NYC-WTC_000231431

NYC 9/11 Public Portal Document

cnata V^onsulting c kJcrviccs, Inc. 304 Edgemont Terrace Teaneck NJ 07666 201 692 7967 fax 201 678 1789

Certificate of Analysis Client: Riverpoint, Inc Project Location: WTC, NYC Analysis Date: October 18, 2001 Client#: 101171 Work Area: N/A RCS Project# 110

PCM Air Sample Analysis Summary Lab ID Client ID Sample Description Date Flow Rate Duration Volume Fibers Fields Density Fiber Cone. LOD Collected [liters/mrn.] [minutes] [liters] [Fiber/mm"] [Fiber/cc] [Fiber/cc] 2788 011018 Park Place and Church 10/18/01 14.50 45 652.5 6.00 100 7.64 0.005 0.004 2789 021018 Park Place and Greenwich__________ 10/18/01 14.50 45 652.5 5.00 100 6.37 <LOD 0.004 2790 031018 Murray and Church________________ 10/18/01 15.00 45 675.0 3.00 100 3.82 <LOD 0.004 2791 041018 Murray and Greenwich_____________ 10/18/01 14.50 45 652.5 12.50 100 15.92 0.009 0.004 2803 051018 Fulton and Church 10/18/01 15.00 46 690.0 15.50 100 19.75 0.011 0.004 2793 061018 Warren and North End_____________ 10/18/01 15.00 45 675.0 6.00 100 7.64 0.004 0.004 2792 071018 West Street and Warren____________ 10/18/01 14.50 45 652.5 4.00 100 5.10 <LOD 0.004 2809 081018 Gateway Plaza___________________ 10/18/01 14.75 46 678.5 4.00 100 5.10 <LOD 0.004 2808 091018 South End Avenue and Albany_______ 10/18/01 14.90 46 685.4 6.00 100 7.64 0.004 0.004 2801 101018 West and Albany_________________ 10/18/01 15.00 45 675.0 3.00 100 3.82 <LOD 0.004 2807 111018 Rector Place by park______________ 10/18/01 14.75 46 678.5 3.00 100 3.82 <LOD 0.004 2805 121018 3rd Place and West End and Waterside 10/18/01 14.90 45 670.5 5.50 100 7.01 0.004 0.004 2806 131018 West end of West Thames 10/18/01 15.00 45 675.0 6.00 100 7.64 0.004 0.004 2794 141018 Park Place and River Terrace________ 10/18/01 14.75 45 663.8 3.00 100 3.82 <LOD 0.004 2795 151018 River Terrace and Chambers________ 10/18/01 15.00 45 675.0 2.00 100 2.55 <LOD 0.004 2796 161018 River Terrace and Warren 10/18/01 14.75 45 663.8 3.00 100 3.82 <LOD 0.004 2797 171018 North End and Park Place 10/18/01 14.50 45 652.5 4.00 100 5.10 <LOD 0.004 2798 181018 Vesey and River Terrace___________ 10/18/01 15.00 54 810.0 4.50 100 5.73 <LOD 0.003 2802 191018 Trinity Place and Thames___________ 10/18/01 15.00 45 675.0 2.00 100 2.55 <LOD 0.004 2804 201018 Vesey and West Broadway__________ 10/18/01 15.00 45 675.0 11.00 100 14.01 0.008 0.004 2799 FB Field Blank 1_____________________ 10/18/01 0.00 0 0.0 0.00 100 0.00 N/A N/A 2800 FB2 Field Blank 2 10/18/01 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 NJ Limit of Quantitation (LOQ) = 102 [Eiber/mm^] S o Limit of Detection (LOD) = 7 [Eiber/mm^] o o Io o co Analysis Performed By: A4 ^.24 co Marek Pawlik co o Laboratory Director co Oh o

NYC-WTC_000231544