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

NYC 9/11 Public Portal Document lB/25/2001 16:14 6314676805 PEDNEAULT ASSOCIATES PASE 08

f Preparea Exclusively For: ] PBDNEAULTASSOCIATES, INC. NYCDEP-Lmergenty Response & Tech Assrat. leiSlfmTHAyEmE. BOX205, bohemia, H.y. 11716 96-05 Horace Harding Expressway LAB#: 01100428 Corona , NY 11368 PROJECT U) WORLD TRADE CENTER- 5 Boro Sampling (718) 595-4650 MATRIX: AIR\GAS

----------- HCOLLECT Date DATE RECEIVED RELEASE date REPORT date lO/22/O: 8:25 PM 10/22/01 11:50:00 PM 10/24/01 10/24/01 SAMPLE ORIGIN BERRY ST. & NORTH 11 th ST, BROOKLYN SAMPLE BO#: 01100428 -004 RESULT UNITS M,D.L METHOD analysis date Dichlorodifluoromethiane 0.48 ppb vlv 0.123 USEPATO-15 10/23/01 Chloromethane 0.54 ppb v/v 0.1037 USEPA TO-15 lC/23/01 1,2-Dichlorotetrafluoroethan0 ND ppb v/v 0.2886 USEPATO-15 10/23/01 Vinyl Chloride ND ppb v/v 0.1249 USEPATO-15 10/23/01 Bromomethane ND ppb v/v 0.2418 USEPATO-15 10/23/01 Chloroethane ND ppb v/v 0.2478 USEPATO-15 10/23/01 T richlorotluoromethane 0,30 ppb v/v 0.1839 USEPATO-15 10/23/01 1.1-Dichloroethene ND ppb vA/ 0.0799 USEPATO-15 10/23/01 Methylene chloride ND ppb v/v 0.1909 USEPA TO-15 10/23/01 Freon 113 ND ppb v/v 0.161 USEPATO-15 10/23/01 IJ-Dlchloroethane ND ppb v/v 0.1398 USEPA TO-15 10'23/01 Methyl-tert-butyl ether 1.87 ppb v/v 0.128 USEPA TO-15 10'23/01 cis-l ,2-Dichloroethene ND ppb v/v 0.1783 USEPA TO-15 10'23/01 Chloroform ND ppb v/v 0.1681 USEPA TO-15 10'23/01 1,2-Dichloroathane ND ppb v/v 0,1688 USEPA TO-15 10/23/01 1,1,1-Trichloroethane ND ppb v/v 0.0974 USEPA TO-15 10,23/01 Benzene 0.66 ppb v/v 0.1201 USEPA TO-15 10,23/01 Carbon Tetrachloride 0.10 ppb v/v 0.0922 USEPATO-15 10,23/01 1,2-Dlchloropropane ND ppb v/v 0.1138 USEPATO-15 10/23/01 Trichloroethene 0.25 ppb v/v 0.1329 USEPATO-15 10/23/01 cis-1,3-Dichloropropene ND ppb v/v 0.0924 USEPATO-15 10/23/01 trans-1,3-DlchlQropropen9 ND ppb v/v 0.1222 USEPATO-15 10/23/01 1,1,2-Trichloroethane ND ppb v/v 0.0896 USEPATO-15 10/23/01 Toluene 2 73 ppb v/v 0.0735 USEPATO-15 10/23/01 : 1,2-Dibromoethane ND ppb v/v 0,0971 USEPATO-15 10/23/01 Tetrachloroethene 0.18 ppb v/v 0.0845 USEPATO-15 10/23/01 Chlorobenzene ND ppb v/v 0.1343 USEPATO-15 10/23/01 Ethylbenzene 0.52 ppb v/v 0.0744 USEPATO-15 10/23/01

John Pedneault F’age 7 of 16 ND=RESULT IS EQUAL TO OR LESS THAN MDL Lab Director NYS ELAP #10224 NR=NON REPORTABLE RESULTS MWBE #46075

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