NYC-WTC_000210737

NYC 9/11 Public Portal Document

10/10/2001 10:39 6314676905 PEDNEAULT ASSOCIATES HAGL lb

r Prepaid Exclusively for: PEDNEAULTASSOCIATES, INC. leiSWNTHAVENUS. BOX 705, BOHEMIA, Vr 11716 MYCDEP-Emergency Response &c Tech Assmt. 96-05 Horace Harding Expressway LAB#: 01100166 Corona NY 11368 PROJECT ID WORLD TRADE CENTER-5 Boro Sampling

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SAMPLE ORIGEN CENTAL PARK N. & LENOX , MANHATTAN SAMPLE n>#: 01100166-003 RESULT UMTS M.D.L. method ANALYSIS DATE PicWorodlfluoromethane 0.61 ppb v/v 0.123 USEPATO-15 10/6/01

Chloromethane 0.54 ppb v/v 0.1037 USEPA TO-15 10/6/01

1,2-Dichforoletrafluoroethane ND ppb v/v 0,2886 USEPA TO-15 10/6/01 )------------------------------------------ I Vinyl Chloride ND ppb v/v 0.1249 USEPATO-15 10/6/01

E3romomethane ND ppb v/v 0,2418 USEPATO-15 10/6/01 Chloroethane ND ppb v/v 0.2478 USEPATO-15 10/6/01 Trichlorofluoromethane 0.32 ppb v/v 0.1839 USEPA TO-15 10/6/01 1,1 -Dichloroethene ND ppb v/v 0.0799 USEPA TO-15 10/6/01

Methylene chloride ND ppb v/v 0.1909 USEPATO-15 10/6/01 Freon 113 ND ppb v/v 0.161 USEPA TO-15 10/6/01

1,1-Dichloroethane ND ppb v/v 0,1398 USEPATO.15 10/6/01 Mettiyl-tert-butyl ether 6.26 ppb v/v 0.128 USEPA TO-15 10/6/01

cis-1,2-Dichloroethene ND ppb v/v 0.1783 USEPA TO-15 10/6/01 Chloroform ND ppb v/v 0.1681 USEPA TO-15 10/6/01 1,2-Dichforoethane ND ppb v/v 0 1688 USEPATO-15 10/6/01

1,1,1-Trichloro ethane ND ppb v/v 0.0974 USEPATO-15 10/6/01 Benzene 2.32 ppb v/v 0.1201 USEPATO-15 10/6/01 Carbon Tetrachloride 0.13 ppb v/v 0.0922 USEPATO-15 10/6/01 1,2-Dichloropropane ND ppb v/v 0.1138 USEPATO-15 10/6/01 Trichloroethene ND ppb v/v 0.1329 USEPA TO-15 10/6/01 cis-1,3-Dichloropropane ND ppb v/v 0.0924 USEPA TO-15 10/6/01 trans-1,3-Dichforoprop0ne ND ppb v/v 0.1222 USEPA TO-15 10/6/01 1,1,2-Tr1chloroethane ND ppb v/v 0.0896 USEPATO-15 10/6/01 Toluene 14.3 ppb v/v 0.0735 USEPATO-15 10/6/01 1,2-Dlbromoethane ND ppb v/v 0 0971 USEPA TO-15 10/6/01 Tetrachloroethene 0.27 ppb v/v 0.0845 USEPATO-15 10/6/01 Chlorobenzene ND ppb v/v 0.1343 USEPA TO-15 10/6/01 Ethylbenzene 4.27 ppb v/v 0.0744 USEPA TO-15 10/6/01

■John Podneault Page 5 of 14 NI>=RESULT IS EQUAL TO OR LESS THAN MDL Lab Director NYS ELAP #10224 fZWBE #46075

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