Bulk sample analysis report, 100 Liberty Street, Sep 2001

NYC 9/11 Public Portal Document

35*«)36(hSlmt Long Island City

tl k NewYork.tHM Tel: {118)729-1997 Fax:(718)729-1876

BULK SAMPLE ANALYSIS REPORT CLIENT: NYC-DCAS BUILDING ADDRESS: 100 Centre Street PROJECT#; Client Sample ID# : 6 8 9 10 Lab Sample ID# ■ 010918A-937 010918A-938 010918A-939 010918A-940 010918A-941 Sample Location Center Window North East North East South East Elevator Bank 17th Floor Stairwell "A" Elevator Stairway "D" "A" 14th Floor 14th Floor 14th Floor 14th Floor

Homogeneity- Yes Yes Yes Yes Yes

Sample Description Window Sill Floor Window Sill Stairway Floor Floor Wipe Wipe Wipe Wipe Wipe

Color Blk Blk BIk Blk Blk

Texture Mixed Mixed Mixed Mixed Mixed

Sample Treatment. None None None None None

Asbestos Present: (Type & Percent) ND ND ND ND ND Total Percent Asbestos: 0% 0% 0% 0% 0% Other Fibr. Mat (Type (St Percent)- 28%CELL 1%CELL 3%CELL 5%SYNTH 3%SYNTH 5%SYNTH I0%SYNTH 5%SYNTH Non Fibr Mat (Percent): 67% 89% 92% 95% 97% Date Received- 9/18/01 Date of Analysis 9/18/01 Date of Report 9/18/01

Analyst:' Lab Manag^tx Roodv Uouis David Chen * Analysis of samples is performed by tfolarized Light Micro .copy (PLM) - Point Counting Method (EPA 600/M4-82-020) / * Analytical equipments: StereobiWScuIar microscope (MEIJI EMT-Serial # 25930), Polarized Light Microscope (MEIJI ML-POL-Serial # 88034) * PLM is not consistently reliable in detecting asbestos in floor coverings and similar non-friable organically bound materials. Quantitative transmission electron micros :opy is currentiy the only method that can be used to determine if this material can be considered or treated as non-asbestos-containing * Samples will be stored for ninety (90) days and then returned to the client upon request * The results relate only to the items calibrated or tested. * The certificate of report shall not be reproduced without the written approval of the laboratory ♦ The report must not be used by the client to claim endorsemi'nt by NVLAP or any agency of the US Government NYS-DOH ELAP 11273 MST-!\rLAPtf 192047 AIHA#: 100269

CITY_21MC100_002777749

NYC-WTC_000182067