Asbestos assessment report for 3 World Financial Center, Apr 2002

NYC 9/11 Public Portal Document

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Indoor environmental quality surveys 55 WEST 39nr STREET 12r. FLOOR Water treatment consulting NEW YORK, NEW YORK toot8 Asbestos & lead field services TEL (2r2.) 463-7812 Regulatory compliance programs FAX: (2(2.) 463-9197 Air, water & soil analytical laboratories WEB: WWW.AMBIENTGROUP.COM

October 3, 2001

Mr. Brian McCann Cushman & Wakefield alalf J.P. Morgan I Chase Manhattan Bank One Chase Manhattan Plaza New York, New York 10081

Re: 15 Broad Street Ambient Project #211352

Dear Mr. McCann:

The following is a summary of the indoor environmental quality survey that Ambient Group, Inc. performed on September 16`h, 2001 at the above referenced location. The survey included sampling for potable water, airborne and settled dust characterization, as well as asbestos absence/presence in settled dust.

Three (3) settled dust characterization samples were collected from various locations on floors 24, 12 and 2. The samples were composed primarily of cellulose, carbon particles, fiber glass and gravel road dust. No asbestos was detected in any of the samples collected. Many of these elements identified in the samples are commonly found in an indoor environment and should not pose any adverse health concerns to the building occupants.

Five (5) air samples were collected from various locations on the 24t, 12th, 2nd, 1St and ground floors and analyzed for dust characterization. The samples were composed primarily of carbon particles, skin flakes, gravel road dust, and fungal spores. Many of these elements identified are commonly found in the indoor air and should not pose any adverse health concerns. A trace amount of asbestos was detected in the sample collected in the property management offices, the level found is well below any regulatory limits or guidelines.

It should be noted that skin fragments, which were also identified in the samples, consist primarily of dead epithelial cells which are constantly shed by humans and are present as a result of the building occupants. Likewise, decayed organic matter typically includes decaying plant material and food particles, and it is not uncommon to find these materials in samples collected from within commercial office buildings.

In addition to the settled dust samples, testing for carbon dioxide, carbon monoxide, volatile organic compounds and airborne particulates was also performed. Airborne levels for each of these parameters were within published guidelines/regulations.

Analysis of the two (2) water samples, collected from the locations noted below, indicated that all measured parameters were within acceptable levels as defined by the Safe Drinking Water Act.

GLEN COVE, NY MIAMI, FL CHICAGO. IL ORANGE, CA 916 609-0009 305 86o-otot 312 52 .7-55z6 714 282-252.5

NYC-WTC 000094894