NYC-WTC_000187538

z z o o io co

I CZ'onsulting Services, Inc. ■D o c o o nata CT

304 Edgemont Terrace Teaneok NJ 07666 201 692 7967 fax 201 678 1789 o' oo ■D Oi o Ca3 p- 03 OO Certificate of Analysis O Client: Riverpoint, Inc Project Location: WTC, NYC Analysis Date: November 29,2001 o o Client#: 101171 Work Area: N/A RCS Project # 161 c 3 CD

PCM Air Sample Analysis Summary Lab ID Client ID Sample Description Date Flow Rote Duration Volume Fiben Fields Density Fiber Cone. LOD Collected [litm/min,] [minutea] [litetsl [Fibcr/mm^] [Fiber/cc] [Fiber/cc] 3809 011129 Park Place and Church 11/29/01 14.30 45 643.5 6.00 100 7.64 0.005 0.004 3804 021129 Park Place and Greenwich 11/29/01 14.80 45 666.0 7.00 100 8.92 0.005 0.004 3810 031129 Murray and Church_______________ 11/29/01 14.30 45 643.5 7.00 100 8.92 0.005 0.004 3805 041129 Murray and Greenwich____________ 11/29/01 15.00 45 675.0 4.50 100 5.73 <LOD 0.004 3806 051129 Fulton and Church_______________ 11/29/01 15.00 45 675.0 2.00 100 2.55 <LOD 0.004 3811 061129 Warren and North End 11/29/01 14.30 45 643.5 5.00 100 6.37 <LOD 0.004 3812 071129 West Street and Warren 11/29/01 14.30 45 643.5 8.00 100 10.19 0.006 0.004 3818 081129 Gateway Plaza__________________ 11/29/01 15.00 45 675.0 6.00 100 7.64 0.004 0.004 3819 091129 South End Avenue and Albany______ 11/29/01 15.00 45 675.0 5.00 100 6.37 <LOD 0.004 3820 101129 West and Albany________________ 11/29/01 14.90 45 670.5 8.50 100 10.83 0.006 0.004 3821 111129 Rector Place by park_____________ 11/29/01 15.00 45 675.0 10.50 100 13.38 0.008 0.004 3822 121129 3rd Place and West End and Waterside 11/29/01 15.00 45 675.0 7.00 100 8.92 0.005 0.004 3823 131129 West end of West Thames 11/29/01 15.00 45 675.0 3.00 100 3.82 <LOD 0.004 3813 141129 Park Place and River Terrace 11/29/01 14.30 45 643.5 4.00 100 5.10 <LOD 0.004 3814 151129 River Terrace and Chambers 11/29/01 14.60 45 657.0 4.00 100 5.10 <LOD 0.004 3815 161129 River Terrace and Warren 11/29/01 14.30 45 643.5 5.00 100 6.37 <LOD 0.004 3816 171129 North End and Park Place 11/29/01 14.30 45 643.5 2.50 100 3.18 CLOD 0.004 3817 181129 Vesey and River Terrace___________ 11/29/01 14.60 45 657.0 5.00 100 6.37 CLOD 0.004 3807 191129 Trinity Place and Thames__________ 11/29/01 15.00 45 675.0 7.00 100 8.92 0.005 0.004 3808 201129 Vesey and West Broadway_________ 11/29/01 15.00 45 675.0 6.00 100 7.64 0.004 0.004 3824 FBI Field Blank 1 11/29/01 0.00 0 0.0 0.00 100 0.00 N/A N/A 3825 FB2 Field Blank 2 11/29/01 0.00 0 0.0 0.00 100 0.00 N/A N/A o H ELAP ID No. 11750 Expires 12:01 AM, April 1, 2002 Analysis Method: Phase Contrast Microscopy, NIOSH Method 7400 N3 (—1 Limit of Quantitation (LOQ) = 102 [Fiber/mm^] S o Limit of Detection (LOD) = 7 [Fiber/mnr] o o Io o Analysis Performed By: AU i Marek Pawlik (JI Laboratory Director o