EPA letter to DEP regarding visual assessments of building exteriors for debris in January and February 2002.
NYC-WTC_000151612–000151617Folder label: “WTC DC TO RC LETTERS CALLEHAN WHITMAN ETC. WARD DOCTOROFF KENNY”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Building Facade Clean-up
Work shall be performed by a NYSDOL licensed asbestos contractor with NYCDEP and NYSDOL asbestos certified workers.
The contractor performing the cleaning should be experienced in cleaning building facades.
The area below the facade cleaning shall be covered with a layer of polyethylene sheeting and all debris and water must be collected for disposal as ACM waste (i.e. All waste must be double bagged in ACM waste labeled bags.)
B’uiding occupants shall be notified prior to the facade cleaning. Access to the street below the tapade cleaning shall be restricted and marked with caution tape. Cleaning shall not be performed during wind speeds greater than 20 mph.
All HVAC systems and air conditioners shall be turned off. All windows shall be closed during the cleaning of the building. Some air conditioners and windows may require sealing with duct tape to prevent water penetration.
In cases where equipment is rigged from the roof: All clean-up activities on the roof must be completed prior to rigging equipment from the roof.
All horizontal surfaces and all windows on the facade shall be cleaned of large bulk material by wetting and brushing, by wet wiping and/ or by HEPA vacuuming from top to bottom. The removed material shall be immediately placed into containers (e.g. bags). Windows shall be wet wiped. Free running water shall not be evident during this procedure. Power for HEPA vacuums shall be supplied through ground fault interrupters.
After completing the above, the entire facade shall be carefully washed. A low pressure washing technique, moving from top to bottom, shall be employed to minimize water bounce-back
At the completion of work, a visual inspection of the abated surfaces and sidewalk shall be performed to verify die absence of visible debris.
Air monitoring shall be performed by an independent NYSDOL licensed third party air monitoring firm with certified workers.
In order to minimize disruption to the public and to the building occupants, it is recnmmRnHpiH this work be pcrlormed during off-hours.
February 27,2002
NYC-WTC_000151614
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Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.
NYC-WTC_000151401
A letter summarizing visual assessments of outdoor clean-ups and debris presence on buildings near the World Trade Center site.
8 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.999
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000150839
Report on DEP and EPA visual assessments of debris on building exteriors in January and February 2002.
5 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.987
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000150846
Application form detailing cost estimates for asphalt and gravel roof clean-up per square foot.
5 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.986
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000150987
Contract excerpt defining regulatory compliance requirements and describing visual assessments of debris on building exteriors near the World Trade Center.
5 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.981
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000163676
EPA communication to federal and NYC agencies regarding post-9/11 environmental response.
6 shared non-person entities · 1 shared topics · similarity 0.984
machine-extracted · confidence unavailable · Check page ↗6 shared non-person entities · 1 shared topics · similarity 0.982
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164936
Corrected contract addendum addressing errors in prior documentation updates.
5 shared non-person entities · 1 shared topics · similarity 0.981
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000163668
DOH inquiry to DEP about EPA scope of work document and required addendum regarding ACM presumption language.
6 shared non-person entities · 1 shared topics · similarity 0.981
machine-extracted · confidence unavailable · Check page ↗5 shared non-person entities · 1 shared topics · similarity 0.981
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000143163
Application document outlining scope of work for building exterior cleanup in compliance with federal and state environmental regulations.
5 shared non-person entities · 1 shared topics · similarity 0.980
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164949
Contract documentation with addendum defining scope of work for environmental assessment.
5 shared non-person entities · 1 shared topics · similarity 0.979
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164311
Internal departmental communication regarding review of delineated areas, bid sheets, and draft contract document for WTC-related work.
5 shared non-person entities · 1 shared topics · similarity 0.979
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_000151341
Administrative notice requiring preservation of original World Trade Center documents as evidence for potential future legal proceedings.
Filed in the same folder
NYC-WTC_000151342
Letter reporting DEP air monitoring results for particulate and fiber at a specific agency office showing levels below detection.
Filed in the same folder
NYC-WTC_000151345
A memorandum outlining required procedures for building owners to follow when cleaning up debris and dust affected by the WTC attack.
Filed in the same folder
NYC-WTC_000151348
A memorandum outlining required procedures for building owners to follow when cleaning up debris and dust affected by the WTC attack.
Filed in the same folder
NYC-WTC_000151350
A DEP letter describing joint agency efforts to sample air, dust, and water in Lower Manhattan following the September 11 attacks.
Filed in the same folder