NYC-WTC_000187527

NYC 9/11 Public Portal Document

^^^enata Services, 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: February 20, 2002 Client#: 101171 Work Area: N/A RCS Project #233

PCM Air Sample Analysis Summary Lab ID Client ID Sample Description Date Flow Rate Duration Volume Fibers Fields Density Fiber Cone. LOD Collected [liters/min.] [minutes] [liters] [Fibcr/mm'] [Fiber/cc] fFiber/ccl 5311 010220 Park Place and Church 2/20/02 14.05 45 632.3 6.00 100 7.64 0.005 0.004 5312 020220 Park Place and Greenwich 2/20/02 14.30 45 643.5 8.00 100 10.19 0.006 0.004 5313 030220 Murray and Church_________________ 2/20/02 14.30 45 643.5 9.00 100 11.46 0.007 0.004 5314 040220 Murray and Greenwich______________ 2/20/02 14.05 45 632.3 5.00 100 6.37 <LOD 0.004 5315 050220 Fulton and Church 2/20/02 14.05 45 632.3 4.00 100 5.10 <LOD 0.004 5297 060220 Warren and North End 2/20/02 14.70 45 661.5 4.00 100 5.10 <LOD 0.004 5298 070220 West Street and Warren 2/20/02 14.70 45 661.5 3.00 100 3.82 <LOD 0.004 5304 080220 Gateway Plaza_____________________ 2/20/02 15.00 45 675.0 3.00 100 3.82 <LOD 0.004 5305 090220 South End Avenue and Albany________ 2/20/02 15.00 45 675.0 3.00 100 3.82 <LOD 0.004 5306 100220 West and Albany___________________ 2/20/02 15.00 45 675.0 2.00 100 2.55 <LOD 0.004 5307 110220 Rector Place by park_______________ 2/20/02 15.00 45 675.0 1.00 100 1.27 <LOD 0.004 5308 120220 3rd Place and South End and Waterside 2/20/02 15.00 45 675.0 4.00 100 5.10 <LOD 0.004 5309 130220 West end of West Thames 2/20/02 15.00 45 675.0 5.00 100 6.37 <LOD 0.004 5299 140220 Park Place and River Terrace 2/20/02 14.70 45 661.5 3.00 100 3.82 <LOD 0.004 5300 150220 River Terrace and Chambers 2/20/02 14.70 45 661.5 6.00 100 7.64 0.004 0.004 5301 160220 River Terrace and Warren 2/20/02 14.45 45 650.3 4.00 100 5.10 <LOD 0.004 5302 170220 North End and Park Place 2/20/02 14.70 45 661.5 2.00 100 2.55 <LOD 0.004 5303 180220 Vesey and River Terrace____________ 2/20/02 14.70 45 661.5 3.00 100 3.82 <LOD 0.004 5310 190220 Trinity Place and Thames____________ 2/20/02 14.30 45 643.5 7.00 100 8.92 0.005 0.004 5316 200220 Vesey and West Broadway 2/20/02 14.05__ 45 632.3 8.00 100 10.19 0.006 0.004 5317 FB1 Field Blank 2/20/02 0.00 " 0 0.0 0.00 100 0.00 N/A N/A 5318 FB2 Field Blank 2/20/02 0.00 0 0.0 0.00 100 0.00 N/A N/A o H K ELAP ID No. 11750 Expires 12:01 AM, April 1, 2002 Analysis Method: Phase Contrast Microscopy, NIOSH Method 7400 I [\j (—1 Limit of Quantitation (LOQ) = 102 [Fiber/mm^] S O Limit of Detection (LOD) = 7 [Fiber/mm^] o I o o o to Analysis Performed By: Marek Pawlik AU cn Laboratory Director to CO OS

NYC-WTC_000187527