Laboratory analysis of ambient air samples from 22 River Terrace collected in September 2001, showing results below EPA standards.
NYC-WTC_000120883–000120884Folder label: “22 RIVER TERRACE Block: 16 Lot: 190 BIN: 1085929 Park Place, Warren Street”
OCR status: ocr · source: ours
NYC 9/11 Public Portal Document BK 22102 15:37 FAX ROCKROSE ig 005 * # . G C I ENVIRONMENTAL ADVISORY, INC. 655 Third Avenue New York, NY 10017 (212) 986-9460 Fax: (212)986-9464 February 15, 2002 Mr. Scott Walsh Rockrose Development Corp. 290 Park Avenue South New York, NY 10010 Re: 22 River Terrace, NYC Dear Mr. Walsh, GCl Environmental Advisory, Inc. collected ambient air samples within all of the apartments as well as various common spaces within the above referenced building during September 21 - 25, 2001. Air sampling was conducted within the building 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 caliorated with a primary standard. Sampling blanks were collected and submitted with each group of samples analyzed. Air sample anaiysis was according to NIOSH Analytical Method 7400 with results reported as fibers per cubic centimeter (f/cc). Laboratory Analysis performed by an ELAP approved and NIOSH PAT proficient laboratory. Laboratory analysis indicated airborne levels either below the current recommended "Clearance Air Criteria" of 0.01 fibers per cubic centimeter (f/cc) of air according to bea Phase Contrast Microscopy (PCM) or well below the Environmental Protection Agency J (EPA) standard for Transmission Electron Microscopy (TEM) of Seventy (70) Structures per cubic centimeter (Stuct/cc). Should you have any questions or need additional information, please contact me at (212) 986-9460. Sincerely, Environmental Advisory, Inc. JFG/gj QCi ENVIRONMENTAL ADVISORY, INC. PROJECT 2001 NO1-B4087.99R.TEM at cal Pa NYC-WTC_0001 20883
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