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Scope of Work draft for World Trade Center dust cleaning,

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Draft outlining the direct assistance program for residents south of Canal Street, including cleaning and asbestos sampling services.

NYC-WTC_000140399–000140412

Folder label: “SCOPES OF WORK IN DOOR AIR & CLEANING

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NYC 9/11 Public Portal Document

subcontractor that is a member may perform the HVAC system evaluation and inspection. Deliverables

The Project Monitor shall record if the HVAC systems has been impacted by dust or debris from the collapse of the WTC, if the HVAC system has been evaluated and cleaned subsequent to September 11, 2001 (if yes, then when and by whom) and if the HVAC system requires cleaning. This information shall be provided via F2L or an agreed upon alternative electronic format or website approved by EPA within 24 hours of activity.

7. HVAC systems that have been impacted by dust or debris from the collapse of the World Trade Center will be cleaned. In the event that a HVAC system for an entire building requires cleaning, a separate, site specific contract will be awarded by DEP for this work. If only a portion of a HVAC system requires cleaning, then the Cleaning Contractor will conduct the cleaning utilizing specialized labor trained and experienced in duct cleaning. a. The monitoring contractor shall schedule and oversee the cleaning of HVAC systems. b. The Monitoring Contractor shall inspect HVAC systems or portions thereof cleaned to verify cleanliness. If visible dust or other contaminants are evident through visual inspection or testing, then the Monitoring Contractor will direct the HVAC Cleaning Contractor to reclean those portions of the system where dust or other contaminants are present and reinspect. c. HVAC cleaning, and cleanliness inspections shall be conducted in accordance with the National Air Duct Cleaners Association (NADCA) General Specification for the Cleaning of Commercial Heating, Ventilating and Air Conditioning Systems and the NADCA Assessment, Cleaning and Restoration Standard (ACR 2002).

8. Sampling of residences and common spaces where cleaning has not been requested a. Based on consultation with resident, aggressive or modified aggressive air sampling will be conducted. i. Before beginning aggressive air sampling, a I horsepower electric leaf blower shall be used to direct exhaust air against walls, ceilings, floors and other surfaces. This shall continue for at least five minutes per 1,000 square feet of floor. When directing the exhaust, caution shall be taken to minimize disturbance and potential damage to fiimishings and personal belongings ii. Residents shall not be present in their residence during aggressive air sampling activities. iii. Personal protective equipment including disposable clothing, gloves, and respirators shall be worn during aggressive air sampling activities. iv. HVAC systems shall be shut down or isolated locally during aggressive air sampling. V. Room and window air conditioners shall not be operated during aggressive

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NYC-WTC_000140405

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NYC-WTC_000140405Source: NYC Law Department, mirrored locally

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NYC-WTC_000140281 · Box DEP Box 05

Draft contract scope defining regulations and procedures for asbestos cleanup and air sampling assistance programs in Lower Manhattan.

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