PCM Air Sample Analysis Summary for WTC, March 2002

NYC 9/11 Public Portal Document

(Consulting Senices, Inc. enata 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: J^ai^6, ^002 Client#: 101171 Work Area: N/A RCS'Project # 204. \

A PCM Air Sample Analysis Summary Lab ID Client ID Sample Description Date Flow Rate Duration Volume Fibers Fields Density Fiber Cone. LOD I Collected [liteis min.] Iminutes] {literal [Fiber/mm~] [Fiber/cc] [F.iber/cc] 4732 010126 Park Place and Church 1/26/02 14.80 45 666.0 6.00 100 7.64 0.004 ■^;).oo4! 4733 020126 Park Place and Greenwich 1/26/02 15.00 45 675.0 7.00 100 8.92 0.005^ ^.0041 4734 030126 Murray and Church 1/26/02 15.00 __ 675.0 7.00 100 8.92 - 0.005” 0.004! 4735 040126 Murray and Greenwich_____________ 1/26/02 14.80' ■ 45 666.0 4.50 100 5.73 --<LOI5:^,004' 4736 050126 Fulton and Church 1/26/02 14.80 45 666.0 3.00 JOO 3.82 —-<LOP;-W.004i 4718 060126 Warren and North End 1/26/02 14.60 45 657.0 2.00 100 2,55 ^<LOS:--0.004 4719 070126 West Street and Warren 1/26/02 14.60 45 657.0 4.00 WO 5.10 <LOB, -0.004 4725 080126 Gateway Plaza__________________ 1/26/02 14.45 45 650.3 AOO 100 5.10 ^<LO&'^0.Q04 4726 090126 South End Avenue and Albany_______ 1/26/02 14.45 45 650.3 2.00 100 2.55 ^<LOD:^0.004! 4727 100126 West and Albany_________________ 1/26/02 14.70 45 661.5 4.50 100 5.73 LCD:-W. 004 4728 110126 Rector Place by park______________ 1/26/02 14.70 45 661.5 1.00 100 1.27 <LOB:-O.004| 4729 120126 3rd Place and South End and Waterside 1/26/02 14.70 45 661.5 3^ wo 3.82 "^0.004! 4730 130126 West end of West Thames 1/26/02 14.70 45 ‘ 661.5 2.00 100 «^<LOD=--W.004 4720 140126 Park Place and River Terrace 1/26/02 14.60 45 657.0 3.00 100 3.82 <LOD: >-0.004i 4721 150126 River Terrace and Chambers 1/26/02 14.30 45 643.5 2.00 100 2.55 -^<L©D= ^0.004 i 4722 160126 River Terrace and Warren 1/26/02 14.60 45 657.0 1.00 100 1.27 ^<LQD 0.004, 4723 170126 North End and Park Place 1/26/02 14.60 45 657.0 4.00 100 5.10 x^<LeD- 0.004 i 4724 180126 Vesey and River Terrace___________ 1/26/02 14.60 45 657.0 3.00 100 3.82 --<LQD 0.004- 4731 190126 Trinity Place and Thames___________ 1/26/02 14.70 45 661.5 2.00 100 2.55 ■^<LQD 0.004 i 4737 200126 Vesey and West Broadway_________ 1/26/02 14.80 45 666.0 9.00 100 11.46 0.007- 0.004 i 4738 FBI Field Blank 1/26/02 0.00 0 0.0 0.00 100 _g^ N/A N/AI 4739 FB2 Field Blank 1/26/02 0.00 0 0.0 0.00 100 0.00 N/A N/A I

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 Laboratorv' Director

NYC-WTC_000161880