NYC-WTC_000187333

NYC 9/11 Public Portal Document

IR-enata ^^onsulting Services, Inc.

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 31, 2002 Client#; 101171 Work Area; N/A RCS Project #209

PCM Air Sample Analysis Summary Lab ID Client ID Sample Description Date Flow Rate Duration Volume Fibers Fields Density Fiber Cone. LOD Collected [lilers/min.] [minutes] [liters] [Fiber/mm^l [FiberZee] [Fiber/cc] 4^42 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 050121 Fulton and Church________________ _ 1/31/02 15.00 45 675.0 3.00 100 3.82 <LOD 0.004 4828 060134 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 080121 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 Ipo 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 122121 3rd Place and South End and Waterside 1/31/02 14.70 45 661.5 2.00 100 2.55 <LOD 0.004 4840 130121 West end of West Thames 1/31/02 14.70 45 661.5 4.00 100 5.10 <LOD 0.004 O 1^ 4832 nom Park Place and River Terrace 4831 150131 River Terrace and Chambers 1/31/02 1/31/02 14.30 14.60 45 45 643.5 657.0 4.00 3.50 100 100 5.10 4.46 <LOD <LOD 0.004 0.004 o 4832 160131 River Terrace and Warren 1/31/02 14.60 45 657.0 3.00 100 3.82 <LOD 0.004 m 1/31/02 45 4833 170131 North End and Park Place 14.60 657.0 2.00 100 2.55 <LOD 0.004 4834 180131 Vesey and River Terrace____________ 1/31/02 14.30 45 643.5 58.00 122 73.89 0.044 0.004 o 4841 190131 Trinity Place and Thames ________ 1/31/02 14.70 45 661.5 8.00 100 10.19 0.006 0.004 J] 4847 202121 Vesey and West Broadway _______ 1/31/02 14.80 45 666.0 6.00 100 7.64 0.004 0.004 □0 Field Blank 1/31/02 0.00 0 0.0 0.00 100 4848 FB1 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 > z ELAP ID No. 11750 Expires 12:01 AM, April 1, 2002 Analysis Method: Phase Contrast Microscopy, NIOSH Method 7400

s c □0 Limit of Quantitation (LOQ) = 102 [Fiber/mm^] Limit of Detection (LOD) = 7 [Fiber/mm"]

1"° o Analysis Performed By: o Marek Pawlik o Laboratory Director o ro CD <D 00 CD

NYC-WTC_000187333