The Respondent operates a frozen poultry storage facility. The Facility is located within several hundred feet of residences. Respondent uses 15,900 pounds of anhydrous ammonia in a refrigeration “process,” as defined by 40 C.F.R. ยง 68.3, in a system of pipes and vessels at the facility (the “Process”). On June 6, 2019, EPA inspectors visited the facility to assess Respondent’s compliance with Section 112(r) of the CAA, Part 68, and with Sections 302-312 of EPCRA.