NYC-WTC_000210737

NYC 9/11 Public Portal Document

10/10/2001 10:33 3314fc769B5 HtDNtAULT ASSOCIATES HAGE 14

c Prepared Exclusively Por ASSOCIATES, INC 1615 NO'rrHAVENUE. BOA'205. SOHEMU. N V I17i6 (NYCDEP-Ernergency Response & Tech Assmt. 96-05 Horace Hardiiig Expressway LAB#: 01100166 Corona NY 11368 PROJECT ID WORLD TRADE CENTER-5 Boro Sampling (718)595-4650 MATRIX: AIRIGAS

COLLECT DATE date received RELEASE DATE REPORT date 10/5/01 8:20 PM 10/6/01 12:45:00 AM 10/8/01 10/8/01

SAMPLE ORIGIN 138tb St. <& 3rd AVENUE, BRONX SAMPLE ID#: 01100166-002 UNITS METHOD RESULT M.D.L, ANALYSIS DATE Dichlorodifluoromethane 0.53 ppb v/v 0.123 IJSEPATO-15 10/6/01 Chloromethane 0.57 ppb v/v 0.1037 USEPA TO-15 10/6/01 1.2-Dichlorotetrafluoroethane ND ppb v/v 0.2066 USEPATO-15 10/6/01 Vinyl Chloride ND ppb v/v 0 1249 USEPATO-15 10/6/01 Bromomethane ND ppb v/v 0.2418 USEPATO-15 10/6/01 Chloroethane NO ppb v/v 0.2478 USEPATO-15 10/6/01 T rlchlorofluoromethane 0.27 ppb v/v 0.1839 USEPATO-15 10/6/01 1,1-Dichloroethene NO ppb v/v 0.0799 USEPA TO-15 10/6/01 Methylene chloride ND ppb v/v 0.1909 USEPATO-15 10/6/01 Freon 113 ND ppb v/v 0.161 USEPATO-15 10/6/01 1,1-Dlchloroethane ND ppb v/v 0.1398 USEPATO-15 10/6/01 Methyl-tert-butyl ether 6.38 ppb v/v 0.128 USEPATO-15 10/6/01 ci3-1,2-Dichloroethene ND ppb v/v 0.1783 USEPATO-15 10/6/01 {j-------------------- Chloroform ---------------- ND ppb v/v 0.1681 USEPA TO-15 10/6/01 ! 1,2-Dichloro0thane ND ppb v/v 0.1688 USEPA TO-15 10/6/01 i 1,1.1-Thchloroethane ND ppb v/v 0,0974 USEPA TO-15 10/6/01 Benzene 1.27 ppb v/v 0.1201 USEPA TO-15 10/6/01 Cartxin Tetrachloride 0.13 ppb v/v 0.0922 USEPATO-15 10/6/01 1,2-Dlchloropropane ND ppb v/v 0.1138 USEPATO-15 10/6/01 Trichloroethene ND ppb v/v 0.1329 USEPATO-15 10/6/01 cis-1 .S-Dichloropropene ND ppb v/v 0.0924 USEPA TO-15 10/6/0! trans-1,3-Dichloropropene ND ppb v/v 0 1222 USEPATO-15 10/6/01 1,1,2-Trichioroethane ND ppb v/v 0.0896 USEPATO-15 10/6/01 Toluene 7.98 ppb v/v 0.0735 USEPA TO-15 10/6/01 1,2-Dibromoethane ND ppb v/v 0.0971 USEPATO-15 10/6/01 Telrachloroethene 0.11 ppb v/v 0.0845 USEPATO-15 10/6/01 Chlorobenzene ND ppb v/v 0.1343 USEPA TO-15 10/6/01 I Ethylbenzene 1.65 ppb v/v 0.0744 USEPA TO-15 10/6/01

John Pedneault Page 3 of 14 Lab Director NI>=RESULT IS EQUAL TO OR LESS THAN MDL NYSELAP #10224 MW9£ #46075

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