NYC-WTC_000232930

NYC 9/11 Public Portal Document

NYC Response Asbestos Air Sampling Results for Staten island Landfiii Sampling Date and Time 5/5/20Q2Q600 to 2027 Date VaSidatioii Date; 05/08'2002

PCM by NiOSH 7400 ___________ TEM ( AHERA) Sampiing Sampling Sample Structures (#) Date Sample No. Location Volume* Matrix f/mm^ f/cc 0.5iJ - 5p 5P S/mm" S~f/cc‘* Fibers 05/05/02 LF04464 P-1 1045.00 Air <7.0 <0.003 0 0 <13.12 <0.0048 100 05/05/02 LF04465 P-2 1332.00 Air <7.0 <0.002 0 0 <15.75 <0.0046 100 05/05/02 LF04466 P-3 1296.00 Air <7.0 <0.002 0 0 <15.75 <0.0047 100 05/05/02 LF04467 P-4 1332.00 Air <7.0 <0.002 0 0 <15.75 <0.0046 100 05/05/02 LF04468 P-5 1404.00 Air <7.0 <0.002 0 0 <15.75 <0.0043 100 05/05/02 LF04469 P-6 1092.65 Air <7.0 <0.002 0 0 <13.12 <0.0046 100 05/05/02 LF04470 P-7 1440.00 Air <7.0 <0.002 0 0 <15.75 <0.0042 100 05/05/02 LF04471 P-8 1476.00 Air <7.0 <0.002 0 0 <15.75 <0.0041 100 05/05/02 LF04472 W-12A 1440.00 Air 20.38 0.005 0 1.36 0.0004 16.0 100 05/05/02 LF04473 W-12B 1084.45 Air <7.0 <0.002 0 0 <13.12 <0.0047 100 05/05/02 LF04474 B-13 1298.00 Air <7.0 <0.002 0 0 <15.75 <0.0047 100 05/05/02 LF04475 B-14 1404.00 Air <7.0 <0.002 0 0 <15.75 <0.0043 100 05/05/02 LF04476 T-15 1404.00 Air 21.66 0.006 0 0 <15.75 <0.0043 17.0 100 05/05/02 LF04477 T-16 1440.00 Air 30.57 0.008 0 0 <15.75 <0.0042 24.0 100 05/05/02 LF04478 0-17 1296.00 Air <7.0 <0.002 0 0 <15.75 <0.0047 100 05/05/02 LF04479 0-18 1368.00 Air <7.0 <0.002 0 0 <15.75 <0.0044 100 05/05/02 LF04480 0-19 1404.00 Air <7.0 <0.002 0 0 <15.75 <0.0043 100 05/05/02 LF04481 MPHS-20 1052.00 Air <7.0 <0.003 0 0 <13.12 <0.0048 100 05/05/02 LF04482 Lot Blank 0.00 Air <7.0 n/a NA<=^> NA<=> NA<=> NA<=> 100 05/05/02 LF04483 Trip Blank 0.00 Air <7.0 n/a NA(=^> NA(=^> NA(=^> 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 ““‘Amosite NA <’> - Not analyzed due to overloading of particulates NA - Not analyzed for TEM NA - Not analyzed due to wet filter 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 H NSOSH 7400: Fiber Anaiysis of Air samples via NIOSH 7400, Revision 3, Issue 2, 8/15/94 Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) ERA 40CFR Part 763 (AHERA) to Standard criteria; EPA 40CFR Part 763 (AHERA); 0.01 fiber/cc (PCM), 70 S/mm^ volume 1200 L, for 25 mm filter (TEM)

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NYC-WTC_000232930