NYC-WTC_000187310

Z z 1. ./ J o o S co o I o ; 1 u o c o I CT 00 lR.enata C-onsui Services, Inc. o' o 10 u o o 304 Edgemont Terrace Teaneck NJ ,66 201 692 7967 fax 201 678 1789 p- 03

D Certificate bl Analysis o o Project Location: WTC, NYC Analysis Date: December 17, 2001 c Client; Riverpoint, Inc 3 Client#: 101171 Work Area: N/A , RCS Project# 182 CD

PCM Air Sample Ai alysis Summary Lab ID Client ID Sample Description Date Flow ate Duration Volume Fibers Fields Density Fiber Cone, LOD Collected niters/ linj [minutes] [liters] [Fiber/mmj [Fiber/cc] [Fiber/cc] 011217 Parti Place and Church 12/17/01 (4.60 45 657.0 7.00 100 8.92 0.005 0.004 4234 021217 Park Place and Greenwich 12/17/01 Itso 45 666.0 3.00 100 3.82 <LOD 0.004 4240 031217 Murray and Church 12/17/01 14.30 45 643.5 4.00 100 5.10 <LOD 0.004 Murray and Greenwich 12/17/01 14.80 45 666.0 5.00 100 6.37 <LOD 0.004 Fulton and Church 12/17/01 14.80 45 666.0 10.50 100 13.38 0.008 0.004 4241 061217 Warren and North End 12/17/01 "Rso 45 643.5 3.50 100 4.46 <LOD 0.004 4242 071217 West Street and Warren 12/17/01 -1160 45 657.0 4.00 100 5.10 <LOD 0.004 4248 081217 Gateway Plaza___________________ 12/17/01 14.45 45 650.3 0.00 100 0.00 <LOD 0.004 091217 South End Avenue and Albany________ 12/17/01 "Szo 45 661.5 2.00 100 2.55 <LOD 0.004 1250 101217 West and Albany__________________ 12/17/01 45 650.3 5.00 100 6.37 <LOD 0.004 4251 111217 Rector Place by park______________ 12/17/01 j to J 45 661.5 4.00 100 5.10 <LOD 0.004 4^ 121217 3rd Place and South End and Waterside 12/17/01 14.45 45 650.3 5.50 100 7.01 <LOD 0.004 4253 131217 West end of West Thames 12/17/01 14.70 45 661.5 6.00 100 7.64 0.004 0.004 4243 141217 Park Place and River Terrace 12/17/01 ,14,60 45 657.0 2.00 100 2.55 <LOD 0.004 151217 River Terrace and Chambers 12/17/01 ■14.60 45 657.0 4.00 100 5.10 <LOD 0.004 161217 River Terrace and Warren 12/17/01 14.30 45 643.5 4.00 100 5.10 <LOD 0.004 4246 171217 North End and Park Place 12/17/01 1'4.60 45 657.0 4.00 wo 5.10 <LOD 0.004 4^ 181217 Vesey and River Terrace___________ 12/17/01 14.30 45 643.5 2.00 100 2.55 <LOD 0.004 4237 191217 Trinity Place and Thames___________ 12/17/01 14-80 45 666.0 6.00 100 7.64 0.004 0.004 423^ 201217 Vesey and West Broadway__________ 12/17/01 14-80 45 666.0 4.00 100 5.10 <LOD 0.004 4254 FBI Field Blank 1 ___________________ 12/17/01 Too 0 0.0 0.00 100 0.00 N/A N/A 4255 FB2 Field Blank 2 12/17/01 0-00 0 0.0 0.00 100 0.00 N/A N/A O

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I K ELAP ID No. 11750 Expires 12:01 AM, April 1,2002 Analysis Method: Phase Contrast Microscopy, NIOSH Method 7400 N3 Limit of Quantitation (LOQ) = 102 [Fiber/mml Limit of Detection (LOD) = 7 [Fiber/mm^] ,i ! o o Analysis Performed By; d-JJf I

?!> i o o Marek Pawlik N3 Laboratory Director O', O', co CD