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NYC-WTC_000232331

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NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet sample area analyzed

Client Name: HP ENVIRONMENTAL, INC. Volume (liters): 0.0 Job#: 101101001 Filter Type / Filter Area: MCE 385 mm2 T-ah Sample #: 07 Grid Opening Size: 0.01003 Client Sample#: ET-TRL-0929-FB1 02:00:17 Area Examined: 0.10030 mm2 Received: 10/01/2001 Magnification: 20,000 Date Analyzed: 10/01/2001 Accelerating Voltage: 100 KeV Scope #: 4 Analysis Performed by: Thomas R. MePJee Length Width EDS Orient. SAED Photo Location Grid Fiber Fiber Type Morphology Opening gM

1 NSD D C9-C5/1 U C9-E5/1 2 NSD u C9-F5/1 3 NSD u C9-G5/1 4 NSD u C9-H5/1 5 NSD u C10-C5/1 6 NSD u C10-E5/1 7 NSD u C10-F5/1 8 NSD u C10-G5/1 C10-H5/1 9 10 NSD NSD u

1

NSD; No Asbestos Structures Detected Comments Structure Density Concentration Grid Evaluation Total Grid Openings; 10 (str/inm2) (str/cc air) El Grid Openings Covered > 50% Chrysotile Asbestos Structures: 0 <10 El Intact Grid Opening > 50% Amphibole Asbestos Structures: 0 <10 EI Undissolved Filter < 10% Asbestos Structures >=5 microns: 0 <10 E Folded Replica < 50% Total Non-Asbestos Structures; EI Filter Loading < Total Asbestos Structures; 0 <10 13 Particulate Even Analytical Sensitivity: 10 ----------------- ' 06.002251

CITY_21MC100_003077203

NYC-WTC_000232331

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NYC-WTC_000232331Source: NYC Law Department, mirrored locally

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TEM asbestos air analysis results, Oct 2001

NYC-WTC_000174937

Laboratory report from HP Environmental Inc. detailing transmission electron microscopy analysis of an air sample received October 1, 2001.

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