A project proposal outlining the timeline, methods, and justification for cleaning HVAC systems in residential units affected by World Trade Center dust.
NYC-WTC_000147982–000148113Folder label: “EPA Indoor Air Cleanup”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
f 2
Status Report for the Interior Cleaning Study lAG ID Number; BMW-2002-lA-0126
Description of Work Completed:
The Residential Cleaning Study (RCS), also known as the Confirmation Building (Pilot) cleanup study, was initiated to evaluate different cleaning techniques that may have been utilized in the cleanup of residential spaces in the immediate vicinity of the former World Trade Center. The study involves implementing various cleaning techniques in separate apartments to determine their effectiveness. Comprehensive sampling for Contaminants of Potential Concern (COPC) was conducted throughout the study to determine which method of cleaning was most effective at removal of dust. The Contaminants of Potential Concern have been identified in a draft document, “WTC Indoor Air Assessment: Selecting Contaminants of Potential Concern and Setting Health-Based Benchmarks”. This is currently undergoing peer review with a report planned for mid December.
On June 17, 2002 EPA initiated field work associated with the RCS on a building located at 110 Liberty Street. The 5 stoiy building has 12 residential and 6 commercial spaces and has been unoccupied since 9/11. EPA has been evaluating 8 different cleaning techniques in separate units of the building. Cleaning techniques consist of basic vacuuming with standard household equipment to use of advanced commercial quality equipment. Wet wiping of horizontal surfaces was performed in each unit. Wet vacuums were used to clean carpets. Sampling was conducted prior to, during and after cleaning to determine the efficiency and effectiveness of each cleanup technique as well as possible exposures to individuals performing the task.
EPA has completed cleaning and sampling of all 12 residential and 6 commercial spaces. Six (6) residential spaces were cleaned twice and 3 residential spaces were cleaned a third time. Two (2) of the 3 commercial spaces required a second round of cleaning. Of the 6 commercial spaces, 3 were not part of the cleaning study but were cleaned and used to evaluate the cleaning and sampling of heating, ventilation and air conditioning (HVAC) systems. Post cleaning sample results collected from the systems are pending.
To date EPA has collected approximately 3,100 samples to evaluate cleaning techniques and possible exposures to contaminants. Approximately 2,676 samples (air, wipe and micro vacuuming) were collected to evaluate pre-cleanup and post cleanup efforts. Approximately 470 personal worker air samples were collected to evaluate potential occupational exposure levels. 1 Pending Activities:
The evaluation of the effectiveness of the various cleaning methods used will begin once we receive all sample results.
NYC-WTC_000147985
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NYC-WTC_000148621
Memo outlining DEP activities including assessment and coordination with federal agencies for street and sidewalk cleaning.
23 shared non-person entities · Same agency, volume and box · similarity 0.980
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000148115
Frequently asked questions and updates regarding disaster assistance, road reopenings, and victim support funds issued in October 2001.
25 shared non-person entities · Same agency, volume and box · similarity 0.979
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000144741
Standard administrative notice requiring the retention of original World Trade Center records as evidence for future legal actions.
25 shared non-person entities · 1 shared topics · similarity 0.983
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000151595
A generic internal routing slip used to process correspondence and reports related to the World Trade Center environmental cleanup program.
14 shared non-person entities · 1 shared topics · similarity 0.982
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000141478
Fax cover sheet from the Department of Environmental Protection addressed to EPA Region 2 regarding WTC environmental matters.
8 shared non-person entities · 1 shared topics · similarity 0.981
machine-extracted · confidence unavailable · Check page ↗8 shared non-person entities · 1 shared topics · similarity 0.979
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000161019
Memo distributing draft indoor air programs with revisions assigning data collection responsibility to OEM and removing HVAC section pending further development.
9 shared non-person entities · 1 shared topics · similarity 0.979
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000162086
Draft development of coordinated NYC-FEMA indoor air quality approach and response strategy for WTC-affected areas.
8 shared non-person entities · 1 shared topics · similarity 0.979
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000152985
A document page containing mostly unreadable characters and formatting artifacts, likely a scanned form or corrupted file.
8 shared non-person entities · 1 shared topics · similarity 0.978
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000141550
Draft plan describing agency roles and near-term actions to support residents and workers in Lower Manhattan.
9 shared non-person entities · 1 shared topics · similarity 0.978
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000143952
Joint announcement of a comprehensive plan by the EPA and city partners to address indoor air quality concerns in residential units south of Canal Street.
23 shared non-person entities · 1 shared topics · similarity 0.977
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000161317
Distribution of fact sheets, access agreements, and scope of work documents for World Trade Center cleanup program.
11 shared non-person entities · similarity 0.977
machine-extracted · confidence unavailable · Check page ↗Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
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NYC-WTC_000147977
Notice from the New York City Law Department instructing staff to preserve original World Trade Center documents for potential legal actions.
Filed in the same folder
NYC-WTC_000147978
Notice instructing staff to preserve original World Trade Center documents for potential legal actions against the City.
Filed in the same folder
NYC-WTC_000144741
Standard administrative notice requiring the retention of original World Trade Center records as evidence for future legal actions.
Similar indexed content
NYC-WTC_000151595
A generic internal routing slip used to process correspondence and reports related to the World Trade Center environmental cleanup program.
Similar indexed content
Fax cover sheet from the Department of Environmental Protection addressed to EPA Region 2 regarding WTC environmental matters.
Similar indexed content