NYC-WTC_000187444

NYC 9/11 Public Portal Document

10/03/2001 17;29 t3146/6905 ASSGCIAIES HAGE 12

■ [ J Prepared Exclusively Por: PEDNEA UETASSOCIA TES, iNC. NYCDEP-Emergency Response & Tech Assmt. l6ISWHrH4(TmE. sox205, BOHEMIA. N.Y. II7!( 96-05 Horace Harding Expressway LAB#: 01090387 Corona NY 11368 PROJECT ID WORLD TRADE CENTER-5 Boro Sampling

(718) 595-4650 MATRIX; AIRGAS

COLLECT DATE DATE RECEIVED RELEASE DATE REPORT DATE 9/30/01 9:45 PM 9/30/01 11:28:00 AM 10/3/01 10/3/01

SAMPLE ORIGIN ATLANTIC AVE. & SMITH ST., BROOKLYN SAMPLE IDS: 01090387-005 RESULT UNITS M.D.L. METHOD ANALYSIS DATE Dichlorodifluoromethane 0.50 ppb v/v 0.123 USEPA TO-15 10/1/0) Chloromethane 0.68 ppb v/v 0.1037 U SEPA TO-15 10/1/01 1,2-Dlohlorotetrafluoroethane ND ppb v/v 0.2886 USEPA TO-15 lO/t/01

Vinyl Chloride ND ppb v/v 0.1249 USEPA TO-15 10/1/01 Bromo methane ND ppb v/v 0.2418 USEPA TO-15 10/1/01 Chloroethane ND ppb v/v 0.2478 USEPA TO-15 10/1/01 1 T richlorofluoromethane ND ppb v/v 0.1839 USEPA TO-15 10/1/01 1,1-Dlchloroetbene ND ppb v/v 0.0799 USEPA TO-15 10/1/01 Methylene chloride ND ppb v/v 0.1909 USEPA TO-15 10/1/01 Freon 113 ND ppb v/v 0.161 USEPA TO-15 lO/l/OI 1,1-Dichloroethane ND ppb v/v 0.1398 USEPA TO-15 10/1/01 Methyl-tert-butyl ether 0.48 ppb v/v 0.128 USEPA TO-15 10/1/01 cls-1,2-Dichloroethene ND ppb v/v 0.1783 USEPA TO-15 lO/I/Ol Chloroform ND ppb v/v 0.1681 USEPA TO-15 lO/l/Ol 1,2-Dichloroethan0 ND ppb v/v 0.16B8 USEPA TO-15 10/1/01 1,1,1-Trichloroethare ND ppb v/v 0.0974 USEPA TO-15 10/1/01 Benzene 0.42 ppb v/v 0.1201 USEPA TO-15 10/1/01 Carbon Tetrachloride 0.10 ppb vlv 0.0922 USEPA TO-15 10/1/01 1,2-Dichloroprapane ND ppb v/v 0,1138 USEPA TO-15 10/1/01 Trichloroethene ND ppb v/v 0.1329 USEPA TO-15 10/1/01 ci3-1,3-Dlchloropropene ND ppb v/v 0.0924 USEPA TO-15 i 0/1/01 trans-1,3-Dichloropropene ND ppb v/v 0.1222 USEPA TO-15 10/1/01 1,1,2-Trichloroelhane ND ppb v/v 0.0896 USEPA TO-15 10/1/01 I---------------------------------- i Toluene 0,71 ppb vlv 0.0735 USEPA TO-15 10/1/01 1,2-Dlbromoethane ND ppb v/v 0.0971 USEPA TO-15 10/1/01 Tetrachloroethens ND ppb v/v 0.0845 USEPA TO-15 10/1/01 Chlorobenzene ND ppb v/v 0.1343 USEPA TO-15 10/1/01 Ethylbenzene 0.14 ppb v/v 0.0744 USEPA TO-15 lO/I/Ol

John Pedneaul; Pago 9 of 14 Lab Director NI>=RESVLT IS EQUAL TO OR LESS THAN MHL NYS cLAP #10224 MWBE #48075

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