PCM Air Sample Analysis Summary for WTC, March 2002

NYC 9/11 Public Portal Document

(✓onsuliing Services, Inc. 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 12, 2002 Client#: 101171 Work Area: N/A RCS Project # 194

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.l [minutes] [litersi fFiber/mm^l [Fiber/cc] [Fiber/ccl 4512 010112 Park Place and Church 1/12/02 14.80 45 666.0 12.00 100 15.29 0.009 0.004 4513 020112 Park Place and Greenwich 1/12/02 14.80 45 666.0 3.00 100 3.82 ~ <LOD 0.004 4514 030112 Murray and Church________________ 1/12/02 15.00 45 675.0 4.50 WO 5.73 <LOD 0.004 4515 040112 Murray and Greenwich_____________ 1/12/02 14.80 45 666.0 6.00 .100 7,64 // 0.004 0.004 4516 050112 Fulton and Church 1/12/02 14.80 45 666.0 3.50 100 4.46 <LOD 0.004 4498 060112 Warren and North End 1/12/02 14.60 45 657.0 2.00 100 2.55 <LOD 0.004 4499 070112 West Street and Warren 1/12/02 14.60 45 657.0 8.50 100 10.83 0.006 0.004 4505 080112 Gateway Plaza___________________ 1/12/02 14.45 ____ 45 650.3 2.00 100 2.55 <LOD-- 0.004 4506 090112 South End Avenue and Albany_______ 1/12/02 14.45 45 650.3 5.00 100 6.37 <LOD.-0004 4507 100112 West and Albany__________________ 1/12/02 14.70 ____ 45 661.5 3.50 100 4.46 <LOD " 0.004 4508 110112 Rector Place by park •_____________ 1/12/02 14.70 45 661.5 4.00 WO 5.10 <LOD.^0 004 4509 120112 3rd Place and South End and Waterside 1/12/02 14.70 45 661.5 -LOO wo 6.37 <LODz - 0.004 4510 130112 West end of West Thames 1/12/02 14.70 45 661.5 2.00 wo 2.55 <LOD 0.004 4500 140112 Park Place and River Terrace 1/12/02 14.30 45 643.5 2.00 100 2.55 <LOD.^ 0.004 4501 150112 River Terrace and Chambers 1/12/02 14.60 45 657.0 5.00 wo 6.37 <LOD " 0.004 4502 160112 River Terrace and Warren 1/12/02 14.60 45 657.0 -LOO 100 2.55 <LO[> 0.004 4503 170112 North End and Park Place 1/12/02 14.30 ____ 45 643.5 5.00 wo 6.37 <LOD- ^‘0.004 4504 180112 Vesey and River Terrace___________ 1/12/02 14.30 45 643.5 -LOO JOO 2.55 <LO[> " 0.004 4511 190112 Trinity Place and Thames___________ 1/12/02 14.45 ____ 45 650.3 -LOO wo 7.64 0.005 ,0.004 4517 200112 Vesey and West Broadway_________ 1/12/02 14.80 ____ 45 666.0 4.00 wo 5.10 <LOD 0.004 4518 FBI Field Blank 1/12/02 0.00 0 0.0 -LOO wo 0.00 N/A N/A 4519 FB2 Field Blank 1/12/02 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_000161875