Document page fragment, DEP Box 54, 2003

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.: 03-2744 New York City D.E.P. ELAP Lab Code: 11029 Analyte: FIBERS 59-17 Junction Blvd. NIOSH and AIHA Lab Code: 100273 Date Received: 3/20/03 Flushing, NY 11373 NVLAP Lab Code: 101953 Date Analyzed: 3/21/03 Batch #: 0303A589 SUMMARY OF ANALYTICAL RESULTS - PCM Site: j 114 Liberty Street, New York, NY — -~

SAMPLE # COLLECTED DESCRIPTION I LOCATION TIME(min) VOLUME(L) FIBIFIELD RESULTS(flcc) LAB#

001 Decon/ Clean Room 600 3650 41/100 0.0055 20-March A 8466

002 Right Side of Decon/ Near Stairs 600 3650 35/100 0.0047 20-March A 8467

003 Left Side of Decon/ Hallway! Access from Liberty 600 3650 13/100 0.0017 20-March Street A 8468

004 By Entrance to the Basement 600 3650 37/100 0.0050 20-March A 8469

005 Hallway/ Access from Cedar Street 600 3650 34/100 0.0046 20-March A 8470

006 FIELD BLANK 0/100 20-March A 8471

Sample Analysis by: <LOD = Less than limit of detection which is 5.5 Fibers/ 100 Fields VOID1 = H.C.P. ( High Concentration of Particles) Positive Phase Contrast Microscopy (PCM) VOID2 = Overloaded Method of Sample Preparation and Analysis: All samples analyzed in accordance with the NIOSH 7400 Method using "A" Counting Rules. Issue 2, ul4st,1994 Instrumentation: 3ula ac Iwa a Olympus PCM Model BH-2 with Walton-Beckett Graticule (100um field diameter). Laboratory Director Report Date: March 21, 2003 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 JLC's 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 23 of 24

NYC-WTC 000131988