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 '9-17 Junction Blvd. NIOSH and AIHA Lab Code: 100273 Date Received: 3/8/2003 ushing, NY 11373 NVLAP Lab Code: 101953 Date Analyzed: 3/10/2003 Batch #: 0303A474 SUMMARY OF ANALYTICAL RESULTS - PCM Site: 114 Liberty Street, New York, NY

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

001 Prep/ Entrance Door by Liberty Street/ Outside of 750 3791.2 10/100 0.001 08-March Building A 6900

002 Prep/ Entrance Door by Liberty Street/ Inside 750 3791.2 13/100 0.002 08-March Building A 6901

003 Prep/ Clean Room Decon/ Outside Work Area 750 3791.2 9/100 0.001 08-March A 6902

004 Prep/ Entrance by the Door/ Inside Building From 750 3791.2 14/100 0.002 8-March Cedar Street Side A 6903

005 Prep/ Entrance by the Door/ Outside Building 750 3791.2 8/100 0.001 08-March From Cedar Street Side A 6904

006 FIELD BLANK 0/100 08-March A 6905

Sample Analysiy: <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) VOID2 = Overloaded Method of Sample Preparation and Analysis: All samples analyzed in accordance with the NIOSH 7400 Method using "A" Counting Rules. Issue 2, Aug st 1994 Instrumentation: 1

Olympus PCM Model BH-2 with Walton-Beckett Graticule (100um field diameter). u Mach iwala Laboratory Director Report Date: March 10, 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 3 of 4

NYC-WTC 000131940