NYC-WTC_000176185

NYC 9/11 Public Portal Document

JLC ENVIRONMENTAL CONSULTANTS, INC 200 Park Avenue South, Suite 1001, New York, NewYo'^k 10003 Phone (212) 420-8119 Fax (212) 420-6092 Project No 01-2094 Insignia Residential Group, 'nc El AP Lab Code *1029 Analyte FIBERS 675 Third Avenue NIL L -i end A!HA Lcb Code 100273 Date Received 9/20/01 New York, NY 10017 NVLAP Lab Code 101953 Date Analyzed, 9/20/01 Batch #: 0109A643 SUMMARY OF ANALYTICAL RESULTS Site: lOOJohn Street, New York, NY

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

001 Ambient/ Lobby/ @ Entrance Doors 60 923 8/100 0,004 19-September A 6318

002 Ambient/ Lobby/ In Lounge Area 60 923 5/100 0.003<LOD 19-September A 6319

003 Ambient/ Apartment #2007/ Kitchen/ Living Room 70 1077 7/100 0^ 19-SeDtember Area A 6320

004 Ambient/ 20th Floor/ Hallway 70 1077 4/100 0 002<LOD 19-Seplember A 6321

005 Ambient/ 29th Floor/ Hallway 70 1077 8/100 0004 19-September A 6322

006 Ambient/ Apartment #2903/ Foyer Area 60 923 4/100 0.002<LOD 19-September A 6323

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, August 1994

Instrumentation Al Wallner Olympus PCM Model BH-2 viith Walton-Seckett Graticuie (lOOum field diameter) Laboratory Director

Report Date: Sepiember 20, 2001 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 ansing out of JLC's analysis of these samples are limited in recovery to the cost of analyzing samples JLC accepts no other lability and the client agrees to seek no costs beyond the above Page 1 of 8

CONFIDENTIAL, CITY_21MC100_009512804 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000176185