PCM Air Sample Analysis Summary for WTC, March 2002

NYC 9/11 Public Portal Document

J^enata (Consulting Services, Inc.

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: February 6, 2002 Client#: 101171 Work Area: N/A RCS Project #215

PCM Air Sample Analysis Summary Lab ID Client ID Sample Description Date Flow Rate Duration Volume Fibers Fields Density Fiber Cone. LOD Collected fliters/min.l [minutes] [liters] fFiber/mm^l fFiber/ccl fFiber/ccl 4974 010206 Park Place and Church 2/6/02 14.80 45 666.0 7.00 100 8.92 0.005 0.004 4975 020206 Park Place and Greenwich 2/6/02 15.00 45 675.0 5.00 100 6.37 <LOD 0.004 4976 030206 Murray and Church________________ 2/6/02 14.80 45 666.0 4.00 100 5.10 <LOD 0.004 4977 040206 Murray and Greenwich_____________ 2/6/02 14.80 45 666.0 5.00 100 6.37 <LOD 0.004 4978 050206 Fulton and Church 2/6/02 15.00 45 675.0 6.50 100 8.28 0.005 0.004 4960 060206 Warren and North End 2/6/02 14.30 45 643.5 2.00 100 2.55 <LOD 0.004 4961 070206 West Street and Warren 2/6/02 14.60 45 657.0 4.00 100 5.10 <LOD 0.004 4967 080206 Gateway Plaza___________________ 2/6/02 14.45 45 650.3 5.00 100 6.37 <LOD 0.004 4968 090206 South End Avenue and Albany_______ 2/6/02 14.45 45 650.3 4.00 100 5.10 <LOD 0.004 4969 100206 West and Albany_________________ 2/6/02 14.45 45 650.3 5.00 100 6.37 <LOD 0.004 4970 110206 Rector Place by park______________ 2/6/02 14.70 45 661.5 2.00 100 2.55 <LOD 0.004 4971 120206 3rd Place and South End and Waterside 2/6/02 14.70 45 661.5 2.00 100 2.55 <LOD 0.004 4972 130206 West end of West Thames 2/6/02 14.70 45 661.5 1.00 100 1.27 <LOD 0.004 4962 140206 Park Place and River Terrace 2/6/02 14.60 45 657.0 2.00 100 2.55 <LOD 0.004 4963 150206 River Terrace and Chambers 2/6/02 14.60 45 657.0 3.50 100 4.46 <LOD 0.004 4964 160206 River Terrace and Warren 2/6/02 14.60 45 657.0 1.50 100 1.91 <LOD 0.004 4965 170206 North End and Park Place 2/6/02 14.60 45 657.0 2.00 100 2.55 <LOD 0.004 4966 180206 Vesey and River Terrace___________ 2/6/02 14.30 45 643.5 4.00 100 5.10 <LOD 0.004 4973 190206 Trinity Place and Thames___________ 2/6/02 14.70 45 661.5 6.00 100 7.64 0.004 0.004 4979 200206 Vesey and West Broadway_________ 2/6/02 14.80 45 666.0 6.00 100 7.64 0.004 0.004 4980 FBI Field Blank 2/6/02 0.00 0 0.0 0.00 100 0.00 N/A N/A 4981 FB2 Field Blank 2/6/02 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; MW Marek Pawlik Laboratory Director

NYC-WTC_000161891