PCM Air Sample Analysis Summary for WTC, March 2002

NYC 9/11 Public Portal Document

J^enata Services, Inc. onsulting 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: March 30,2002 Client#: 101171 Work Area: N/A RCS Project # 275

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.] fminutesl flitersl fFiber/mm^l fFiber/ccl [Fiber/cc] 6206 010330 Park Place and Church 3/30/02 14.30 45 643.5 3.00 100 3.82 <LOD 0.004 6207 020330 Park Place and Greenwich 3/30/02 14.30 45 643.5 5.00 100 6.37 <LOD 0.004 6208 030330 Murray and Church_________________ 3/30/02 14.30 45 643.5 9.00 100 - 11.46 0.007 0.004 6209 040330 Murray and Greenwich______________ 3/30/02 14.30 45 643.5 3.00 100 3.82 <LOD 0.004 6210 050330 Fulton and Church_________________ 3/30/02 14.30 45 643.5 8.00 100 10.19 0.006 0.004 6193 060330 Warren and North End______________ 3/30/02 14.70 45 661.5 3.00 100 3.82 <LOD 0.004 6194 070330 West Street and Warren 3/30/02 14.70 45 661.5 1.00 100 1.27 <LOD 0.004 6200 080330 Gateway Plaza____________________ 3/30/02 15.00 45 675.0 3.00 100 3.82 <LOD 0.004 6201 090330 South End Avenue and Albany________ 3/30/02 15.00 45 675.0 4.00 100 5.10 <LOD 0.004 6202 100330 West and Albany__________________ 3/30/02 15.00 45 675.0 1.00 100 1.27 <LOD 0.004 6203 110330 Rector Place by park_______________ 3/30/02 15.00 45 675.0 2.00 100 2.55 <LOD 0.004 6204 120330 3rd Place and South End and Waterside 3/30/02 14.70 45 661.5 5.00 100 6.37 <LOD 0.004 6205 130330 West end of West Thames 3/30/02 14.70 45 661.5 2.00 100 2.55 <LOD 0.004 6195 140330 Park Place and River Terrace 3/30/02 14.70 45 661.5 0.00 100 0.00 <LOD 0.004 6196 150330 River Terrace and Chambers 3/30/02 14.70 45 661.5 4.00 100 5.10 <LOD 0.004 6197 160330 River Terrace and Warren 3/30/02 14.70 45 661.5 5.00 100 6.37 <LOD 0.004 6198 170330 North End and Park Place 3/30/02 14.70 45 661.5 3.00 100 3.82 <LOD 0.004 6199 180330 Vesey and River Terrace____________ 3/30/02 14.45 45 650.3 3.00 100 3.82 <LOD 0.004 6211 190330 Trinity Place and Thames___________ 3/30/02 14.30 45 643.5 6.00 100 7.64 0.005 0.004 6212 200330 Vesey and West Broadway__________ 3/30/02 14.05 45 632.3 7.00 100 8.92 0.005 0.004 6213 FBI Field Blank 3/30/02 0.00 0 0.0 0.00 100 0.00 N/A N/A 6214 FB2 Field Blank 3/30/02 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^] Q Limit of Detection (LOD) = 7 [Fiber/mm^] 9 Analysis Performed By: AU (X/4 Marek Pawlik Laboratory Director

NYC-WTC_000161866