Division 1 Inspection of dams of Category A waste facilities containing tailings

In addition to the relevant elements listed in Part D, the following shall be taken into consideration by the inspector where the inspection concerns dams of Category A waste facilities containing tailings:

1. (a)

   type and condition of erosion protection;

2. (b)

   adequacy of the hydrological design, such as water balance, available free-board (vertical distance (height) between the normal maximum operating level of a pond and the crest of the dam);

3. (c)

   composition, status and structural integrity of the beach, such as presence of depressions, tailings density, dust control;

4. (d)

   changes of the dam’s crest and slope comparing the current state versus the design state;

5. (e)

   functioning and condition of the drainage system and its state and geotechnical structures (such as geomembranes, dams) and equipment (such as dam structure monitoring);

6. (f)

   leakage and seepage areas, and amount of material leaked;

7. (g)

   any detected damages;

8. (h)

   trees and vegetation on the dam.