Oregon Revised Statutes Mineral Resources § 517.836

(1)(a) The governing board of the State Department of Geology and Mineral Industries may adopt rules requiring the surveying or marking of surface mining operations.

(b) The rules may include, but are not limited to, requirements for maps or diagrams showing areas excavated or approved for excavation, setbacks or buffers established by the operating permit and the location of buildings, wells, ponds, haul roads, stockpiles, bodies of water and floodways.

(c) The rules may require that information required under this subsection be updated if the mining operations are subject to:

(d) The rules may exempt mining operations from survey or marking requirements based on the size or location of the operations or on the distance of the operations from ground and surface waters.

(e) The rules must allow for reasonable compliance schedules for existing mining operations.