Document fragment from DEP Box 53 regarding West Street

NYC 9/11 Public Portal Document DEC -06-2001 04:08 PM ACT INC. 732 321 3666 P.02

■ Accredited Environmental Technologies, Inc.

■ December 7, 2001

■ Ms. Carolyn Baiiley CCMH Fin Center LLC ■ c o 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 referenced location. These samples were collected and analyzed by Accredited Environmental Technologies, ■ Inc. far 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 December 3, 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 for occupancy according to the Department 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. ■ S. ly, ■

■ tic H+ousekneclrt~ ■ Vice President EH/bg ■ ■ ■ 335 High Street • Metuchen, NJ 08840 • (732) 321-0666 • FAX: (732) 321.3666

■ NYC-WTC 000131235