Three wall castings for the Target Station Monolith (D02) were completed, leaving only two casting sessions before vault construction can begin. Base slab castings also progressed in the E-area lab buildings (E03, E05) . One in a series of SAT3 tests was successfully completed for the eight diesel backup generators in the H06 power substation as part of its testing and commissioning process. The generators serve as reserve power in the event of a general power failure, not to power the facility, but to safely shut down all systems. The erection of the Central Utility Building (H01) facade continued and excavation and piping are ongoing for the Sprinkler Building (H10) . Pressure testing for the CTL pipe installations was also performed.
