Stability of engineered structures

(1) Land and watercourses shall be left in a stable condition such that engineered structures including waste dumps, major haul roads, tailings impoundments and silt check structures shall have a factor of safety which conforms to internationally receiving waters (2) Waste rock and overburden dumps shall be reclaimed to ensure long term erosion control and to ensure that water quality released from the dumps to the receiving environment is of a quality that is internationally acceptable. machinery and (3) Prior to abandonment, all machinery, equipment and building superstructures shall be removed, all foundations shall be covered and revegetated and all scrap material, chemicals, explosives and hazardous materials shall be disposed of in a manner that is of an internationally acceptable standard. Reclamation of watercourses. (4) Watercourses shall be reclaimed in a condition that ensures that long term water quality is maintained to a standard acceptable to the Inspector and drainage is restored either to original watercourses or to new watercourses that will sustain themselves. Revegetation of pit walls. (5) Open-pit walls in overburden shall be revegetated, and where the pit is expected to fill with water, provision shall be made to create a safe, usable body of water. Geotechnical (6) Tailings ponds and other impoundment structures shall be evaluated by a qualified, independent geotechnical engineer who shall make a report assessing the post-operational state of the dams, dikes, seepage control, spillway works and outlining a program for long term monitoring, and the report shall be filed with the Inspector. 89 (7) Vegetation shall be monitored for metal uptake and where harmful levels are found, reclamation procedures shall ensure that levels are safe for plant and animal life. Metal uptake in plants.