NYC-WTC_000187595

NYC 9/11 Public Portal Document

10/10/2001 10:46 6314676505 PEDNEAULT ASSOCIATES PAGE 22

□ Pnpared Exclusbefy Eor: PEDNEAULTASSOCIATES, INC. NYCDEP-Emergency Response & Tech Assmt. I( 1AVENUE. SOX 205, BOHEMIA, N.Y. I UIS

96-05 Horace Harding Expressway LAB#: 01100168 Corona NY 11368 PROJECT IB WORLD TRADE CENTER-5 Boro Sampling (718) 5S5-4650 MATRIX: AIR\GAS

COLLECT DATE DATE RECEIVED RELEASE DATE REPORT DATE 10/7/01 10:15 PM 10/8/01 12:25:00 AM 10/9/01 10/9/01 SAMPLE ORIGIN RAY ST VICTORY BLVD., STATEN ISLAND SAMPLE IDS: 01100168-006 RESULT UNITS M.D.L. METHOD ANALYSIS DATE Dichlorodifluoromethane 0.41 ppb v/v 0.123 USEPA TO-15 10/8/01 Chloromethane 0.50 ppb v/v 0.1037 USEPA TO-15 10/8/01 1,2-Dichlorotetrafluoroefliane ND ppb v/v 0.2986 USEPA TO-15 10/8/01 Vinyl Chloride ND ppb v/v 0.1249 USEPA TO-15 10/8/01 Bromomettiane 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 Trlchlorofluoromethane 0.20 ppb v/v 0.1639 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-Dichloroethane ND ppb v/v 0.1398 USEPA TO-15 lO/S/01 Methyl-tert-bdtyl ether 1.S9 ppb v/v 0.128 USEPA TO-15 10/8/01 cis-1,2-Dlohloroethene ND ppb v/v 0.1783 USEPA TO-15 10/8/01 Chloroform ND ppb ylv 0.1681 USEPA TO-15 10/8/01 1,2-Dlchloro ethane ND ppb viv 0.1688 USEPA TO-IS 10/8/01 1,1,1-Trichloroethane ND ppb v/v 0.0974 USEPA TO-15 10/8/01 Benzene 0.92 ppb v/v 0.1201 USEPATO.15 10/8/01 Carbon Tetrachloride 0.12 ppb v/v 00922 USEPA TO-15 . 10/8/01 1,2-Dichloropropane ND ppb v/v 0.1138 USEPA TO-15 10/8/01 Trichloro ethene ND ppb v/v 0.1329 USEPA TO-15 10/8/01 cis-1,3-Dichloroproperie ND ppb v/v 0.0924 USEPA TO-15 10/8/01 trans-1,3-Dlchloropropene 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 3.79 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 Tetrachloroethene ND ppb v/v 0.0645 USEPA TO-15 10/8/01 Chlorobenzene ND ppb v/v 0.1343 USEPA TO-15 10/8/01 Ethylbenzene 0.65 ppb v/v 0.0744 USEPA TO-15 10/8/01

John Pedneault Pago 11 of 14 ND=RESULT IS EQUAL TO OR LESS THAN MDL Lab Director NYS ELAP #10224 MW0E #<16075

CITY_21MC100_002968761

NYC-WTC_000187605