NYC-WTC_000187595

NYC 9/11 Public Portal Document

10/10/2001 10:46 6314676905 PEDNEAULT ASSOCIATES PAGE 20

[ PreparedESzclusively For: PEDNjEAVLTASSOCIATES, INC NYCDEP-Emergeiicy Re sponse & Tech Assmt. ISIS NfNmAyMM/R SOX2DS, BOHEMIA, Hr. II7I6 96-05 Horace Hiircling Expressway LAB#: 01100168 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 10/7/01 9:25 PM 10/8/01 12:25:00 AM 10/9/01 10/9/01 SAMPLE ORIGIN ATLANTIC AVE. & SMITH ST., BROOKLYN SAMPLE nw/: 01100168-005 RESULT UNITS M.D.L. METHOD ANALYSIS DATE Dichlorodifluoromethane 0.65 ppb v/v 0.123 USEPATO-15 10/8/01 Chloromethaoe 1,01 ppb v/u 0.1037 USEPA TO-15 10/8/01 1,2-Dichlorotetrafluoroatt'ane ND ppb v/v 0.2886 USEPATO-15 10/8/01 Vinyl Chloride ND ppb v/v 0.1249 USEPA TO-15 10/8/01 Bromomethane ND ppb v/v 0.2418 USEPATO-15 10/8/01 Chloroethane ND ppb v/v 0.2478 USEPA TO-15 10/8/01 Trichlorofluoromethane 0.26 ppb v/v 0.1839 USEPA TO-15 10/8/01 J 1,1-Dlchloroefhene ND ppb v/v 0.0799 USEPA TO-15 10/8/01 Methylene chloride ND ppb \fl\/ 0.1909 USEPA TO-15 10/8/01 Freon 113 ND ppb 't/N 0.161 USEPATO-15 10/8/01 1,1-Dichloroethane ND ppb v/v 0.1398 USEPATO-15 10/8/01 Methyl-tert-butyl ether 5.05 ppb v/v 0.128 USEPATO-15 10/8/01 cis-1,2-Dichloroethene ND ppb v/v 0.1763 USEPA TO-15 10/8/01 Chloroform ND ppb v/v 0.1681 USEPA TO-15 10/8/01 1,2-Dichloroethane ND ppb v/v 0,1688 USEPA TO-15 10/8/01 1,1,1-TrlchIoroethane ND ppb v/v 0.0974 USEPATO-15 10/8/01 Benzene 1,39 ppb v/v 0.1201 USEPATO-15 10/8/01 Carbon Tetrachloride 0.12 ppb v/v 0.0922 USEPATO-15 10/8/01 1,2-Dichloropropane ND ppb v/v 0.1138 USEPA TO-15 10/8/01 Trichloroethene ND ppb v/v 0.1329 USEPATO-15 10/8/01 cis-1,3-Dlchloropropene ND ppb v/v 0.0924 USEPA TO-15 10/8/01 trans-1,3-Dichloropropene ND ppb v/v 0.1222 USEPATO-15 10/8/01 1,1,2-Trich(oroethane ND ppb v/v 0.0896 USEPATO-15 10/8/01 Toluene 4,75 ppb v/v 0.0735 USEPA TO-15 10/8/01 1,2-Dibromoethane ND ppb v/v 0.0971 USEPATO-15 10/8/01 Tetrachloroethene ND ppb v/v 0.0845 USEPATO-15 lO/S/01 Chlorobenzene ND ppb v/v 0.1343 USEPATO-15 10/8/01 Ethylbenzene 1.14 . ppb v/v 0.0744 USEPA TO-15 10/8/01

John Pedneault Page 9 of 14 NI>=RESULT IS EQUAL TO OR LESS THAN MDL Lab Director NYSELAP #10224 WWBE <#16075

CITY_21MC100_002968759

NYC-WTC_000187603