NYC-WTC_000187612

NYC 9/11 Public Portal Document

10/17/2001 10:5E &314B76305 PEDNEAULT ASSOCIATES PAGE 06

1 c PEDNEAULTASSOCIATES, INC Prepared Ricluitvely For: 1615 WHTHAyEWE, BOX205. BOHEMIA, H.V 11716 NYCDEP-Einergency Response & Tech Assml, 96-05 Horace Harding Expressway LAB#: 01100280 Corona NY 11368 PROJECT ID WORLD TRADE CENTER-5 Boro Sampling (718) 595-4650 MATRIX: Al RIGAS

COLLECT DATE DATE RECEIVED RELEASE DATE REPORT DATE lO/13/o: 7:25 PM 10/13/01 11:40:00 PM 10/16/01 10/16/01 SAMPLE ORIGIN CENTAL PARK N. & LENOX , MANHATTAN SAMPLE ED#: 01100280-003 RESULT UNITS MJD.L. METHOD analysis date Dlchlorodifluoromethane- 0.73 ppb v/v 0.123 USEPA TO-15 10/14/01 Chloromothane 0.89 ppb v/v 0.1037 USEPA TO-15 10/14/01 1,2-Dichlorotetrafluoroeitiane ND ppb v/v 0.2886 USEPA TO-15 J 0/14/01 Vinyl Chloride ND ppb v/v 0.1249 USEPA TO-15 10/14/01 Bromomelhane ND ppb v/v 0.2418 USEPA TO-15 10/14/01 Chlorosthane ND ppb v/v 0.2478 USEPA TO-15 10/14/01 Trichlorofluorome thane 0.45 ppb v/v 0.1839 USEPA TO-15 10/14/01 1,1-Dichloroelhene ND ppb v/v 0.0799 USEPA TO-15 10/14/01 Methylene chloride ND ppb v/v 0.1909 USEPA TO-15 10/14/01 Freon 113 ND ppb v/v 0.161 USEPA TO-15 10/14/01 1,1-Dichloroelhane ND ppb v/v 0.1398 USEPA TO-15 10/14/01 Methyl-fert-butyl ether ND ppb v/v 0.128 USEPA TO-15 10/14/01 cis-1,2-Dichloro6there ND ppb v/v 0.1783 USEPA TO-15 10/14/01 Chloroform ND ppb v/v 0.1661 USEPA TO-15 10/14/01 1,2-Dichloroe<hane ND ppb v/v 0.1688 USEPATO.15 10/14/01 1,1,1-Trichloroefharie ND ppb v/v 0.0974 USEPA TO-15 10/14/01 Benzene 2.54 ppb v/v 0.1201 USEPA TO-15 10/14/01 Carbon Tetrachloride ND ppb v/v 0.0922 USEPA TO-15 10/14/01 1,2-Dichloroprop3ne ND ppb v/v 0.1138 USEPA TO-15 10/14/01 Trichloroethene ND ppb v/v 0.1329 USEPA TO-15 10/14/01 cis-1,3-DichlorQpropenij ND ppb v/v 0.0924 USEPA TO-15 10/14/01 trans-1,3-DichloropfOpene 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 4.78 ppb v/v 0.0735 USEPA TO-15 10/14/01 1,2-Dibrornoethane ND ppb v/v 0.0971 USEPA TO-15 10/14/01 Tetra chloroethene 0.16 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 0.74 ppb v/v 0.0744 USEPA TO-15 10/14/01

John Pedneault Page 5 of 16 Lab Director ND=RESULT IS EQUAL TO OR LESS THAN MDL NYS ELAP #10224 MWBE #46075

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