(Eric A., Corey G.)
After the BSC1 cleanroom was engaged we were given the go-ahead to finish the dirty job of roughing the concrete for the HAM12 Piers.  This work was completed around 5:30 (well, almost complete:  I cleaned up most of our mess, but there are quite a few items we need to put away---will leave this for tomorrow).  The floor around HAM12 was sweeped and then wet-mopped.  We also utilized a HEPA fan to help keep our mess to a minimum, and this worked out great (thanks Rick & Eric!).  I will close out our work permit tomorrow when our mess is cleaned up.