Air sampling correspondence, 20 Dey Street, Feb 2002

NYC 9/11 Public Portal Document

Bovis Lend Lease February 22, 2002 LMB, Inc. 200 Park Avenue New York, NY 10166 R. Radhakrishnan, P.E. Telephone Director 212 592 6700 Asbestos Control Program Facsimile New York City Department of Environmental Protection 212 592 6988 59-17 Junction Boulevard www.bovislendlease.com Corona, New York 11368-5107 Regional Headquarters London New York RE: The Millenium Hilton Hotel Business Confidential Sydney 41-51 Church Street, 172-184 Fulton Street

Dear Mr. Radhakrishnan:

I am writing in response to your letter to CDL (NY) Limited LP DBA The Millenium Hilton (the Hotel) dated February 12, 2002 which was forwarded to me on February 15`h.

Bovis Lend Lease (BLL) was retained by CDL (NY) as the Construction Manager for work at the Hotel following the events of September 11. I have been assigned as the Project Manager.

Beginning on September 20, 2001, representatives of Testwell Laboratories have visited the site at our direction and performed various air and bulk sample tests and an initial assessment, copies of which are attached for your reference and use. We have marked all of the materials being submitted as confidential pursuant to the Freedom of Information Law (N.Y. Public Officers Law 87 (2)(d)).

Subsequent to the initial tests, BLL engaged two cleaning/abatement firms to perform debris clean up in selected areas of the Hotel. These areas included the exterior plaza and roof setbacks, the cellar and sub-cellar, the Lobby and floors two through eleven. These were the areas most directly effected by the events of September 11. All workers wore appropriate respirators and protective suits at all times when they were working on site.

We are presently in the process of repairing damaged facade glass, which requires workers to be in the guestrooms as well as working from exterior scaffolding. Prior to beginning this work, Testwell performed additional air monitoring to determine exposure levels. For the first week that this work was taking place, workers wore personal air monitors and respirators. Results of the tests during facade glass installation indicate levels of airborne fibers are well below the threshold for action required by OSHA. However, as directed by Testwell, we are encouraging all workers to continue to wear respirators. In addition, Testwell will continue to take periodic air samples as work progresses.

NYC-WTC 000103723