NYC-WTC_000203017

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: 3/30/03 Flushing, NY 11373 NVLAP Lab Code: 101953 Date Analyzed: 3/30/03

SUMMARY OF ANALYTICAL RESULTS - PCM '^^o^agbi Site: 114 Liberty Street, New York, NY 'J SAMPLE# COLLECTED DESCRIPTION I LOCATION TIME(min) VOLUNIE(L) FIB/FIELD RESULTS(f/cc) LAB#

001 During/ Adjacent to the Front Entrance 600 3650.4 7/100 0.0009 29-March A 9441

002 During/ West of Decon/ Ground Floor 600 3650.4 9/100 0,0012 29-March A 9442

003 During/ Inside the Clean Room of the Decon 600 3650.4 7/100 00009 29-March A 9443

004 During/ At the Back Entrance Leading to the Main 600 3650.4 5/100 00007 29-March Back Exit A 9444

005 During/ East of the Decon/ Adjacent to the 600 3650.4 6/100 0.0008 29-March Staircase/ Ground Floor A 9445

006 FIELD BLANK 0/100 29-March A 9446

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,

Instrumentation: ^chhiwala Gul^ Olympus PCM Model BH-2 with Walton-Beckett Graticule (100um field diameter). Laboratory Director Report Date: April 1. 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 45 of 46

CITY_DEP_WORBY_CANNATA_SUBP_000036232

NYC-WTC_000203017