA TO-15 10/6/01 Pentane 1.89 ppb v/v USEPA TO-15 10/6/01 Isopropyl alcohol 4.89 ppb v/v USEPA TO-15 10/6/01 2-Methyl Pentane 2.50 ppb v/v USEPA TO-15 10/6/01 3-Methyl pentane 1.39 ppb v/v USEPA TO-15 10/6/01 Methyl cyclopentane 1.58 ppb v/v USEPA TO-15 10/6/01 2,2,4-Trimethyl Pentane 1.63 ppb v/v USEPA TO-15 10/6/01

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

CITY_21MC1OO_O11O6376O NYC-WTC_000210746