Reports until 15:53, Monday 25 April 2011
H2 INS
michael.rodruck@LIGO.ORG - posted 15:53, Monday 25 April 2011 (757)
H2 PSL installation

More HVAC work. Ducting was extended to the LVEA wall and into the return air plenum - the contractors drilled a hole in the LVEA wall for this. They also began finshing work on the interior and exterior drywall, taping joints and patching over screws.

Dust counts were low for today. One spike to 5000 at the 2K PSL at 0.5 microns, but other than that it was below 3000 for the whole day.

Images attached to this report