NYC-WTC_000187369

NYC 9/11 Public Portal Document

IRenata (Z'onsulting Services, 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 13, 2001 Client #: 101171 Work Area: N/A , L RCS Project # 105

PCM Air Sample Analysis Summary Lab ID Client ID Sample Description Date Flow Rate Duration Volume Fibers Fields Density Fiber Cone. LOD Collected [litere/min.] fminutes] flitersl [Fiberimm’l (Fiber/ccl [Fiber/ccl 2678 011013 Park Place and Church____________ 10/13/01 15.00 45 675.00 10.0 100 12.74 0.007 0.004 2679 021013 Park Place and Greenwich__________ 10/13/01 13.50 45 607.50 7.0 100 8.92 0.006 0.004 2680 031013 Murray and Church_______________ 10/13/01 15.00 45 675.00 6.0 100 7.64 0.004 0.004 2681 041013 Murray and Greenwich_____________ 10/13/01 14.50 45 652.50 7.0 100 8.92 0.005 0.004 2691 051013 Fulton and Church_______________ 10/13/01 1'5.00 46 690.00 8.0 100 10.19 0.006 0.004 2682 061013 Warren and North End_____________ 10/13/01 45 675.00 6.0 100 7.64 0.004 0.004 2683 071013 West Street and Warren___________ 10/13/01 .14.00 ____ 45 630.00 _A0 100 5.10 <LOD 0.004 2697 081013 Gateway Plaza___________________ 10/13/01 50 732.50 11.0 100 14.01 0.007 0.004 2696 091013 South End Avenue and Albany_______ 10/13/01 14.70 50 735.00 5.0 100 6.37 <LOD 0.004 2698 101013 West and Albany_________________ 10/13/01 14.80 45 666.00 6.0 100 7.64 0.004 0.004 2695 111013 Rector Place by park______________ 10/13/01 14.80 46 680.80 2.0 100 2.55 <LOD 0.004 2693 121013 3rd Place and West End and Waterside 10/13/01 15.00 45 675.00 4.0 100 5.10 <LOD 0.004 2694 131013 West end of West Thames 10/13/01 14.90 45 670.50 3.0 100 3.82 <LOD 0.004 2684 141013 Park Place and River Terrace_______ 10/13/01 14.50 45 652.50 3.0 100 3.82 <LOD 0.004 2685 151013 River Terrace and Chambers________ 10/13/01 15.00 45 675.00 4.0 100 5.10 <LOD 0.004 2686 161013 River Terrace and Warren__________ 10/13/01 14.00 45 630.00 6.5 100 8.28 0.005 0.004 2687 171013 North End and Park Place__________ 10/13/01 14.50 45 652.50 2.0 100 2.55 <LOD 0.004 2688 181013 Vesey and River Terrace___________ 10/13/01 14.75 45 663.75 3.0 JOO 3.82 <LOD 0.004 2699 191013 Trinity Place and Thames__________ 10/13/01 14,70 46 676.20 9.5 100 12.10 0.007 0.004 2692 201013 Vesey and West Broadway_________ 10/13/01 15.05 47 707.35 7.0 100 8.92 0.005 0.004 2689 FBI FieldJ!ank_l_________________ 10/13/01 0,00 0 0.00 0.0 100 0 N/A N/A 2690 FB2 Field Blank 2 ________________ 10/13/01 0,00 0 0.00 0.0 100 0 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 Limit of Quantitation (LOQ) = 102 [Fiber/mm^] o Limit of Detection (LOD) = 7 [Fiber/mm^] o

I o Analysis Performed By: t/// o o ro Marek Pawlik Laboratory Director

O

NYC-WTC_000187369