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WTC Cleaning Scope Authorization and Monitoring Procedures, Oct 2001

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Procedures for obtaining work authorization, monitoring residential and HVAC cleaning, and reporting hazardous conditions to EPA.

NYC-WTC_000140306–000140311

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

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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.

The Project Monitor shall record equipment used to collect the sample (leaf blower, fan, 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), t^B (start/finish), total elapsed time (min), calculated sample vo^ne (L), pump fault, weather, units, QC 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. .

4. Pre-cleaning and Post-cleaning Wipe Sampling Procedur«

a. The Project Monitor will coUe^' pre-cIeanup and post-cleanup wipe samples at 5 percent of the residences g^Shed up to a maximuitf of 50 units per quadrant as instructed by EPA. This sampling will consist of the collection of 3 pre clean-up and 3 post clean-up wipe samples for dioxin, tot^hnetals and mercury (Note: a separate wipe sample is req^^-Tor 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 _ Tin ASTMD 6661-01. 't? n ■ b. ' The contractor shall document all the necessary information regarding sampling activities, 1111 out all Held logs, data sheets, and chain-of-custody forms. The contractor .shall use 1 21. forall 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 Samples will be packed, sealed and hand-delivered for analysis to EMSL laboralorie.s 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 Bi samp^^?ill be analyzed using EPA Method SW-846 7471 A.

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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_000140308

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NYC-WTC_000140308Source: NYC Law Department, mirrored locally

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