NYC-WTC_000203356

NYC 9/11 Public Portal Document

r Prepared Exclusively For: PEDNEAULTASSOCIATES, INC. NYCDEP-Emergency Response & Tech Assmt. 1615 NINTH AVENUE, ROX205. BOHEMIA, N.Y. 117/6

96-05 Horace Harding Expressway LAB#: 01100508 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 10/28/01 6:40 PM 10/28/01 9:54:00 PM 10/30/01 10/30/01

SAMPLE ORIGIN BERRY ST. & NORTH 11th ST, BROOKLYN SAMPLE ID#: 01100508-004 RESULT UNITS M.D.L. METHOD ANALYSIS DATE Dichlorodifluoromethane 0.60 ppb v/v 0.123 USEPATO-15 10/29/01 Chloromethane 2.08 ppb v/v 0.1037 USEPATO-15 10/29/01 1,2-Dichlorotetrafluoroethane ND ppb v/v 0.2886 USEPATO-15 10/29/01 Vinyl Chloride ND ppb v/v 0.1249 USEPATO-15 10/29/01 Bromomethane ND ppb v/v 0.2418 USEPA TO-15 10/29/01 Chloroethane ND ppb v/v 0.2478 USEPATO-15 10/29/01 Trichlorofluoromethane 0.20 ppb v/v 0.1839 USEPATO-15 10/29/01 1,1-Dichloroethene ND ppb v/v 0.0799 USEPATO-15 10/29/01 Methylene chloride ND ppb v/v 0.1909 USEPATO-15 10/29/01 ! Freon 113 ND ppb v/v 0.161 USEPATO-15 10/29/01 1.1-Dichloroethane ND ppb v/v 0.1398 USEPATO-15 10/29/01 Methyl-tert-butyl ether 88.6 ppb v/v 0.128 USEPATO-15 10/29/01 cis-1,2-Dichloroethene ND ppb v/v 0.1783 USEPA TO-15 10/29/01 Chloroform ND ppb v/v 0.1681 USEPATO-15 10/29/01 1,2-Dichloroethane ND ppb v/v 0.1688 USEPATO-15 10/29/01 1.1,1-Trichloroethane ND ppb v/v 0.0974 USEPATO-15 10/29/01 Benzene 5.83 ppb v/v 0.1201 USEPATO-15 10/29/01 Carbon Tetrachloride ND ppb v/v 0.0922 USEPATO-15 10/29/01 1.2-Dichloropropane ND ppb v/v 0.1138 USEPATO-15 10/29/01 Trichloroethene ND ppb v/v 0.1329 USEPATO-15 10/29/01 cis-1.3-Dichloropropene ND ppb v/v 0.0924 USEPATO-15 10/29/01 trans-1,3-Dichloropropene ND ppb v/v 0.1222 USEPATO-15 10/29/01 i 1,1,2-Trichloroethan6 ND ppb v/v 0.0896 USEPATO-15 10/29/01 j Toluene 23.4 ppb v/v 0.0735 USEPA TO-15 10/29/01 i 1,2-Dibromoefhane ND ppb v/v 0.0971 USEPATO-15 10/29/01 Tetrachloroethene ND ppb v/v 0.0845 USEPATO-15 10/29/01 Chlorobenzene ND ppb v/v 0.1343 USEPATO-15 10/29/01 Ethylbenzene 3.35 ppb v/v 0.0744 USEPA TO-15 10/29/01

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

CITY_21MC100_003071391 NYC-WTC_000203362