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← Document results/DEP Box 33/1 NORTH END AVENUE Block: 16 Lot: 225 BIN: 1085502 4 River Terrace, 60 Vesey Street
Document / 11 pages

Indoor environmental quality survey report, Dec 7, 2001

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Letter from Ambient Group dated December 7, 2001 summarizing an indoor environmental quality survey.

NYC-WTC_000097647–000097657

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

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Indoor environmental quality survoys pp wtsT j91H srR1•d'T WaLcr treatment consulting 12,,, F1-0OIt Asbestos & rcad field services NLW YUR1v, Typ, Y0R3; cola Regulatory compliance programs TL (7d21 j44•.F615 Air, water $ soit analytical laboratories FA]L' (,:2) 944- 44:5 WHa: wwwAMnniNTCrLOurLCOM

December 7, 2001

Mr. Elliot Zuckerman Cushman & Wakefield a/a/f Mercantile Exchange One North End Avenue Ncw 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 4, 2001 at One North Ambient Group, Inc. End Avenue. 1-he survey included metals (including silica scan), polynuclear sampling for airborne aromatic hydrocarbons and airborne asbestos T13M. structures by

Four (4) air samples were collected from fl oors 3. 7, 10 and 12 and analyzed by microscopy (TGM) for asbestos structures. transmission electron The results of the analysis indicated that levels at the time of testing were less than airborne asbestos the analytical sensitivity of the instrument, the EPA standard of 70 structures/mm2 which is well below as well as other recommended industry regulations. guidelines and/or

Four (4) air samples were collected from floors 3, 7, 10 and 12 and analyzed for metals in silica). All mcasurod metals revealed air (including levels well below their respective OSHA PELs Levels of cristobalite and quartz detected and NIDS14 Rl3Ls. in the silica scan were also below the 0.05 mg/n13. NIOSH REL of

Four (4) air samples were collected from floors 3, 7, 10 and 12 and analyzed for hydrocarbons in air. Analysis of all four (4) polynuclear aromatic samples collected revealed that the Ievels of compounds were below the OSHA Permissible the individual Exposure Limits and NIOSI{ REL guidelines, Please refer to the attached laboratory data sheets for further details. Should you have any regarding this information, please feel free to call questions me.

Sincerely, Signed for A ient Group, Inc. by:

V ' John J. Leitner /G Vice President jJ ! ti 1J 7 !lint Attachments c1rtJ ellVL•. ' NY MIAMI, FL p:6 6c' -oon9 Cit[ceao, n. W RONA, CA ;os ahlrotol 211338 322 517-5p.6 go9 s72-.1,7 jo

12/07/01 FRI 18:26 [TX/RI NO 8736]

NYC-WTC 000097647

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NYC-WTC_000097647Source: NYC Law Department, mirrored locally

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