NYC-WTC_000187255

NYC 9/11 Public Portal Document

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

[ ] Prepared Exclusively Nor; PEDNEAULTASSOCIATES, INC NYCDEP-Emergency Response & Tech Assmt. 1615NINTHAyeWE, BOXW5. BOHEMIA, N.Y II7I6 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 lO/15/O: 6:15 PM 10/15/01 9:45:00 AM 10/17/01 10/17/01 SAMPLE ORIGIN CENTAL PARK N. & LENOX, MANHATTAN SAMPLE ID#: 01100307-003 RESULT UNns M.D.L. METHOP ANALYSIS PATE Dichlorodifluoromethane 1.24 ppb v/v 0.123 USEPATO-15 10/16/0) Chloro methane 1.60 ppb v/v 0.1037 USEPATO-15 10/16/01 1.2-Dichlorotetrafluoro6than0 ND ppb v/v 0.2886 USEPATO-15 10/16/01 Vinyl Chloride ND ppb v/v 0.1249 USEPATO-15 10/16/01 Bromomethane ND ppb v/v 0.2418 USEPATO-15 10/16/01 Chloroethane ND ppb v/v 0.2478 USEPATO-15 10/16/01 Trichlorofluoromethane 0.66 ppb v/v 0.1839 USEPATO-1S 10/16/01 1,1-Dlchloroethene ND ppb v/v 0.0799 USEPATO-15 10/16/01 .Methylene chloride ND ppb v/v 0.1909 USEPATO-15 10/16/0) P^reon 113 ND ppb v/v 0.161 USEPATO-15 10/16/01 1,V-Dichloroelhane ND ppb v/v 0.1398 USEPATO-15 10/16/01 Methyl-tert-butyl ether 4.71 ppb v/v 0.128 USEPATO-15 10/16/01 cis-1,2-Dichloroethene ND ppbv/v 0.1703 USEPATO-15 10/16/01 Chloroform ND ppb v/v 0.1681 USEPATO-15 10/16/01

1.2-Dlchloroethane ND ppbvAr 0.1688 USEPATO-15 10/16/01

1.1,1-Trichloroethane ND ppb v/v 0.0974 USEPATO-15 10/16/01 Benzene 1.28 ppb v/v 0.1201 USEPATO-15 10/16/01 Carbon Tetrachloride 0.11 ppb v/v 0.0922 USEPATO-15 10/16/01 1,2-Dichlorapropane ND ppb v/v 0.1138 USEPATO-15 10/16/01 Trichloroethene ND ppb v/v 0.1329 USEPATO-15 10/16/01 c!s-1,3-Oichloropropene ND ppb v/v 0.0924 USEPATO-15 10/16/01 trans-1,3-Dichloropropene ND ppb v/v 0.1222 USEPATO-15 10/16/01 1,1,2-Trichloroethane ND ppb v/v 0.0896 USEPATO-15 10/16/01 Toluene 2.91 ppb v/v 0,0735 USEPATO-15 10/16/01 1,2-Dibromoethane NO ppb v/v 0.0971 USEPATO-15 10/16/01 Tetrachloroelhene 0.23 ppb v/v 0.0845 USEPATO-15 10/16/01 Chlorobenzene ND ppb v/v 0.1343 USEPATO-15 10/16/01 Ethylbenzene 0.49 ppb v/v 0.0744 USEPATO-15 10/16/01

John Pedneault Page 5 of 16 ND-RESULT IS EQUAL TO OR LESS THAN MDL Lab Director NYS ELAP #10224 MWBE #46075

CITY_21MC100_002966118

NYC-WTC_000187259