Contra Costa County |
Ordinance Code |
Title 8. ZONING |
Division 88. SPECIAL LAND USES |
Chapter 88-11. SURFACE MINING AND RECLAMATION |
§ 88-11.818. Disposal of overburden and mining waste.
(a)
Permanent on-site disposal of overburden and mining waste shall be compatible with the probable future uses of the site. The land surface shall be made stable, and adequate drainage shall be provided. Final disposal of such materials shall not be in the form of apparently artificial piles or dumps of overburden or mining waste. To the maximum extent practicable, grading shall be designed to blend with the natural terrain features of the area.
(b)
Toxic materials shall be removed from the site or shall be protected and isolated to prevent leaching.
(c)
Overburden and mining waste placed below the existing or potential groundwater level shall not reduce water transmissivity or the area through which water may flow unless approved equivalent transmissivity or area has been provided elsewhere.
(Ord. 79-114).