PCM Air Sample Analysis Summary for WTC, March 2002

NYC 9/11 Public Portal Document

(Z-onsulting Seiviccs, 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: February 1,2002 Client#: 101171 Work Area: N/A RCS Project #210

PCM Air Sample Analysis Summary Lab ID Client ID Sample Description Date Flow Rate Duraiion Volume Fibers Fields Density Fiber Cone. LOD Collected [liters min.] [minutes] [liters] [Fiber/mm'l [Fiber/cc] fFiber.'ce] 4864 010201 Park Place and Church_____________ 2/1/02 15.00 45 675.0 4.00 100 5.10 <LOD 0.004 4865 020201 Park Place and Greenwich__________ 2/1/02 14.80 45 666.0 7.00 100 8.92 0.005 0.004 4866 030201 Murray and Church________________ 2/1/02 15.00 45 675.0 5.50 100 7.01 <LOD 0.004 4867 040201 Murray and Greenwich_____________ 2/1/02 14.80 45 666.0 2.00 100 2.55 <LOD 0.004 4868 050201 Fulton and Church 2/1/02 15.00 45 675.0 6.00 100 7.64 0.004 0.004 4850 060201 Warren and North End 2/1/02 14.60 45 657.0 4.00 100 5.10 <LOD 0.004 4851 070201 West Street and Warren 2/1/02 14.60 45 657.0 3.00 100 3.82 <LOD 0.004 4857 080201 Gateway Plaza___________________ 2/1/02 14.45 45 650.3 4.50 100 5.73 <LOD 0.004 4858 090201 South End Avenue and Albany_______ 2/1/02 14.45 4^ 650.3 6.00 100 7.64 0.005 0.004 4859 100201 West and Albany_________________ 2/1/02 14.45 45 650.3 3.00 100 3.82 <LOD 0.004 4860 110201 Rector Place by park______________ 2/1/02 14.45 45 650.3 5.00 100 6.37 <LOD 0.004 4861 120201 3rd Place and South End and Waterside 2/1/02 14.70 45 661.5 3.50 w 4.46 <LOD 0.004 4862 130201 West end of West Thames 2/1/02 14.70 45 661.5 4.00 100 5.10 <LOD 0.004 4852 140201 Park Place and River Terrace________ 2/1/02 14.60 45 657.0 5.00 100 6.37 <LOD 0.004 4853 150201 River Terrace and Chambers________ 2/1/02 14.30 45 643.5 2.50 100 3.18 <LOD 0.004 4854 160201 River Terrace and Warren__________ 2/1/02 14.60 45 657.0 5.00 100 6.37 <LOD 0.004 4855 170201 North End and Park Place 2/1/02 14.30 45 643.5 4.00 100 5.10 <LOD 0.004 4856 180201 Vesey and River Terrace 2/1/02 14.30 45 643.5 11.50 100 14.65 0.009 0.004 4863 190201 Trinity Place and Thames 2/1/02 14.70 45 661.5 4.00 100 5.10 <LOD 0.004 4869 200201 Vesey and West Broadway_________ 2/1/02 14.80 45 666.0 7.00 100 8.92 0.005 0.004 4870 FBI Field Blank______________________ 2/1/02 0.00 0 0.0 0.00 100 0.00 N/A . N/A 4871 FB2 Field Blank 2/1/02 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; //u i.bb Marek Pawlik Laboratory Director

NYC-WTC_000161887