Air sample lab report, Broadway and 31st St, Oct 2001

NYC 9/11 Public Portal Document PEDNEAULT ASSOCIATES PAGE 12 10/22/2001 17:08 6314676805

r ] Prepared Exclusively Ear: J>BJDN£A Ul.rASSOCL4 TES, INC. NYCDEP-Einergeni:y Response & Tech Assmt. BOX205. BOHEM/A. NX. I!?li 95-05 Horace Harding Expressway LAB#-: 01100399 Corona , W 11368 PROJECT ID WORLD TRADE CENTER- 5 Boro Sampling (71!;) 595-46:50 MATRIX; AIR\GAS

COLLECT DATE DATE RECEIVED RELEASE DATE REPORT DATE lO/19/O: 9:00 PM 10/19/01 9:50:00 PM 10/22/01 10/22/01 SAMPLE ORIGIN BAY ST & VICTORY BLVD., STATEN ISLAM) SAMPLE ID#: 01100399-006 RESULT UNITS MJD.L. METHOD ANALYSIS DATE Dichlorodifluoromethane 1.03 ppbv/v 0.123 USEPA TO-15 10/21/01 Chloromethane 1.17 ppbv/v 0,1037 USEPA TO-15 10/21/0) 1,2-OichIorotetrafluoroethane ND ppb v/v 0.2886 USEPA TO-15 10/21/01 Vinyl Chloride ND ppb v/v 0.1249 USEPA TO-15 10/21/01 Bromomethane ND ppb v/v 0.2418 USEPA TO-15 10/21/01 Chloroethane ND ppb v/v 0.2478 USEPA TO-15 10/21/01 Tri chlorofluoromethane 0.32 ppbv/v 0.1839 USEPA TO-15 10/21/01 1,1-Dichloroethene ND ppb v/v 0.0799 USEPA TO-15 10/21/01 Methylene chloride ND ppbv/v 0.1909 USEPA TO-15 10/21/01 Freon 113 ND ppb v/v 0.161 USEPA TO-15 10/21/0X 1,1-Dichloroethane ND ppb v/v 0.1398 USEPA TO-15 10/21/01 Methyl-tert-bulyl ether 3.22 ppb v/v 0.128 USEPA TO-15 10/21/01 cls-1.2-DichloroelhQne ND ppbv/v 0.1783 USEPA TO-15 10/21/01 Chloroform ND ppbv/v 0.1681 USEPA TO-15 10/21/01 1,2-Dichloroethane ND ppbv/v 0.1688 USEPA TO-15 10/21/01 1.1,1 -Trtchloroethane ND ppb v/v 0.0974 USEPA TO-15 10/21/01 Benzene 0.59 ppbv/v 0.1201 USEPA TO-15 10/21/01 Carbon Tetrachloride 0.10 ppb v/v 0.0922 USEPA TO-15 10,'21/01 1.2-DichloroprDpane ND ppb v/v 0.1138 USEPA TO-15 10,'21/01 / Trichloroethene ND ppbv/v 0.1329 USEPA TO-15 10/21/01 cis-1,3-Dichloropropene NO ppb v/v 0.0924 USEPA TO-15 10/21/01 trans-1,3-Dlchloropropene ND ppb v/v 0.1222 USEPA TO-15 10/21/01 1,1,2-Trlchloro ethane ND ppb v/v 0.0896 USEPA TO-15 10/21/01 Toluene 1.49 ppb v/v 0.0735 USEPA TO-15 10/21/01 1,2-Dibromoethane ND ppb v/v 0.0971 USEPA TO-15 10/21/01 Tetrachloroethene ND ppb v/v 0.0845 USEPA TO-15 10/21/01 Chlorobenzene ND ppbv/v 0.1343 USEPA TO-15 10/21/01 Ethylbenzene 0.25 ppb v/v 0.0744 USEPA TO-15 10/.21/0I

John Pedneault Page 11 of 16 N D=RESULT IS EQUAL TO OR LESS THAN MDL Lab Director NYS ELAP #10224 MWBE #46075

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