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

NYC 9/11 Public Portal Document 6314676905 PEDNEAIXT ASSOCIATES PAGE 14 10/25/2001 16:1'4

Prepared Exclusively For: PEDNEAULTASSOCJATES, INC. NYCDEP-Emergency Responi.e & Tech Assmt. 161S WNTHAVEffUS, BOX205. BOHEMIA, N.Y. 11716 96-05 Horace Harding Expressway LAB#: 01100428 Corona NY 11368 PROJECT ID WORLD TRADE CENTER- 5 Boro Sampling {718? 595-4650 MATRIX: AIWGAS

L__---- ------ COLLECT DATE DATE RECEIVED RELEASE DATE REPORT DATE 10/22/0: 9:05 PM 10/22/01 11:50:00 PM 1'0/24/01 10/24/01 SAMPLE ORIGIN DUP/-ATLANTIC AVE. & SMITH ST,, BROOKJ.YN SAMPLE ID#: 01100428- 007 ANALYSIS DATE ) RESULT UNITS MJD.L. METHOD Dichlorodifluoromethane 0.72 ppb v/v 0.123 USEPA TO-15 10/23/01 Chloromethane 0.55 ppb v/v 0.1037 USEPA TO-15 10/23/01 1,2-Dlchlorotetrafluoroethane ND ppb v/v 0.2886 USEPA TO-15 10/23/01 Vinyl Chloride ND ppb vN 0.1249 USEPA TO-15 10/23/01 Bromomethane ND ppb v/v 0.2418 USEPA TO-15 10/23/01 Chloroethano ND ppb vN 0.2478 USEPA TO-15 10/23/01 T richlorofl jcrometharie 0.B5 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 Methyl-tert-butyl ether 1.66 ppb v/v 0.128 USEPA TO-15 10/23/01 cls-1,2-DichloroQlhsns ND ppb v/v 0,1783 USEPA TO-15 10/23/01 Chloroform ND ppb v/v 0.1681 USEPA TO-15 10/23/01 1,2-Dichloroethane ND ppb vA 0.1688 USEPA TO-15 10/23/01 1,1,1-Trichloroefhan9 ND ppb v/v 0.0974 USEPA TO-15 10/23/01 Benzene 0.82 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-Dlohloropropane ND ppb vA 0.1138 USEPA TO-15 10/23/01 Trichloroethene ND ppb v/v 0.1329 USEPA TO-15 10/23/01 cis-l ,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 10/23/01 1,1,2-Trichloroethane ND ppb v/v 0.0896 USEPA TO-15 10/23/01 Toluene 2.02 ppb v/v 0.0735 USEPA TO-15 10/23/01 1.2-Dibromoethane ND ppb v/v 0.0971 USEPA TO-15 10'23/01 Tetrachloroethene 0.19 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 0.28 ppb v/v 0.0744 USEPA TO-15 10.23/01

John Pedneault Page 13 of 16 ND=RESULT IS EQUAL TO OR LESS THAN MDL Lab Director NYS ELAP #10224 NR=NON REPORTABLE RESULTS MW0E #46075

CITY_21MC100_011107393

NYC-WTC_000182448