NYC-WTC_000187612

NYC 9/11 Public Portal Document 10/17/2001 10:50 6314676905 PEDNEAULT ASSOCIATES PAGE 10

Pnpared E^ clusiveiy For: PEDNEA ULT ASSOCIATES, INC. NYCDEP-Enjergency Response & Tech Assmt. 161! HWTHKt'EHUE. BOX20S. BOffEMU, N V- II7I6

96-05 Horace Hard ing Expressway LAB#: 01100280 Corona , NY 11368 PROJECT ID WORLD TRADE CENTER-5 Boro Sampling (718) 59,5-4650 MATRIX: AIR\GAS

.............. - REPORT Date COLLECT DATE DATE received RELEASE DATE 10/13/01 9:03 PM 10/13/01 11:40:00 PM 10/16/01 10/16/01 SAMPLE ORIGIN ATLANTIC AVE. & SMITH ST.. BROOKLYN SAMPLE ID#: 011 00280-005 RESULT UNITS M.D.L. METHOD analysis date Dichlorodifluoromethane 0.70 ppb v/v 0.123 USEPATO-15 10/14/01 Chloromethane 0.79 ppb v/v 0.1037 USEPATO-15 10/14/01 1,2-Dlchlorot9trafluorciethane ND ppb v/v 0.2886 USEPATO-15 10/14/01 Vinyl Chloride ND ppbv/v 0.1249 USEPATO-15 10/14/01 Bromomethane ND ppb V/V 0.2418 USEPATO-15 10/14/01 Chloroelhane ND ppb v/v 0.2478 USEPATO-15 10/14/01 Trichlorofluoromethane 0.46 ppb v/v 0.1839 USEPATO-15 10/14/01 1,1-Dichlorioethene ND ppb v/v 0.0799 USEPATO-15 10/14/01 Methylene chloride ND ppbv/v 0.1909 USEPATO-15 10/14/01 Freon 113 ND ppb u/v 0.161 USEPATO-15 10/14/01 1,1-Dlchloroethane ND ppb v/v 0.1398 USEPATO-15 10/14/01 Methyl-tert-butyl ether 1.70 ppb vly 0.126 USEPA TO-15 tO/14/01 cis-1,2-Oichloroethene ND ppbv/v 0.1783 USEPATO-15 10/14/01 Chloroform ND ppbv/v 0.1681 USEPATO-15 10/14/01 1,2-Dichloroethane ND ppb v/v 0.1668 USEPATO-15 10/14/01 1,1,1-Trichloroethane ND ppb v/v 0.0974 USEPATO-15 10/14/01 Benzene 1.02 ppbv/v 0.1201 USEPATO-15 10/14/01 Carbon Tetrachloride 0.11 ppb v/v 0.0922 USEPATO-15 10/14/01 1,2-Dlchloroprop3ne ND ppbv/v 0.1138 USEPATO-15 10/14/01 Trlchloroethene ND ppbv/v 0.1329 USEPATO-15 10/14/01 cis-1.3-Dichloropropene ND ppbv/v 0.0924 USEPA TO-15 10/14/01 trans-1,3-Dichloropropene ND ppbv/v 0.1222 USEPA TO-15 10/14/01 1,1,2-Trichloroe1han9 ND ppb vN 0.0696 USEPATO-15 10/14/01 Toluene 2.47 ppb v/v 0.0735 USEPATO-15 10/14/01 1,2-Dibromoethane ND ppbv/v 0.0971 USEPATO-15 10/14/01 Tetrachloroethene ND ppb v/v 0.0845 USEPATO-15 10/14/01 Chlorobenzene ND ppbv/v 0,1343 USEPATO-15 10/14/01 Ethylbenzene 0.38 ppb v/v 0.0744 USEPA TO-15 J 0/14/01

John Pedneault Page 9 of 16 NP=RESULT IS equal TO OR LESS THAN MDL Lab Director NYS ELAP #10224 IVIW0E #46075

CITY_21MC100_002968887

NYC-WTC_000187620