GQ. Structure Structure Type Length ID of Structure N or 7 EDS
No >=05 M (Nonadb
F B C M Chrys Amphibole Nonasb Ambig/ND
No Coord <51J Elements)
Struct = > 0.5(1 > 5:1 Aspect Ratio Grid acceptance:
’/= Positive diffraction pattern properties contotming to <50% undissolved filter, overlapped or folded Tot£^
laboratory identification criteria observed <10% particulate coverage >50% coverage ate
least 20 unfolded or overlapped grid squares <5% F B C M >5p
V= EDS spectrum conforming to laboratory holes or opaque areas
identification criteria observed Chrysotile
I AMPHIBOLY ~ 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-ldentified
Actinolite
NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003433777
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000175940
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NYC-WTC_000175940Source: NYC Law Department, mirrored locally