NYC-WTC_000230106

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1960 Lab Group #: 7216 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 10 Grid Opening Size: 0.01124 Client Sample #: 10 Area Examined: 0.04496 GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/26/02

Analysis Performed By: MARK PEYSAKHOV

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

-3 CTJ ^<7

Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance: n/= Positive diffraction pattern properties conforming to <50% 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 i >5p v= EDS spectrum conforming to laboratory holes or opaque areas identificabon criteria observed Chrysotile , AMPHIBOLES , Amphibole F = Single Fiber Amosite B = Bundle (<3 libers <1 liber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos M = Matrix Tremolite Actinolite Non-Identified NSD = NO Structures Detected

CONFIDENTIAL, CITY_21MC1OO_OO3388752 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000230106