NYC-WTC_000187612

NYC 9/11 Public Portal Document

10/17/2001 10150 6314676905 PEDNEAULT ASSOCIATES PAGE 16

r~ I PEDNEAULT ASSOCIATES, INC. Pnpared Excli lively For: NYCDEP-Emergency Response & Tech Assmt. lilSNJNTHAVENUE, BOX205. BOHEMIA. H-Y. II7I6

96-05 Horace Harding Expressway LAB#: 01100280 Corona , NY 11368 PROJECT ID WORLD TRADE CENTER-5 Boro Sampling (718) 595-4650 MATRIX; AIRIGAS

COLLECT date DATE RECEIVED RELEASE DATE REPORT DATE 10/13/0; 6:50 PM 10/13/01 11:40:00 PM 10/16/01 10/16/01 SAMPLE ORIGIN DUP/138th St. & 3rd AVENUE, BRONX SAMPLE ID#: 0110C280-008 UNITS METHOD analysis DATE RESULT M.D.L. Dichlorodifluoromethane 0.69 ppb yN 0.123 USEPA TO-15 10/14/01 Chloromethane 0.66 ppb v/v 0.1037 USEPA TO-15 10/14/01 1,2-Dichlorotetrafluoro9tliane ND ppb v/v 0.2886 USEPA TO-15 10/14/01 Vinyl Chloride ND ppb v/v 0.1249 USEPA TO-15 10/14/01 Bromomethane ND ppb v/v 0.2418 USEPA TO-15 10/14/01 Chloroethane ND ppb v/v 0.2478 USEPA TO-15 10/14/01 T rlchlorofluoromethane 0.44 ppb v/v 0.1839 USEPA TO-15 10/14/01 1,1-Dlchloro9thene ND ppb v/v 0.0799 USEPA TO-15 10/14/01 Methylene chloride ND ppb v/v 0,1909 USEPA TO-15 10/14/01 Freon 113 ND ppb yly 0.161 USEPA TO-15 10/14/01 1,1-Dichloroethane ND ppb v/v 0.1398 USEPA TO-15 10/14/01 Melhyl-tert-butyl ether 3.36 ppb v/v 0.128 USEPA TO-15 10/14/01 cis-1.2-Dichloroethen0 ND ppb v/v 0.1783 USEPA TO-15 10/14/01 Chloroform ND ppb v/v 0.1681 USEPA TO-15 10/14/01 1,2-Dichloroethane ND ppb v/v 0.1688 USEPA TO-15 10/14/01 1,1,1-Trichloroethane ND ppb v/v 0.0974 USEPA TO-15 10/14/01 Benzene 1.34 ppb v/v 0.1201 USEPA TO-15 10/14/01 Carbon Tetrachloride 0.10 ppb v/v 0.0922 USEPA TO-15 10/14/01 1,2-Dichloropropane ND ppb v/v 0.1130 USEPA TO-15 10/14/01 Trichloroethene ND ppb v/v 0.1329 USEPA TO-15 10/14/01 cis-1,3-Dlchloroprop0no ND ppb v/v 0.0924 USEPA TO-15 10/14/01 trans-1,3-Dichloroprcipene ND ppb v/v 0.1222 USEPA TO-15 10/14/01 1,1.2-Trichloroethan0 ND ppb v/v 0.0896 USEPA TO-15 I0/I4/0I Toluene 3.61 ppb v/v 0.0735 USEPA TO-15 10/14/01 1,2-Dlbromoethane ND ppb v/v 0.0971 USEPA TO-15 10/14/01 Tetrachloroethene 0.19 ppb v/v 0.0845 USEPA TO-15 10/14/01 Chlorobenzene ND ppb v/v 0.1343 USEPA TO-15 10/14/01 Ethylbenzene 0.51 ppb v/v 0.0744 USEPA TO-15 10/14/01

John Pedneault Page 15 of 16 ND=RESULT IS EQUAL TO OR LESS THAN MDL Lab Director NYS ELAP #10224 MWBE #46075

CITY_21MC100_002968893

NYC-WTC_000187626