NYC-WTC_000220345

NYC 9/11 Public Portal Document

Clean Air Testing Labs, Inc. 1111 steel© Blvd. Baldwin. New York 11610 Te!./Fax: [616)546-2640

ELAP # 11242

March 12-, 2001

Re: 153 CHAMBERS STREET NEW' YORK, NY 10006

Project # 02-91 Dear Nr. Mortlock:

Results from the bulk samples submitted on 3/10/02 is as follows:

Sample Number Macroscopic Qbsv Results Number 01 Gr.ey, Homogeneous 40% Cellulose Debris/Dust Friable, Non-Fibrous 40% Mineral Wool 5’'^ Floor Top of Air Conditioner 20% Binder Chamber Street Side of Building Number 02 Grey, Homogeneous 40% Cellulose Debris/Dust Friable, Non-Fibrous 40% Mineral Wool 4^^^ Floor Window Ledge 20% Binder Chamber Street Side of Building Number 03 Grey, Homogeneous . 40% Cellulose Debris/Dust Friable, Non-Fibrous 40% Mineral Wool 3’^'^ Floor Window Ledge 20% Binder Chamber Street Side of Building Number 04 Grey, Homogeneous 10% Cellulose Debris/Dust Friable, Non-Fibrous 20% Mineral Wool 2'"^ Floor Window Ledge 20% CaC03 Chamber Street Side of Building 50% Binder Number 05 Grey, Homogeneous 30% Cellulose Debris/Dust Friable, Non-Fibrous 30% Mineral Wool 1^'' Floor Top of Air Conditioner 40% Binder Chamber Street Side of Building

Page 1 of 2 Controlled Copy on Grey paper Pro-iect #02'91

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NYC-WTC_000220357