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Document / 9 pages

FAX cover letter regarding DEP correspondence, Feb 2002

Machine-extracted title · confidence 92%

Cover sheet accompanying a response to a Department of Environmental Protection inquiry with referenced documents.

NYC-WTC_000117288–000117296

Folder label: “33 RECTOR ST 1000792, 17/27

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NYC 9/11 Public Portal Document 02/28/02 10:51 FAX ROCKROSE Q 004

G-CI 655 Thud k nue New Volk NY 10017 INC. (212) 986.9460 FW. (212)986-9464

September 28, 2001 Mr. Frank Vasta Rockrose Development Corp. 309 East 45th Street New York, NY 10017 Re: 333 Rector Street, NYC - Rental Office Deer Mr. Vasta, GCI Environmental Advisory, Inc. has collected ambient air samples withl',n the above referenced apartment as well as the apartments and common areas of the above referenced building during September 24 - 26, 2001. Air sampling was conducted within the apartment utilizing 0.8 u, MCE sampling cassettes employing high volume air sampling pumps during "normal" building activities.. A minimum of Nine Hundred (900) liters of air was collected to provide a detection limit below 0.01 f/cc (fibers per cubic centimeter). All samples were pre- and post-calibrated by means of a precision rotometer that had been calibrated with a primary standard. Sampling blanks were collected and submitted with each group 3 of samples analyzed. Air sample analysis was according to NIOSH Analytical Method 7400 with results reported as fi bers per cubic centimeter (f/cc). Laboratory Analysis performed by an ELAP approved and NIOSH PAT proficient laboratory. Laboratory ' analysis indicated airborne levels below the current recommended "Clearance Air Criteria" of 0.01 fibers per cubic cen öter1f/cTbf air according to Phase Contrast Microscopy (PCM). Should you have any questions or need additional information, please contact me at (212) 986-9480.

sory, Inc.

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OC1 ENVIRONMENTAL ADVISORY. INC. PROJECT 2001 Pt0144087.333.APT.PCM

NYC-WTC 000117292

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NYC-WTC_000117292Source: NYC Law Department, mirrored locally

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