NYC-WTC_000187271

NYC 9/11 Public Portal Document

10/23/2001 15:03 6314676905 PEDNEAULT ASSOCIATES PAGE 12

Preparnd Exclusivtiy For: PEDNEAULTASSOCIATES, LNC. NYCDEP-Emergency Response & Tech Assmt. 1615 NlNTHAt'CNUE, BOX 205. BOHBM/A. N Y. I IVe

96-05 Horace Harding Expressway LAB#: 01100404 Corona , NY H36S PROJECT ID WORLD TRADE CENTER- 5 Boro Sampling (718)595-4650 MATRIX: AIR\GAS

COLLECT DATE DATE RECEIVED RELEASE DATE RETORT DATE 10/21/01 5:15 PM 10/21/01 10:20:00 AM 10/23/01 10/23/01 SAMPLE ORIGIN 138th St. & 3rd AVENUE, BRONX SAMPLE ED#: 01100404-002 RESULT UNITS MJJ.L METHOD analysis date Dichlorodifluoromethane 0.68 ppb v/v 0.123 USEPA TO-15 10/22/01 Chloromethane 0.79 ppb v/v 0.1037 USEPA TO-15 10/22/01 ; 1.2-DichlorotetrafluQroethane ND ppb v/v 0.2886 USEPA TO-15 10/22/01 Vinyl Chloride ND ppb v/v 0.1249 USEPA TO-15 10/22/01 Bromomethane ND ppb v/v 0.2418 USEPA TO-15 10/22/01 i Chloroethane NO ppb v/v 0.2478 USEPA TO-15 10/22/01 Trichlorofluoromefhane 0.20 ppbvN 0.1839 USEPA TO-1S (0/22/01 l,l-Dich(oroothene ND ppb v/v 0.0799 USEPA TO-15 10/22/01 Methylene chloride ND ppb v/v 0.1909 USEPA TO-1S 10/22/01 Freon 113 ND ppb v/v 0.161 USEPA TO-15 10/22/01 1,1 -Oichloroethane ND ppb v/v 0.1398 USEPA TO-1S 10/22/01 Methyl-ten-butyl elher 1.59 ppb v/v 0.128 USEPA TO-15 10/22/01 I cis-1.2-Dichloroethene ND ppbvN 0.1783 USEPA TO-15 10/22/01 Chloroform ND ppb v/v 0.1681 USEPA TO-1S 10/22/01 1,2-Dlchloroethane NO ppb v/v 0.1688 USEPA TO-1S 10/22/01 1,1,1-Tnchloraethane ND ppb v/v 0.0974 USEPA TO-1S 10/22/01 Benzene 0.61 ppb v/v 0.1201 USEPA TO-15 10/22/01 Carbon Tetrachloride 0.12 ppb v/v 0.0922 USEPA TO-15 10/22/01 1,2-Dlchloropropane ND ppb v/v 0.1138 USEPA TO-15 10/22/01 Trichloroethene ND ppb v/v 0.1329 USEPA TO-15 10/22/01 cls-1,3-Dichloropropene NO ppb v/v 0.0924 USEPA TO-1S 10/22/01 trans-1,3-Dlchloropropene ND ppb v/v 0.1222 USEPA TO-15 10/22/01 1,1,2-Trichloroethane ND ppb v/v 0.0896 USEPA TO-15 10/22/01 Toluene 1.6G ppb v/v 0.0735 USEPA TO-15 10/22/01

1,2-Dlbromoothane ND ppb v/v 0.0971 USEPA TO-15 10/22/01 Tetrachloroethene ND ppb v/v 0.0845 USEPA TO-15 10/22/01 Chlorobenzene ND ppb v/v 0.1343 USEPA TO-1S 10/22/01 Ethylbenzene 0.25 ppb v/v 0.0744 USEPA TO-15 10./22/01

John Pedneault Page 3 of 16 ND=RESULT IS EQUAL TO OR LESS THAN MDL Lab Director NYS ELAP #10224 MWeE #46075

CITY_21MC100_0 02966268

NYC-WTC_000187273