NYC-WTC_000187321

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304 Edgemont Terrace Teaneck NJ 07<'666 201 692 7967 fax 201 678 1789 ■D c CT o' Ca5 U ro O 3. 03 Certificate of Analysis Project Location; WTC, NYC , Analysis Date; January 19, 2002 o Client; Riverpoint, Inc o o c Client#; 101171 Work Area; N/A RCS Project # 197 3 CD O PCM Air Sample Ans lysis Summary Lab ID Client ID Sample Description Date Flow Duration Volume Fibers Fields Density Fiber Cone. LOD Collected II [minutesi flitersl [Fiber/mm^l [Fiber/cc] [Fiber/cci 4578 010119 Park Place and Church 1/19/02 45 666.0 7.50 100 9.55 0.006 0.004 4579 020119 Park Place and Greenwich___________ 1/19/02 45 666.0 6.00 JOO 7.64 0.004 0.004 4580 030119 Murray and Church_________________ 1/19/02 14-80 45 666.0 11.00 100 14.01 0.008 0.004 4581 040119 Murray and Greenwich______________ 1/19/02 14,80 45 666.0 8.00 100 10.19 0.006 0.004 458^ 050119 Fulton and Church_________________ 1/19/02 1 F.13! 45 675.0 5.00 100 6.37 <LOD 0.004 4564 060119 Warren and North End______________ 1/19/02 Jrai 45 657.0 4.00 100 5.10 <LOD 0.004 4565 070119 West Street and Warren____________ 1/19/02 1 45 657.0 5.00 100 6.37 <LOD 0.004 4571 080119 Gateway Plaza____________________ 1/19/02 1 45 661.5 2.00 100 2.55 <LOD 0.004 4572 090119 South End Avenue and Albany________ 1/19/02 1 45 661.5 7.00 100 8.92 0.005 0.004 4573 100119 West and Albany___________________ 1/19/02 J 45 650.3 5.00 100 6.37 <LOD 0.004 4574 110119 Rector Place by park_______________ 1/19/02 1 133 45 661.5 2.00 100 2.55 <LOD 0.004 4575 120119 3rd Place and South End and Waterside 1/19/02 14.45 45 650.3 4.00 100 5.10 <LOD 0.004 4576 130119 West end of West Thames 1/19/02 14:45 45 650.3 2.00 100 2.55 <LOD 0.004 4566 140119 Park Place and River Terrace 4567 150119 River Terrace and Chambers 1/19/02 1/19/02 w lOO 45 45 657.0 657.0 7.00 10.00 100 100 8.92 12.74 0.005 0.007 0.004 0.004 4568 160119 River Terrace and Warren 1/19/02 1/19/02 J® 45 45 657.0 657.0 6.00 JM 7.64 0.004 0.004 4569 170119 North End and Park Place___________ 3.50 JOO 4.46 <LOD 0.004, 4570 180119 Vesey and River Terrace____________ 1/19/02 45 657.0 2.00 JOO 2.55 <LOD 0.004 4577 190119 Trinity Place and Thames____________ 1/19/02 14.^0 45 661.5 6.00 JOO 7.64 0.004 0.004 4583 200119 Vesey and West Broadway__________ 1/19/02 14.80 45 666.0 _8^ 100 10.19 6.006 0.004 4584 FBI Field Blank 1/19/02 0.00 0 0.0 0.00 100 0.00 N/A N/A o 4585 FB2 Field Blank______________ 1/19/02 0 0.0 0.00 100 0.00 N/A N/A H

ELAP ID No. 11750 Expires 12;01 AM, April 1,2002 Analysis l^ethod; Phase Contrast Microscopy, NIOSH Method 7400 Limit of Quantitation (LOQ) = 102 [Fiber/mm^] S Q Limit of Detection (LOD) = 7 [Fiber/mm^] o o I o o Analysis Performed By; s! * Marek Pawlik I Laboratory Director on