NYC-WTC_000229930

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters) 1920 Lab Group #: 6699 Filter Type / Filter Area: MCE 385 mm- Lab Sample 1 Grid Opening Size: 0.01 124

Oient Sample #: 01 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 2/16/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure T/pe Length ID of Structure N or v EDS (Nonadb No F B C M >=05 p >=5)j Chrys Amphibole Nonasb Ambig/ND No Coord <5u Elements)

■3 ------ i:-

5

Struct - > 0.5p > .5:1 Aspect Ratio Grid aorapiance

v= Positive d ffraciion pattern properties conforming to <50% undissolved filler, overlapped or folded Totals laboratory dent'licalion criteria observed <10% particulate coverage >50% coverage ale least 20 jntolded or overlapped gnd squares <5% F B C M'! ">5u v = EDS spectrum conforming to l.sooraiory holes or opague areas iaentrficalicn crtrerra observed Chrysotile AMPi-iiBOLES Amphibole i - = Single -l-ser Amosite a = 3uncle >3 'ibers <1 ‘iberdramerer apart Crocidolite Ambiguous I D = Clusiei |>3 Intersections) Anthophyllite Tremolite I Non-Asbestos 5 t M = 'Aatrx i Non-Identified j Actinolite NSD -- Mo Sirjctures Cetecteo

CONFIDENTIAL, CITY_21MC100_003386266 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000229931