(A) The Commission may permit the following uses when it determines them to be functionally beneficial to the extraction activity, appropriate to the location and environs, and not detrimental to adjoining lands:
(1) Concrete batching plants;
(2) Mixing plants for either portland cement or asphalt;
(3) Concrete block, pipe, beam, slab or panel plants.
(B) The permitted uses are subject to the performance standards, prescribed in § 152.024.
(C) The following site development requirements shall apply.
(1) Slopes. No production from an open pit shall be permitted which creates a finished slope steeper than one foot horizontal to one foot vertical for the excavation of products other than sand, except that in locations where the soil or rock content is such that vertical cuts are proven to be safe, a vertical cut up to eight feet in depth from ground level with a shelf no less than 12 feet wide followed by a vertical cut thereafter of any depth shall be allowed.
(2) Ingress, egress and traffic safety.
(a) Access roads to any plant area shall be limited to one, or at most two points and shall be constructed on a level with the pavement of any public street or highway for a distance of not less than 80 feet therefrom, and the 80 feet of road shall be improved with a dust proof all weather surface.
(b) Adequate sight distance shall be maintained for traffic safety in compliance with the standards and requirements of the local highway authorities.
(3) Off-street parking. Off-street parking shall be provided for all equipment and for cars of employees and visitors.
(4) Screens. Screen planting consisting of a variety of trees, shrubs or both in the same planting area, or a combination of seeded earth mounds and plant material screens shall be constructed and planted so as to form dense screens to a height appropriate to block the view of objectionable features and maintain along the perimeter of any area being operated where the perimeter abuts a public thoroughfare or a developed residential area, unless the Commission determines that the natural setting eliminates the need for a screen.
(5) Drainage. Upon the completion of operations, the land shall be left in a safe condition so that sufficient drainage shall be provided so as to prevent water pockets or undue erosion, with all grading and drainage so that both natural storm water leaves the entire property at the original, natural drainage points and that the area drainage to any one such point is not increased.
(6) Excavations. Excavations made to water producing depths, and proposed as water areas in the plan of development should have a minimum depth at some point of not less than six feet measured from low water mark.
(Ord. 2006-13, passed 4-3-2006; Ord. 2012-9, passed 7-2-2012)