NYC-WTC_000231733

NYC 9/11 Public Portal Document

NYC Response Asbestos Air Sampling Results for Staten island Landfiii Sampling Date and Time 2/24'20020725 to 2058 Data Validation Date; 02/27'2002

PCM by NiOSH 7400 ___________ TEM ( AHERA) Sampling Sampling Sample Structures (#) Date Sample No. Location Volume* Matrix f/mm^ f/cc O.Sp - 5p 5!^ S/mm" S~f/CC‘* 02/24/02 LF03044 P-f 1262.80 Air 8.92 0.003 0 0 <15.75 <0.0048 02/24/02 LF03045 P-2 1382.00 Air <7.0 <0.002 0 0 <15.75 <0.0044 02/23/02 LF03046 P-3 1056.00 Air <7.0 <0.003 0 0 <13.12 <0.0048 02/24/02 LF03047 ’-3 Duplicate 1024.10 Air <7.0 <0.003 0 0 <13.12 <0.0049 02/24/02 LF03048 P-4 1327.95 Air 10.19 0.003 0 0 <15.75 <0.0046 02/24/02 LF03049 P-5 1218.00 Air <7.0 <0.002 0 0 <15.75 <0.0050 02/24/02 LF03050 P-6 1218.00 Air <7.0 <0.002 0 0 <15.75 <0.0050 02/24/02 LF03051 P-7 1260.00 Air <7.0 <0.002 0 0 <15.75 <0.0048 02/24/02 LF03052 P-8 1154.40 Air <7.0 <0.002 0 0 <13.12 <0.0044 02/24/02 LF03053 W-fl 1104.95 Air 26.75 0.009 0 0 <15.75 <0.0055 02/24/02 LF03054 W-12A 1303.80 Air <7.0 <0.002 0 0 <15.75 <0.0047 02/24/02 LF03055 W-12B 1098.80 Air 138.85 0.049 0 0 <13.12 <0.0046 02/24/02 LF03056 B-13 1400.15 Air 7.64 0.002 0 0 <15.75 <0.0043 02/24/02 LF03057 B-14 1320.00 Air <7.0 <0.002 0 0 <15.75 <0.0046 02/24/02 LF03058 T-15 1296.00 Air 11.46 0.003 0 0 <15.75 <0.0047 02/24/02 LF03059 T-16 895.85 Air 8.92 0.004 0 0 <11.25 <0.0048 02/24/02 LF03060 0-17 0.00 Air R R R R R R 02/24/02 LF03061 0-18 732.00 Air <7.0 <0.004 0 0 <8.75 <0.0046 02/24/02 LF03062 0-19 1204.00 Air <7.0 <0.002 0 0 <13.12 <0.0042 02/24/02 LF03063 MPHS-20 1240.00 Air <7.0 <0.002 0 0 <15.75 <0.0049 02/24/02 LF03064 Lot Blank 0.00 Air <7.0 n/a NA<^> NA(=^> NA<=^> NA<=^> 02/24/02 LF03065 Trip Blank 0.00 Air <7.0 n/a NA("> NA(2> NA(2> NA®

Key: * Some sample volume (liters) are below recommended limit for the TEM method; volume is based on pump reading ** Structure (S) is roughly equivalent to fiber (f) *** Chrysotile **** Actinolite

NA <’> - Not analyzed due to overloading of particulates NA - Not analyzed for TEM n/a - Not applicable NR - Not requested NS - Sample not submitted O R - Sample data rejected due to no sample volume H NC - Sample not collected NS - Sample not submitted to R - Sample data rejected due to no sample volume S NiOSH 7400: Fiber Analysis of Air samples via NiOSH 7400, Revision 3, issue 2, 8/15/34 O Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) ERA 40CFR Part 763 (AHERA) o o I Ln o o to Ui co co co

NYC-WTC_000231733