NYC-WTC_000196328

NYC 9/11 Public Portal Document

Hilhnann Environmental Group SampSng Data One World Financial Center Brookfield Financial Properties

1 WORLD FINANCIAL CENTER Sample Information AirSmplinq D Jst Lead mercury Location or Compass Sample TEMAir TEM Air TEM Bulk ASTM 5756 ASTM 5755 Lead Date Sample Number Floor Surface/Component PCM (fb/cc) PLM (%) Point Count Lead pg/Ft^ rog/m’ Point Volume (struc/cc) (struo/mm) (%} (% weight) (struc/cm’) mg/kgeppm 10/04/01 10/10/01 BS10/04/01-10 K46685 26 26 NW Flowaisfer- Comer 1200 <0.002 Ym N/A

10/10/01 K46686 26 Comer 1200 <0.002 10/10/01 K46687 26 NE Comer 1200 <0.002 10/10/01 K46688 26 SE Comer 1200 <0.002 10/10/01 K46689 26 C Center 1200 <0.002 11/07/01 LB11A)7/D1 10 26. NE ______ 26ttNE______ 720 <0.0053 112. 01/11/02 14:07 26 NE Comer 000 01/11/02 14:09 26 SW Comer 000 01/14/02 LF1/14A)2-01 26 NE FAT Office Area 1200 <0.0046 01/14/02 LF1/14/D2-Q2 26 FAT Office Area 1200 <0.0046 01/14/02 LF1/14/02-03 2L FAT Elevator Hall 1200 <0.0046 01/14/02 LF1/14/02-04 26 SW FAT Cttjide Aisle 1200 <0.0046 4.3 01/14/02 LF1/14/02-05 26 NW FAT Asle 1200 <0.0046 FAT Wing 01/14/02 LF1/14/O2-06 26 N Center Aisle 1200 <0.0046 <14.3

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(= □J “0 CA = Chrysotile Asbestos DC = During Cleaning I IWA = inside Work Area o NVA= No Visible Asbestos o NAD/NA = No Asbestos Detected AQ= Air Quality o FAT = Final Air Test OWA = Outside Work Area 01/11/02 o o GO CO CO

NYC-WTC_000196386