GO. Structure Structure Type Length ID of Structure N or V EDS
No >=05 p ~I Amphibole Nonasb Ambig/ND
(Nonadb
No . Coord
F B C M >=5p Chrys
Elements)
<5p
z
7X——
Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance:
'/= 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 >5u
V= EDS spectrum conforming to laboratory holes or opaque areas
identification chtena 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_0 03470523
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176562
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NYC-WTC_000176562Source: NYC Law Department, mirrored locally