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← Document results/DEP Box 03/2002 E-Mail Sent M. Gilsenan
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WTC monitoring scope update, July 2002

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Updated WTC monitoring scope of work including technical notes on dust control methods and equipment.

NYC-WTC_000139560–000139573

Folder label: “2002 E-Mail Sent M. Gilsenan

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NYC 9/11 Public Portal Document

out all field logs, data sheets, and chain-of-custody forms. The 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 for analysis to EMSL laboratories at: 307 W. 38"’ St., New York, New York 212-290- 0051. k. All information must be maintained using the secure EPA website (url, user name and password to be provided by EPA). Dates for monitoring and/or cleaning shall be provided to EPA and DEP electronically in an EPA approved format within 24 hours. Information on sampling activities (date, sample ID) will be provided to EPA, via the website, within 24 hours of completion of evaluation.

Deliverables

The Project Monitor shall review all deliverables prior to submission to EPA. The review shall assure that each deliverable is accurate and complete, technically sound, and free of clerical errors.

The Project Monitor shall record all post-cleaning information in the EPA Indoor Air database or an agreed upon electronic format. This information shall include, but is not limited to sampling technique (aggressive or modified aggressive), visually cleaned (Y/N), damage claim (YZN), and post clean-up status (pass/fail). Dates and times shall be associated with all activities including start and finish date.

Additional information including but not limited to, absence ofdust/debris, equipment used (leaf blower, fan etc.), size of space, start and completion dates for the cleaning, sample media, flow media type, flowrates (start/final, flowrate (average), time (start/finish), total elapsed time (min), calculated sample volume (L), pump fault, weather, units, QC samples (lot blank), sampling dates, 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 ofactivity. Dates and times shall be associated with all activities including start and finish date.

15. The Project Monitor will complete a daily report which documents cleaning starts, continuations, completions, air sampling, recleaning and any delays or difficulties encountered.

Deliverables

The Project Monitor shall review all deliverables prior to submission to EPA. The review shall assure that each deliverable is accurate and complete, technically sound, and free of clerical errors.

NYC-WTC_000139572

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NYC-WTC_000139572Source: NYC Law Department, mirrored locally

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