Ski changed the RO filter
Removal of concrete at HAM8

Scheduled activities from morning meeting:
cleaning at mid and end x
HEPI prep at BSC4
drilling holes for HEPI piers at HAM7

Attached is a plot of 5 micron dust counts from 14:00 to 23:00 UTC. The spike at location 9 to ~1,810,000 particles per cubic foot occurred at approximately 15:59:07 UTC. Breaking concrete began around 16:16 UTC.