Chain of custody form, 21 West Street, Nov 2001

NYC 9/11 Public Portal Document FEB-28-2002 THU 11:07 AM CLOSINGS 0 ROSE FAX NO. 212 210 6724 P. 16/42

ri JLU ENVIRONMENTAL CONSULTANTS, INC. 200 Park Avenue South, Suite 1001, New York, New York 10003 Phone: (212) 420-8119 Fax: (212) 420-6092 v ` Piw1vL1 Nu.: 01-2089004 4 dare Ahshc(atas Inc ELAP Lob Code: 11029 Analyte, FISI=RS 300 Madison Avo. Uu1 i-iaor NIOSH and AIHA I.ab Code-. 100273 Date Received: 10/25/2001 Now York, NY 10016 NVLAP Lab Code: 101983 Date Analyzed: 10/28/2001 SUMMARY OF ANALYTICAL RESULTS Batch : 0110Ae24 Site + 21 West Street, New York, NY } r W _

$AMPLE # CI~}b.LECTED DESCRIPTION I LOCATION TIME(min) VOLUMEtl) FIB/FIELD RE8ULTS(Uoc)

Qti% Ambient, 20th Hoorl Apt 2081At the North 120 1848 4/100 0.001<~QR 24-Oclobsr Section of the Living Room A B310

008 Arnhient/ 20th Floor/ Haitwey Between Apt 20G 120 1846 4/100 0.Q01<LOD and 20H A 8311

009 Ambient/ 18th Floor/ Apt. 18H) At the North 120 1846 3/100 = C,0 001- 24.October Section of the Living Room A 8312. 4 ~~• ' ' ;••'• ; ,' t 0 Ainbk nit/ 18t11 Floorl Hallway Between Apt. 181 12U 1846 4/100 0A01<LOb "MCt (ir r and 18J A 0313

011 Ambient/ 14th Floor) Apt. 14G/ At the North 120 1846 11100 <00 <LOD °.,t 94-c~robf.w Section of the Living Room A 631 1

• 012 Ambient/ 14th Floor) Hallway Between Apt, 14H 120 1846 2/100 <0.001<LOD '24.October and 14J 8318 '

itirt.~ld Ann! +ii b {LOCI = Loss than limit of deLeot;on which is 5.5 Fibers/ 100 Fields PoBitiv£/ l1iaao Contrast Microscopy (PCM) VOID1 — H.C.P. (111gh Concentration or Panicles) VOID2 = Overioaded is Method of Stirflille.Pf.9garaton and Annlusts! ,f s~tmplos arislyzar! In accordance with the NIOSH 7400 Method using -A" Counting Rules. Issue 2, August 1594 iniaininlsutflsttittl ,~. __...._...._ ; c, Q ~~ „ LV., l) Olyinptts PCM Modal BH-2 wilit Walton-Beokort Grnticulo (100um field diameter). Gulam Mechiwlale ~ ia t_aboratory Dire, a Report Date: Nr►vRmhAr 8, 2001 -: JR C is responsihlr& for only the fiber counts within the iimiialions of the method described as NIOSI-I 7400. Among other limitations, this matho givos only an index cf airborne fibers end prnyirine nnly an estimate of acbastog conoet tratlan. Any and all claims arising out of JLC's analysir trieee tramples are limited i11 recovery to the cost of anaiyzing samples. JLC accepts no other liability and the client agrees to seek no the above. cash bi ,r , Page 2 of 6

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