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.: 01-2089 Rose Associates ELAP Lab Code: 11029 Analyte: FIBERS 200 Madison Avenue NIOSH and AIHA Lab Code: 100273 Date Received: 9/17/01 New York, NY 10016-3901 NVLAP Lab Code: 101953 Date Analyzed: 9/18/01 Batch#: 0109A629 SUMMARY OF ANALYTICAL RESULTS Site: L 21 West Street, New York, NY

SAMPLE # COLLECTED DESCRIPTION / LOCATION TIME(min) VOLUME(1) FIB/FIELD RESULTS(f/cc) LAB #

007 FIELD BLANK 0/100 17-September A 6229

008 FIELD BLANK 0/100 17-September A 6230

Sample Analysis by: <LOD = Less than limit of detection which is 5.5 Fibers/ 100 Fields Positive Phase Contrast Microscopy (PCM) VOID1 = H.C.P. ( High Concentration of Particles) V01D2 = 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: Al aver F 4ely Olympus PCM Model BH-2 with Walton-Beckett Graticule (100um field diameter). Laboratory Director Report Date: September 18, 2001 JLC is responsible for only the fiber counts within the limitations of the method described as NIOSH 7400. Among other limitations, this meth gives only an index of airborne fibers and provides only an estimate of asbestos concentration. Any and all claims arising out of JLC's analysi 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 b the above. Page 2 of 2

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