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Forwarded NYC.gov inquiry regarding WFA office coordination, Oct 2002

Machine-extracted title · confidence 85%

Internal memo forwarding a citizen inquiry submitted via NYC.gov to DEP staff requesting coordination of a response regarding World Trade Center related matters.

NYC-WTC_000151871–000151878

Folder label: “WTC Inquiries/Correspondence/Complaints/Referrals

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NYC 9/11 Public Portal Document

. JPage -2 • 'I all of these concerns will be addressed as the program moves forward, as well as whether you intend to expand the geographic scope of the program to include a broader area that includes all residences and businesses-including the Chinatown community-that may have been affected by the attacks.

I would also like to take this opportunity to request information and clarification regarding the following aspects of the scopes of work:

• When is the testing and cleanup work expected to begin, and when is the work expected to be completed? Until what date will people be able to request testing and cleanup assistance-will the deadline be extendi beyond September 3,2002?

• It would appear from the scopes of work that there will be pre-cleaning and post-cleaning wipe sampling for dioxin, total metals and mercury, as well as post-cleaning air sampling for asbestos. Is this the case and, if so, why is there no pre-cleaning air sampling for asbestos or pre- and post-cleaning wipe sampling for other contaminants? How were these contaminants decided upon for pre- and post-cleaning sampling?

• It would appear from the scopes of work that there will be pre-cleaning and post-cleaning wipe sampling for dioxin, total metals and mercury, as well as post-cleaning air sampling for asbestos. Is this the case and if so, why is there no pre-cleaning air sampling for asbestos or pre- and post-cleaning wipe sampling for other contaminants? How were these contaminants decided upon for pre- and post-cleaning sampling?

• How were sampling and cleanup equipment and methodologies decided upon, including the asbestos clean-up criteria of 0.0009 fibers/cc? Is this the criteria that achieves the lO"^ cancer risk that was mentioned in EPA’s fact sheet on the cleanup and testing plan? If so, how was the lO"^ risk factor decided upon, versus a more protective risk factor of 10-®?

• Why are the filing of asbestos project notification forms, the posting of warning signs, and the wearing of personal protective equipment only required during a Scope B cleanup? Why is the use of personal protective equipment required only during aggressive air sampling activities? Has the Occupational Safety and Health Administration (OSHA) been consulted with respect to these aspects of the scopes of work?

• The scope of work for the cleaning contract indicates that‘HVAC systems that are determined to be impacted by dust and debris from the collapse of the World Trade Center will be cleaned!’ How will it be determined that systems have been impacted? With respect to individual HVAC intake/discharges, how was it decided that only one foot of the ductwork would be cleaned?

• Will there be any notification provided to building residents when any testing or cleanup is taking place in a building, whether the testing/cleanup is being conducted in a common area or in an individual unit? How is EPA proposing to address concerns regarding

NYC-WTC_000151877

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NYC-WTC_000151877Source: NYC Law Department, mirrored locally

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