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

NYC 9/11 Public Portal Document

208 Stonehinge Lane EMSL Analytical,Inc. Carle Place, NY 11514 Phone: (516)997-7251 Fax: (516) 997-7528 Attri.: STEVE POWELL Environmental Monitoring & Consulting Assoc. Monday, October 15, 2001 (EM & CA) P.O. Box 872 Ref Number: LIO115738 Somerville, NJ 08876

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

LI Project: 110 CHURCH ST NY, NY

Sample ASBESTOS NON-ASBESTOS Sample Location Appearance Treatment % Type % Fibrous % Non-Fibrous 110-04-001 4TH FLR / SW Grey Teased None Detected 20.% Cellulose 20.% Other CORNER 60.% Min. Wool Fibrous

I Heterogeneous

50-04-002 4TH FLR I E SIDE Grey Teased/Crushed None Detected 40.% Cellulose 60.% Other Fibrous Heterogeneous

I 50-04-003 4TH FLR / N CENTER SIDE Grey Fibrous Heterogeneous Teased/Crushed None Detected 30.% Cellulose Min. Wool 40.% Other

I 50-19"002 19TH FLR / E STAIRWELL Grey Fibrous 1T,,,1,d/crushed None Detected 10.% Cellulose 40.% Min. Wool 50.% Other

Heterogeneous

50.18-001 18TH FLR / N Grey Teased/Crushed None Detected 10.% Cellulose 50.% Other SIDE CENTER OF 40.% Min. Wool Fibrous FLR Heterogeneous

50-18-002 18TH FIR! SW Grey Teased/Crushed None Detected 5.% Cellulose 50.% Other SIDE OF FLR 45.% Mln. Wool 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 ELAP 198.1 Method.

Note: -'Two samples were submitted with ID50-25-002, both results given.

r

Michelle McGowan Approved Analyst Signatory 1' Disclaimers: PLM ties been known to asdoetoc Ina met percentage of samples which contain asbestos. Thus nogatiee PLM resuna cannot be miss

guaremeed. EMSL suggests that samples repotted 41% or none detected be tested with either SEN of TEM. The above teal repon ratites only to

A as

3 ttte items tested.This tapoet be may r°produc tel

ed. except in full, without written approval by EMSL The above Last must not be used by the client to clakn product endorsement by N" nor any agency of the United States Government. Labotalory is not rosponalble for the araureoy of results when requested to p yslcatty soperate end analyze layered samples.

I t is performed by EMSL Long Island (NvLAP Air end Built x101946.10, NT ELAP 11469, Cs ELAP 2539. CT P140249)

I 000098121 NYC-WTC