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

NYC 9/11 Public Portal Document lu/ iu/ ~Uui L)-1. JU Jl U7y! rJLU tl•I:AL Ll

LI EMSL Analytical 20 Srolace a Lane l ~C. Cade Place. NY 11574

I Attn.; STEVE POWELL Phone. (516) 997-7251 Fax (516) 997-7528

Environmental Monitoring & Consulting Assoc, Monday, October 15, 2001 I (EM & CA) P.O. Box 872 Somerville, NJ 08876 Ref Number. L10115738

POLARIZED LIGHT MICROSCOPY (PLM) - POINT COUNT Performed by EPA 600/R-93/116 Method* Project; 110 CHURCH ST NY, NY

Sample ASBESTOS NON-ASBESTOS Sample L.ocation Appearance Treatment °/0 Type 50-08-001 FLR / S SIDE Fibrous % Non-Fibrous Grey Teased/Crushed 1.8%Chrysotile 20.% Cellulose 58.2% Other Fibrous

I'___ Heterogeneous 20.% Min, Wool

50-09-002 FLR IN SIDE Grey None Detected 10% Cellulose Ii . Fibrous Heterogeneous 10.% Min_ Wool 80.% Matrix

9TH FLR / SW Gray CORNER None Detected 20.% Cellulose 60.% ether Fibrous 20.% Min. Wool Heterogeneous

8TH FLR I SW Grey CORNER 1.3% Chrysotile 20.% Cellulose 58.7% Other Fibrous 20.% Min. Wool Heterogeneous t 50-08.002 8TH FLR / N Grey Teased/Crushed CENTER SIDE None Detected J 30.% Cellulose 40.% Other Fibrous

IL. Heterogeneous 30.% Min. Wool

50-08-03 8TH FLR / N SIDE Grey 0.23% Chrysotile I 30.% Cellulose 39.77% Other

I. . Fibrous - Heterogeneous 30.% Min. Wool

t Comments: For all obviously heterogeneous samples Also, 'rtlt of Layers" refers to number of easily separated into subsamples, and for layered samples, each component is analyzed separately, separable subsamples. N.Y samples analyzed by ELAP 198.1 Method.

I Note: . : Two samples were submitted with ID50.2B-002. both results given.

i ______

Daniel Clarke ,

Analyst Approve pp Disclaimer: PLM has been gown to miss asbestos in a ema& potceMsw Signatory guaranteed. EMSL suggests that samples reported as of semplea whldl cwfth asbestos. Thus rwg.,wve the items tested This report may 41% or none detected be tested with anther SEM PLM results cannel be or TEM. The obese leaf net be rep tducad, esnopt bn 140. withut wdlten report relatesonly to dabs product endorsement by NVLAP nor any approval by EMSL The above test must not be 91 asa5ncy at the United Stales Ga ehtrrlenL used by lit° client to requested to pnyei411y separate and erurlyte layered samples. ~' Is npl r.sponsibM far the amrroq of reside when Ysls perror1ned by EMSL Lang Island (NVIAp qtr and Sulk 0101045-10. NY E9AF 11469. CA E Ap 2359 CT PHA249)

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