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Indoor environmental quality survey fax, Dec 13, 2001

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Fax cover sheet from Ambient Group dated December 13, 2001 regarding indoor environmental quality surveys.

NYC-WTC_000097632–000097646

Folder label: “1 NORTH END AVENUE Block: 16 Lot: 225 BIN: 1085502 4 River Terrace, 60 Vesey Street

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NYC 9/11 Public Portal Document

- BEC-13-01 THU 06:56 PM AMBIENT GROUP INC FAX NO. 212 768 1540 P. 02

ambient group Inc. NAIIONAI III AL QUARTCRy

Indoor envlronmantal quality survey 55 WFST 3gu, srRItT Water is rx s con,- ting 12„I noon Asbestos Cs lead field services NI:W YOJK, rt•w flfl :oor8 Regulatory compliance programs TCL: i212 944-4615 Air, Water Q soil analytical laboratories rAx: (sr_) 91 t-46,5 wale W WW.AMan!N rcnout.L OM December 13, 2001

Mr. Elliot Zuckerman Cushman &~VVakcfleld a/a/f Mercantile Exchange One North End Avenue New York, New York 10282

Re: One North End Avenue Ambient Project # 211338

Dear Mr. Zuckerman:

The following is a summary of the indoor environmental quality survey that performed on December 5, 2001 at One Ambient Group, Inc. North End Avenue. The survey included metals (including silica scan), polynuclear sampling for airborne aromatic hydrocarbons and airborne TEM. asbestos structures by

Four (4) air samples were collected from floors 3, 7, 10 and 15 and microscopy ('rEM) for asbestos structures. analyzed by transmission electron The results of the analysis levels at the time of testing were less than indicated that airborne asbestos the analytical sensitivity of the the EPA standard of 70 structures/mm2 instrument, which is well below as well as other recommended regulations. industry guidelines and/or

Four (4) air samples were collected from floors 3, 7, 10 and lS and analyzed for silica). All measured metals metals in air (including revealed levels well below their respective Levels of cristobalite and quartz detected OSHA PELs and NIOSH RELs. in the silica scan were also 0.05 mg/m'. below the NIOSII REL of

Four (4) air samples were collected from floors 3, 7, 10 and 15 and analyzed for hydrocarbons in air. Analysis of all four (4) poiynuelear aromatic samples collected revealed that the levels compounds wore below the OSHA Permissible of the individual Exposure Limits and NIOSil REL guidelines. Please refer to the attached laboratory data sheets for further details. Should you regarding this information, please feel free to have any questions call me.

Sincerely, Signed for A bient Group, Inc. by: nt to1X11 ] . Le,~tner t/ ►Lr/~tNi 1 1(3/or Vice President

Junl Attachncnt GUN COVE, NY AIIAAR, FL CHICAGO, L. qrs 6oq-oogq ;op Sø-mor C.OUONA, CA 211335 312 Y27.55•l(. 909 272 . -47j0

12/13/01 THU 19:00 [TX/RX NO 8798]

NYC-WTC 000097632

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NYC-WTC_000097632Source: NYC Law Department, mirrored locally

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