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 Grtxjp, Inc ELAP Lab Code 11029 Analyte FIBERS 675 Third Avenue NICO'-' .Ind ,A'!;.A Lzb Code 130273 Date Received 9/2C/C1 New York, NY 10017 NVLAP Lab Code 101953 Date Analyzed 9/20/01 Batch #: 0109A643 SUMMARY OF ANALYTICAL RESULTS Site r 100 John Street, New York, NY

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

019 Ambient/ 26th Floor/ Hallway 60 923 4/100 0 002<LOD IS-September A 6336

020 Ambient/Apartment #2601/ Foyer/ Living Room 60 923 3/100 0.002<LOD 19-September Area A 6337

021 Ambient/ 25th Floor/ Hallway 60 923 65/100 0 035 19-September A 6338

022 Ambient/ Apartment #2503/ Foyer Area 60 923 17/100 0 009 19-September A 6339

023 Ambient/ 24th Floor/ Hallway 60 923 5/100 0 003<LOD 19-September A 6340

024 Ambient/ Apartment #2403/ Foyer/ Living Room 60 923 14/100 0 007 19-September Area A 6341

Sample Analysis by <LOD = Less than limit of detection which is 5 5 Fibers/100 Fields vol DI = 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 & V '

Instrumentation Al Wallner Olympus PCM Model BH-2 v.'ith Walton-BecKett Graticule (lOOum fj;id diameter) Laboratory'Director Report Date September 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 liability and the client agrees to seek no costs beyond the above Page 4 of 8

CONFIDENTIAL, CITY_21MC100_009512807 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000176188