4 shared non-person entities · 1 shared topics · similarity 0.986
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NYC-WTC_000232566
Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000232566–000232568Page image
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NYC 9/11 Public Portal Document
104 East 25‘* Street 10"' Floor New York, New York 10010-2917 212.353.8280 Fax 212.353.8306 ASSOCIATES INC.
Mr. Bernard P. Orian February 5. 2002 Page 2
• Following the cleanin o: ihese areas, a visual inspection shall be conducted by an independent third par: w- >iect monitoring firm and/or New York City School Construction fNYCSi \ i epresentatives to \-erify that all surfaces have been properly cleaned and are free . ■. hie diisfdcbris.
Prior 10 (o^t^ressive oi .Hpliiig, to ensure iiir quality is not ajfected, the following shall be done: As ae. mtion, install filter material over each supply air diffuser prior to the activation of the mechanical ventilation system. The ventilation system shall he run for appr. xiruttely twenty four (24) hours. The system shall then be shut off and all external f liters shall be removed. Aggressive air monitoring shall then be conducted throughout the space with the ventilation system running.
• .Aggressive air sampi: e .lall be performed on a lloor-by-floor basis as the cleaning work is completed. .Air sa:- p-i ig shall be conducted in compliance with all applicable local, state and federal regi- : ns. In area.s where the ceiling system has not been removed, that is. where sheetre •ut'or pkisicr ceilings exist, aggressive air sampling shall be eonducleci both abo\. s : below :lie ceiling. .A I'C Associates Inc. will perform this air monitoring.
• Air samples shall be zed via 1 ransmissiun Electron Microscopy (TEM) methodology. Succi ' : air clearance shall be achieved when all air samples collected within the building :: !.)W 7(1 •^iructure.s per millimeter squared (<70 str/mm^) - TEM analysis.
Following successful ;■ elearanee sampling on each floor, the Contractor will install new ceiling tiles and/or ii .iccess mitehe.s where applicable on that floor. IVith the ventilation system rnohiig. rhe area below the ceiling.s will be recleanedfollowing the installation of new n o, rials.
Kiss Construction. Inc. lia . .n retained b\ \YCSCA for this project and is scheduled to commence work at 8:00 .A ' • u February 5. 2002. Kiss Construction has estimated that this work will be completed win uir weeks.
CITY_21MC100_003110964
NYC-WTC_000232567
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NYC-WTC_000232567Source: NYC Law Department, mirrored locally
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