NYC-WTC_000176185

NYC 9/11 Public Portal Document

JLC ENVIRONMENTAL CONSULTANTS, INC. ?00 Park Avenue South, Suite 1001, New York, New York 10CG3 Phone (212) 420-8119 Fax (212)420-6002 Project Nc 01-2094 Insignia Residential Grouo, Inc ELAP Lab Code 11029 Analyte FIBERS 675 Third Avenue NIOS’J andlode 100273 Date Received 9/20/01 NewYork, NY 10017 NVLAP Lab Code 101953 Date Analyzed 9/20/01 Batch #; 0109A643 SUMMARY OF ANALYTICAL RESULTS Site 100 John Street, New York, NY J

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

025 Ambient/ 23rd Floor/ Hallway 60 923 16/100 0 009 19 September A 6342

026 Ambient/ Apartment #2301/ Foyer Area 70 1077 6/100 0003 19-September A 6343

027 Ambient/ 22nd Floor/ Hallway 70 1077 5/100 0 003<LOD 19 Septembc A 6344

028 Ambient/ 22nd Floor/ Laundry Room 70 1077 10/100 0005 19-September A 6345

029 Ambient/ 21st Floor/ Hallway 70 1077 3/100 OOOKLOD 19-September A 6346

030 Ambient' Apartment #2101/ Foyer/ Living Room 70 1077 7/100 0003 19-September Area A 6347

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 , , x' All samples analyzed in accordance with the NIOSH 7400 Method using "A" Counting Rules Issue 2, August 1994

Instrumentation’ Al wanner Olympus PCM Mode! BH-2 with Walton Beckett Graticule (tOOum field diarr.-^te-) 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 5 of 8

CONFIDENTIAL, CITY_21MC100_009512808 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000176189