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WTC Dust Cleaning Scope of Work Draft, Aug 2002

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Draft scope of work document detailing compliance requirements and procedures for residential cleaning and air sampling south of Canal Street.

NYC-WTC_000140537–000140550

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

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NYC 9/11 Public Portal Document

Deliverables

The Project Monitor shall submit upon request a field package consisting offield sheets, field notes (copy), and chain-of-custody forms (copy), which shall be delivered to the EPA via fax, or an alternative format agi'cetl upon. The Monitoring Contractor must sign and date all field sheets, field logbooks and chain-of-custody terms. This data shall be provided daily upon request at the activity completion.

14. The Project Monitor shall perform final visual inspections within 2 hours ofthe completion ofthe cleaning. Ifall areas are not dust free at that time, then the Project Monitor will direct the Cleaning Contractor to reclean as necessary. If all areas are dust free, then the Project Monitor will authorize final air sampling. Final inspections shall be documented using the Cleaning Checklist.

Deliverables

The Project Monitor shall submit to EPA, upon request, copies ofthe field notebook pages via e- mail, fax, or alternative agreed upon format.

15. Post Cleaning Air Sampling Procedures a. Sampling shall not begin until a visual inspection confirms the absence ofvisible dust and debris. Post cleaning air sampling shall be performed upon successful visual inspection and completed within 24 hours. A successfill visual inspection shall be an inspection that verifies the absence of dust and debris. b. All surfaces must be completely dry prior to the start of sampling. c. Upon completion ofthe cleaning, air sampling will be conductai to verify attainment ofthe clean-up criteria. Basal on consultation with the resident or owner, aggressive or mods lied aggressive air sampling will be conducted. Residents shall not be present during aggressive air sampling. 1. Before beginning a^essive air sampling, a 1 horsepower electric leafblower 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 furnishings 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 shaUnot be operated during aggressive air sampling.

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NYC-WTC_000140547Source: NYC Law Department, mirrored locally

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