Contract excerpt defining regulatory compliance requirements and describing visual assessments of debris on building exteriors near the World Trade Center.
NYC-WTC_000150969–000150977Folder label: “DEP EXTERIOR CLEAN UP - Also See Building Lists #2”
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.)
Building occupants shall be notified prior to the facade cleaning. Access to the street below the facade 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 rurming 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 fagade 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 the 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 recommended this work be performed during off-hours.
February 27,2002
NYC-WTC_000150974
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NYC-WTC_000150962
Contract excerpt defining regulatory compliance requirements and describing visual assessments of debris on building exteriors near the World Trade Center.
10 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.992
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000150846
Application form detailing cost estimates for asphalt and gravel roof clean-up per square foot.
10 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.988
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.
10 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.983
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000151612
EPA letter to DEP regarding visual assessments of building exteriors for debris in January and February 2002.
5 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.977
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 0.977
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000151401
A letter summarizing visual assessments of outdoor clean-ups and debris presence on buildings near the World Trade Center site.
6 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.976
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.
10 shared non-person entities · 1 shared topics · similarity 0.991
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000135574
Memo summarizing the completion of exterior debris removal from downtown buildings in March 2003.
10 shared non-person entities · 1 shared topics · similarity 0.989
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000163676
EPA communication to federal and NYC agencies regarding post-9/11 environmental response.
10 shared non-person entities · 1 shared topics · similarity 0.975
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164936
Corrected contract addendum addressing errors in prior documentation updates.
10 shared non-person entities · 1 shared topics · similarity 0.975
machine-extracted · confidence unavailable · Check page ↗10 shared non-person entities · 1 shared topics · similarity 0.974
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.
10 shared non-person entities · 1 shared topics · similarity 0.974
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_000150781
Notice instructing staff to preserve original World Trade Center documents for legal evidence.
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NYC-WTC_000150782
List of Manhattan buildings with completed exterior cleaning by the New York City DEP.
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NYC-WTC_000150796
Survey data listing building addresses and owners in the World Trade Center vicinity.
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NYC-WTC_000150821
Survey data listing building addresses and owners in the World Trade Center vicinity.
Filed in the same folder
NYC-WTC_000150823
Financial summary of exterior cleaning contracts for multiple buildings including budget allocations and balances.
Filed in the same folder