(a) Lateral supports. All underground mining shall be conducted with sufficient lateral support to minimize, to the degree reasonable under all known or, with reasonable diligence, knowable circumstances, any risk to the health, safety and general welfare of the public and to persons, surrounding or adjacent real or personal property, public resources (including but not limited to sidewalks, parking areas and utilities), wildlife and natural resources.
(b) Stockpiles. Stockpiles within 500 feet of any residence shall not exceed 50 feet in height. No stockpile shall be located closer than 200 feet from the centerline of any public street. The edge of the stockpile shall be the point from which the measurement shall be made. All reasonable precautions shall be taken to prevent any materials or waste deposited upon any stockpile from being washed, blown, or otherwise transferred off of the site by normal causes or forces.
(c) Slope of excavation. No slope created by surface mining shall be maintained exceeding the normal limiting angle of repose of the material or 1:1.5 whichever is less, except that any berm along a public right of way shall be a minimum slope of 1:3.
(d) Fencing. Chain link type fences at least six feet in height shall be required on the perimeter of a mine at a point not closer than the right-of-way line of any street bordering a mine, to be maintained in a constant state of good repair. Appropriate warning signs, which warn against trespassing and the presence of a mine, shall be mounted or posted along the fence at intervals of not more than 100 feet.
(e) Petroleum products shall be stored in accordance with applicable regulations of the United States Environmental Protection Agency and Indiana Department of Environmental Management.
(f) All operations shall be subject to § 7-85 of the City Code (provisions for the protection of the aquifer serving the City's wells).
(g) Any lights used for exterior illumination shall be directed away from adjoining public and private property.
(Ord. D-1686-04, 4-18-05)