NYC-WTC_000187444

NYC 9/11 Public Portal Document

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. [ PrepartdExclusively Po': ASSOCIATES, INC NYCDEP-Emcrgeacy Response &. Tech Assmt. 161SWNTV AVENUE. BOX IOS. SOHEMIA, y K I17I6

96-05 Horace Harding Expressway LAB#: 01090387 Corona NY 11368 PROJECT ID WORLD TRADE CENTER-5 BO'O Sampling (718) 595-4650 MATRIX: AIR\GAS

COLLECT DATE DATE RECEIVED RELEASE DATE REPORT DATE 9/30/01 8:15 PM 9/30/01 11:28:00 AM 10/3/01 10/3/01

SAMPLE ORIGIN CENTAL PARK N. & LENOX , MANHATTAN SAMPLE ID#; 01090387-003 METHOD RESULT LNITS M.D.L. ANALYSIS DATE Dichlorodifluoromethane 0,78 ppb 0.123 USEPA TO-15 10/1/01 Chloromethane 0 69 ppb v/v 0.1037 USEPA TO-15 lO/l/Ol

1,2-OlehlorotetrsflLioroethanG ND ppb v/v 0.2886 USEPA TO-15 10/1/01 Vinyl Chloride ND ppb v/v 0.1249 USEPA TO-15 10/1/01 Bromomethane ND ppb v/v 0.2418 USEPA TO-15 lO/I/Ol Chloroethane ND ppb vl-j 0.2478 USEPA TO-15 10/1/01 Trichlorofluoromethane 0.22 ppb v/v 0.183S USEPA TO-15 10/1/01 1,1-Dichloraethene 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 10/1/01 1,1-Dichloroethane ND ppb v/v 0.1398 USEPA TO-15 10/1/01 Me1hyl-tert-butyl ether 1.16 ppb v/v 0.128 USEPA TO-15 10/1/01 cis-1,2-Dichloroethene ND ppb v/v 0.1783 USEPA TO-115 10/1/01 Chloroform ND ppb v/v 0.1681 USEPA TO-II5 10/1/01 ' 1,2-Dichloroethane ND ppb vN 0.1688 USEPA TO-15 10/1/01

' 1,1,1-Trichloroethane ND ppb v/v 0.0974 USEPA TO-15 10/1/01 Benzene 0.56 ppb v/v 0.1201 USEPA TO-15 10/1/01 Carbon Tetrachloride 0.10 ppb v/v 0.0922 USEPA TO-15 10/1/01 1.2-Dichloropropane ND ppb v/v 0.1136 USEPA TO-15 lO/I/Ol Trlchloroethene ND ppb 0.1329 USEPA TO-15 10/1/01 cis-1,3-Dichloropropene ND ppb v/v 0.0924 USEPA TO-15 10/1/01 trans-1,3-Dichloropropene ND ppb v/v 0.1222 USEPA TO-15 10/1/01 1,1,2-Trichloroethane ND ppb v/v 0.0896 USEPA TO-15 10/1/01 Toluene 1.24 ppb v/v 0.0735 USEPA TO-15 10/1/01 ' 1,2-Dlbromoetharie ND ppb v/v 0.0971 USEPA TO-15 lO/l/Ol ' Telrachloroethene ND ppb v/v 0.0845 USEPA TO-15 lO/I/Ol Chlorobenzene ND ppb v/v 0.1343 USEPA TO-15 10/1/0) Ethylbenzene 0.22 ppb v/v 0.0744 USEPA TO-15 10/1/01

John Podncault Page 5 of 14 Lab Director ND«RE$ULT IS EQUAL TO OR LESS MDL NYS ELAP #10224 VWBE #46075

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NYC-WTC_000187448