NYC-WTC_000210737

NYC 9/11 Public Portal Document

10/10/2001 10:33 63146/6905 PEDNEAULT ASSOCIATES PAGE 20

r Prtpared Exclusivtly Tor. PBDNEAULTASSOCIATES, INC. IglSMffTffjIVEmS. BOX205. BOHEM!A. N.Y. 11716 NYCDEP-Emergency Response & Tech Assmt. 96-05 Horace Harding Expressway lab#: 01100166 Corona NY 11368 PROJECT ID WORLD TRADE CENTER-5 Boro Sampling

(718) 595-4650 MATRIX; AIR\GAS

DATE RECEIVED RELEASE DATE REPORT DATE COLLECT DATE 10/5/01 10:10 PM 10/6/01 12:45:00 AM 10/8/01 10/8/01

SAMPLE ORIGIN ATLANTIC AVE. & SMITH ST., BROOKLYN SAMPLE ID#: 01100166-005 RESULT UNITS M.D.L. METHOD ANALYSIS DATE Dichlorodifluoromethane 0.54 ppb v/v 0.123 USEPATO-15 lO/b/01

Chloromethane 0.56 ppb v/v 0.1037 USEPA TO-15 10/6/01

1,2-DiChlorotetrafluoroethane ND ppb v/v 0.2886 USEPA TO-15 10/6/01

Vinyl Chloride ND ppb v/v 0.1249 USEPATO-15 10/6/01

Sromomethane ND ppb v/v 0.2418 USEPATO-15 10/6/01 Chloroethane ND ppb v/v 0.2478 USEPATO-15 10/6/01 T richlorofluoromethane 0.21 ppb v/v 0.1839 USEPATO-15 10/6/01 1,1-Oichloraethene ND ppb v/v 0 0799 USEPA TO.15 10/6/01 Methylene chloride ND ppb v/v 0.1909 USEPATO-15 10/6/01 Freon 113 ND ppb v/v 0.161 USEPATO-15 10/6/01 1,1-Dichloroethane NO ppb v/v 0.1390 USEPATO-15 10/6/01 Methyl-tert-birtyl ether 14,6 ppb v/v 0.120 USEPATO-15 10/6/01 cis-1,2-Dichloroethene ND ppb v/v 0.1783 USEPATO-15 10/6/01 Chloroform ND ppb v/v 0.1601 USEPATO-15 10/6/01 1.2-Dlchloroeth3ne ND ppb v/v 0.1688 USEPATO-15 10/6/01 l.l.l-Trlchloroethane ND ppb v/v 0.0974 USEPATO-15 10/6/01 Benzene 2,90 ppb v/v 0,1201 USEPA TO-15 10/6/01 Carbon Tetrachloride 0.12 ppb v/v 0.0922 USEPA TO-15 10/6/01 1,2-Dlchloropropane ND ppb v/v 0.1138 USEPATO-15 10/6/01 T richloroethene ND ppb v/v 0.1329 USEPA TO-15 10/6/01 cis-1,3-Dich!oropropene ND ppb v/v 0.0924 USEPATO-15 10/6/01 trans-l ,3-Dichloropropene ND ppb v/v 0.1222 USEPATO-15 10/6/01 1.1,2-Trichloroethane ND ppb v/v 0.0896 USEPA TO-15 10/6/01 Toluene 9,66 ppb v/v 0.0735 USEPATO-15 10/6/01 1,2-DlbromoGthane ND ppb v/v 0.0971 USEPATO-15 10/6/01 i Tstrachloroethene '0.62 ppb v/v 0.0845 USEPATO-15 10/6/0! ! Chlorobenzene ND ppb v/v 0.1343 USEPA TO-15 10/6/01 I Ethylbenzene 1.65 ppb v/v 0.0744 USEPATO-15 10/6/01

John Pednoault Page 9 of14 Lab Director ND=RESULT IS EQUAL TO OR LESS THAN MDL NYS ELAP «1O224 VWSE #46075

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