(a) Earth berms required under this Chapter shall consist of raised earth with side slopes of three-to-one or flatter with a four-foot-wide flat or slightly rounded crest contoured to the side slopes to facilitate maintenance.
(b) Berms shall be covered with grass or other ground cover to prevent erosion. Berms shall also be landscaped with plant materials. A detailed landscape plan with a plant material list, including quantity, species, minimum size and spacing, shall be submitted with the site plan and approved by the Commission.