NYC-WTC_000203356

NYC 9/11 Public Portal Document

, [ Prepared PAcclusively For: PEDNEAULTASSOCIATES, INC. NYCDEP-Emcrgency Response & Tech Assmt. 1615 NINTH AVENUE. BOX 205. BOHEMIA, N.Y. 11716

96-05 Horace Harding Expressway LAB#: 01100508 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 10/28/01 4:45 PM 10/28/01 9:54:00 PM 10/30/01 10/30/01 SAMPLE ORIGIN 13Sth St. & 3rd AVENUE, BRONX SAMPLE ID//: 01100508-002 RESULT UNITS M.D.L. METHOD ANALYSIS DATE I Dichlorodifluoromethane 0.66 ppb v/v 0.123 USEPA TO-15 10/29/01 Chloromethane 0.84 ppb v/v 0.1037 USEPATO-15 10/29/01 1,2-Dichlorotetrafluorocthane ND ppb v/v 0.2886 USEPATO-15 10/29/01 Vinyl Chloride ND ppb v/v 0.1249 USEPATO-15 10/29/01 Bromomethane ND ppb v/v 0.2418 USEPA TO-15 10/29'01 Chloroethane ND ppb v/v 0.2478 USEPATO-15 10/29/01 T richlorofluoromethane 0.19 ppb v/v 0.1839 USEPATO-15 10/29/01 1.1-Dichloroethene ND ppb v/v 0.0799 USEPA TO-15 10/29/01 Methylene chloride ND ppb v/v 0.1909 USEPA TO-15 10/25/01 Freon OS ND ppb v/v 0.161 USEPATO-15 10/29/01 1,1-Dichloroethane ND ppb v/v 0.1398 USEPA TO-15 10/29/01 Methyl-lert-butyl ether 1.23 ppb v/v 0.128 USEPATO-15 10/29/01 cis-1,2-Dichloroethene ND ppb v/v 0.1783 USEPATO-15 10/29/01 Chloroform ND ppb v/v 0.1681 USEPATO-15 10/29/01 1,2-Dichloroethane ND ppb v/v 0.1688 USEPATO-15 10/29/01 1,1,1-Trichloroethane ND ppb v/v 0.0974 USEPATO-15 10/29/01 Benzene 1.58 ppb v/v 0.1201 USEPATO-15 10/29/01 Carbon Tetrachloride ND ppb v/v 0.0922 USEPATO-15 10/29/01 1,2-Dichloropropane ND ppb v/v 0.1138 USEPATO-15 10/29/01

Trichloroethene ND ppb v/v 0.1329 USEPATO-15 10/29/01 cis-1,3-Dichloropropene ND ppb v/v 0.0924 USEPATO-15 10/29/01 trans-1,3-Dichloropropene ND ppb v/v 0.1222 USEPATO-15 10/29/01 1,1,2-Trichloroethane ND ppb v/v 0.0896 USEPATO-15 10/29/01

Toluene 2.88 ppb v/v 0.0735 USEPATO-15 10/2,9/01 1,2-Dibromoethane ND ppb v/v 0.0971 USEPATO-15 10/29/01 Tetrachloroethene ND ppb v/v 0.0845 USEPATO-15 10/29/01 Chlorobenzene ND ppb v/v 0.1343 USEPA TO-15 10/29/01 Ethylbenzene 0.24 ppb v/v 0.0744 USEPATO-15 10/29/01

John Pedneault F’age 3 of 16 ND=RESULT IS EQUAL TO OR LESS THAN MDL Lab Director NYS ELAP #10224 NR=NON REPORTABLE RESULTS MWBE #46075

CITY_21MC100_003071387 NYC-WTC_000203358