12Activities to be performed in relation to tailings dams

12 Activities to be performed in relation to tailings dams

(1)  In this regulation –

raise, in relation to a tailings dam, means to raise the wall of the dam to increase the available volume of both water and tailings storage.

(2)  An activity specified in Column 1 of the following table, in relation to a tailings dam that –

(a) is constructed by means of an ongoing operation (known as continual lift); and

(b) uses tailings as the primary embankment material; and 

(c) is of a consequence category specified in Column 2 of the following table –

must be performed as indicated opposite the activity and below the consequence category.

Penalty:  In the case of –

(a) a body corporate, a fine not exceeding 500 penalty units; or

(b) a natural person, a fine not exceeding 200 penalty units.

| | Column 1 | | | Column 2 | | | | | | | Activity | | | Consequence Category | | | | | | | | Very Low | Low | Significant | High C | High B | High A | Extreme | | 1. | Geotechnical and earthquake engineering investigations | Not required | Not required | Required every raise | Required every raise | Required every raise | Required every raise | Required every raise | | 2. | Design plans and specifications | Required every raise | Required every raise | Required every raise | Required every raise | Required every raise | Required every raise | Required every raise | | 3. | Pre-construction investigation, design and report | Required every raise | Required every raise | Required every raise | Required every raise | Required every raise | Required every raise | Required every raise | | 4. | Spillway and decant design | Required every raise | Required every raise | Required every raise | Required every raise | Required every raise | Required every raise | Required every raise | | 5. | Dam safety emergency plans | Not required | Not required | Required every raise | Required every raise | Required every raise | Required every raise | Required every raise | | 6. | Supervision of construction and decommissioning | Required every raise | Required every raise | Required every raise | Required every raise | Required every raise | Required every raise | Required every raise | | 7. | NOC report | Required every raise | Required every raise | Required every raise | Required every raise | Required every raise | Required every raise | Required every raise | | 8. | Intermediate surveillance inspection and report | Required when specified by an authorised safety reviewer | Required when specified by an authorised safety reviewer | Required every year | Required every year | Required every year | Required every year | Required every year | | 9. | Comprehensive surveillance inspections and reports | Not required | Not required | Required every 5 years | Required every 2 years | Required every 2 years | Required every 2 years | Required every 2 years | | 10. | Consequence category assessment and review | Required every raise | Required every raise | Required every raise | Required every raise | Required every raise | Required every raise | Required every raise | | 11. | External (third party) review | Not required | Not required | Not required | Required every raise | Required every raise | Required every raise | Required every raise |