GO. Structure Structure Type Length ID of structure N or v EDS
No (Nonadb
F B C M >=05 M >=5|j Chrys Amphibole Nonasb Ambg/ND
Elements)
No Coord <5m
z
.3
Struct = > 0.5|j > 5:1 Aspect Ratio Grid acceptance:
7= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals
laboratory identification criteria obsen/ed <10% particulate coverage >50% coverage ate
least 20 unfolded or overlapped grid squares <5% F B C M >5U
a/= EDS spectrum conforming to laboratory holes or opaque areas
identification 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
NSC = No Structures Detected
CONFIDENTIAL, CITY_21MC1OO_OO3471238
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000177043
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NYC-WTC_000177043Source: NYC Law Department, mirrored locally