Asbestos sample label sheet, 170 Broadway

NYC 9/11 Public Portal Document FEB-25-2002 18:00 HYGIENETICS NYC 212 244 8505 t'.u1r21

H gienetics Environmental .. Hygienetios Environmental Services, Inc. I West 34th Street ITho e. (212) 244-3443 7th Floor Fax. (212) 244-8505 New YO(K, NY 10001

September 18, 2001

via Fax Ms. Peggy Nash 983-9563 General Manager (212) Leasing & Management 170 Broadway-Suite 412 New York, New York 10038

Re: 170 Broadway Clean-Up

Dear Ms. Nash: Dept. of Based on an earlier telephone conversation with Mrs. Norma Richardson (NYC Inc. (Hygienetics) recommends Environmental Protection), Hygienetics Environmental Services, order to facilitate the re-occupancy of that the following sequence of events should be followed in building employees and tenants: present (>1.0% asbestos 1) For the areas where bulk sampling has indicated that asbestos is content) or are assumed to contain asbestos materials, a New York State Licensed Asbestos Abatement Contractor should be retained to properly address these areas. Air sampling must be performed by a third party in accordance with Title 15 (RCNY). Asbestos Abatement Contractor. 2) All HVAC filters will be removed and disposed of by an New filters shall be installed with the air being recirculated (no fresh air intake) prior to Contractor. At this time a walkthroughtvisual demobilization by the Asbestos Abatement there has been no additional releases of bulk inspection will be performed to insure that Asbestos Abatement Contractor can address these materials from the IVAC system. The The need for additional air sampling will be areas as needed prior to demobilizing. further clean-up activities performed by the Asbestos determined by whether or not there is Abatement Contractor. dust, and bulk samples have 3) For the areas where there has been minimal accumulations of cleaning contractor may be used as been reported as note-asbestos-containing, a traditional cleaning contractor long as "wet methods" and/or HEPA equipped vacuums are utilized. The has demobilized. The will perform all activities once the Asbestos Abatement Contractor intake). HVAC equipment will continue to recirculate air (no fresh air 4) HVAC equipment can then be run at normal conditions.

Areas to be •addressed by the Asbestos Abate nment Contractor:

A.) Suite 1506 E) Exterior Window Sills 13) Suite 800 F) Suite 308 (10' x 10' treatment Room) C) Suite 1411 C) Suite 1206 (Empire Capital) D) Exterior Roof H) Areas not visually assessed during our initial inspection

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NYC-WTC 000105760