Bulk sample analysis report, 100 Liberty Street, Sep 2001

NYC 9/11 Public Portal Document

35-40 36lh stmt Lona Island City NowYork,111(16 Tel: {718)729-1997 Fax: (718)729-1816

BULK SAMPLE ANALYSIS REPORT CLIENT: NYC-DCAS BUILDING ADDRESS: 100 Centre Street PROJECT#: Client Sample ID# ; 26 27 2S Lab Sample ID# • 010918A-957 0I0918A-958 010918A-959 Sample Location North Exit South Entrance Elevator Bank "A” Lobby Lobby Lobby

Homogeneity- Yes Yes Yes Sample Description Floor Floor Floor Wipe W ipe Wipe

Color Blk BIk Blk Texture Mixed Mixed Mixed Sample Treatment None None None

Asbestos Present. (Type & Percent) ND ND ND Total Percent Asbestos: 0% 0% 0% Other Fibr Mat. (Type & Percent). 8%CELL 5%SYNTH 5%CELL 2%SYNTH Non Fibr. Mat (Percent)- 92% 95'’zo 93% Date Received: 9/18/01 Date of Analysis 9/18/01 Date of Report; 9/18/01

Analyst!" 4^ Roody Loi^ Lab Manager; A David Chen * Analysis of samples is performed by PoWrized Light Micro; copy (PLM) - Point Counting Method (EPA 600/M4-82-020) / * Analytical equipments; Stereobinocular microscope (MEIJI EMT-Serial # 25930). Polarized Light Microscope (MEIJI ML-POL-Serial # 88034) * PLM is not consistently reliable in detecting asbestos in floc r coverings and similar non-friable organically bound materials. Quantitative transmission electron microsi opv is currently the only method that can be used to determine if this material can be considered or treated as -lon-asbestos-containing * Samples will be stored for ninety (90) days and then retume J 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 vritten approval of the laboratory. * The report must not be used by the client to claim endorsemt nt by NVLAP or any agency of the US Government. t\ YS-DOH ELAP # 11273 .MST-yYLAPU 112047 A/HAfl; 100269

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NYC-WTC_000182071