NYC-WTC_000187581

NYC 9/11 Public Portal Document

10/04/2001 17:20 6314676905 PEDNEAULT ASSOCIATES PAGE 20

r Prepared Exclusively For: PEDNEAULTASSOaATES, INC NYCDEP-Emergency Response & Tech Assmt. I6!S WNTHAl'BWE. BOX20i, BOffEM/A. ff.Y. H7I6

96-05 Horace Harding Expressway LAB#; 01100065 Corona NY 11368 PROJECT ID WORLD TRADE CENTER-5 Borc Sampling (718) 595-4650 MATRIX: AIRIGAS

COLLECT DATE DATE RECEIVED RELEASE DATE REPORT PATE 10/2/01 10:25 PM 10/3/01 1:10:00 AM 10/4/01 tO/4/01

SAMPLE ORIGIN ATLANTIC AVE. & SMITH ST., BROOKLYN SAMPLE ID#: 0110(1065-005 RESULT UNITS M.D.L. METHOD analysis Date Dichlorodifluoromethane 0.99 ppb v/v 0.123 USEPATO-15 10/3/01 Chloromethane 0.91 ppb v/v 0.1037 USEPATO-15 10/3/01 1,2-Dichlorotetrafluoroethane ND ppb v/v 0.2886 USEPATO-15 10/3/01 Vinyl Chloride NO ppb v/v 0.1249 USEPATO-15 10/3/01

Bromomethane 1.39 ppb v/v 0.2418 USEPATO-15 10/3/01

Chloroethane ND ppb \/l\i 0.2478 USEPATO-15 10/3/01 Trichlorofluoromethane 0.46 ppb v/v 0.1839 USEPATO-15 10/3/01 1,1-Dichloroethene ND ppb v/v 0.0799 USEPATO-15 10/3/01

Methylene chloride ND ppb v/v 0.1909 USEPATO-15 10/3/01 Freon 113 ND ppb v/v 0.161 USEPA TO-15 10/3/01 1,1-Dichloroethane ND ppb v/v 0.1398 USEPA TO-15 10/3/01 Methyl-tert-bufyl ether 16.0 ppb v/v 0.128 USEPA TO-15 10/3/01

cis-1,2-Dichloroethen(: ND ppb v/v 0.1783 USEPATO-15 10/3/01 Chloroform ND ppb v/v 0.1681 USEPATO-15 10/3/01 1.2-DichloroBthane ND ppb v/v 0.1688 USEPA TO-15 10/3/01 1,1,1-Trichloroethane ND ppb v/v 0.0974 USEPA TO-15 10/3/01 Benzene 3.27 ppb v/v 0.1201 USEPATO-15 10/3/01

Carbon Tetrachloride 0.15 ppb v/v 0.0922 USEPATO-15 10/3/01 1,2-Dichloropropane ND ppb v/v 0.1138 USEPA TO-15 10/3/01 Trichloroethene 0.16 ppb v/v 0.1329 USEPATO-15 10/3/01 cls-1,3-Dlchloropropene ND ppb v/v 0.0924 USEPATO-15 10/3/01 trans-1,3-Dlchloropropene ND ppb v/v 0.1222 USEPATO-15 10/3/01 1,1,2-Trichloroethane ND ppb v/v 0.0896 USEPATO-15 10/3/01 Toluene 3.69 ppb v/v 0.0735 USEPA TO-15 10/3/01 1,2-Oibromoethane ND ppb v/v 0.0971 USEPA TO-15 10/3/01 Tetrachloroethene ND ppb v/v 0.0845 USEPA TO-15 10/3/01 Chlorobenzene ND ppb v/v 0.1343 USEPA TO-15 10/3/01 Ethylbenzene 1.37 ppb v/v 0.0744 USEPA TO-15 10/3/01

John Pedneault Page 9 of 14 ND=RESULT IS EQUAL TO OR LESS THAN MDL Lab Director NYS ELAP #10224 MWSE #46075

CITY_21MC100_0 02968639 NYC-WTC_000187589