NYC-WTC_000187531

z z o o io (Z- onsuiting Services, Inc. co enala ■D I o 304 Edgemont Terrace Teaneck NJ 07666 201 692 7967 fax 201 678 1789 c o CT o o' 00 ■D cn Certificate of Analysis o 3. GO 03 Client: Riverpoint, Inc Project Location: WTC, NYC Analysis Date: February 7, 2002 Client#: 101171 Work Area: N/A RCS Project #216 o o o c 3 PCM Air Sample Analysis Summary CD Lab ID Client ID Sample Description Date Flow Rate Duration Volume Fibers Fields Density Fiber Cone. LOD Collected {liters min.] [minutes] [liters]__ [Fiber/mm~] [Fiber/cc] [Fiber/cc] 4996 010207 Park Place and Church 217102 14.80 45 666.0 6.00 100 7.64 0.004 0.004 4997 020207 Park Place and Greenwich 2/7/02 14.80 45 666.0 3.00 100 3.82 <LOD 0.004 4998 030207 Murray and Church_________________ 2/7/02 14.80 45 666.0 7.00 100 8,92 0.005 0.004 4999 040207 Murray and Greenwich______________ 2/7/02 14.80 45 666.0 2.00 100 2.55 <LOD 0.004 5000 050207 Fulton and Church 2/7/02 14.80 45 666.0 3.00 100 3.82 <LOD 0.004 4982 060207 Warren and North End 2/7/02 14.60 45 657.0 2.00 100 2.55 <LOD 0.004 4983 070207 West Street and Warren 2/7/02 14.60 45 657.0 5.00 100 6.37 <LOD 0.004 4989 080207 Gateway Plaza_____________________ 2/7/02 14.70 45 661.5 3.50 100 4.46 <LOD 0.004 4990 090207 South End Avenue and Albany _______ 2/7/02 14.70 45 661.5 1.50 100 1.91 <LOD 0,004 4991 100207 West and Albany___________________ 2/7/02 14.45 45 650.3 4.00 100 5.10 <LOD 0.004 4992 110207 Rector Place by park________________ 2/7/02 14.70 45 661.5 2.00 100 2.55 <LOD 0.004 4993 120207 3rd Place and South End and Waterside 2/7/02 14.45 45 650.3 3.00 100 3.82 <LOD 0.004 4994 130207 West end of West Thames 2/7/02 14.45 45 650.3 4.00 100 5.10 <LOD 0.004 4984 140207 Park Place and River Terrace 2/7/02 14.60 45 657.0 2.00 100 2.55 <LOD 0.004 4985 150207 River Terrace and Chambers 2/7/02 14.30 45 643.5 2.00 100 2.55 <LOD 0.004 4986 160207 River Terrace and Warren 2/7/02 14.30 45 643.5 4.50 100 5.73 <LOD 0.004 4987 170207 North End and Park Place 2/7/Q2 14.60 45 657.0 3.00 100 3.82 <LOD 0.004 4988 180207 Vesey and River Terrace____________ 2/7/02 14.30 45 643.5 7.50 100 9.55 0.006 0.004 4995 190207 Trinity Place and Thames____________ 2/7/02 14.80 45 666.0 5.00 100 6.37 <LOD 0.004 5001 200207 Vesey and West Broadway__________ 2/7/02 14.80 45 666.0 4.00 100 5.10 <LOD 0.004 5002 FBI Field Blank________________________ 2/7/02 0.00 0 0.0 0.00 100 0.00 N/A N/A 5003 FB2 Field Blank 2/7/02 0.00 0 0.0 0.00 100 0.00 N/A n/a' O

ELAP ID No. 11750 Expires 12:01 AM, April 1,2002 Analysis Method: Phase Contrast Microscopy, NIOSH Method 7400 to Limit of Quantitation (LOQ) = 102 [Fiber/mm'] s Limit of Detection (LOD) - 7 [Fiber/mm'] o o o I Analysis Performed By: o o Marek Pawlik kO Laboratory Director (JI

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