NYC-WTC_000232878

NYC 9/11 Public Portal Document

NYC Response Asbestos Air Sampling Resuits for Staten island Landfill Sampling Date and Time 2/10'20020743 to 1943 Date VaSidatioii Date; 02/13/2002

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‘* 02/10/02 LF02738 P-1 1440.00 Air <7.0 <0.002 0 0 <15.75 <0.0042 02/10/02 LF02739 P-2 1296.00 Air <7.0 <0.002 0 0 <15.75 <0.0047 02/10/02 LF02740 P-3 1404.00 Air <7.0 <0.002 0 0 <15.75 <0.0043 02/10/02 LF0274f P-4 1276.00 Air <7.0 <0.002 0 0 <15.75 <0.0048 02/10/02 LF02742 P-5 1368.00 Air <7.0 <0.002 0 0 <15.75 <0.0044 02/10/02 LF02743 P-6 1157.10 Air <7.0 <0.002 0 0 <13.12 <0.0044 02/10/02 LF02744 P-7 1398.15 Air <7.0 <0.002 0 0 <15.75 <0.0043 02/10/02 LF02745 P-8 1252.00 Air <7.0 <0.002 0 0 <15.75 <0.0048 02/10/02 LF02746 W-11 1398.15 Air <7.0 <0.002 0 0 <15.75 <0.0043 02/10/02 LF02747 W-12A 972.00 Air 11.46 0.005 22.50 0.0089 02/10/02 LF02748 W-12B 1398.15 Air <7.0 <0.002 0 15.75 0.0043 02/10/02 LF02749 B-13 1408.00 Air <7.0 <0.002 0 0 <15.75 <0.0043 02/10/02 LF02750 B-14 1213.20 Air <7.0 <0.002 0 0 <15.75 <0.0050 02/10/02 LF02751 T-15 1404.00 Air 11.46 0.003 0 0 <15.75 <0.0043 02/10/02 LF02752 T-16 1440.00 Air 11.46 0.003 0 0 <15.75 <0.0042 02/10/02 LF02753 0-17 1438.00 Air <7.0 <0.002 0 0 <15.75 <0.0042 02/10/02 LF02754 0-18 1184.00 Air <7.0 <0.002 0 0 <13.12 <0.0043 02/10/02 LF02755 0-19 1269.20 Air <7.0 <0.002 0 0 <15.75 <0.0048 02/10/02 LF02756 MPHS-20 841.50 Air <7.0 <0.003 0 0 <9.84 <0.0045 02/10/02 LF02757 Lot Blank 0.00 Air <7.0 n/a NA’"’ NA® NA® NA® 02/10/02 LF02758 Trip Blank 0.00 Air <7.0 n/a NA<''> NA® NA’^'l NA’^'l

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

NA - Not analyzed due to overloading of particulates NA - Not analyzed for TEM n/a - Not applicable NR - Not requested NS - Sample not submitted R - Sample data rejected due to no sample volume NC - Sample not collected NS - Sample not submitted

O NiOSH 740G; Fiber Anaiysis of Air samples via NiOSH 74G0, Rsvision 3, issue 2, 8/15'94 Asbestos Fiber Analysis by Transmission Eiectron Microscopy (TEM) EPA 40GFR Part 763 (AHERA) H Standard criteria: EPA 40CFR Part 763 (AHERA);0.G1 iiber/cc (PCM), 70 S/mmL volume 1200 L, for 25 mm filter (TEM) to S o o o I Ln o

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NYC-WTC_000232878