Scott L. Ed P. Joe D.

Starting at X-1-7 double doors and moving north towards single door.

Vacuumed tube supports and sprayed bleach/water mixture on soiled areas of floor. Cleaned D I water tank and vacuum machines. We have started cleaning the machines every time we fill the D I tank. 
Sampled dirty sections posted here.
We are installing support tube caps on previously cleaned supports.
Started tube washing after lunch and cleaned 28 meters to the north.
Continuous monitoring of beam tube pressures by control room operator during cleaning operations.