DEP memo on asbestos-containing material clean-up procedures, Sep 2001

NYC 9/11 Public Portal Document

To:I Building Owners

From: R. Radhakp,«finan, P.E.

Date: September 14,2001

Subject: Clean-up of Asbestos-containing Material

Building owners or their representatives instituting clean-up activities of areas affected by the World Trade Center attack should follow these procedures:

1. Minimal dust accumulations (light coating) can be cleaned using wet methods and/or vacuums equipped with HEPA filters.

2. HVAC-system filters should be replaced prior to re-occupancy.

3. Accumulations of dust that include pieces of debris must be sampled by a NYC- DEP certified investigator or NYS- DOL inspector to determine whether the 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 objects. ACM is any material containing more that one percent asbe^os. AU o work shall be i of the Rufes of the City of New York. 2^ 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 materu^and the starting date. The Asbestos and Lead. Control Program (ALCP) may be reached'via (718) DEP- HELP(24hrs/7days),

6. A scope-of-work including the information outlined in number 3 above and the procedures to be. employed should be faxed to the ALCP at fax 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 firom 8:00 a.m. to 8:00 p.m. seven days per week. A field office has been set up to expedite on-site-assistanee-if necessary’.

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

NYC-WTC_000151346