The following standards are required at the extraction site of any operation permitted under this chapter:
A. Machinery shall be kept in good repair.
B. Abandoned machinery, inoperable equipment and rubbish shall be removed from the site regularly.
C. All buildings and equipment that have not been used for a period of one year shall be removed from the site.
D. All equipment and temporary structures shall be removed and dismantled not later than ninety (90) days after termination of the extraction operation and expiration of the permit.
E. Where practical, stockpiles of overburden and materials shall be used to screen the extraction.
F. The perimeter of the site shall be planted or otherwise screened when such is determined by the city council to be necessary.
G. Existing trees, shrubs and ground cover shall be preserved to the extent feasible, maintained and supplemented by selective cutting, transplanting of trees, shrubs, and other ground cover along all setback areas. (Ord. 375, sec. 1, 5-1-1989)