Memo on asbestos clean-up procedures, Sept 2001

NYC 9/11 Public Portal Document

r To: Building Ownos . /) >7^ From: R. Radhakrjshnan, PJE. I Department Date: September 14,2001 ; Environmental - Protection ; Subject: Clean-up of Asbestos-containing Matoial 59-17 tunedonBoutooMd- COroni. New York 11368-5107 . Building owners or their repi^entatives instituting clean-up activities of areas -s?- affected by tie World Trade Center attack should foUow these procedures: Joe!A MleieSr^;RE.ij^: 1. Minimal dust accumulations (li^t coating) can be cleaned using wet methods and/or vacuums equipped with HEPA filters. — * Robert C. AvaltraS^''’'? Deputy Commissioner 2. HVAC-system filters should be replaced prior to le-occupancy. : Bureau of ' Environmental Compliance 3. Accumulations of dust that include pieces of debris must be sampled by a NYC- DEP certified investigatoi ot NYS- DOL inspector to determine whether* • tile material is asbestos-containing material (ACM) or it may be assumed to be < ACM. Wipe sampling and/or micro-vacuum sampling are not recognized methods for asbestos sampling and should not be used. Bulk sample analysis (PLM) must be performed by laboratories with ELAP accreditation.

4. Only individuals certified by the NYC-DEP as asbestos handlers can handle dust and debris accumulations identified to be ACM or asbestos-contaminated • I . objects. ACM is any material containing more that one percent asbestos. AU work shall'be performed in accordance with Title IS, Chater 1 of the Rules of the City of New York >

5. Emergency telephone notification must be provided to the Department The telephone notification must include the name affiliation, and telephone number of the caller; the exact location including street address, floor, and surface types to be cleaned; the name, address, and telephone number of the NYS DOL licensed asbestos contractor handling the material; and the starting date. The Asbestos and Lead Control Program (ALCP) may be reached via (718) DEP- HELP(24hrsndays).

6. A scope-of-work including the information outlined in number 3 above and 1 the proc^ures to be employed should be faxed to the ALCP at fex number (718) 595-3744 or (718) 595-3648. The Department will review plans, provide assistance, and offer recommendations. Our staff will be available to answer your questions from 8:00 a.m. to 8:00 p.m. seven days per week. A field office has been set up to expe<^’'„ on-site assistance if necessary,

7. Remote showering units shall be acceptable. The area where the installation DEP is proposed shall be pre-cleaned using wet wiping and/or HEPA vacuuming procedures. The location of the unit shall be specified in the scope of work

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