Chain of custody form, 21 West Street, Nov 2001

NYC 9/11 Public Portal Document FEB-28-2002 THU 11 12 AM CLOSINGS ® ROSE FAX NO. 212 210 6724 P. 25/42

JLC ENVIRONMENTAL CONSULTANTS, INC. • 200 Park Avenue South, Suite 1001, New York, New York 10003 Phone: (212) 420-8119 Fax; (212) 420-6092 project No.: 01-2069002 " Prrse Assoolatos Il7c. ELAP Lab Code: 11029 Analyte: FIi3EFt8 !• PO) M4Ctjson Ave. Cth Flour NIC8H anti AIHA Lab Coge: 100273 L)ate Received: 10/15/01 • Now York, NY 10016 NVLAP Lab Code: 101963 Date Analyzed: t oft atol t3atch>+!: O110A741 4 SUMMARY OF ANALYTICAL RESULTS Site: 21 West Street, New York, NY _.

$A!MPLE # ..'. COLLECTED DESCRIPTION I LOCATION 11ME(min} VOLUME([) FiB/FIELD RESULTS(Hcc) LAD 0

D19 Ambient/ 5111Floor/ In Ftuum 5N/ At the Bedroom 90 13t3b 6/100 _____ 12.0otcher section Beside the Window A7e31

Oda Ambient/ 5th Floor/ Contort At the North Section 90 1385 4/100 0.001 sl; 12.Oolobsr of the Corridor 4•, A 7632

021 Ambient/ In the Lobby/ Next to the Mailroom 90 1385 3/100 dt11 12October A 7533

022 Ambianll In the Lot)by/ Next to the Gym 90 1305 4!100 O.QQ't 12•t]rAobor A 7534

5`v 023 Ambient! At the North Section of the PH Corridor 90 1385 5/100 0. 0 • 1 .Oc1ubr A 7sd

• 024 Ambient/ Al the South Section of the PH Room D 90 1385 4/100 0,001 12•O4ut,ir ,A 766

amplt An ty ixby CLOD = Less than limit of detectlon which 1e56 Fibers/ 100 Fields P'osltiva F'ruaa, i;uitfinst Mluoscopy ('IM) VtND1 = H.C.P. (Nlgfi Conoohtration of P3"liolcr.) VOID2 = Overloaded r ") M rid-9f g-irrlfJ1--P't L~tlsl] ~ttd .R31X.~15_ t '; ,sarriple4 allglyzed Ili accordance with the NIOSH 7400 Method using "A" Counting Rules, Issue 2, August 1994 l tn nhtinn:. 01yrripus POW Model t3ii•2wifh Wntton•8 clrett Graticule (mourn field diameter). tt a lwa ~l Laboratory DirPr~inr

Report Date: October 16, 2001 ' ,IW L responsible for only the fiber counts within the limitations of (ho rnsthod described as NIOSH 7400, Among other limitations, this math ,glvaG only an indox of airborne fibers and provides only an estimate of asbestos concentration. Any and all claims arising out of JLC's analyst ttp,sn sarnpies are Ibnited in recovery to the cost of analyzing samples, JLC accepts no other liability and the client agrees to seek no costs b the abo'lC.. i4 P"ego 4 of 5

NYC-WTC 000094617