Respondent owns and operates a refrigeration system which consists of buildings, equipment, structures, and other stationary items which are located on a single site or on contiguous or adjacent sites, and which are owned or operated by the same person. On June 21, 2004, under Section 112(r) of the Act and implementing regulations at 40 C.F.R. Part 68, Respondent submitted to U.S. EPA an RMP for the Facility. EPA received the RMP on June 22, 2004. According to the RMP submitted to U.S. EPA by Respondent, the Facility: