michael.rodruck@LIGO.ORG - posted 15:41, Tuesday 29 March 2011 (670)
Ops Day Summary
- Praxair, Sprague, and UniFirst on site
- RO water serviced
- More work on removing grout by HAM7. Lots of dust. Second round of jackhammering started at about 22:20 UTC, ended at about 22:35 UTC.