Permanent piles or dumps of mining waste and overburden shall be stable and shall not restrict the natural drainage without suitable provisions for diversion. Stable slopes at angle of repose shall be permitted as a final slope. Old equipment and other similar inert mining waste shall be removed or buried. Toxic material shall be removed or protected to minimize leaching. Where reasonable choices exist, dumps shall be located in the least visible locations.
(`78 Code, § 19.12.120.) (Ord. 2386 § 1 (part), 1999.)