NYC-WTC_000187271

NYC 9/11 Public Portal Document

10/23/2001 15:03 6314676305 PEDI^AULT ASSOCIATES PAGE 20

Prepared Exclusively For: PEDNEAULTASSOCIATES, INC NYCDEP-Emergency Response & Tech Asstnt. 16J} 80X205. 8OMEMJA.2l.y J1716

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

COLUECTDATE DATE RECEIVED RELEASE DATE REPORT DATE 10/21/01 8:30 PM 10/21/01 10:20:00 AM 10/23/01 10/23/01 sample origin bay st & VICTORY BLVD., STATEN ISLAND SAMPLE DCW: 01100404-006 RESULT UNTTS MJ>.L- METHOD analysis date Dichlorodifluoromethane 0.66 ppb v/v 0.123 USEPA TO-15 10/22/01 Chlofomethane 0.98 ppb v/v 0.1037 USEPA TO-15 10/22/01 1,2-Dichlorotetrafluoroethano ND ppb v/v 0.2886 USEPA TO-15 10/22/01 Vinyl Chloride ND ppb v/v 0.1249 USEPA TO-15 J 0/22/01 Bromomeltiane ND ppb v/v 0.2418 USEPA TO-15 10/22/01 Chloroefhane ND ppb v/v 0.2478 USEPA TO-15 10/22/01 Trlchlorofluoromethane 0.26 ppb v/v 0.1839 USEPA TO-1S 10/22/01 1,1-Dlchloroethene ND ppb v/v 0.0799 USEPA TO-15 10/22/01 Methylene chloride NO ppb v/v 0.1909 USEPA TO-15 10/22/01 Freon 113 ND ppb v/v 0.161 USEPA TO-15 10/22/01 1,1-Dichloroethane ND ppb v/v 0.1390 USEPA TO-15 10/22/01 Methyl-tert-butyl ether 0.74 ppb v/v 0.120 USEPA TO-15 10/22/01 cis-1,2-Dlchloroethene ND ppb v/v 0.1783 USEPA TO-15 10/22/01 I Chloroform ND ppb v/v 0.1681 USEPA TO-15 10/22/01 1.2-Olchloroethane ND ppb v/v 0.1608 USEPA TO-15 10/22/01 1,1,1-Trichloroethane ND ppb v/v 0.0974 USEPA TO-15 10/22/01 I

Qenzerre 0.79 ppb v/v 0.1201 USEPATO-1S 10/22/01 Carbon Tetrachloride 0.10 ppb v/v 0.0922 USEPATO-1S 10/22/01 1,2-Dichloropropane 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 cis-1,3-Dichloropropene ND ppb v/v 0.0924 USEPA TO-15 10/22/01 — : tranS'l.a-OchlOfopropene ND ppb v/v 0.1222 USEPA TO-15 10/22/01 1,1,2-Trichloroethane NO ppb v/v 0.0896 USEPA TO-15 10/22/01 Toluene 2.24 ppb v/v 0-0735 USEPA TO-15 10/22/01 1,2-Dlbromoelhane NO ppb v/v 0.0971 USEPA TO-15 10/22/01 Tetrachloroothene NO ppb v/v 0.0845 USEPA TO-15 10/22/01 Chlorobenzene ND ppb v/v 0.1343 USEPA TO-15 10/22/01 i Ethylbenzene 0.42 ppb vN 0,0744 USEPA TO-15 10/22/01 J

John Pedneault Page 11 of 16 ND=RESULT IS EQUAL TO OR LESS THAN MPL Lab Director NYSELAP (#10224 MW6E #46075

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