Dr. David Woodward of Penn State has been at the Sanford Underground Research Facility (SURF) in South Dakota since November, working on the assembly of the LZ Test Cryostat, created by the Penn State group to test the cryogenic and liquid xenon systems of the LZ experiment before the actual detector is in place. Some more details can be found here at the SURF newsletter:
https://www.sanfordlab.org/article/lz-begins-new-phase-testing-xenon-circulation-system