The purpose of the Limited Industrial District is to provide suitable areas for a range of industrial activities, while protecting the character of nearby residential and commercial areas. Permitted uses within the Limited Industrial District must operate:
(a) Primarily within enclosed structures.
(b) Free from noise, odor, dust, smoke, light, glare or vibration at levels in excess of the average level on adjacent streets and properties.
(c) Without imposing unusual additional burdens upon utility or governmental services.