The landscaping crew will be working all day today, weather permitting. It is unlikely that the work will cause any issues to research in the building, but there may be higher levels of acoustic noise and other vibrations on the northeast side of the building. Please let me know if you have questions or have experienced any negative effects due to this work. Thank you for your patience during this project. John John R. Weaver Facility Manager Birck Nanotechnology Center Purdue University (765) 494-5494 jrweaver@purdue.edu