These Technical Reviews refer to the Mound Laboratories in Miamisburg, Ohio, an Atomic Energy Commission facility for nuclear weapon research that would go on to close in 2006. The purpose of this document is to notify the public of the addition of two Potential Release Sites (PRSs) PRS 253 and PRS 254 to the PRSs included in the Building R, SW, 58 and 68 Slab Action Memorandum. The two additional PRS are associated with the T-West Stack (PRS 253) and T-East Stack (PRS 254). Because these additional PRS are in the vicinity of the demolition and decontamination activities in the Building R and SW area, and because the Contaminants of Concern (COC) are the same as those outlined in the original Action Memorandum, incorporation of PRS 253 and ...