Cover page for bulk dust sample analysis, 110 Church Street,

NYC 9/11 Public Portal Document Ili/ lb/ 20bl Y3 : Jb n1by i / f Zti r HUG U lJ

208Stonehinge Lane EMSL Analytical,Inc. Carle Place, NY 11514 Phone: (516)997-7251 Fax: (516)997-7528 Attn.: STEVE POWELL Environmental Monitoring & Consulting Assoc. Monday, October 15,2001 (EM & CA) P.O. Box 872 Ref Number: L10115738 Somerville, NJ 08876

POLARIZED LIGHT MICROSCOPY(PLM)- POINT COUNT Performed by EPA 600/R-931116 Method*

LI Project: 110 CHURCH ST NY, NY

I Sample 50-03-001 Location 3RD FLR / N SIDE Grey Appearance Sample Treatment Teased/Crushed / ASBESTOS Type None Detected % NON-ASBESTOS Fibrous 20.% Cellulose % Non-Fibrous 75.% Other Fibrous 5.% Fiber Glass Heterogeneous

50-03-002 3RD FLR / N Grey Teased < 1%Chrysotile 10.% Cellulose 50.% Other . CENTER SIDE 40.% Fiber Glass Fibrous Heterogeneous

110-03-003 3RD FLR I SW Grey Teased/Crushed 2.1%Chrysotile 32s/a Cellulose 54.% Other CORNER Fibrous 40.7% Fiber Glass Heterogeneous

110.02-001 2ND FL.R/E SIDE Grey Teased/Crushed 1.1% Chrysotile . 7.3% Cellulose 50.% Other Fibrous 41.6% Min. Wool

I 50-02 2 _______________

2ND FLR/E SIDE Heterogeneous

Grey Crushedrreased None Detected 50.% Fiber Glass 40.% Other Fibrous 10.% Cellulose . Heterogeneous

50-02-003 2ND FLR/N Grey Teased/Crushed None Detected 50.% Fiber Glass 40.% Other CENTER SIDE 10.% Cellulose Fibrous Heterogeneous

Comments: For all obviously heterogeneous samples easily separated into subsamples, and for layered samples, each component is analyzed separately. Also. '# of Layers' refers to number of separable subsamples. NY samples analyzed by FLAP 198.1 Method.

Note: "Two samples were

submitted with 1D50-2B-002. both results given.

Miron Apfeldorfer Approved Analyst Signatory Disclaimem PLM has bean known to miss esbeetce wi n

porcantega of samples Which Contain asbaslos. Thus ncpative PLM results cannot be small

guaranteed. EMSL suggests that samples rapodad '1% none detected be tasted with either SEM as

or

M. The abovo test report relates only to 5 the items tested. This report may not be reproduced. except in full, without writlan approval by EMSL The above lest must not be used by the client to or

claim product endorsement by NVLAP nor any agent of ins United States Govansnent Laboratory Is not responsible for the eoaracy of results when requested to rftoiealy separate and anayse layered samples. ysis petfermed by EMSL Long Island (NVIAP Air and sulk P101048-10. NY SLOP 11489, GA CLAP 2339. CT PH-0249)

I 000098123 NYC-WTC