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

NYC 9/11 Public Portal Document 10/16/2001 09:36 5169977528 EMSL LI PAGE 08

208 ehinge EMSL Analytical, Inc . Co Ston ee, NY e 11514 Phone: (516) 997-72SI F ar: (516) 997-7528 Attn.: STEVE POWELL Environmental Monitoring & Consulting Assoc. Monday. October 15, 2001 (EM & CA) P.O. Box 872 Ref Number. (_10115738 Somerville, NJ 08876

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 Location Appearance Treatment % Type % Fibrous % Non-Fibrous 10-12-001 J12TH FLR ( SW Grey Teased/Crushed CORNER 0.71%Chrysoble Cellulose 59.29°k Other Fibrous F2 1win. Wool Heterogeneous

50-12-003 12TH FLR / N SIDE Gfey Teased/Crushed None Detected 15.% Cellulose 85.96 Other Fibrous Heterogeneous

I2TH FLR I N SIDE Grey None Detected f 10.% Cellulose 75.% Other Fibrous 15.% Min. Wool Heterogeneous

1-001 11TH FLR / S SIDE Grey 1.4%Chrysotile I 20.% Min. Wool 68.6% Other Fibrous 10.% Cellulose Heterogeneous

50-11002 11TH FLR / N SIDE Grey Teased/Crushed None Detected 20."/° Cellulose 70.% Other Fibrous 10.% Min. Wool Heterogeneous

111011.003 11TH FLR / W Grey Amasite 10.% Cellulose 78.96% Other SIDE Fibrous Teased/CrusheT(),-55229/6Chrysotile 10.% Min. Wool I Heterogeneous

Comments: For all obviously heterogeneous samples easily separated into subsamples, R and for layered samples, each component is analyzed separately. Also, "# of Layers" refers to number o f separable subsamples.

• NY samples analyzed by ELAP 198.1 Method.

Note: "Two Samples were submitted with 1050-28-002, both results given.

Daniel Clarke Analyst Approved Signatory olact imars: PUN Pies bean knows b miss aebesms in a smell percontepe of guarenteed. 5M5L suggest. that samples repa<ed as -1K or fore samples whieh contain asbestos, Thus results tea tsnnet be the (tame tested. This ropers hey not be rapredu cad. e-' doteoed be tmlad With either SEM or TEM. The ab resod relates OP1y pt in run. wdhout wraten dlw la EMSL The, above tall ttarit not be used by the ct 8 Wim product ntdorsement by NVIAP nor any agency of the United Status to requested to phyw a y sepNete and anayse layered sample.. Gavamntl~LabLaboratory Is trot responstate for the omxary of remiss when whop ..ii performed by EMSL Long island CNtMp Air and BuS 5101048-10, NY ELA 11469. CA ELAP 2389, CT PH-0245)

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