NYC Law Department release
Independent mirror · updated as the City releases more · v1.2.6
← Document results/DEP Box 03/E-Mails Hotline M. Gilsenan
Document / 24 pages

Final cleaning and monitoring scopes of work for WTC indoor

Machine-extracted title · confidence 95%

EPA delivers final scopes of work for WTC indoor dust cleaning and monitoring program to DEP.

NYC-WTC_000138805–000138828

Folder label: “E-Mails Hotline M. Gilsenan

Page image
Scanned page image, NYC-WTC_000138814
OCR text

OCR status: ok · source: pdftotext

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 Proj ect 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 pro-cleanup and post-cleanup wipe samples at 5 percent ofthe residences cleaned up to a maximum of 50 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 F2h for all sample and chain-of-custody documentation. Samples must be labeled and accompanied v/ith completed chain-of-custody forms before shipping to the designated laborator)\ 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, WilmingtonNC 28405

c. Personnel collecting n ipe samples shall be familiar wifii 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 Proj ect 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 o ,'crsec 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

9

NYC-WTC_000138814

OCR can misread numbers and units. Confirm readings against the page image before using them.

NYC-WTC_000138814Source: NYC Law Department, mirrored locally

Related records

Browse subjects →

Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.

Same-box records

Filed elsewhere

More like this page

Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.

Page similarity is temporarily unavailable or this page has no indexed vector.

Others also read

Readers open these alongside this record — through an Ask answer, the same folder, or indexed similarity. Not a claim they are about the same event.

Compare copies and versions →