NYC-WTC_000230029

NYC^/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 7162 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 12 Grid Opening Size: 0.01124 Client Sample #: 12 Area Examined: 0.04496 mm^ GRID BOX: Magnification: 20,000 GRID ID: X. Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/21/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N orv EDS No (Nonadb F B C M >=05 M >=5p Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

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Struct - > O.cp > 5:1 Aspect Ratio Grid acceptance, Positive diffraction pattern properties conforming to <50% undissoived filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5p y= EDS spectrum conforming to laboratory holes or opaque areas identification criteria obsenred Chrysotile j AMPHIBOLES^ Amphibole r = Single Fiber I Amosite B = Bundle (<3 fibers <1 fiber diameter apar. 1 Crocidolite 1 Ambiguous I Anthophyllite i C = Cluster (>3 intersections) Non-Asbestos M = Matrix i Tremolite j I Actinolite i Non-Identified NSO = No Structures Detected

CONFIDENTIAL, CITY_21MC1OO_OO3388638 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000230029