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DEP memo regarding EPA scope of work roles, July 2002

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Internal DEP correspondence discussing EPA draft scope of work for WTC program and clarifying agency roles and responsibilities.

NYC-WTC_000138918–000138940

Folder label: “2003 E-Mails Sent M Gilsenan

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NYC 9/11 Public Portal Document

the collapse of the World Trade Center and if these systems require cleaning. a. In cases where cleaning is requested for an individual residence, portions ofthe HVAC system dedicated to that residence will be evaluated. b. In cases where cleaning is requested for a whole building, the building’s HVAC system will be evaluated as a whole. c. HVAC assessments shall be conducted in accordance with die National Air Duct Cleaners Association (NADCA) General Specification for the Cleaning ofCommercial Heating, Ventilating and Air Conditioning Systems and the NADCA Assessment, Cleaning and Restoration Standard (ACR 2002). d. The results ofthe whole building HVAC system evaluations shall be documented in a letter report. This report shall be provided to DEP and EPA within 2 business days ofthe completion ofthe evaluation. This reportshall include the name and qualifications of inspector, date ofinspection, building location, adescription ofthe HVAC system, the basis for the determining whether or not the system was impacted by the collapse ofthe WTC and if the system requires cleaning. Deliverables

The Project Monitor shall record ifthe 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 (ifyes, then when and by whom) and ifthe 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.

6. HVAC systems that have been impacted by dust or debris from the collapse ofthe World Trade Center will be cleaned. In the event that aHVAC 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 thereofcleaned to verify cleanliness. Ifvisible dust or other contaminants are evident through visual inspection or testing, then the Monitoring Contractor will direct the HVAC cleaning contractor to relean 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).

7. 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

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NYC-WTC_000138924

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NYC-WTC_000138924Source: NYC Law Department, mirrored locally

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