Fax transmittal for lab report, 80 Wall Street, Jun 2002

NYC 9/11 Public Portal Document

'06/14/2002 00:14 FAX 2129434641 [a 07 aMBIONT GROUP, INC.-LOM ISLAND (516) 6@9-9871 06/15/92 12 t 62P P . td03

ambient labs Inc. 139 West 25th Street New York, TT 10001 ELAP #10865

I REPORT OF AIR SAMPLE ANALYSIS BY TRANSMISSION ELECTRON MICROSCOPY

Project 1D : 0211366 Client Name: The Otto Oerdau Company, DAI Group Project Name: 80-82 Wall Street Field ID: 211368.01

Sample ID : AEM990 09400 Hato Received: 9!20101 Sample Description: 12th Floor. (Mitchell/Martin) Conference Room

Filter Composition; MCE Porosity: 0.45 micron Filt Lot # : EX66 Filter Diameter; 28 mm Effective Filter Area: 385 mn' Air Volume; 1365 Itr Total Filter Area Analyzed : ome30 mm2

# Grid Openings: 7 Avg Grid Opening Area :0.0094 rrn'r? grid Lot #: 4083 Analytical Sensitivity - 0.0945 asbestos structfam3

Number of Asbestos Number of Structure Types: Structures: LENGTH FIRER CLUSTER MATRIX BUNDLE Chryeotile : 0 0,5urncL"5um 0 0 0 0 Amphibole: 0 L' > 5 urn 0 0 0 0 A: TOTAL CHRY$OTILE STRUCTURE CONCENTRATION: LT AMYL SENS structurwcn B: TOTAL AMPHIBOLE STUCTURE CONCENTRATION; LT ANYL SENS structur~la,io C: TOTAL ASBESTOS STUCTURE (A+B) CONCENTRATION: LT AMYL SENS structyreetorrr~

TOTAL S O CONCENTRATION o IN AIR LT AMYL SENS Stcvcturetcrrp ON FILTER LT ANYL SENS stnxtur+etmrn2

Mtoregr8p io!t for Repene0 Structure None None

Reported for Ambient Labs Inc. by

Analysis Date: 9/20/01 INNA NURIK Environmental Analyst • Cvsneaded. NA - Mrdrzed

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