Indoor air quality survey results, 75 Park Place, Sep 2001

NYC 9/11 Public Portal Document SEP-21-01 FRI 09:54 AM AMBIENT GROUP INC 0, 212 768 1540 P. 02/02 -_ ambient group ine. NatlONAl Vi APWIVAR LTRS 3g WESE pea sisal Indoor environmental quality surveys byue FLOOR Water treatment consulting NEW YORK, NEW YOUR moord BH asbestos & lead field services yes (aida qo4e7Br2 A Regulatory compliance programs FAX? (21) 404-9497 Air, water & soil analytical laboratories wi Bt WAWAMITENTGROL EL. COM _ we wre desk - oP | debut o dork b | 30° September 21, 2001 AA p 21% 4 el . ¢ J corner Mr. Mike Martin a“ pul- em ~“\ sor | J. Resnick & Sons covd 7§ Park Place New York, New York 10007 ae ee A Re: 75 Park Place ; 0 Ambient Project # 211358 oo ed lean Dear Mr. Martin: . . r Mr. in we- | wh B er The following is a summary of the indoor environmental quality survey that Ambient Group, Inc. performed on September 19", 200] at the above referenced location. The survey included sampling for airborne dust characterization and air sample collection for TEM analysis, as well as absence/presence of asbestos in settled dust. One (1) air sample was collected from the lobby by security desk, and analyzed by transmission electron microscopy (TEM) for asbestos structures. The results of the analysis indicated that airborne asbestos levels at the time of testing were less than the analytical sensitivity of the instrument, as well as well below the EPA standard of 70 structurcs/mm? and other recommended industry guidelines and/or regulations. Four (4) settled dust samples were collected from various locations on floors 2, 3, 9 and lobby and analyzed for the absence/presence of asbestos. All four (4) settled dust samples collected tested negative for the presence of asbestos. One (1) air sample was collected from the lobby by security desk and analyzed for dust characterization. ‘The sample was composed primarily of gravel road dust, carbon particles, fungal spores and cement dust. Although the concentrations of carbon particles and gravel dust were slightly elevated, the levels detected should not pose any adverse health concerns to the building occupants. Should you have any questions regarding this information, pleasc feel free to call me. Sincerely, Signed for Ambient Group, Inc. by: Cel P. Springston, ClIH, CSP Director of Field Operations CULN CAVE, BY MIAMI, FL. CEICAGE, 1 ORANGE, CA 516 Gag-o0ng 30g Booretat Ns 627-5526 pig, chares2s SEP-21-2881 10:26 cae NYC-WTC_000109597 96% P.@2