NYC-WTC_000229748

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume niters): 1920 Lab Group #: 8138 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 9 Grid Opening Size: 0.01124 Client Sample #: 09 Area Examined: 0.04496 mm^

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings; 4 Analysis Date: 6/17/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure NorN EDS (Nonadb No F B C M >=05^1 >=5(j Chrys Amphibole Nonasb Ambig/ND No Coord <5m Eleinents)

Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance: y/ = Positive diffraction pattern properties conforming to undissolved 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 identificalion criteria observed Chrysotile amphiboles' Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CONFIDENTIAL, CITY_21MC100_003387873

SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000229748