NYC-WTC_000203356

NYC 9/11 Public Portal Document

, [ ] Prepared Exclusively Eor: PEDNEAULTASSOCIATES, INC. NYCDEP-Emergency Response & Tech Assmt. 1615 NINTH AVENUE, BOX 205, BOHEMIA, N.Y. 11716

96-05 Horace Harding Expressway LAB#: 01100508 Corona NY 11368 PROJECT ID WORLD TRADE CENTER- 5 Boro Sampling (718) 595-4650 MATRIX; AIR\GAS

I 1,1,2-Trichloroethane ND ppb vZv 0.0896 USEPATO-15 10/29/01 Toluene 5.19 ppb vZv 0.0735 USEPA TO-15 10/29/01 1,2-Dibromoethane ND ppb v/v 0.0971 USEPATO-15 10/29/01

Tetrachloroelnene ND ppb v/v 0.0845 USEPA TO-15 10/29/01 Chlorobenzene ND ppb v/v 0.1343 USEPATO-15 10/29/01 Ethylbenzene 0.67 ppb v/v 0.0744 USEPATO-15 10/29/01 m,p-Xylene 1.85 ppb v/v 0.1785 USEPATO-15 10/29/01 Styrene 0.11 ppb v/v 0.0896 USEPATO-15 10/29/01 1,1,2.2-Tetrachloroethane ND ppb v/v 0.1471 USEPATO-15 10/29/01 o-Xylene 0.68 ppb nN 0.0111 USEPATO-15 10/29/01 1,3,5-Trimethylbenzcne 0.19 ppb v/v 0.0757 USEPATO-15 lO/29/’Ol

1,2,4-Trimethylbenzene 0.62 ppb v/v 0.1511 USEPATO-15 10/29/01

1,3-Dichlorobenzene ND ppb v/v 0.1564 USEPATO-15 10/29/01 (-------------------------------- ( 1,4-Dichlorobenzene ND ppb nN 0.169 USEPATO-15 10/29'01

1.2-Dichlorobenzene ND ppb v/v 0.2014 USEPATO-15 10/29/01 1,2,4-Trichlorobenzene ND ppb v/v 0.1785 USEPA TO-15 10/29/01 Hexachloro-1.3-Butadiene ND ppb v/v 0.1976 USEPATO-15 10/29/01 Tentatively Identified Compounds USEPA TO-15 10/29/01 Propene 1.81 ppb v/v USEPATO-15 10/29/01

2-Methyl propene 1.57 ppb v/v USEPA TO-15 10/29/01 Butane 2.49 ppb v/v USEPA TO-15 10/29/01 2-Methyl butane 4.72 ppb v/v USEPATO-15 10/29/01 Pentane 2.10 ppb v/v USEPATO-15 10/29/01

2-Methyl Pentane 3.18 ppb v/v USEPATO-15 10/29/01 3-Methyl pentane 1.81 ppb v/v USEPATO-15 10/29/01

2,2,4-Trimethyl Penlane 1.46 ppb v/v USEPA TO-15 10/29/01

Heptane 1.03 ppb v/v USEPATO-15 10/29/01

John Pedneault Page 2 of 16 ND=RESULT IS EQUAL TO OR LESS THAN MDL Lab Director NYS ELAP #10224 NR=NON REPORTABLE RESULTS MWBE #46075

CITY_21MC100_003071386 NYC-WTC_000203357