Sediment basins are not tailings dams. Tailings dams are used for the permanent storage of mining and mineral processing by-products. Such by-products are called ‘tails’ or ‘tailings’ by the resources industry. Sediment basins are engineered stormwater control structures designed to capture and slow sediment-affected stormwater, to reduce the sediment load of water before it leaves the sediment basin. The capture of stormwater (or surface water runoff) for the treatment of sediment should not be mistaken with a tailings dam.

White Rock Quarry does not produce tails or tailings, and does not have a tailings dam or tailings storage facility located on the site.

Figure 1: Processes within a sediment basin

sediment basin

After Department of Environment and Science, Queensland (2018) Sediment basins — Links and references, WetlandInfo website, accessed 21 September 2021.