NYC-WTC_000187444

NYC 9/11 Public Portal Document

70/03/2001 IN 23 6314676'305 FtDNEAU^T ASSUC1ATE5 ^peu 10

Prepared Lxclustvety For: PEDNEAULTASSOCIATES, INC. NYCDEP-Emergency Response & Tech Assmt. 161SNWTHAVENUE. BOX20S. BOHEMJA. NY. H716

96-05 Horace Harding Expressway LAB#: 01090387 Corona NY 11368 PROJECT ID WORLD TRADE CENTER-5 Boro Sampling (7 IS) 595-4650 MATRIX: AIR\GAS

COLLECT DATE DATE RECEIVED RELEASE DATE REPORT DATE 9/30/01 9:20 PM 9/30/01 11:28:00 AM 10./3/01 10/3/01

SAMPLE origin BERRY ST. & NORTH 11th ST, BROOKLYN SAMPLE ID#: 01090387-004 UNITS method RESULT M.D.L. ANALYSIS date Dichlorodifluoromethane 0.51 ppb v/v 0.123 USEPA TO-15 10/1/01 Chloro methane 0.67 ppb v/v 0.1037 USEPA TO-15 10/1/01 j 1,2-Dichlorotetrafluoroethane ND ppb v/v 0.2886 USEPA TO-15 10/1/01 I

Vinyl Chloride ND ppb v/v C.1249 USEPA TO-15 10/1/01 Bromomethane ND ppb v/v 0.2418 USEPA TO-15 lO/l/Ol Chloroethane ND ppb v/v 0.2478 USEPA TO-15 lO/l/Ol T richlorofluoromelhane ND ppb v/v 0.1839 USEPA TO-15 10/1/01 1,1-Dlchloroethene ND ppb v/v 0.0799 USEPA TO-15 10/1/01 1 Methylene chloride ND ppb v/v 0.1909 USEPA TO-1S 10/1/01 Freon 113 ND ppb v/v 0.161 USEPA TO-15 10/1/01

1.1-Dichloroethane ND ppb v/v 0.1398 USEPA TO-15 lO/l/OI Methyl-tert-butyl ether 2.21 ppb v/v 0.128 USEPATO.15 10/1/0] cis-1,2-Dichloroethene ND ppb v/v 0.1783 USEPA TO-15 10/1/01 Chloroform ND ppb v/v 0.1681 USEPA TO-15 10/1/01 1,2-Dichloroethane ND ppb v/v 0.1688 USEPA TO-15 10/1/01 1,1,1-Trlchloroethane ND ppb v/v 0.0974 USEPA TO-15 lO/I/Ol Benzene 0.51 ppb v/v 0.1201 USEPA TO-15 10/1/01 Carbon Tetrachloride 0.11 ppb v/v 0.0922 USEPA TO-15 10/1/01 1,2-Dichloropropane ND ppb v/v 0.1138 USEPA TO-15 lO/l/Ol 1 J Trichloroethene ND ppb v/v 0.1329 USEPA TO-15 lO/I/OI cis-1,3-Dichloropropene ND ppb v/v 0.0924 USEPA TO-15 10/1/01 trans-1,3-Dichlorooropene ND ppb v/v 0.1222 USEPA TO-15 10/1/01 1,1,2-Trlchloroethane ND ppb v/v 0.0896 USEPA TO-15 10/1/01 Toluene 1.66 ppb v/v 0.0735 USEPATO.15 10/1/01 1,2-DibrQmoethane ND ppb v/v 0.0971 USEPA TO-15 10/1/01 Tetrachioroethene ND ppb v/v 0.0845 USEPA TO-15 10/1/01 I Chlarobenzone ND ppb v/v 0.1343 USEPA TO-15 10/1/01 Ethylbenzene 0.28 ppb v/v 0.0744 USEPA TO-15 10/1/01

John Pedneault Page 7 of 14 Lab Director ND=RESULT IS EQUAL TO OR LESS THAN MDL NYS tLAP #10224 MWBE #46075

CITY_21MC100_002952726

NYC-WTC_000187450