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

NYC 9/11 Public Portal Document 1tu, SUi ._ucli uJ..Ju _1.~~._I ,

208 Stonehinge Lane EMSL Analytical, Inc. Cdrle Place, NY 11514 Phone: (516) 997-7251 Firms (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-93/*16 Method*

Project: 110 CHURCH ST NY, NY

Sample ASBESTOS NON-ASBESTOS Sample Location Appearance Treatment % Type a Fibrous % Non-Fibrous 110-08-001 6TH FLR/ ESIDE Grey Teased/Crushed None Detected 10.% Cellulose 80.% Other Fibrous 10.% Min. Wool Heterogeneous

50-06-002 6TH FLR/N Grey Crushed/Teased None Detected 20.% Cellulose 50.% Other CENTER SIDE 30.% Min. Wool • Fibrous • Heterogeneous

50-06-003 16THFLRINSIDE Grey Teased/Crushed 1.3%Chrysotlle 20.% Cellulose 58.7% Other Fibrous 20% Min. Wool Heterogeneous

S0,05-001 5TH FLR /N SIDE Grey Teased 1.01% Chrysotile. 20.% Cellulose 58.99% Other Fibrous 20.% Min. Wool Heterogeneous

50-05-002 5TH FLR I N Grey Teased <1% Chrysotfe 25,% Cellulose 35.% Other

I CENTER SIDE 40,% Fiber Glass Fibrous Heterogeneous

110-05=003 5TH FLR / SE Grey Teased/Crushed None Detected 40.96 Cellulose 20.°/6 Other CORNER 40% MIn, 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 1050-28-002. both results given.

Daniel Clarke " Approved Analyst Signatory Disclaimers: PLNt has been known to miss asbestos in a mall paresMape of samples waist contain asbestos. Thus rmgalivo PLM results cam -tot be guaranteed. EMSL w9gests plat samples reported as c1% at none detoaed be tested with either SEM or TEM. The above test repon relates only to 2 the items tested. This r pan may not be reproduced, escept In IuQ withoue written approval by EMSL, The above test must not be used by the silent to claim product nrdoreement by NVLAP nor any agency of the Untied States Go resent. Laboratory is net responsible for the accuracy o/ results when requested to pt yeic5Uy separate and analyze layered samples, Is performed by EMSL Long Island (NVLAP ti t and bulk *1o1p45.to. NY ELAF 11469, CA SLAP 2339, CT P140249)

NYC-WTC 000098120