NYC-WTC_000187271

NYC 9/11 Public Portal Document

10/23/2001 15:03 6314676305 PEDNEAULT ASSOCIATES PAGE 18

Prepared Excluiively For. PJEDNEAULTASSOCIATBS, INC. NYCDEP-Emergency Response & Tech Assmt. KIS NINTH AVENUE, BOX SOS, BOHEMIA. NY. II7I6

96-05 Horace Harding Expressway LAB#: 01100404 Corona NY 11368 PROJECT ID WORLD TRADE CENTER- 5 Boro Sampling (718) 595-4650 MATRIX: A1R\GAS

COLLECT DATE DATE RECEIVED RELEASE DATE REPORT DATE 10/2 I/O ( 7:40 PM 10/21/01 10:20:00 AM 10/23/01 10/23/01 SAMPLE ORIGIN ATLANTIC AVE, & SMITH ST., BROOKLYN SAMPLE ID#: 01100404-005 RESULT UNns MD.L. METHOD analysis DATE

! Dichlorodifluoromethane 1.60 ppb v/v 0.123 USEPATO-15 10/22/01 ! Chloromethane ppb v/v 0.1037 USePATO-15 1.71 10/22/01 1,2-Dichlorotetrafluoroethane ND ppb v/v 0.2886 USEPATO-15 10/22/01 Vinyl Chloride ND ppb v/v 0.1249 USEPATO-15 10/22/01 Sromomethane NO ppb v/v 0.2418 USEPATO-15 10/22/01 Chloroethane ND ppb v/v 0.2478 USEPATO-15 10/22/01 Trichlorofluoromethane 0.55 ppb v/v 0.1839 USEPATO-15 10/22/01 1,1-Dichloro ethene ND ppb v/v 0.0799 USEPATO-15 10/22/01 Methylene chloride NO ppb v/v 0.1909 USEPATO-1S 10/22/01 Freon 113 ND ppb v/v 0.161 USEPATO-15 10/22/01 1,1-Dlchloroethane NO ppb v/v 0.1398 USEPATO-15 10/22/01 ! Mothyl-tert-butyl ether 5.37 ppb v/v 0.128 USEPATO-15 10/22/01 cis-1,2-Dichloroethene ND ppb v/v 0.1783 USEPATO-15 10/22/01 ; Chloroform ND ppb v/v 0.1681 USEPATO-15 10/22/01 1,2-Dichloroefhane ND ppb v/v 0,1688 USEPATO-15 10/22/01 1,1,1 -Trichloroethane ND ppb v/v 0.0974 USEPATO-15 10/22/01 Benzene 1.68 ppb v/v 0.1201 USEPATO-15 10/22/01 Carbon Tetrachloride 0.12 ppb v/v 0.0922 USEPATO’IS 10/22/01 1,2-Dichloropropane NO ppb v/v 0.1138 USEPATO-15 10/22/01 Trlchloroethene ND ppb v/v 0.1329 USEPATO-15 10/22/01 cis-1,3-Dichloropropene ND ppb v/v 0.0924 USEPATO-15 10/22/01 trans-l .3-Olchloropropene NO ppb v/v 0.1222 USEPATO-15 10/22/01 1,l.2-Trlchloro9thane ND ppb v/v 0.0896 USEPATO-15 10/22/01 Toluene 5,29 ppb v/v 0.0735 USEPATO-1S 10/22/01 1,2-DibrQmoethane ND ppb v/v 0,0971 USEPATO-15 10/22/01 Tetrachloroethene 0,12 ppb v/v 0.0845 USEPATO-15 10/22/01 Chlorobenzene ND ppb v/v 0,1343 USEPATO-15 10/22/01 Ethylbenzene 0.87 ppb v/v 0.0744 USEPATO-15 10/22/01

John Pedneault Page 9 of 16 ND=RESULT IS EQUAL TO OR LESS THAN MDL Lab Director NYS ElAP #10224 MWBE #46075

CITY_21MC100_0 02966274

NYC-WTC_000187279