Kyle R., Chris S. 

Today Chris S. and I took an FTIR sample from the closed gate of the 12.8" GV that isolates IP11 (VAT s/n 0002, see also https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=41353).  Additionally, we opened a new 12.8" GV (in clean room, VAT s/n 0005) and took a comparable swab from the same side of its closed gate.  In both cases, the swiped area was ~20% of the exposed gate surface area.