Engineering firm report detailing noise criteria calculations for emergency generators in the Mayor's Office of Emergency Management space.
NYC-WTC_000171246Folder label: “Mayor's Office of Emergency Management®Emergency Generator Noise”
OCR status: ocr · source: ours
NYC 9/11 Public Portal Document 02/25/98 WED 14:05 FAX 212 725 08e4 = SHEN MILSOM: WILKE diooz _ A § if ag. “arr Aver. New York, NY 10016 7 AQU2) TRS-6800 Pax (212) 725-0864 Mr. Joseph Aliotta i, . oy Te 295 Lafayette Street ve : New York, NY 10012 o eo Re: Mayor's Office of Emergeacy Manages Emergeacy Generator, Noise Deat Joseph, In reponse to the request by Sitverstdin Propeiiiesp define the NCulevel.in tenant space surrounding the 7” floor equipment rovin wher the emergency generators operate, we offer the followingobraments. ap oe se Our calculations indicate noise criteria see. any sting the generator room will be sbout NC-50 to 55. This . iis higher than a typical fan room containing a packaged air conditioniag init wait is. neually NC-40 to 45. The generators produce a roaring soutid likerau i , truck engine rather than the heavy rumble associated withiAC units. ‘The’ , pdneds: ‘of the’ ‘generators iv, subjectively, about 40% greater than the AC unit. . But the important consideration is thist unlike fin his unit, the generators will not operate except during emergencios and after-hours die weekends for monthly testing. Your very truly, ‘ i SHEN MILSOM & WILKE, INC. a, Ye Min ; Denis Milsom, VP 4 - ba Project # 5149 . * ce: Michael Maybaum/Cosentini | i | NEW YORK 20-20: 390d NYC-WTC_000171246 ' ie sl | . ® WASHINGTON,DG ® FLORIDA © CHICAGO © HONGKONG © KUALA LUMPUR webs OPILEVISTST OL ' “GL7 HOHS:WOad 9T:e8T 86 Se-da4
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NYC-WTC_000167731
Correspondence requesting the basis for acoustical calculations determining noise levels in the emergency generator room.
1 shared topics · Same agency, volume and box · similarity 0.951
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000167730
Correspondence requesting the basis for acoustical calculations determining noise levels in the emergency generator room.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.924
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000167727
Letter submitting noise level data and comments regarding the 23rd floor emergency generator room in response to OEM requirements.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.921
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000172539
Engineering consultant memorandum dated August 2, 1999 related to 7 World Trade Center Mayor's Office of Emergency Management.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.890
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000172389
Correspondence from engineering firm regarding 7 World Trade Center Mayor's Office of Emergency Management project.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.888
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000174096
Memo detailing a generator load test conducted on August 31, 1999, identifying minor problems with pressure controllers and ATS switches at the Mayor's Office of Emergency…
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.887
machine-extracted · confidence unavailable · Check page ↗1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.886
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000171252
Fax cover sheet dated August 4, 1999, transmitting a field observation report regarding the Mayor's Office of Emergency Management at 7 World Trade Center.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.882
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000173475
Letter providing comments on submitted architectural plans for the Mayor's Office of Emergency Management.
2 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.875
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000167750
Inquiry regarding the resolution of a security issue and confirmation of the selected vendor for the Mayor's Office of Emergency Management project.
2 shared non-person entities · Same agency, volume and box · similarity 0.874
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000173529
Letter from law firm to City regarding administrative matter related to 7 World Trade Center.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.873
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000153017
Memorandum requesting portable gasoline generators to power air sampling equipment at World Trade Center disaster sites.
1 shared topics · similarity 0.885
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NYC-WTC_000167727
Letter submitting noise level data and comments regarding the 23rd floor emergency generator room in response to OEM requirements.
Filed in the same folder
NYC-WTC_000167731
Correspondence requesting the basis for acoustical calculations determining noise levels in the emergency generator room.
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NYC-WTC_000167730
Correspondence requesting the basis for acoustical calculations determining noise levels in the emergency generator room.
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NYC-WTC_000172539
Engineering consultant memorandum dated August 2, 1999 related to 7 World Trade Center Mayor's Office of Emergency Management.
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NYC-WTC_000172389
Correspondence from engineering firm regarding 7 World Trade Center Mayor's Office of Emergency Management project.
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