PCM Air Sample Analysis Summary for WTC, March 2002

NYC 9/11 Public Portal Document

{

(Consulting Services, Inc. enata 304 Edgemont Terrace Teaneck NJ 07666 201692 7967 fax 201 678 1789

Certificate of Analysis Client: Riverpoint, Inc Project Location: WTC, NYC Analysis Date: January 30, 2002 Client#: 101171 Work Area: N/A RCS Project #208

PCM Air Sample Analysis Summary Lab ID Client ID Sample Description Date Flow Rate Duration Volume Fibers Fields Density Fiber Cone. LOD Collected [liters/min.] [minutes] filters] [Fiber/mm~] [Fiber/cc] [Fiber/cc] 4820 010130 Park Place and Church 1/30/02 14.80 45 666.0 7.50 100 9.55 0.006 0.004 4821 020130 Park Place and Greenwich 1/30/02 14.80 45 666.0 6.00 100 7.64 0.004 0.004 4822 030130 Murray and Church_________________ 1/30/02 14.80 45 666.0 11.50 100 14.65 0.008 0.004 4823 040130 Murray and Greenwich______________ 1/30/02 15.00 45 675.0 5.00 100 6.37 <LOD 0.004 4824 050130 Fulton and Church 1/30/02 15.00 45 675.0 5.00 100 6.37 <LOD 0.004 4806 060130 Warren and North End 1/30/02 14.60 45 657.0 4.00 100 5.10 <LOD 0.004 4807 070130 West Street and Warren 1/30/02 14.60 45 657.0 6.00 100 7.64 0.004 0.004 4813 080130 Gateway Plaza_____________________ 1/30/02 14.45 45 650.3 2.00 100 2.55 <LOD 0.004 4814 090130 South End Avenue and Albany________ 1/30/02 14.45 45 650.3 2.00 100 2.55 <LOD 0.004 4815 100130 West and Albany___________________ 1/30/02 14.70 45 661.5 3.00 100 3.82 <LOD 0.004 4816 110130 Rector Place by park_______________ 1/30/02 14.70 45 661.5 6.00 100 7.64 0.004 0.004 4817 120130 3rd Place and South End and Waterside 1/30/02 14.45 45 650.3 5.00 100 6.37 <LOD 0.004 4818 130130 West end of West Thames 1/30/02 14.70 45 661.5 3.00 100 3.82 <LOD 0.004 4808 140130 Park Place and River Terrace 1/30/02 14.60 45 657.0 2.00 100 2.55 <LOD 0.004 4809 150130 River Terrace and Chambers 1/30/02 14.60 45 657.0 2.00 100 2.55 <LOD 0.004 4810 160130 River Terrace and Warren 1/30/02 14.60 45 657.0 4.00 100 5.10 <LOD 0.004 4811 170130 North End and Park Place 1/30/02 14.60 45 657.0 2.00 100 2,55 <LOD 0.004 4812 180130 Vesey and River Terrace____________ 1/30/02 14.30 45 643.5 10.00 100 12.74 0.008 0.004 4819 190130 Trinity Place and Thames____________ 1/30/02 14.70 45 661.5 6.00 100 7.64 0.004 0.004 4825 200130 Vesey and West Broadway__________ 1/30/02 14.80 45 666.0 7.00 100 8.92 0.005 0.004 4826 FBI Field Blank 1/30/02 0.00 0 0.0 0.00 100 0.00 N/A N/A 4827 FB2 Field Blank 1/30/02 0.00 0 0.0 0.00 100 0.00 N/A N/A

ELAP ID No. 11750 Expires 12:01 AM, April 1, 2002 Analysis Method: Phase Contrast Microscopy, NIOSH Method 7400 Limit of Quantitation (LOQ) = 102 [Fiber/mm'] Limit of Detection (LOD) = 7 [Fiber/mm']

Analysis Performed By; Marek Pawlik Laboratory Director

NYC-WTC_000161885