NYC-WTC_000187239

NYC 9/11 Public Portal Document 10/16/2001 14:48 6314676905 rLUNtHUL. I X A1 rKtcic, XD

Prepart J Exclusively For: pedneaultASSOCIATES, INC. NYCDEP-Ernergency Response & Tech Assmt /6>S BOX20S. BCffEML DW 96-05 Horace Harding Expressway LAB#: 01100281 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 10/14/0’ 6:20 PM 10/14/01 9:45:00 PM 10/16/01 10/16/01 SAMPLE ORIGIN CENTAL PARK N. & LENOX, MANHATTAN SAMPLE nW: 01100281 -008 result UNITS M.D.L METHOD ANALYSIS DATE Dichlorodrfluoromethane 1.35 ppb v/v 0.123 USEPA TO-15 10/15/01 Chloromethane 1.78 ppb v/v 0.1037 USEPA TO-15 10/15/01 1.2-Dlchlorotetrafluoroethane ND ppb v/v 0.2886 USEPA TO-15 10/15/01 Vinyl Chloride ND ppbv/v 0.1249 USEPA TO-15 10/15/01 Bromomathane ND ppbv/v 0.2418 USEPA TO-1S 10/15/01 Chloroethane ND ppb v/v 0.2478 USEPA TO-15 10/15/0) Tridilorofluoromethane 0.63 ppbv/v 0.1839 USEPA TO-15 10/15/01 1,1-Otch(oroe<hone ND ppb v/v 0.0799 USEPA TO-15 10/15/01 Melhylene chloride ND ppbv/v 0.1909 USEPA TO-15 10/15/01 Freon 113 ND ppb v/v 0.161 USEPA TO-15 10/15/01 1,1-Oichloroethane ND ppbv/v 0.1398 USEPA TO-15 10/15/01 Melhyl-tert-bulyl ether ND ppb v/v 0.128 USEPA TO-15 10/15/01 cis-1,2-Olchloroethene NO ppbv/v 0.1783 USEPA TO-15 10/15/01 Chbrofbrm ND ppbv/v 0.1681 USEPA TO-15 10/15/01 1,2-Dichloroethane ND ppbv/v 0.1688 USEPA TO-15 10/15/01 1,1,1-TrichlorQethane 0.25 ppb v/v 0.0974 USEPA TO-15 10/15/01 Benzene 1.52 ppbv/v 0.1201 USEPA TO-15 10/15/0) Carton Tetrachloride 0.11 ppb v/v 0.0922 USEPA TO-15 10/15/01

1.2-Oichloropropane ND ppb v/v 0.1138 USEPA TO-15 10/15/01 Trtchloroethene ND ppb v/v 0.1329 USEPATO-1S 10/15/01 cis-1,3-Dichloro propene ND ppb v/v 0,0924 USEPA TO-15 10/15/01 trans-1,3-Dichloroprapene ND ppbv/v 0.1222 USEPA TO-15 10/15/01 1.1.2-Trichloroethanc ND ppb v/v 0.0896 USEPA TO-15 10/15/01 Toluene 3.67 ppb v/v 0.0735 USEPA TO-15 10/15/01 1,2-Dibromoethane ND ppbv/v 0.0971 USEPA TO-15 10/15/01 Tetrachloroethene ND ppb v/v 0.0845 USEPA TO-15 10/15/01 Chlorobenzene ND ppb v/v 0.1343 USEPA TO-15 10/15/01 Ethylbenzene 0.81 ppb v/v 0.0744 USEPA TO-15 10/15/01

John Pedneault Page 15 o116 ND=RESULT IS EQUAL TO OR LESS THAN MDL Lab Director NYS ELAP #10224 MWBE #46075

CITY_21MC1OO_OO29661OO NYC-WTC_000187253