Chain of custody form, 21 West Street, Nov 2001

NYC 9/11 Public Portal Document FEB-29-2002 THU 1102 AM CLOSINGS 0 ROSE FAX NO. 212 210 6724 P. 07/42

JLC ENVIRONMENTAL CONSULTANTS, INC. York, New York 10003 200 Park Avenue South, Suite 1001, New Phone (2.12)420-8119 Fax (212) 420-6092 Proisct No.: 01.2 003 FLAP Lab Code: 11.029 Anaiyte; FIBERS ' Rays Aasociataa Ino. Mato R000tvod: i011oi2001 NIOSM and AIHA LADS Code: 100273 200 Madlean Ave 5th Floor Data Analyzed: 10/19/2001 ► tdVLAP Lab Code: 101953 "dsw,Ynik, NY 10015 Batchil: d11CA"t SUMMARY OF ANALYTICAL RESULTS Site: .. w _II _T. II 21 West Street, Now York, NY ,__

13!dMl"t TIME(min) Vtsi t1ML¢) FIB/FIELD RESULTS(f/cc) C19LLACT0 DESCRIPTION I LOCATION 1, f/

120 I846 3/100 o.otai~LO 001 Ambient! PH Floor! PH D in the North section at

A 8042

120 1846 21100 <0A01<t_C?]D 002 Ambient! PH Floor! Hallway Between PH E and 1t Uctot>ef pti 0 A 8043

120 1846 2/100 {0.001<LOD ptyg Arnblant/ 27th Floor! Room 27 B at the North "~ 104 er Section of The Living Room 1t 5044

120 1840 31100 a0.001 <LC7T] 004 Ambient/ 271h Floor! Hallway Between Rms 27 D 16t outer and 27 E A 8045

120 1846 31100 <0.001<LOD Ambient! 22nd Floor/ Rm 22E1 At the North ~Q-Gh1~aUer Section of the Living Roorn A 9048

120 1846 21100 QJQiQQ 00 Ambient! 22nd Floor! Hallway Between Apt. 2213 1B-fi, clot and 22 H A

{LOP = Less than limll of detection which Is 5.5 Fibers/ 100 Fields Mo1yeIar.. voID1 - H.c.P, ( High concentration of Pwtirlax) positive Phase Contrast MioroaGopy (PCM) VOIt72 = Overloaded ' FLsn rand Analugj~; `' Mathod using 'A" Counting Rules, Issue 2, Augustl~4 Ali safttple~s analysed In bccordenoe with the NIOSH 7400 C ' . t,1~ ~. (t 'SlJlrt@t}t;♦tlnit: ' UO t ac Iwa a oiptspus P+CM Model 1311.2 with Welton-Beckett Greticule (100um field diameter). Laboratory Director Report Date: October 23, 2001 this JLC is respomble for only the fiber counts within the limitations of the method described as NIOSH 7400. Among other limitatons, out of prevldoc only an eatimala of stahFstns concentration. Any and all claims arising rriethad gives only en Index of airborne fiberm and analyzing samples, JLC aocopts no other liability and the oilant agrees recover/ to the cost of alu'a analysis of these samples are limited In toaseic no coela beyond the above. F Page1of5

NYC-WTC 000094599