Pumping was restored to 1A today by Vacuum Group and the beam line returned to normal vacuum levels.  Both cooling packages were started with no change in vacuum (no water leaks inside the vacuum volume).  The T2 package was left on for approximately 1 minute, and then the expansion tank level was checked.  Approximately 1cm of water was lost.  The T2 package was turned off, and will remain off until the package can be inspected later this week after block removal.  The T1 package will be left running until T1 MRO work begins.