NYC-WTC_000187368

Z Z O o § co po m o c o CT oo (consulting Service,, lite. o' Ca5 O> Renata ■D o OO 304 Edgemont Terrace Teaneck NJ 07666 201692 7967 fax 201 678 1789 3. 03

D Certificate (j|f Analysis o o c Client: Riverpoint, Inc Project Location: WTC, NYC Analysis Date: October 11,2001 3 CD Client#: 101171 Work Area: N/A RCS Project # 102 O

PCM Air Sample Analysis Summary Lab ID Client ID Sample Description Date Flow Rate Duration Volume Fibers Fields Density Fiber Cone. LOD Collected [minutesl Piters/min.l Piters] [Fiber/mm’l (Fiber/ccl [Fiber/cc] 2629 011011 Park Place and Church___________ 10/11/01 15.00 45 675.0 6.00 100 7.64 0.004 0.004 2630 021011 Park Place and Greenwich__________ 10/11/01 ^4.50 45 652.5 3.00 100 3.82 <LOD 0.004 2631 031011 Murray and Church______________ _ 10/11/01 45 652.5 8.00 100 10.19 0.006 0.004 2632 041011 Murray and Greenwich_____________ 10/11/01 14.50 45 652.5 3.00 100 3.82 <LOD 0.004 2642 051011 Fulton and Church ___________ 10/11/01 iT^ 48 732.0 17.50 100 22.29 0.012 0.004 2633 061011 Warren and North End____________ 10/11/01 14.75 45 663.8 3.00 100 3.82 <LOD 0.004 2634 071011 West Street and Warren 10/11/01 15.00 35 525.0 OVL N/A N/A N/A N/A 2648 081011 Gateway Plaza ______________ 10/11/01 14^ 48 710.4 9.00 100 11.46 0.006 0.004 2647 091011 South End Avenue and Albany_______ 10/11/01 14.70 48 705.6 4.00 JOO 5.10 <LOD 0.004 2649 101011 West and Albany_________________ 10/11/01 15.00 47 705.0 _3^ JOO 3.82 <LOD 0.004 2646 111011 Rector Place by park____________ 10/11/01 14.70 50 735.0 13.00 JOO 16.56 0.009 0.004 2644 121011 3rd Place and West End and Waterside 10/11/01 14.70 49 720.3 9.00 100 11.46 0.006 0.004 2645 131011 West end of West Thames__________ 10/11/01 14.80 49 725.2 3.00 JOO 3.82 <LOD 0.004 2635 141011 Park Place and River Terrace________ 10/11/01 15.00 45 675.0 3.00 100 3.82 <LOD 0.004 2636 1S1011 River Terrace and Chambers________ 10/11/01 15.00 __ 45 675.0 2.00 100 2.55 <LOD 0.004 2637 161011 River Terrace and Warren__________ 10/11/01 14.75 45 663.8 4.00 100 5.10 <LOD 0.004 263^ 171011 North End and Park Place__________ 10/11/01 14.50 45 652.5 6.00 JOO 7.64 0.005 0.004 2639 181011 Vesey and River Terrace___________ 10/11/01 14.00 45 630.0 3.00 JOO 3.82 <LOD 0.004 2650 191011 Trinity Place and Thames__________ 10/11/01 15.00 48 720.0 2.00 JOO 2.55 <LOD 0.004 2643 201011 Vesey and West Broadway__________ 10/11/01 15.00 48 720.0 7.00 JOO 8.92 0.005 0.004 264^ FBI Field Blank 1 ______________ 10/11/01 0.00 0 0.0 0.00 JOO 0.00 N/A N/A 2641 FB2 Field Blank 2 10/11/01 0.00 0 0.0 0.00 100 0,00 N/A N/A O H k; I ELAP ID No. 11750 Expires 12:01 AM, April 1, 2002 Analysis Method: Phase Contrast Microscopy, NIOSH Method 7400 t\3 Limit of Quantitation (LOQ) = 102 [Fiber/mm^] OVL - sample overloaded o Limit of Detection (LOD) = 7 [Fiber/mm^] o o I o Analysis Performed By: o t\3 Marek Pawlik Laboratory Director to o co