Users of BNC cleanroom and laboratories –

Until further notice, all hazardous gases in the BNC are shut down.  This is necessary to fully troubleshoot the fault that caused the evacuation earlier this morning.  Please see Coral for status of the systems affected by this shutdown.  Inert gases are still available, and all processes not using hazardous gases may run as normal.

I will send another e-mail when the gases have been restored.  Unfortunately, I do not have a timeframe in which that will happen – it depends on the length of time it takes to solve the problem.

For your information, the evacuation this morning was caused by an active alarm in the exhaust of a gas cabinet.  While initial troubleshooting points to a good probability that it was an actual leak, that has not been fully determined at this time.  More definitive information will be available when the troubleshooting has been completed.

Again, notification of the system restoration will be given both by e-mail and Coral status.

Thank you for your understanding,

John

John R. Weaver

Facility Manager

Birck Nanotechnology Center

Purdue University

(765) 494-5494

jrweaver@purdue.edu