Community Service Center, Cultural Exhibits, Libraries, and Museums; Neighborhood Centers; Religious Assembly. In the RS-4, RS-5, RS-6, RD-8, and RD-19 districts, (a) no facility shall contain a meeting hall, assembly room, or worship room capable of accommodating more than 500 persons under the Kalamazoo Fire Code, and (b) no facility shall contain more than 50,000 square feet of gross floor area. In the RM-15, RM-15C, RM-24, RM-36, and RMU districts (a) no facility shall contain a meeting hall, assembly room, or worship room capable of accommodating more than 1,000 persons under the Kalamazoo Fire Code, and (b) no facility shall contain more than 100,000 square feet of gross floor area. All facilities shall comply with the Operational Performance Standards for noise set forth in § 6.6.B: Noise