PCM Air Sample Analysis Summary for WTC, March 2002

NYC 9/11 Public Portal Document

(Consulting Services, Inc. X enata 304 Edgemont Terrace Teaneck NJ 07666 201 692 7967 fax 201 678 1789 \ Z '''

Certificate of Analysis Client: Riverpoint, Inc Project Location: WTC, NYC Analysis'D^e: January''^, 2002 Client#: 101171 Work Area: N/A RCS Project # 202

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.] [minutes] [liters] [Fiber/mm^] [Fiber/ccl [Fiber/ccl 4688 010124 Park Place and Church 1/24/02 15.00 45 675.0 6.00 100 7.64 0.004^0.004 4689 020124 Park Place and Greenwich 1/24/02 15.00 45 675.0 3.50 100 4.46 <LOD, ^0.004 4690 030124 Murray and Church________________ 1/24/02 15.00 45 675.0 10.00 100 12.74 0.007X0.004 4691 040124 Murray and Greenwich_____________ 1/24/02 14.80 45 666.0 4.00 100 5.10 <LOD' -"0.004 4692 050124 Fulton and Church 1/24/02 14.80 45 666.0 2.00 100 2.55 <LOD- ^^0^ 4674 060124 V\ferren and North End 1/24/02 14.30 45 643.5 3.00 100 3.82 <100^ 0.004 4675 070124 West Street and Warren 1/24/02 14.60 45 657.0 7.00 100 8.92 0.005 0.004 4681 080124 Gateway Plaza___________________ 1/24/02 14.45 45 650.3 3.00 100 3.82 <LOD- ^0.004 4682 090124 South End Avenue and Albany________ 1/24/02 14.70 45 661.5 2.00 100 2.55 <LO[y 0.004 4683 100124 West and Albany____________________ 1/24/02 14.70 45 661.5 3.00 100 3.82 <LOD- 0.004 4684 110124 Rector Place by park______________ 1/24/02 14.70 45 661.5 2.00 100 2.55 <LOD> -^0.004 4685 120124 3rd Place and South End and Waterside 1/24/02 14.70 45 661.5 3.00 100 3.82 <LOD< ^0.004 4686 130124 West end of West Thames 1/24/02 14.70 45 661.5 3.00 100 3.82 <LO[> 22^004 4676 140124 Park Place and River Terrace 1/24/02 14.60 45 657.0 2.00 100 2.55 <LOCP ^0.004 4677 150124 River Terrace and Chambers 1/24/02 14.60 45 657.0 3.00 100 3.82 <LODz'^0.004 4678 160124 River Terrace and Warren 1/24/02 14.60 45 657.0 2.00 100 2.55 <LOD- ^.0.004 4679 170124 North End and Park Place 1/24/02 14.30 45 643.5 1.00 100 1.27 <LQ[>- 4680 180124 Vesey and River Terrace___________ 1/24/02 14.60 45 657.0 4.50 100 5.73 <LOa 0.004 4687 190124 Trinity Place and Thames___________ 1/24/02 14.45 45 650.3 4.00 100 5.10 <LOCP ''0.004 4693 200124 Vesey and West Broadway__________ 1/24/02 14.80 45 666.0 3.00 100 3.82 <LOD. ^.004 4694 FBI Field Blank 1/24/02 0.00 0 0.0 0.00 100 0.00 N/A N/A 4695 FB2 Field Blank 1/24/02 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_000161878