NYC-WTC_000187255

NYC 9/11 Public Portal Document

10/17/,2001 15:15 6314676905 PEDNEAULT ASSOCIATES PAGE 21

r Prepared Exclusively Por: □ PEDNEAULTASSOCIATES, INC. NYCDEP-Emergency Response & Tech Assmt. I6IS NWTHAVENUE. BOX205, BOHEMIA. N.Y. 1I7I6 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 RELEASE DATE REPORT DATE 10/15/0; 8:15 PM 10/15/01 9:45:00 AM 10/17/01 10/17/01 SAMPLE ORIGIN ATLANTIC AVE. & SMITH ST., BROOKLYN SAMPLE ID#: 01100307-005 RESULT UNITS M.D.L. METHOD ANALYSIS DATE Dichlorodifluoromethane 0.77 ppb v/v 0.123 USEPA TO-15 10/16/01 Ohio no methane 0.64 ppb v/v 0.1037 USEPA TO-15 10/16/01 1,2-Dichlorotetrafluoroethane ND ppb v/v 0.2836 USEPA TO-15 10/16/01 Vinyl Chloride ND ppb v/v 0.1249 USEPA TO-15 10/16/01 Bromomethane ND ppb v/v 0.2418 USEPA TO-15 10/16/01 Chloroethane ND ppb v/v 0.2478 USEPA TO-15 10/16/01 Trlchlorofluoromethane 0.34 ppb v/v 0.1839 USEPA TO-15. 10/16/01 1,1-Dlchloroethene ND ppb v/v 0.0799 USEPA TO-15 10/16/01 Methylene chloride ND ppb v/v 0.1909 USEPATO-16 10/16/01 Freon 113 ND ppb y/fv 0.161 USEPA TO-15 10/16/01 1,1-Dichloroethane ND ppb v/v 0.1398 USEPA TO-15 10/16/01 Methyi-tert-butyl other 11.0 ppb v/v 0.120 USEPA TO-15 10/16/01 cls-l.2-Dlohloroethene ND ppb v/v . 0.1783 USEPA TO-15 10/16/01 Chloroform ND ppb v/v 0.1681 USEPA TO-15 10/16/01 1,2-Dichloroethane ND ppb v/v 0.1688 USEPA TO-15 10/16/01 1,1,1-Trlohloroethane ND ppb v/v 0.0974 USEPA TO-15 10/16/01 Benzene 2.50 ppb V/V 0.1201 USEPA TO-15 10/16/01 Carbon Ietrachloride 0.13 ppb v/v 0.0922 USEPA TO-15 10/16/01 . 1,2-Dlchloropropane ND ppb v/v 0.1136 USEPA TO-15 10/16/01 Trichloraethene ND ppb v/v 0.1329 USEPA TO-15 10/16/01 cis-1.3-DIchloropropene ND ppb v/v 0.0924 USEPA TO-15 10/16/01 trans-1,3-Dlchloropropene ND ppb v/v 0.1222 USEPA TO-15 10/16/01 1,1,2-Trichlorosthane ND ppb v/v 0.0896 USEPA TO-15 10/16/01 Toluene 8.35 ppb v/v 0.0735 USEPA TO-15 10/16/01 1,2-Dlbromoefhane ND ppb v/v 0.0971 USEPA TO-15 10/16/01 Tetrachloroothene 0.10 ppb v/v 0.0845 USEPA TO-15 10/16/01 Chlorobenzene NO ppb v/v 0.1343 USEPA TO-15 10/16/01 Ethylbenzene 1.35 ppb v/v 0.0744 USEPA TO-15 10/16/01

John Pedneault Pago 9 of 16 ND=RESULT IS EQUAL TO OR LESS THAN MDL Lab Director NYS ELAP #10224 MWBE #46075

CITY_21MC100_0 02966122

NYC-WTC_000187263