OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document / t t
December 17, 2002 114 LIBERTY STREET REMOVAL OF DUST, DEBRIS, AND CONTAMINATED MATERIALS
9. The Contractor shall isolate the Work Area for the duration of the work by completely and individually sealing off all openings, windows, skylights, etc. with two (2) layers of polyethylene sheeting. 10. The clean side of these barriers shall be monitored by Ambient Group, Inc. If at any time airborne concentrations for any of the target metals exceed their respective exposure limits and/or airborne fiber concentrations are equal to or exceed 0.01 fibers/cc, the Contractor shall halt all operations and shall be required to completely clean all areas as directed by the Owner.
11. The contractor shall completely cover the floor of the Work Area with two (2) layers of reinforced polyethylene sheeting.
12. All polyethylene sheeting shall be securely attached to walls, floors, etc. with quality "duct tape", glue, and/or mechanical support.
13. The Contractor shall Install a sufficient number of negative air filtration units in the Work Area, as well as window mounted HEPA filtered manifold systems for make-up air, to provide both a minimum of four (4) air changes per hour and 0.02” wc negative pressure.
14. The removal operations will not begin until the Work Area has been inspected and approved by Ambient Group, Inc. A minimum differential pressure between the Work Area and adjacent occupied spaces shall be negative 0.02 inches water gauge. The contractor shall install a manometer by the personal decontamination chamber in order to verify and monitor the pressure differential.
END OF SECTION 07
34 © AMBIENT GROUP, INC. -2002
TEMPORARY ENCLOSURES AND WORK AREA PREPARATION
NYC-WTC_000155751
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NYC-WTC_000155525
Initial draft of the comprehensive scope of work required to safely clean 114 Liberty Street following environmental damage.
53 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 1.000
machine-extracted · confidence unavailable · Check page ↗49 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.998
machine-extracted · confidence unavailable · Check page ↗48 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.998
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000155168
Draft cleaning procedures and contract documentation for 114 Liberty with minor revisions, shared with EPA for review and comment.
12 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.976
machine-extracted · confidence unavailable · Check page ↗14 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.972
machine-extracted · confidence unavailable · Check page ↗14 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.972
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000155394
Transmission of cleanup and environmental monitoring documentation for 114 Liberty post-WTC dust remediation project.
14 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.972
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000138892
Forwarding draft cleaning procedures for 114 Liberty Street to EPA for review and comments.
12 shared non-person entities · 1 shared topics · similarity 0.975
machine-extracted · confidence unavailable · Check page ↗12 shared non-person entities · 1 shared topics · similarity 0.973
machine-extracted · confidence unavailable · Check page ↗14 shared non-person entities · 1 shared topics · similarity 0.973
machine-extracted · confidence unavailable · Check page ↗14 shared non-person entities · 1 shared topics · similarity 0.972
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000107535
Resident request for DEP to perform cleaning and monitoring work at an apartment in Manhattan.
17 shared non-person entities · 1 shared topics · similarity 0.972
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NYC-WTC_000155525
Initial draft of the comprehensive scope of work required to safely clean 114 Liberty Street following environmental damage.
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NYC-WTC_000134132
US EPA Region 2 letter dated November 15, 2005, confirming completion of environmental review for abatement plans at 133-135 Greenwich Street.
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NYC-WTC_000134871
EPA Region 2 letter regarding revised environmental work plan submission for two buildings including asbestos, health, and safety assessment components.
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