NYC-WTC_000187612

NYC 9/11 Public Portal Document

10/17/2001 10:50 6314676905 PEDNEAULT ASSOCIATES PASE 04

] Prepared Exclusively For: PEDNEAULTASSOCIATJES, INC. /6JSNINTHArEmE, SOX20S. BOHENHA. N. Y. 1J716 NYCDEP-Emergency Response & Tech Assmt. 96-05 Horace Harding Expressway LAB#: 01100280 Corona NY 11368 PROJECT ID WORLD TRADE CENTER-5 Boro Sampling (718)55'5-4650 MATRIX; AIR\GAS

COLLECT DATE D.4TE RECEIVED RELEASE DATE REPORT DATE lG/13/O; 6:50 PM 10/13/01 11:40:00 PM 10/16/01 10/16/01

SAMPLE ORIGIN 138th St. & 3rd AVENUE, BRONX SAMPLE ID#: 01100280-002 RESULT HNTTS M.D.L. METHOD AN A. LYSIS DATE Dichlorodifluoromethane 0.66 ppb v/v 0.123 USEPA TO-15 10/14/01 Chloromethane 0,57 ppb v/v 0.1037 USEPA TO-15 10/14/01 1,2-Dichlorotetrafluoroethane ND ppb v/v 0.2886 USEPA TO-15 10/14/01 Vinyl Chloride ND ppb v/v 0.1249 USEPA TO-15 10/14/01 Bromomethane ND ppb v/v 0.2418 USEPA TO-15 10/14/01 Chloroethane ND ppb v/v 0.2478 USEPA TO-15 10/14/01 T richlorofluoromethane 0.40 ppb v/v 0.1839 USEPA TO-15 10/14/01 1,1-Dlchloroethene ND ppb v/v 0.0799 USEPA TO-15 10/14/01 Methylene chloride ND ppb v/v 0.1909 USEPA TO-15 I0/I4/0I Freon 113 ND ppb v/v 0.161 USEPA TO-15 10/14/01 1,1-Dichloroethano ND ppb v/v 0.1398 USEPA TO-15 10/14/01 Methyl-tert-butyl ether ND ppb v/v 0.128 USEPA TO-15 10/14/01 cts-1,2-Dichloroethene ND ppb v/v 0.1783 USEPA TO-15 10/14/01 Chloroform ND ppb v/v 0.1681 USEPA TO-15 10/14/01 1,2-Dichloroethane ND ppb v/v 0.1688 USEPA TO-15 10/14/01 1,1,1-Trichloroethane ND ppb v/v 0.0974 USEPA TO-15 10/14/01 Benzene 1.00 ppb v/v 0.1201 USEPA TO-15 10/14/01 Carbon Tetrachloride 0.10 ppb v/v 0.0922 USEPA TO-15 10/14/01 1,2-Dichloropropane NO ppb v/v 0.1138 USEPA TO-15 10/14/01 Trichloro ethene ND ppb v/v 0.1329 USEPA TO-15 10/14/01 cls-1,3-Dlchloropropen6i ND ppb v/v 0.0924 USEPA TO-15 10/14/01 lran3-1,3-Dichloropropene ND ppb v/v 0.1222 USEPA TO-15 10/14/01 1,1,2-Trichloroethane ND ppb v/v 0.0896 USEPA TO-15 10/14/01 Toluene 2.96 ppb v/v 0.0735 USEPA TO-15 10/14/01 1,2-Oibromoethane ND ppb v/v 0.0971 USEPA TO-15 10/14/01 Tetrachloroethene 0.17 ppb v/v 0.0845 USEPA TO-15 10/14/01 Chlorobenzene ND ppb v/v 0.1343 USEPA TO-15 10/14/01 Ethylbenzene 0.41 ppb v/v 0.0744 USEPA TO-15 10/14/01

John Pedneault Page 3 of 16 ND-RESULT IS EQUAL TO OR LESS THAN MDL Lab Director NYS elap #10224 MWEJE #46075

CITY_21MC100_002968881 NYC-WTC_000187614