Document fragment from DEP Box 53 regarding West Street

NYC 9/11 Public Portal Document NOV-26-2001 10:51 AM AET INC. 732 321 3666 P. 02

■ Accredited Environmental Technologies, Inc.

■ November 26,2001

■ Ms. Carolyn Bailey ■ CCMH Fin Center LLC e% Claris Services Corporation ■ 6903 Rockledge Drive, Suite 920 Bethesda, MA 20817 ■

RE:New York Financial Center Marriott,85 West Street, New York,New York ■ ■ Dear Ms. Bailey:

■ Attached are the laboratory results for airborne asbestos samples collected at the above retbrenced location. These samples were collected and analyzed by Accredited Environmental Technologies, ■ Inc. for comparison with the clearance standards for airborne asbestos established by the New York City Department of Environmental Protection Asbestos Control Program (Title 15, ■ Chapter 1). Sample collection occurred under normal occupancy conditions on November 21, 2001. All samples were collected with high volume sampling pumps with sample durations of ■ approximately five hours and are considered representative of background fiber concentrations ■ throughout the first three floors of the building.

■ Results indicate that fiber concentrations In the background samples were all below 0.01 F/cc, a level considered acceptable 1br occupancy according to the Dement of Environmental ■ Protection standards.

■ Samples were analyzed by Phase Contrast Microscopy per NIOSH Method 7400 for asbestos ■ fibers. This method measures total airborne fibers and does not distinguish fiber morphology. All structures with a length to diameter ratio of 3 to I or greater and a length greater than 5 microns, ■ are considered to be fibers and are counted as such.

■ if you have any questions or require additional information, please do not hesitate to contact our office. ■

Sincerely,

■

Eric Houseknecht ■ Vice President EH/bg ■

■ 335 High Street • Metuchen, NJ 08840 • (732) 321-0666 • FAX: (732) 321-3666

■

NYC-WTC 000131241