NYC-WTC_000196415

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o o co g O I U o Services, Inc. c o l^cnata CT o V^onsulting o' co 304 Edgemont Terrace Teaneck NJ 07666 201 692 7967 fax 201 678 1789 U CD o 3. Ctl 03 Certificate of Analysis o Client: Riverpoint, Inc Project Location: WTC, NYC Analysis Date: March 12, 2002 o o c Client#: 101171 Work Area: N/A RCS Project # 255 3 CD

PCM Air Sample Analysis Summary Lab ID Client ID Sample Description Date Flow Rate Duration Volume Fibers Fields Density Fiber Cone. LOD Collected [lilers/min.l [minutes! [liters! [Fibcr/mm^l [Fiber/cc] [Fiber/cc] 5770 010312 Park Place and Church 3/12/02 14.05 45 632.3 3.00 100 3.82 <LOD 0.004 5771 020312 Park Place and Greenwich 3/12/02 14.05 45 632.3 6.50 100 8.28 0.005 0.004 5772 030312 Murray and Church________________ 3/12/02 14.30 45 643.5 6.00 100 7.64 0.005 0.004 5773 040312 Murray and Greenwich_____________ 3/12/02 14.30 45 643.5 4.00 100 5.10 <LOD 0.004 5774 050312 Fulton and Church 3/12/02 14.05 45 632.3 5.00 100 6.37 <LOD 0.004 5757 060312 Warren and North End 3/12/02 14.70 45 661.5 1.00 100 1.27 <LOD 0.004 5758 070312 West Street and Warren 3/12/02 14.70 45 661.5 4.00 100 5.10 <LOD 0.004 5764 080312 Gateway Plaza____________________ 3/12/02 15.00 45 675.0 2.00 100 2.55 <LOD 0.004 5765 090312 South End Avenue and Albany________ 3/12/02 15.00 45 675.0 4.00 100 5.10 <LOD 0.004 5766 100312 West and Albany__________________ 3/12/02 15.00 45 675.0 1.00 100 1.27 <LOD 0.004 5767 110312 Rector Place by park_______________ 3/12/02 15.00 45 675.0 3.00 100 3.82 <LOD 0.004 5768 120312 3rd Place and South End and Waterside 3/12/02 15.00 45 675.0 5.00 100 6.37 <LOD 0.004 5769 130312 West end of West Thames 3/12/02 15.00 45 675.0 2.00 100 2.55 <LOD 0.004 5759 140312 Park Place and River Terrace 3/12/02 14.70 45 661.5 5.00 100 6.37 <LOD 0.004 5760 150312 River Terrace and Chambers 3/12/02 14.70 45 661.5 6.00 100 7.64 0.004 0.004 5761 160312 River Terrace and Warren 3/12/02 14.45 45 650.3 5.00 100 6.37 <LOD 0.004 5762 170312 North End and Park Place 3/12/02 14.70 45 661.5 1.00 100 1.27 <LOD 0.004 5763 180312 Vesey and River Terrace____________ 3/12/02 14.45 45 650.3 4.00 100 5.10 <LOD 0.004 5775 190312 Trinity Place and Thames___________ 3/12/02 14.30 45 643.5 4.00 100 5.10 <LOD 0.004 5776 200312 Vesey and West Broadway__________ 3/12/02 14.30 45 643.5 7.00 100 8.92 0.005 0.004 5777 FBI Field Blank 3/12/02 0.00 0 0.0 0.00 100 0.00 N/A N/A 5778 FB2 Field Blank 3/12/02 0.00 0 0.0 0.00 100 0.00 N/A N/A Q H ELAP ID No. 11750 Expires 12:01 AM, April 1, 2002 Analysis Method: Phase Contrast Microscopy, NIOSH Method 7400 Limit of Quantitation (LOQ) = 102 [Fiber/mm^] Limit of Detection (LOD) = 7 [Fiber 'mm ’] S o O O Analysis Performed By: I Marek Pawlik o o Laboratory Director co kO

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