PCM Air Sample Analysis Summary for WTC, March 2002

NYC 9/11 Public Portal Document

^^^enata Services, Inc. onsulting 304 Edgemont Terrace Teaneck NJ 07666 201 692 7967 fax 201 678

Certificate of Analysis Client; Riverpoint, Inc Project Location: WTC, NYC \ Ar^ysisDate; January 6,2002 Client#: 101171 Work Area: N/A Y Project# 188

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.l [minutes! flitersl [Fiber/mm^l IFiber/ccl fFiber/cc] 4^ 010106 Park Place and Church 1/6/02 15.00 45 675.0 6.00 100 7.64 [b 0-004 0.004 4^ 020106 Park Place and Greenwich 1/6/02 14.80 45 666.0 4.00 100 5.10 <LOD 0.004 4^ 030106 Murray and Church________________ 1/6/02 14.80 45 666.0 5.50 100 7.01 <LOD 0.004 4367 040106 Murray and Greenwich_____________ 1/6/02 14.80 45 666.0 10.00 100 12.74 Il 0.007--"0.004 436^ 050106 Fulton and Church 1/6/02 14.80 45 666.0 3.00 100 3.82 <LOD-"1).004 4373 060106 Warren and North End 1/6/02 14.30 45 643.5 4.00 100 5.10 <LOD- T;).OO4 4374 070106 West Street and V\ferren 1/6/02 14.30 45 643.5 5.00 100 6.37 <LQD‘10.004 4^ 080106 Gateway Plaza___________________ 1/6/02 14.70 45 661.5 2.50 100 3.18 <LQD-<0.004~ 4381 090106 South End Avenue and Albany________ 1/6/02 14.45 45 650.3 5.00 100 6.37 <LOD'<0.004 4382 100106 Vlfest and Albany_______________ 1/6/02 14.70 45 661.5 4.00 100 5.10 <LOD. ^0.004 4^ 110106 Rector Place by park______________ 1/6/02 14.70 45 661.5 4.00 100 5.10 <LOcy 0.004 4^ 120106 3rd Place and South End and Waterside 1/6/02 14.70 45 661.5 2.00 100 2.55 <100-10.004 4^ 130106 West end of West Thames 1/6/02 14.70 45 661.5 4.00 100 5.10 <100,^0.004 4375 140106 Park Place and River Terrace 1/6/02 14.60 45 657.0 8.50 100 10.83 •0.006 0.004 4376 150106 River Terrace and Chambers 1/6/02 14.60 45 657.0 4.00 100 5.10 <LOD-- 0.004 4377 160106 River Terrace and Warren 1/6/02 14.60 45 657.0 4.00 100 5.10 <LOD '' 0.004 4378 170106 North End and Park Place 1/6/02 14.60 45 657.0 5.00 100 6.37 <LOD- 0.004 4379 180106 Vesey and River Terrace___________ 1/6/02 14.30 45 643.5 3.00 100 3.82 <100-" 0.004 4369 190106 Trinity Place and Thames___________ 1/6/02 14.70 45 661.5 8.00 100 10.19 0.006 0.004 4370 200106 Vesey and West Broadway_________ 1/6/02 14.80 45 666.0 12.00 100 15.29 i^/|0.009 0.004 4386 FB1 Field Blank 1 1/6/02 0.00 0 0.0 0.00 100 0.00 N/A N/A 4387 FB2 Field Blank 2 1/6/02 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 [Fibcr/mm‘]

Analysis Performed By. Marek Pawlik Laboratory Director

NYC-WTC_000161869