Chain of custody form, 21 West Street, Nov 2001

NYC 9/11 Public Portal Document FEB-28-2002 THU 11 11 AM CLOSINGS 0 ROSE FAX NO. 212 210 6724 P. 23/42

JLC ENVIRONMENTAL CONSUL I ANTS, INC. 200 Park Avenue South, Suite 1001, New York, New York 10003 Phone: (212) 420-8119 Fax: (212) 420-8092 Project No.; 01-2089002 Rose A'aaoct;itee Inc. FLAP Lab Code: 11029 Analyte: FIBERS 6170 Ma,iiean Ave. 3th Fl+.ar I4l03H aria AIHA Lap I~oae: 100273 uate Received: 10/15101 platy York, NY 10016 NVLAF Lab Code: 101053 Date Analyzed; 10116/01 Batch 0l: 0110A141 SUMMARY OF ANALYTICAL RESULTS — 21 WO t Sfreef, New York, NY I E4 KI SA COLT ECTED DESCRIPTION! LOCATION TIME(min) VOLUME(!) FIB/FIELD ft SUI-TS(flec) LAB d1

007 Ambient! 1:,ih r'Ioor/ Corridor/At thres Nurtli Jo 13i3b bl1UO 0.002 12-October Section of the Corridor A 75410

008 Ambient 15th Floor/At the South Section of the 90 1385 8/100 0 12-04tober Corridor A 7520 '(n

009 Amblent/ 10th floor/ At the North Section of tho 90 1385 7/100 2-t7ct tn;r Hallway A 7521

14 ; ArnblenV 10th Floor/ At the South eeotion of the 80 1386 8/100 0.002 t2 t7ctobr Hallway A 782:

011 Ambient/ 9th Floor/ At the North Section of the 90 1385 6/100 0,002 1 OcIc i r Hallway A 7523

012 Ambient! 9th Floor/ At the South Section of the 90 1385 5/100 0.002 1 Octcaue r Hallway A 752.41

ampltt,Anal a4 op Less than limit of detection which Is 5.5 Flbersl 100 Fields t'04MVn PI',r~r t.u,iust Micruar upy (PCM) Vr1ID1 w H.G.P. ( H!gh Concontraiton of Parttaloa) VOID2 m Overloaded d 1I 141: illi,.t+ 1'.r rt ,r tit and Aaisis: ' 'Afl aanlpti•1s ai►gl i e l In accordance with the NIOSH 7400 Method using °A' Counting Rules. Issue 2, August 1994 ~nptrus~ Qi~i,fi ~n; a ' _ cslyinNric PCM Mccdol RH-2 with Walton-Seck&i Graticule (100um Gold disilrieter). $ a5C 1 L.AbnrAtnry Director

Report Date: October 16, 2001 JLC Is resporilhle for only the fiber counts within the limitations of the method described as NIOSI'I 7400, Among gives erdy in in.lax of n6•borne fibors and provides only an estimate of asbestca concentration. Any and all claims other limitations, this moth these samples are limited In recovery to tile cost or analyzing samples. JLC aooepts no other liability and the clientarising out of JLC's anelyt i agrees to seek no costs b 11a aboyo. P 9e 2of 5

NYC-WTC 000094615