A thirty-foot yard shall be provided along any property line adjacent to or abutting any residential zoning district notwithstanding any provisions contained herein. Said thirty-foot yard shall be heavily landscaped; in addition, sound attenuation or deadening devices or structures shall be provided as deemed necessary by the director of planning, the site and architectural design review board, the planning commission or city council. The purpose of this section is to protect residential areas located adjacent to zoning districts from deleterious or objectionable impacts that may be associated with uses which could locate in the M zoning district. (Ord. 2020-07 § 2, 2020; Zoning Ordinance dated 7/94, 1994)