NYC-WTC_000187351

NYC 9/11 Public Portal Document

^Ztonsulting Services, Inc. nata 304 Edgemont Tenace Teaneck NJ 07666 201 692 7967 fax 201 678 1789

Certificate of Analysis Client: Riverpoint, Inc Project Location: WTC, NYC Analysis Date: November 26, 2001 Client#: 101171 Work Area: N/A RCS Project # 156

PCM Air Sample Analysis Summary Lab ID Clienl ID Sample Descriplion Date Flow Rate Duration Volume Fibers Fields Density Fiber Cone. LOD Collected fliters/min.l fminutesl flitersl fFiber/mm^l [Fiber/cc] [Fiber/ccl 3722 011126 Park Place and Church 11/26/01 14.60 45 657.0 7.00 100 8.92 0.005 0.004 3717 021126 Park Place and Greenwich 11/26/01 14.80 45 666.0 4.50 100 5.73 <LOD 0.004 3723 031126 Murray and Church ____________ 11/26/01 14.60 45 657.0 5.00 100 6.37 <LOD 0.004 3718 041126 Murray and Greenwich_____________ 11/26/01 15.00 45 675.0 6.00 100 7.64 0.004 0.004 371^ 051126 Fulton and Church 11/26/01 15.00 45 675.0 6.00 100 7.64 0.004 0.004 3724 061126 Warren and North End 11/26/01 14.30 45 643.5 3.00 100 3.82 <LOD 0.004 3725 071126 West Street and Warren 11/26/01 14.30 45 643.5 4.00 100 5.10 <LOD 0.004 3731 081126 Gateway Plaza___________________ 11/26/01 15.00 45 675.0 3.00 100 3.82 <LOD 0.004 3732 091126 South End Avenue and Albany_______ 11/26/01 14.90 45 670.5 2.00 100 2.55 <LOD 0.004 3733 101126 West and Albany__________________ 11/26/01 15.00 45 675.0 3.00 100 3.82 <LOD 0.004 3734 111126 Rector Place by park_______________ 11/26/01 15.00 45 675.0 2.00 100 2.55 <LOD 0.004 3735 121126 3rd Place and West End and Waterside 11/26/01 15.00 45 675.0 2.00 100 2.55 <LOD 0.004 3736 131126 West end of West Thames 11/26/01 15.00 45 675.0 6.50 100 8.28 0.005 0.004 O 3726 141126 Park Place and River Terrace 11/26/01 14.30 45 643.5 5.50 100 7.01 <LOD 0.004 3727 151126 River Terrace and Chambers 11/26/01 14.30 45 643.5 4.00 100 5.10 <LOD 0.004 3728 161126 River Terrace and Warren 11/26/01 14.60 45 657.0 6.00 wo 7.64 0.004 0.004 o 3729 171126 North End and Park Place 11/26/01 14.60 45 657.0 1.00 100 1.27 <LOD 0.004 m 3730 181126 Vesey and River Terrace___________ 11/26/01 14.60 45 657.0 3.00 100 3.82 <LOD 0.004 3720 191126 Trinity Place and Thames___________ 11/26/01 15.00 45 675.0 5.00 100 6.37 <LOD 0.004 3721 201126 Vesey and West Broadway__________ 11/26/01 15.00 45 675.0 8.50 100 10.83 0.006 0.004 oJ] 3737 FB1 Field Blank 1 11/26/01 0.00 0 0.0 0.00 100 0.00 N/A N/A □0 3738 FB2 Field Blank 2 11/26/01 0.00 0 0.0 0.00 100 0.00 N/A N/A

> z ELAP ID No. 11750 Expires 12:01 AM, April 1, 2002 Analysis Method: Phase Contrast Microscopy, NIOSH Method 7400 z > Limit of Quantitation (LOQ) = 102 [Fibcr/mm^] Limit of Detection (LOD) = 7 [Fiber/mm’] c □0 Analysis Performed By: Marek Pawlik o Laboratory Director o o co o ro

NYC-WTC_000187351