NYC-WTC_000187595

NYC 9/11 Public Portal Document 10/10/2001 10:46 &314676905 PEDNEAULT ASSDCIAIEE rwoc.

^PEDNEAULTASSOCIATES, INC.

ffl J 6J 5 NINTH AVENUE, BOX 205 BOHEMIA, N.Y. M7I6 Phone: (531) 467-8477 Fax: (631) 467-6905 AMERICA'S TEST LAR! Prepared Exchistvely For PEDNEAULTASSOCIATES, INC. NYCDEP-Emergency Response & Tech Assmt, 16/5 WNTffAl'EHUE. BOX20S. BOHEMIA. H.K IJ7I6

96-05 Horace Herding Expressway LAB#: 01100168 Corona NY 11368 PROJECT ID WORLD TRADE CENTER-5 Boro Sampling (718) 595-4650 MATRIX: AIR\GAS

COLLECT DATE DATE RECEIVED release date REPORT DATE lD/7/01 6:30 PM 10/8/01 12:25:00 AM 10/9/01 10/9/01 sample origin BROADWAY AVE & 31st ST., QUEENS SAMPLE ID#: 01100168-001 RESULT UNITS M.D.L. METHOD analysis date Dichlorodifluoromethane 0.64 ppb v/v 0,123 USEPA TO-15 10/8/01 Chloromethane 0.75 ppb v/v 0.1037 USEPA TO-15 10/8/01 1,2-DlchlOfo(etrafluoroett' ane ND ppb v/v 0,2686 USEPATO-15 10/8/01 Vinyl Chloride ND ppb v/v 0.1249 USEPA TO-15 10/8/01 Bromomethane ND ppb v/v 0.2418 USEPA TO-15 10/8/01 Chloroethane ND ppb v/v 0.2478 USEPA TO-15 10/8/01 Trichlorofluoromethane 0.27 ppb v/v 0.1839 USEPA TO-15 10/8/01 1,1-Dichloroethene ND ppb v/v 0,0799 USEPA TO-15 10/8/01 Methylene chloride ND ppb v/v 0.1909 USEPA TO-15 10/8/01 Freon 113 ND ppb v/v 0.161 USEPA TO-15 10/8/01 1,1-Dichloroethane ND ppb v/v 0.1398 USEPA TO-15 10/8/01 Methyl-tert-butyl ether 1.70 ppb v/v 0.128 USEPA TO-15 10/8/01 cls-1,2-Dichloroettiene ND ppb v/v 0,1783 USEPA TO-15 10/8/01 Chloroform ND ppb v/v 0.1681 USEPA TO-15 10/8/01 1,2-Dichloroethane ND ppb v/v 0.1688 USEPA TO-15 10/8/01 1,1,1-Trlchloroethane ND ppb v/v 0.0974 USEPA TO-15 10/8/01 Benzene 0.32 ppb v/v 0.1201 USEPA TO-15 10/8/01 Carbon Tetrachloride 0 11 ppb v/v 0.0922 USEPA TO-15 10/8/01 1,2-Dlchloropropane ND ppb v/v 0.1136 USEPA TO-15 10/8/01 Trichlorosthene ND ppb v/v 0.1329 USEPA TO-15 10/8/01 cis-1,3-Dichloropropene ND ppb v/v 0.0924 USEPA TO-15 10/8/01 I trans-1,3-DichloropropGrie ND ppb v/v 0.1222 USEPA TO-15 10/8/01

John Pedneault Page 1 of 14 ND=RESULT IS EQUAL TO OR LESS THaN MDL Lab Director NYS ELAP #10224 MWBE #46075

CITY_21MC100_002968751

NYC-WTC_000187595