Kenton Station is a postal facility located at 2130 N. Kilpatrick Street in Portland, Oregon. (Ex. J-1). At all relevant times, its operations included delivery and collection services, retail services, mail distribution and dispatch, and post office box service. (Ex. C-44). The one-story building was constructed in 1964 and totaled approximately 8,000 square feet. (Ex. C-15 at 5, 12). It had a front lobby, a large workroom floor where mail was processed daily, a loading dock, men’s and women’s bathrooms, a custodial closet, a manager’s office, and a lunchroom. (Tr. 48, 75, 318). Mail processing required employees to use heavy equipment to wheel mail in and out of the workroom. (Tr. 267-68, 328).