NYC-WTC_000204941

Z z o o co § NYC Response Asbestos Air Sampling Results for Staten Island Landfill '2 o o Sampling Date and Times: 11/08/01 0657 to 11/08/01 1948 Data Validation Date; 11/10/2001 ■D c CT o' KJ PCM by NIOSH 7400 TEM AHERA) ■D O Ji Sampling Sampling Sample Structures (#) o CO 3. Ji Date Sample No. Location Volume* Matrix f/mm’ f/cc 0.5// - 5// 5p S/mm’ S-f/CC” 03 o LF00398 P-1 11/08/01 730 Air <7.0 <0.004 0 0 <8.89 <0.0047 o o 11/08/01 LF00399 P-2 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 o 11/08/01 LF0O40O P-3 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 c 11/08/01 LF00401 P-4 717 Air <7.0 <0.004 2-.. 0 17.78 0.0095 3 2... CD 11/08/01 LF00402 P-5 720 Air <7.0 <0.004 26.67 0.0143 11/08/01 LF00403 P-6 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 11/08/01 LFOO404 P-7 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 11/08/01 LF00405 P-8 674 Air <7.0 <0.004 0 0 <8.00 <0.0046 11/08/01 LF00406 S-9A 720 Air <7.0 <0.004 1*** 0 8.89 0.0048 11/08/01 LF00407 S-9B 728 Air <7.0 <0.004 0 0 <8.89 <0.0047 11/08/01 LF00408 S-10A 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 11/08/01 LF0O409 S-10B 720 Air <7.0 <0.004 1*** 0 8.89 0.0048 11/08/01 LF00410 W-11 720 Air 14.01 0.007 1*** 0 8.89 0.0048 11/08/01 LF00411 W-12A 542 Air <7.0 <0.005 0 8.00 0.0057 11/08/01 LF00412 W-12B 800 Air <7.0 <0.003 0 0 <10.00 <0.0048 11/08/01 LF00413 B-13 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 11/08/01 LF00414 B-14 720 Air <7.0 <0.004 1*** 0 8.89 0.0048 11/08/01 LF00415 T15 727 Air <7.0 <0.004 0 0 <8.89 <0.0047 11/08/01 LF00416 T16 722 Air <7.0 <0.004 5*** 0 44.44 0.0237 11/08/01 LF00417 Lot Blank 0 Air <7.0 n/a NA® NA® NA‘®> 11/08/01 LF00418 Trip Blank 0 Air <7.0 n/a NA® NA® NA‘=^> NA<2>

Key: * Sample volume (liters) is 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 due to no sample volume R - Sample data rejected due to no sample volume o H K NIOSH 7400: Fiber Analysis of Air samples via NIOSH 7400, Revision 3, Issue 2. 8/15/94 I KJ Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) EPA 40CFR Part 763 (AHERA) Standard criteria: EPA40CFR Part 763 (AHERA): 0.01 fiber/cc (PCM), 70 S/mm^ volume 1200 L, for 25 mm filter (TEM)

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o CD WTC FK-11-08-01 am Ui o Ui