NYC-WTC_000231403

NYC 9/11 Public Portal Document k-.

TAL 0 R p e0 The First Choice, ^or Environmental Testing & Consulting

HSi October 9.2003

Gateway Plaza Management Corporation 375 South End Avenue M New York, New York 10280 ViaFacsimilc

'll Subject; Final Air Clearance Sampling: Gateway Plaza 375 South End Avenue Building 400: ApartmenMOU

Gentlemen:

ALC Environmental Incorporated (ALC) (License ?f00'0358) has been retained to perform bulk sampling, visual assessments & air monitoring according to the EPA Pr(?toeal to determine the presence of asbestos at the above referenced project.

Based on EPA Guidelines, we collected one (1) bulk sample from this apartment and analyzed it via Polarized Light Microscopy (PLM) Methodology. One sample collected from this apartment was. found to be slightly above the regulatory limits of 1% by weight. M 3 The sample was then forwarded to a second laboratory for further analysis and was

■ determined to be below the regulatory limits. (See Attached Results)

Approved Asbestos Abatement Inc, (License #99-1184), a certified asbestos abatement contractor hired independently by the owner, was used to clean this specific apanment.

Upon completion of the asbestos clean up procedures, a visual inspection was conducted in Apartment lOU of the 400 building at Gateway Plaza. No visible asbestos containing material (acm) or debris was observed, ALC then performed final air clearance sampling.

The areas were cleared by ALC via Transmission Electron Microscopy (TEM) Methodology. The results indicated that the work areas achieved the acceptance criteria well below <70 structures per mini set by the above regulations.

The air sampling and analysis were done utilizing applicable Federal, State and City Regulations pertaining to asbestos to include Federal OSHA (29 CFR 1926.58) EPA NESHAPS (40 CFR PART 61), AND TSCA TITLE n AHERA/ASHARA (40 CFR PART 763) Asbestos Regulations; the New York State Department of Labor Industrial Code Rule 56 and the New York City Department of Environmental Protection Title 15 Asbestos Regulations.

Vest 30th Street - 11th Floor * New York, New York 10001 • 212.279.1001 • 888.466.3620 - Fax: 212,279.6747 IlBce: The Bellevue " Suite 600 • 200 S. Broad Street • Philadelphia. PA 19102 • 215.731.9499 • 888.789 8378 • Fax: 215.732.955=

03572 CITY_21MC100_008879988

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