Chain of custody form, 21 West Street, Nov 2001

NYC 9/11 Public Portal Document

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.: 01-2089003 Rose Associates Inc. ELAP Lab Code: 11029 Analyte: FIBERS 200 Madison Ave. 5th Floor NIOSH and AIHA Lab Code: 100273 Date Received: 10/19/2001 New York, NY 10016 NVLAP Lab Code: 101953 Date Analyzed: 10/19/2001 Batch #: 011OA792 SUMMARY OF ANALYTICAL RESULTS Site: L 21 West Street, New York, NY

SAMPLE # COLLECTED DESCRIPTION / LOCATION TIME(min) VOLUME(I) FIB/FIELD RESULTS(f/cc) LAB#

013 Ambient/ 11th Floor/ Apt. I1E/ At the North 120 1846 2/100 <0.001<LOD Section of e Living Room A 8054

014 Ambient/ 11th Floor/ Hallway Between Apt. 11H 120 1846 2/100 <0.001<LOD 18-October and Apt. 11J A 8055

015 Ambient/ 9th Floor! Apt. 9C At the North Section o 120 1846 2/100 <0.001<LOD 18-October the Living Room A 8056

016 Ambient/ 9th Floor/ Hallway Between Apt. 9H and 120 1846 6/100 0.002 18-October 9J A 8057

017 Ambient/ 8th Floor/ Apt. 8E/ At the North Section 120 1846 5/100 0.001<LOD 18-October of the Living Room A 8058

018 Ambient/ 8th Floor/ Hallway Between Apt. 8H and 120 1846 7/100 0.002 18-October 8J A 8059

Sample Analysis s by: <LOD = Less than limit of detection which Is 5.5 Fibers/ 100 Fields Positive Phase Contrast Microscopy (PCM) VOIDI = H.C.P. (High Concentration of Particles) VOID2 = Overloaded Method of Sample Preparation and Analysis: All samples analyzed In accordance with the NIOSH 7400 Method using "A" Counting Rules. Issue 2, August 1994 Instrumentation: Olympus PCM Model BH-2 with Walton-Beckett Graticule (100um field diameter). GU am ac Iwa a Laboratory Director Report Hate: October 23, 2001 JLC Is responsible for only the fiber counts within the limitations of the method described as NIOSH 7400. Among other limitations, this method gives only an index of airborne fibers and provides only an estimate of asbestos concentration. Any and all claims arising out of JLCs analysis of these samples are limited in recovery to the cost of analyzing samples. JLC accepts no other liability and the client agrees to seek no costs beyond the above. Page 3 of 5

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