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Draft scope of work for WTC dust cleaning, July 2002

Machine-extracted title · confidence 95%

Draft contract detailing EPA and DEP collaboration on residential dust sampling and cleaning services for residents south of Canal Street.

NYC-WTC_000140430–000140442

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

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NYC 9/11 Public Portal Document

HUD Appendix 13.1. Dioxin wipe samples will be collected in accordance with the procedures specified in ASTMD 6661-01. Wipe samples and copies of necessary documentation 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 g- 24-hour tum-around time shall be specified for the analysis ofall samples collected using the aggressive air sampling method. Standard tum-around time will be used for all other samples. h. 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 will use F2L for all sample and chain-of-custody documentation. Samples must be labeled and accompanied with completed chain-of-custody forms before dripping to the designated laboratory. The label must include the EPA Project Tracking Number. 1. All information must be maintained using the secure EPA website (url, user name and password to be provided by EPA). Information on sampling activities (date, sample ID) shall be provided to EPA, via the website, within 24 hours ofcompletion ofsampling. All data shall be maintained as confidential.

Deliverables

The Project Morritor will record equipment used to collect the samples (leafblower, fen, etc.) and size of space daily in the field notebook. 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 info an agreed upon electronic format or website approved by EPA within 24 hours'of activity.

I ! i 8. Pre-cleaning and Post-cleaning Wipe Sampling Procedures

a. The Project Morritor will collect pre-cleanup and post-cleanup wipe samples at 5 percent ofthe residences cleaned up to a maximum of50 residences per quadrant as instructed by EPA. This sampling will consist ofthe collection of3 pre cleaning and 3 post clearring i 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.

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NYC-WTC_000140437

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