PCM Air Sample Analysis Summary for WTC, March 2002

NYC 9/11 Public Portal Document

(Consulting Services, Inc.

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

Certificate of Analysis Client: Riverpoint, Inc Project Location: WTC, NYC Analysis Date: January 25, 200: Client#: 101171 Work Area: N/A RCS Project # 203

PCM Air Sample Analysis Summary Lab ID Client ID Sample Description Date Flow Rate Duration X’olume Fibers Fields Density Fiber Cone. LOD Collected (liters min.) (minutes] [liters] [Fiber/mm‘] [Fiber/cc] 4710 010125 Park Place and Church 1/25/02 15.00 45 675.0 J^O 100 15.29 0.009 ^0.004 4711 020125 Park Place and Greenwich 1/25/02 14.80 45 666.0 /too 100 7.64 0.004^ 0.0041 4712 030125 Murray and Church______ 1/25/02 14.80 45 666.0 / ASO 100 5.73 <100-^.004 i 4713 040125 Murray and Greenwich_____________ 1/25/02 15.00 45 675/ 3.00 100 3.82 <LOI> ^0.0041 4714 050125 Fulton and Church 1/25/02 15.00 45 67/0 2.00 100 2.55 <00.^0.004; 4696 060125 Warren and North End 1/25/02 14.60 45 “6^ 4.00 100 5.10 <LOD-^0.004~i 4697 070125 West Street and Warren 1/25/02 14.60 45 5.00 100 6.37 <LOD ^0.004! 4703 080125 Gateway Plaza__________________ 1/25/02 14.45 45 /650.3 3.00 100 3.82 <LOD-'^.004 4704 090125 South End Avenue and Albany_______ 1/25/02 14.45 45y 650.3 £00 100 5.10 <LOD. ^0.0041 4705 100125 West and Albany_________________ 1/25/02 14.70 661.5 2.00 100 2.55 <LOD' '"0.004 i , 4706 110125 Rector Place by park______________ 1/25/02 14.70 661.5 £00 100 3.82 <LOD> ^0.0041 4707 120125 3rd Place and South End and Waterside 1/25/02 14.70 45 661.5 £00 100 2.55 <LODz^0.004r 4708 130125 West end of West Thames 1/25/02 14.70 45 661.5 £00 100 2.55 <LOD /0.Q04 4698 140125 Park Place and River Terrace 1/25/02 14.60 657.0 2.00 100 2.55 <LOD> ^0.0041 4699 150125 River Terrace and Chambers 1/25/02 14.60 45 657.0 1.00 100 1.27 <LOD.>^.004! 4700 160125 River Terrace and Warren 1/25/02 14.60 657.0 2.00 100 2.55 <LOD. >^0.0041 4701 170125 North End and Park Place 1/25/02 14.60^ 45 657.0 2.00 100 2.55 <LOD^,004! 4702 180125 Vesey and River Terrace___________ 1/25/02 14.30 45 643.5 £00 100 5.10 <LOD.^'004j 4709 190125 Trinity Place and Thames___________ 1/25/02 14.7(8 45 661.5 5.00 100 • 6.37 <LOD-Tr.004 4715 200125 Vesey and West Broadway_________ 1/25/02 14.80 45 666.0 £00 100 7.64 0.004 £004 <716 Pfcl Field Blank 1/25/02 0.00 0 0.0 £00 100 0.00 N/A N/A 4717 1^82 Field Blank 1/25/02 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: AU Marek Pawlik Laboratoiy Director

NYC-WTC_000161879