NYC-WTC_000187595

NYC 9/11 Public Portal Document

10/10/2001 10:4B 631467b905 PEDNEAULT ASSOCIATES PAGE 14

Prepared Excl ujively Por: PEDNEAULTASSOCIATES, INC. NYCDEP-Einergency Response & Tech Assmt. I6IS NINTH AVENUE. BOX 20i. BOHEMIA. H.Y. II7I6 96-05 Horace Harcing Expressway LAB#: 01100168 Corona NY 11368 PROJECT ID WORLD TRADE CENTER-5 Boro Sampling (718)595-4650 MATRIX: A!R\GAS

— COLLECT DATE DATE RECEIVED RELEASE DATE REPORT DATE 10/7/01 7:10 PM 10/8/01 12:25:00 AM 10/9/0) 10/9/01

SAMPLE ORIGIN 13 8th St. & 3rd AVENUE, BRONX SAMPLE ID#: 01100168-002 RESULT UNITS M.D.L. METHOD ANALYSIS Date

Dlchlorodifluoro mathan e 0.47 ppb v/w 0.123 USEPA TO-15 10/8/01 Chloromethane 0.52 ppb v/v 0.1037 USEPA TO-15 10/8/01 1,2-Dichlorotetrafluoroethane ND ppb v/v 0,2886 USEPA TO-15 10/8/01 Vinyl Chloride ND ppb v/v 0.1249 USEPA 70-15 10/8/01 Bromomethan© ND ppb v/v 0.2418 USEPA TO-15 10/8/01 Chloroethane ND ppb v/v 0.2478 USEPA TO-15 10/8/01 Trichlorafluoromethane 0.26 ppb v/v 0.1839 USEPA TO-15 10/8/01 ; 1,1-Dichloroethene ND ppb v/v 0.0799 USEPA TO-15 10/8/01 Methylene chloride ND ppb v/v 0.1909 USEPA TO-15 10/8/01

Freon 113 ND ppb v/v 0.161 USEPA TO-15 10/8/01 1,1-DichIoroethanG ND ppb v/v 0.1399 USEPA TO-15 10/8/01 Methyl-tert-butyl ether 3.32 ppb v/v 0.128 USEPA TO-15 10/8/01

cls-1,2-Dlchloroethene ND ppb v/v 0.1783 USEPA TO-15 10/8/01 Chloroform ND ppb v/v 0.1601 USEPA TO-15 10/8/01 1,2-Dichloroathane ND ppb v/v 0.1608 USEPA TO.15 10/8/01

1,1,1-Trlchloroethane ND ppb v/v 0.0974 USEPA TO-15 10/8/01 Benzene 0.65 ppb v/v 0.1201 USEPA TO-15 10/8/01 Carbon Tetrachloride 0.13 ppb v/v 0.0922 USEPA TO-15 10/8/01

1,2-Dichloropropane ND ppb v/v 0.1138 USEPA TO-15 10/8/01

Tri chloroethene ND ppb v/v 0.1329 USEPA TO-IS 10/8/01 cis-1,3-D!chloropropene ND ppb v/v 0.0924 USEPA TO-15 10/8/0)

trans-1,3-Dichloropropen2 ND ppb v/v 0.1222 USEPA TO-15 10/8/01

1,1,2-Trichloroethane ND ppb v/v 0.0896 USEPA TO-15 10/8/01

Toluene 3.47 ppb v/v 0.0735 USEPA TO-15 10/8/01

1,2-Dibromoethane ND ppb v/v 0.0971 USEPA TO-15 10/8/01

Tetrachloraethene ND ppb v/v 0.0045 USEPA TO-15 10/8/01

Chlorobenzene ND ppb v/v 0.1343 USEPA TO-15 10/8/01

Ethylbenzene 0.48 ppb v/v 0.0744 USEPA TO-15 10/8/01

John Pedneault Page 3 of 14 NI>=RESULT IS EQUAL TO OR LESS THAN MDL Lab Director NYS ELAP #10224 MWSE #46075

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NYC-WTC_000187597