NYC-WTC_000176185

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 01-2094 Insignia Residential Group, Inc ELAP Lab Code 11029 Analyte FIBERS 675 Third Avenue NIC?” Lode 100273 Date Received 9/20/01 New York NY 10017 NVLAP Lab Cooe 101953 Dale Analyzed 9/20'01 Batch ff: 0109A643 SUMMARY OF ANALYTICAL RESULTS Site i^ 100 John Street, New York, NY j

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

031 Ambient/ 19th Floor/ Hallway 60 923 52/100 0 028 13-SepteiTiber A 6348

032 Ambient/ Apartment #1911/ Foyer Area 60 923 7/100 0 004 19-September A 6349

033 AmbienV 18th Floor/ Hallway 60 923 10/100 0005 19-Seplember A 6350

034 Ambient/ Apartment #1812/ Foyer/ Living Room 60 923 5/100 0 003<LOD 19-September Area A 6351

035 Ambient/ 17th Floor/ Hallway 60 923 8/100 0,004 19-September A 6352

036 Ambient/ Apartment #1705/ Foyer Area 60 923 70/100 0 037 19-September A 6354

Sample Analysis by <LOD = Less than limit of detection which is 5 5 Fibers/100 F-elds 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, August 1994

Instrumentation Al wanner Olyrripus PCM Model BH-2 with Waiton-BacKeti Graticule (100um field diameter) Laboratory Director Report Date September 20, 2001 JLC IS responsible for only the Fiber counts within the limitations of the method descnbed 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 ansing out of JLC's analysis of these samples are limited in recovery to the cost of analyzing samples JLC accepts no other liabilify and the client agrees to seek no costs beyond the above Page 6 of 8

CONFIDENTIAL, CITY_21MC100_009512809 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000176190