PCM Air Sample Analysis Summary for WTC, March 2002

NYC 9/11 Public Portal Document

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lR.enata Ser\'ices, Inc. onsulting 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: January 31,2002 Client#: 101171 Work Area: N/A RCS Project #209

PCM Air Sample Analysis Summar^^ Lab ID Client ID Sample Description Date Flow Rate Duration Volume Fibers Fields Density Fiber Cone. LOD Collected [liters/min.l [minutes] (litersi [Fiber/mm*] [Fiber/cc] [Fiber/ccl 4842 010131 Park Place and Church 1/31/02 14.80 45 666.0 5.50 100 7.01 <LOD 0.004 4843 020131 Park Place and Greenwich 1/31/02 14.80 45 666.0 6.00 100 7.64 0.004 0.004 4844 030131 Murray and Church________________ 1/31/02 14.80 45 666.0 3.00 100 3.82 <LOD 0.004 4845 040131 Murray and Greenwich_____________ 1/31/02 14.80 45 666.0 6.00 100 7.64 0.004 0.004 4846 050131 Fulton and Church 1/31/02 15.00 45 675.0 3.00 100 3.82 <LOD 0.004 4828 060131 Warren and North End 1/31/02 14.30 45 643.5 3.00 100 3.82 <LOD 0.004 4829 070131 West Street and Warren 1/31/02 14.60 45 657.0 4.50 100 5.73 <LOD 0.004 4835 080131 Gateway Plaza___________________ 1/31/02 14.45 45 650.3 4.00 100 5.10 <LOD 0.004 4836 090131 South End Avenue and Albany________ 1/31/02 14.70 45 661.5 4.00 100 5.10 <LOD 0.004 4837 100131 West and Albany__________________ 1/31/02 14.70 45 661.5 5.00 100 6.37 <LOD 0.004 4838 110131 Rector Place by park______________ 1/31/02 14.70 45 661.5 4.00 100 5.10 <LOD 0.004 4839 120131 3rd Place and South End and V\feterside 1/31/02 14.70 45 661.5 2.00 100 2.55 <LOD 0.004 4840 130131 West end of West Thames 1/31/02 14.70 45 661.5 4.00 100 5.10 <LOD 0.004 4830 140131 Park Place and River Terrace 1/31/02 14.30 45 643.5 4.00 100 5.10 <LOD 0.004 4831 150131 River Terrace and Chambers 1/31/02 14.60 45 657.0 3.50 100 4.46 <LOD 0.004 4832 160131 River Terrace and Warren 1/31/02 14.60 45 657.0 3.00 100 3.82 <LOD 0.004 4833 170131 North End and Park Place 1/31/02 14.60 45 657.0 2.00 100 2.55 <LOD 0.004 4834 180131 Vesey and River Terrace___________ 1/31/02 14.30 45 643.5 58.00 100 73.89 0.044 0.004 4841 190131 Trinity Place and Thames___________ 1/31/02 14.70 45 661.5 8.00 100 10.19 0.006 0.004 4847 200131 Vesey and West Broadway__________ 1/31/02 14.80 45 666.0 6.00 100 7.64 0.004 0.004 4848 FBI Field Blank 1/31/02 0.00 0 0.0 0.00 100 0.00 N/A N/A 4849 FB2 Field Blank 1/31/02 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 IM Laboratory Director

NYC-WTC_000161886