PCM Air Sample Analysis Summary for WTC, March 2002

NYC 9/11 Public Portal Document

lR.enata dzonsulting Services, Inc.

304 Edgemont Terrace Teaneck NJ 07666 201692 7967 fax 201 678 1789

Certificate of Analysis Client: Riverpoint, Inc Project Location: WTC, NYC Anal luary 9, 2002 Client#: 101171 Work Area: N/A RCS

PCM Air Sample Analysis Summan' Lab ID Client ID Sample Description Date Flow Rate Duration Volume Fibers Fields Density Fiber Cone. LOD Collected fliters/min] [minutesl [litersl fFiber/mm^l fFiber/ccl fFiber/ccl 4446 010109 Park Place and Church 1/9/02 14.80 45 666.0 7.00 100 8.92 0.005 0.004 4447 020109 Park Place and Greenwich 1/9/02 14.80 45 666.0 4.00 100 5.10 <LOD 0.004 4448 030109 Murray and Church________________ 1/9/02 14.80 45 666.0 6.50 100 8.28 0.005 0.004 4449 040109 Murray and Greenwich_____________ 1/9/02 14.80 45 666.0 2.00 100 2.55 <LOD- "0.004 4450 050109 Fulton and Church 1/9/02 14.80 45 666.0/ 3.50 100 4.46 <LOD- ' 0.004 4432 060109 \/\ferren and North End 1/9/02 14.30 45' 643u6 4.00 100 5.10 <LOD' 0.004 4433 070109 West Street and Warren 1/9/02 14.60 45 65/0 3.00 100 3.82 <LOD- 0.004 4439 080109 Gateway Plaza___________________ 1/9/02 14.45 45 5/0.3 2.00 100 2.55 <LOD- ''0.004 4440 090109 South End Avenue and Albany________ 1/9/02 14.45 45 /5O.3 3.50 100 4.46 <100- " 0.004 4441 100109 West and Albany__________________ 1/9/02 14.70 45 /661.5 4.00 100 5.10 <LO[y - 0.004 4442 110109 Rector Place by park______________ 1/9/02 14.70 45 / 661.5 2.00 100 2.55 <LOD' 0.004 4443 120109 3rd Place and South End and Waterside 1/9/02 14.70 45 / 661.5 3.00 100 3.82 <LOD-''0.004 4444 130109 West end of West Thames 1/9/02 14.45 ____ 45, 650.3 4.00 100 5.10 <LOD- " 0.004 4434 140109 Park Place and River Terrace 1/9/02 14.60 4 657.0 4.00 100 5.10 <LODz - 0.004 4435 150109 River Terrace and Chambers 1/9/02 14.60 4 657.0 2.00 100 2.55 <LOD-''0.004 4436 160109 River Terrace and Warren 1/9/02 14.60 657.0 6.00 100 7.64 0.004" 0.004 4437 170109 North End and Park Place 1/9/02 14.30 5 643.5 3.00 100 3.82 <LOD--'0.004 4438 180109 Vesey and River Terrace___________ 1/9/02 14.30 5 643.5 4.50 100 5.73 <LOD''' 0.004 4445 190109 Trinity Place and Thames___________ 1/9/02 14.70 '45 661.5 6.00 100 7.64 0.004" 0.004 4451 200109 Vesey and West Broadway_________ 1/9/02 14.80 45 666.0 5.00 100 6.37 <LOD 0.004 4452 210109 Field Blank 1/9/02 0.00 0 0.0 0.00 100 0.00 N/A N/A 4453 220109 Field Blank 1/9/02 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 Laboratory Director

NYC-WTC_000161872