NYC-WTC_000187271

NYC 9/11 Public Portal Document

10/23/2001 15:03 6314676905 PEDNEAULT ASSOCIATES PAGE 24

Prepared Exclusively Ear: PEDNEAULTASSOCIATES, INC. NYCDEP-Einergency Response & Tech Assnit. 16ISurin-f/Ai'EHae:. box205. bohemia, h r n?i6 96-05 Horace Harding Expressway LAB#: 01100404 Corona NY 1136S PROJECT ID WORLD TRADE CENTER- 5 Boro Sampling (718) 595-4650 MATRIX: AIR\GAS

COLLECT DATE pate RECEIVED RELEASE DATE REPORT date 10/21/01 3:00 PM 10/21/01 10:20:00 AM 10/23/01 10/23/01 SAMPLE ORIGIN TRIP BLANKS SAMPLE ID#: 01100404-008 RESULT UNITS M.D.L. METHOD ANALYSIS DATE : Dichlorodifluoromethane ND ppb v/v 0.123 USEPATO-15

Chloromethane ND ppb v/v 0.1037 USEPATO-15

1 .S-Dichlorotetrafiuoroethane ND ppb v/v 0.2086 USEPA TO-1S • Vinyl Chloride ND ppb v/v 0.1249 USEPATO-15

Bromomethane ND ppb v/v 0.2418 USEPATO-15

Chloroethane ND ppb v/v 0.2470 USEPA TO-15

Trichlorofluoromethane ND ppb v/v 0.1039 USEPATO-15

U-Dichloroethene ND ppb v/v 0.0799 USEPATO-15 Methylone chloride ND ppb v/v 0.1909 USEPATO-15 Freon 113 ND ppb v/v 0.161 USEPATO-15

1,1-Dichloroethane ND ppb v/v 0.1398 USEPATO-15

Methyl-tert-butyl ether ND ppb v/v 0,128 USEPATO-15

; Ci5-1.2-Dichloroethene ND ppb v/v 0.1783 USEPATO-15

Chloroform ND ppb v/v 0.1681 USEPATO-15

1,2-Dichloroeihane NO ppb v/v 0.1680 USEPATO-15

1,1,1-Trichloroethane ND ppb v/v 0.0974 USEPATO-15

Benzene ND ppb v/v 0.1201 USEPATO-15

Carbon Tetrachloride NO ppb v/v 0.0922 USEPATO-15

1,2-Dichloropfopane ND ppb v/v 0.1139 USEPATO-15

Trlchloroethene ND ppb v/v 0.1329 USEPATO-15

cis-1.3-Dlchloropropsne ND ppb v/v 0.0924 USEPATO-15

trans-1,3-Dichloropropena ND ppb v/v 0.1222 USEPATO-15

l.1,2-Tr)Chloroethane ND ppb v/v 0.0896 USEPATO-15

Toluene ND ppb v/v 0.0735 USEPATO-15

1.2-Dibromoethano ND ppb v/v 0.0971 USEPATO-15

Tetraohlofoethene ND ppb v/v 0.0845 USEPATO-15

Chlorobenzene NO ppbwAz 0.1343 USEPATO-15 I------------------------------- I Ethylbenzene ND ppb v/v 0.0744 USEPATO-15

John Pedneault Page 15 of 16 ND-RESULT IS EQUAL TO OR LESS THAN MDL Lab Director NYS ELAP #10224 MWBE #46075

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NYC-WTC_000187285