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Indoor environmental quality survey fax, Nov 20, 2001

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Fax cover sheet from Ambient Group dated November 20, 2001 regarding indoor environmental quality surveys.

NYC-WTC_000097703–000097712

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

NOV-20-01 TUE 0601 PM AMBIENT GROUP INC FAX NO. 212 768 1540 P. 02

LJL ambient group lnl:. NATIONAL k14ADgUARTCtts

Indoor environmental quality surveys r, WI ^`TT 391, Srfua7T Water treatment consulting IZm MOOR Asbestos @ load field services N1,W YORK, NW YORK too18 Regulatory compliance programs YI.L C22) 463-78ra

Air, water & soil analytical laboratories t'AX: (2t2) 463-9397 wee: WwwAMa!utrr,eOUP.COM

November 20, 2001

Mr. Elliot Zuckerman Cushman & Wakefield 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 Ambient Group, Inc. performed on November 15, 2001 at the above referenced Iocation. The survey included sampling for airborne metals, polynuelear aromatic hydrocarbons and airborne asbestos structures by TEM.

Four (4) air samples were collected from floors 2, 3, 7 and 10 and analyzed for polynuclear aromatic hydrocarbons in air. Analysis of all four (4) samples collected revealed that the levels of the individual compounds were below the OSHA Permissible Exposure Limits and NIOSH REL guidelines,

Four (4) air samples were collected from floors 2, 3, 7 and 10 and analyzed for metals in air (including silica). All measured metals revealed levels well below their respective OSHA PELs and NIOSH RELs.

Please refer to attached laboratory data sheets for further details, Results for the remaining parameters tested will be made available as soon as the analysis is completed. Should you have any questions regarding this information, please feel free to call me. Sincerely, Signed for Ambient Group, Inc. by:

Jon either cc- esident

OLLN COVE NY MIAMI, PL CHICAGO. It $t6 609 tfoU~ CIRANOP. CA 86o-OIni 3'Z 5Z7-55z6 II4 IAA-2525

11/20/01 TUE 18:04 [TX/RX NO 85561

NYC-WTC000097703

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NYC-WTC_000097703Source: NYC Law Department, mirrored locally

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