Work completed for Thursday:

1) Shielding filler blocks removed from M9Q1Q2 hole. Highest field was 5mSv/h coming from TSH0081 on the end facing the monolith. Blocks and frame had 1000-1200 CPM of contamination.

2) Filler blocks were placed in bunker formed by 18' shielding blocks. An additional 18' block was placed over the bunker to shield the south mezzanine from the field coming from the filler blocks. Bridge setup around M9T2 hole reconfigured slightly for fall protection purposes.

3) Blanking plate nuts on T2M9 exit port were tightened by 1/2 turn at 16:00 (first West side then east, by 1/4 increments. eg 1/4 + 1/4 West, 1/4 + 1/4 East). No immediate effect on vacuum observed.

Attached is survey of steel filler shielding blocks. Contamination on the support frame is unknown, either 0 contamination or not recorded.