Remediation report cover, 30 Warren Street, January 2006

NYC 9/11 Public Portal Document

Environmental Site Characterization — Facade Report Fiterman Hall — 30 West Broadway, New York, NY Airtek Project 05-0867 — January 10.2006

Physical Condition of Facade:

With the exception of the Gash Area, the Building facade is in excellent condition. The brick fascia is intact, the newly installed window systems are in excellent condition, and their rubberized caulking and sealing components are intact.

3.4 Asbestos-Containing Building Material Inspection and Testing

Testing confirms that the brick, mortar, sluiced mortar, block and window sealant materials (caulk & glazing) are non-asbestos materials. All other window components are glass and aluminum, and are non-suspect. Asbestos-containing facade materials include the interior vapor barrier that was applied to the original facade, and lintel flashing that exists below the windows between the brick fascia and the facade structural components (Please see Figure F-I Section View for flashing location). ACBM testing data is included as Attachment B.

3.5 Lead-Based Paint Survey

Testing of facade components indicated that facade materials are not coated with lead-based paint. Testing was conducted by X-Ray Fluorescence (XRF). Destructive testing was conducted to allow access to all facade components. Results of the lead testing conducted are included as Attachment C.

3.6 WTC COPC Impact Inspection

Surface Impact:

As noted above in Section 3.3, close visual inspection of the brick fascia and window systems indicate that with the exception of the gash area, WTC debris does not exist on the facade. Wipe testing confirms that levels of CoPCs detected on the fascia are consistent with, or below levels that would be expected on a 60 year-old urban structure. As an example, the highest level of lead dust detected above the ground floor was 8.18 ug/ft2. By law, at 39 ug/1t2 a school classroom floor may be occupied by kindergartners. Similar results were exhibited in sampling for other CoPCs. Metals wipe testing data is included in Attachment A.

Interstitial Impact

Interstices do not exist within the facade system except for the communicating openings referenced in Section 3.1 above, the interior chases accessible from the interior of the Building, an,d individual structural blocks which are not compromised. The notable exception, of course, is the gash area, which will be subject to focused cleaning.

NYC-WTC 000096508