Air sample lab report, Broadway and 31st St, Oct 2001

NYC 9/11 Public Portal Document

10/25/2001 18:14 6214876905 PEDNEAULT ASSOCIATES PAGE 10

f 1 Prepared Exclusive,'y Fer: jPEDNBAULTASSOCIATES, INC NYCDEP-Emergency Response & Tech Assmt. BOX20S, BOffEMlA. KY 1/716

96-05 Horace Harding Expressway LAB#: 01100428 Corona NY 11368 PROJECT ID WORLD TRADE CENTER- 5 Boro Sampling (718) 595-4650 MATRIX: AIRVGAS

COLLECT DATE DATE RECEIVED RELEASE DATE REPORT date 10/22/0'. 9'.05 PM 10/22/01 11:50:00 PM 10/24/01 10/24/01 SAMPLE ORIGIN ATLANTIC AVE. & SMITH ST., BROOKLYN SAMPLE Ute: 01100428-0G5 RESULT UNITS M.D.L. METHOD ANALYSIS DATE DichlorodIfluoromethEine 1.04 ppb v/v 0.123 USEPA TO-15 10/23/01 Chloromethane 0.47 ppb v/v 0.1037 USEPA TO-15 10/23/01 1,2-Dichlorotetrafluoroethane ND ppb v/v 0.2BS6 USEPA TO-15 10/23/01 Vinyl Chloride ND ppb v/v 0.1249 USEPA TO-15 lo-ia/oi Bromomathane ND ppb v/v 0.2418 USEPA TO-15 10-23/01 Chloroethane ND ppb v/v 0.2478 USEPA TO-15 10/23/01 Tri chlorofluoromethane 1.55 ppb v/v 0.1839 USEPA TO-15 10/23/01 1,1-Dichloroethene ND ppb v/v 0.0799 USEPA TO-15 10/23/01 Methylene chloride ND ppb v/v 0.1909 USEPA TO-15 10/23/01 Freon 113 ND ppb v/v 0.161 USEPA TO-15 10/23/01 1,1-Dichloroethane ND ppb v/v 0.1398 USEPA TO-15 10/23/01 Mothyl-tert-butyl ether 1.87 ppb v/v 0.128 USEPA TO-15 10/23/01 cis-1,2-Dichloroethene ND ppb v/v 0.1783 USEPA TO-15 10/23/01 Chloroform ND ppb v/v 0.1681 USEPA TO-15 10/123/01 1,2-Dichloroefhane ND ppb v/v 0.1688 USEPA TO-15 10/23/01 1,1,1-Trichloroethane ND ppb v/v 0.0974 USEPA TO-15 10/23/01 Benzene 1.03 ppb v/v 0.1201 USEPA TO-15 10/23/01 Carbon Tetrachloride 0.10 ppb v/v 0.0922 USEPA TO-15 10/23/01 1,2-Dichloropropane ND ppb v/v 0.1138 USEPA TO-15 10/23/01 Trichloroethene ND ppb v/v 0.1329 USEPA TO-15 10/23/01 cls-1,3-Dichloropropene ND ppb v/v 0.0924 USEPA TO-15 10/23/01 trans-1,3-Dichloropropene ND ppb v/v 0.1222 USEPA TO-15 10/2,3/01 1,1,2-Trlchloroethan0 ND ppb v/v 0.0896 USEPA TO-15 10/23/01 Toluene 2.27 ppb v/v 0.0735 USEPA TO-15 10/23/01 1,2-Dlbromoethane ND ppb v/v 0.0971 USEPA TO-15 10/23/01 Tetrachioroethene 0.17 ppb v/v 0.0845 USEPA TO-15 10/23/01 Chlorobenzene ND ppb v/v 0.1343 USEPA TO-15 10/23/01 Ethylbenzene 0.33 ppb v/v 0.0744 USEPA TO-15 10/23/01

John Pedneault Page 9 of 16 N1>=RESULT IS EQUAL TO OR LESS THAN MDL Lab Director NYS ELAP #10224 NR=NON REPORTABLE RESULTS MVrBE #46075

CITY_21MC1OO_O111O7389

NYC-WTC_000182444