Chain of custody form for air monitoring, 375 South End

NYC 9/11 Public Portal Document 104 East 251i Sweet New York, New York 10010 WAV. ace GIVHT O.COM 212.353.8280 Fax 212.353:8306 eS sai ASSOCIATES UN October 21, 2001 ALC Environmental 415 W. 30th Street New York, NY 70001 Atri: Mr. Joshua Sarett Re: -Repert of TEM Analysis pear Mr. Sarett: Following are tne results of transmission electron microscopy (TEM) atlalysis of air samples from our Group No. 5736. Client: Gateway Plaza Mngt. Corp - Project Name. Parking Garage, Geleway Plaza Location: Various Sites Samples received: 10/22/01 4 These results. will-contirm and document the data transmitted today co you. -The analyses were performed in strict conformance with the methodology of the AHERA Final Rule (CFR October 39, 1987). for clearance of abatement sites. As indicated on the attached Summary Results sheet, no asbestos structures were detected in any of the fifteen samples submitted From. the site. Results reported as Struct/ce are a function of air volume wollected in the field and are; as. such, not verifiable: by. this laboratory. This report may be reproduced only in its entirety and not without prior permission é6f this laboratory. Tf. the: post- abatement. inside gamples pass, the response. action may be considered to have been completed. The analyses were supervised by pr. Michael A. Gorycki, Director of Blectron Microscopy. We are pleased. to note that our TEM lab has received full accreditation yom NVLAP, as is currently required for recognized analysis of TEM air samples for AHERA projects, and also approval under the NY State DOH ELAP program. These analyses were performed by ATC d/b/a ATC Assoclates inc. Please contact. me regarding any questions relating to these materials. Very truly yours, 5 -> LL. CC Sfers he, Michael A. Gorycki, Ph.D. Director of Electron Microscopy NYC-WTC_00011 7483