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Indoor dust cleaning program Scope of Work, August 2002

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EPA final scope of work documents for monitoring and cleaning operations in World Trade Center indoor dust remediation program.

NYC-WTC_000139005–000139028

Folder label: “2003 E-Mails Sent M Gilsenan

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NYC 9/11 Public Portal Document

The Project Monitor will keep a field notebook, document the size ofthe sampled area, sampling locations (including a field sketch) and equipment used to collect the samples (leafblower, fan, etc.). In addition, date, start and completion dates for the cleaning, sample media, flow media type, flow rates (start/final), flow rate (average), time (start/finish), total elapsed time (min), calculated sample volume (L), pump fault, weather, units, quality assurance samples (lot blank) sampling dates and sample identification numbers (sample IDs), complete chain-of-custody forms, EPA Project Tracking Numbers and laboratory address shall be entered into an agreed upon electronic format or website approved by EPA within 24 hours of activity.

8. Pre-cleaning and Post-cleaning Wipe Sampling Procedures

a. The Project Monitor will collect pre-cleanup and post-cleanup wipe samples at 5 percent ofthe residences cleaned up to a maximum of50 residences as instructed by EPA. This sampling will consist ofthe collection of3 pre cleaning and 3 post cleaning wipe samples for dioxin, total metals and mercury (Note: a separate wipe sample is required for each parameter). Metals and mercury wipe samples will be collected in accordance with procedures specified in HUD Appendix 13.1. Dioxin wipe samples will be collected in accordance with the procedures specified in ASTMD 6661-01.

b. The Monitoring Contractor will document all the necessary information regarding sampling activities, fill out all field logs, data sheets, and chain-of-custody forms. The Monitoring Contractor shall use F2L for all sample and chain-of-custody documentation. Samples must be labeled and accompanied with completed chain-of-custody forms before shipping to the designated laboratory. The label must include the EPA Project Tracking Number. Samples will be packed, sealed and shipped daily by courier for next day delivery to Paradigm Analytical Laboratories at: 2627 Northchase Parkway SE, Wilmington NC 28405

c. Personnel collecting wipe samples shall be familiar with and experienced in the collection of wipe samples using the specified sampling method.

Deliverables

The Project Monitor will keep a field notebook and document sampling locations (including a field sketch). The Project Monitor shall complete chain-of-custody forms and record the number of wipe samples, EPA Project Tracking Numbers, the laboratory address, date, and sample IDs in an agreed upon electronic format or website approved by EPA within 24 hours of activity.

9. The Project Monitor shall schedule and oversee the cleaning operations ofthe Cleaning Contractor. Prior to initiating the cleaning ofany residence, common space or HVAC system the Monitoring Contractor shall verify that the exterior ofthe building has been cleaned or has been inspected and

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NYC-WTC_000139014

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NYC-WTC_000139014Source: NYC Law Department, mirrored locally

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