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 20, 2001 Client#: 101171 Work Area: N/A RCS Project# 112

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] 2832 011020 Park Place and Church 10/20/01 15.00 45 675.0 11.00 100 14.01 0.008 0.004 2833 021020 Park Place and Greenwich__________ 10/20/01 14.50 45 652.5 15.50 100 19.75 0.012 0.004 2834 031020 Murray and Church________________ 10/20/01 15.00 45 675.0 13.00 100 16.56 0.009 0.004 2835 041020 Murray and Greenwich_____________ 10/20/01 14.50 45 652.5 8.00 100 10.19 0.006 0.004 2847 051020 Fulton and Church 10/20/01 15.00 45 675.0 32.50 100 41.40 0.024 0.004 2837 061020 Warren and North End_____________ 10/20/01 15.00 45 675.0 13.50 100 17.20 0.010 0.004 2836 071020 West Street and Warren____________ 10/20/01 14.75 45 663.8 4.00 100 5.10 <LOD 0.004 2853 081020 Gateway Plaza___________________ 10/20/01 14.75 45 663.8 7.00 100 8.92 0.005 0.004 2852 091020 South End Avenue and Albany_______ 10/20/01 14.65 47 688.6 8.00 100 10.19 0.006 0.004 2845 101020 West and Albany_________________ 10/20/01 14.75 45 663.8 5.00 100 6.37 <LOD 0.004 2851 111020 Rector Place by park______________ 10/20/01 14.70 46 676.2 9.50 100 12.10 0.007 0.004 2849 121020 3rd Place and West End and Waterside 10/20/01 15.00 45 675.0 5.00 100 6.37 <LOD 0.004 2850 131020 West end of West Thames 10/20/01 14.80 45 666.0 4.00 100 5.10 <LOD 0.004 2838 141020 Park Place and River Terrace________ 10/20/01 15.00 45 675.0 8.00 100 10.19 0.006 0.004 2839 151020 River Terrace and Chambers________ 10/20/01 15.00 45 675.0 3.00 100 3.82 <LOD 0.004 2840 161020 River Terrace and Warren 10/20/01 14.75 45 663.8 5.00 100 6.37 <LOD 0.004 2841 171020 North End and Park Place 10/20/01 15.00 45 675.0 6.00 100 7.64 0.004 0.004 2842 181020 Vesey and River Terrace___________ 10/20/01 14.50 45 652.5 4.50 100 5.73 <LOD 0.004 2846 191020 Trinity Place and Thames___________ 10/20/01 14.75 45 663.8 2.00 100 2.55 <LOD 0.004 2848 201020 Vesey and West Broadway__________ 10/20/01 14.50 45 652.5 18.00 100 22.93 0.014 0.004 2843 FBI Field Blank 1_____________________ 10/20/01 0.00 0 0.0 0.00 100 0.00 N/A N/A 2844 FB2 Field Blank 2 10/20/01 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 NO

NYC-WTC_000231546