Upper levels, near surface ... NB229 B5 P76 ... NB229 B2 P88
Original stratum: MT: Room E, floor 1 Temp Lot Number: 287 ... MT: Room E (P-Q:26), removal of floor 2 (as published)
NB228 B6 P76 ... NB228 B1 P104 ... NB228 B1 P107
Original stratum: LT: Building C, Room 3, fill over benches ... NB515 B76 P94 ... NB515 B80 P98 ... NB515 B74 P91