Attachment B to residential cleaning study document, May 2002

NYC 9/11 Public Portal Document

The sampling program to be implemented is summarized in Section 4. Specific details of sampling activities/protocols/methods performed during the Cleanup are presented in the Sampling and Analysis Plan and associated QAPP. All activities performed under the Cleanup Plan will be performed in accordance with the health and safety protocols presented in the Health and Safety Plan.

1. Support Facilities:

This project will require office space large enough to support numerous activities including public relations, public availability, technical support, communications, data collection and presentation, contractor support and USEPA management. Portable trailers cannot be used in the area due to space constraints, therefore office space in the immediate vicinity of the cleanup will be rented for the duration of the study. Security needs will be determined for support areas and the study building.

2. Building Access and Assessment:

Prior to entering the building, USEPA will obtain a signed access agreement with the building owner(s) and prior tenant(s). These documents will be prepared by USEPA attorneys and signed copies will be kept on file. Once access is obtained the entire building and each apartment will be inspected for safety concerns including: gas/oil/water leaks, perishable foods, rodent/insect infestations, individual or common heating/cooling systems, damaged fioors/walls/roofs, common areas, stair ways and elevators. All safety concerns will be noted/evaluated and repaired (if necessary) prior to beginning the cleanup.

3. Photo Documentation and Inventories:

Photo documentation of all building interiors will be conducted and catalogued in an index. The building owner and tenant will be requested to accompany USEPA during this event. Inventories of personnel belongings will be developed and owners will be permitted to remove valuables. This documentation is for the benefit of all parties involved. Measurements of the apartment and details of the interior decorating (fumiture/carpets etc.) will be obtained to develop a floor plan of the living space. The floor plan will be utilized to locate and document sample locations while the cleanup is progressing. Bulk samples of dust will be obtained (if possible) for laboratory analysis and subsequent evaluation.

4. Cleaning of common areas:

USEPA will clean building exterior areas (if necessary) prior to begiiming interior work. The work will be performed by a subcontractor utilizing vacuum trucks equipped with HEPA filtration. All foyers, stair ways, hall ways, elevators/shafts, and common heating systems will be vacuumed using commercial quality HEPA vacuums. Cleaning of common areas will begin at the building entrance and proceed to the upper level then return down to the entrance. Plastic curtains will be installed at the interface of clean and non - clean areas to prevent re - deposition

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