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Updated WTC cleanup and monitoring SOWs, July 2002

Machine-extracted title · confidence 85%

Updated scopes of work for WTC cleaning and monitoring contracts distributed to multiple agencies for coordination.

NYC-WTC_000139539–000139558

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

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NYC 9/11 Public Portal Document

website, within 24 hours of completion of sampling.

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. I The Project Monitor shall record equipment used to collect the blower, fan, etc.) and size of space daily in the field notebook. In addii ate, rta npletion dates for the cleaning, sample media, flow media type, flow r^ start/final (average), tiffiC (start/finish), total elapsed time (min), calculate sample volume (L),; map fault, weather, units, QC samples (lot blank) sampling dates and Bple identification ni nbersfsamptelDs), , complete chain-of-custody forms, EPAProject TrackbgNumbers and laboratory address shall be entered into an agreed upon electronic format or webrite approved by EPA within 24 hours of activity.

Pre-cleaning and Post-cleaning Wipe Samplii 'rocedures

a. The Project Monitor will col^p-^pfi ilk r id post-cleanup wipe samples at 5 percent of the residences led up^ mum of 50 units per quadrant as instructed by EPA. This si ipling fi consist of the collection of 3 pre clean-up and 3 post clean-up wipe ^^les for )xin, total metals and mercury (Note; a separate wipe sample is required for ea.^1-paramet! I' Metals and mercury wipe samples will be collected iiO^cordanc ith pri lures specified in HUD Appendix 13.1. Dioxin wipe ipleswiUbe« Mccordance with the procedures specified bASTMBi 1.

ontractor shall document all the necessary information regarding sampling ies, fill out all field logs, data sheets, and chain-of-custody forms. The ictor shall use F2L for all sample and chain-of-custody documentation. Samples must be tabeled 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 hand-delivered for analysis to EMSL laboratories at: 307 W. 38* St., New York, New York 212-290-0051. Metals samples will be analyzed using EPA Method SW-846 601 OB. Mercury samples will be ed using EPA Method SW-846 7471A.

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 complete chain-of-custody forms and record the number of wipe

NYC-WTC_000139552

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NYC-WTC_000139552Source: NYC Law Department, mirrored locally

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