NYC-WTC_000187255

NYC 9/11 Public Portal Document

10/17/2001 15:15 6314676S05 PEDNEAULT ASSOCIATES PAGE 27

r Prepared Exclusively For: PJEDJ^ULT ASSOCIATES, INC. NYCDEP-Ecnergency Response & Tech Assmt. leiSffmHAi'EHUE, BOX205. BOHE^ilA. N.Y. 117/6 96-05 Horace Harding Expressway LAB#: 01100307 Corona . NY 11368 PROJECT ID WORLD TRADE CENTER- 5 Boro Sampling (718) 595-4650 MATRIX: AIR\GAS

COLLECT DATE DATE RECEIVED RELEASEDATE REPORT DATE 10/15/0: 7:15 PM 10/15/01 9:45:00 AM 10/17/01 10/17/01

SAMPLE ORIGIN BERRY & N 11th ST/DUPLICATE SAMPLE ID#: 01100307-008 RESULT UNITS M.D.L. METHOD ANALYSIS DATE Dichlorodifluoromethane 0.64 ppb v/v 0.123 USEPATO-15 10/16/01 Chloromethane 1.28 ppb v/v 0.1037 USEPATO-15 10/16/01 1,2-Dichlorotetrafluoroethane ND ppb v/v 0.2886 USEPATO-15 10/16/01 Vinyl Chloride NO ppb v/v 0.1249 USEPATO-15 10/16/01 Bromomethane ND ppb v/v 0.2418 USEPATO-15 10/16/01 Chloroethane ND ppb v/v 0.2478 USEPATO-15 10/16/01 Trichlorofluoromethane 0.32 ppb v/v 0.1839 USEPATO-15 10/16/01 l.l-Dichloroethene ND ppb v/v 0.0799 USEPATO-15 10/16/01 Wefhylene chloride ND ppb v/v 0.1909 USEPATO-15 10/16/01 Freon 113 ND ppb v/v 0.161 USEPATO-15 10/16/01 1 .l-Oichloroefhano ND ppb v/v 0.1398 USEPATO-15 10/16/01 Melhyl-tert-butyl other 0.73 ppb v/v 0.128 USEPATO-15 10/16/01 cis-1,2-Dlchloroethene ND ppb v/v 0.1783 USEPATO-15 10/16/01 Chloroform ND ppb v/v 0.1681 USEPATO-15 10/16/01 1,2-Olchloroethane ND ppb v/v 0.1688 USEPATO-15 10/16/01 1,1.1-Trichloroothane ND ppb v/v 0.0974 USEPATO-15 10/16/01 Benzene 0.51 ppb v/v 0.1201 USEPATO-15 10/16/01 Carbon Tetrachloride 0,11 ppb v/v 0.0922 USEPA TO-15 10/16/01 1.2-Dichloropropane NO ppb v/v 0.1138 USEPATO-15 10/16/01 Trichloroethene ND ppb v/v 0.1329 USEPATO-15 10/16/01 ds-l ,3-Dlchloropropsne ND ppb vlv 0.0924 USEPATO-15 10/16/01 trans-1,3-Dichloropropene ND ppb v/v 0.1222 USEPATO-15 10/16/01 1,1,2-Trichloroethane ND ppb v/v 0.0896 USEPATO-15 10/16/01 Toluene 1.47 ppb v/v 0.0735 USEPATO-15 10/16/01 1,2-Dibromoethane ND ppb v/v 0.0971 USEPATO-15 10/16/01 Tstrachloroethene ND ppb v/v 0.0645 USEPATO-15 10/16/01 Chlorobenzene ND ppb v/v 0.1343 USEPATO-15 10/16/01 Ethylbenzene 0.19 ppb v/v 0.0744 USEPATO-15 10/16/01

John Pedneaull 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_000187269