Acid Rock Drainage (ARD) definition

Acid Rock Drainage (ARD) means acidic water, often with elevated sulphate concentrations, that occurs as a result of oxidation of sulphide minerals contained in rock or other materials that are exposed as a result of natural weathering processes, Construction or mining activities.

Acid Rock Drainage (ARD) means the production of acidic leachate, Seepage or drainage from underground workings, pits, ore piles, Waste Rock, tailings, and overburden that could lead to the release of metals to Groundwater and surface water during the life of the mine and after mine closure.

Acid Rock Drainage (ARD) means acidic Water, often with elevated sulphate concentrations, that occurs as a result of oxidation of sulphide minerals contained in rock or other materials that are exposed as a result of natural weathering processes, Construction, or Project activitiesthe production of acidic leachate, Seepage or drainage from underground workings, pits, ore piles, Waste Rock, tailings, and overburden that could lead to the release of metals to Groundwater and surface water during the life of the mine and after mine closure.

Examples of Acid Rock Drainage (ARD) in a sentence

• Since the subproject roads are mostly passing through plain terrain and works will not include blasting of rocks (which is mainly requires in hilly terrains), therefore possibilities of Acid Rock Drainage (ARD) are very remote.

• Contact water is defined as water that has had contact with any area disturbed by the project where the water quality could be degraded from Acid Rock Drainage (ARD) or other water contaminants.

• Since the subproject road are mostly passing through plain terrain and works will not include blasting of rocks (which is mainly requires in hilly terrains), therefore possibilities of Acid Rock Drainage (ARD) are very remote.

• This can result in Acid Rock Drainage (ARD) and/or Metal Leaching (ML) and the release of contaminants to the environment.

• Whole block Pb (%) and Zn (%) and Acid Rock Drainage (ARD) data grades are also included in the block model.

• When it occurs in waste rock and tailings piles it is known as Acid Rock Drainage (ARD).

• A geochemical static testing program to better assess the tailings and major deposit materials with respect to their neutralising, Acid Rock Drainage (ARD) and Metal Leaching (ML) potential will be carried out.

• IMPACT ASSESSMENTOnce mining has ceased, Acid Rock Drainage (ARD) is likely to form in the underground workings given the unsaturated conditions in the facility causing oxidation of sulphide minerals which, when in contact with infiltrated groundwater, creates sulphuric acid.

• This is to be presented, for consideration and adoption, to the Council Commissioners at a date to be set by them.

• The generation of acidic and metal-rich waters, as a result of sulphide oxidation, is commonly referred to as Acid Rock Drainage (ARD).

More Definitions of Acid Rock Drainage (ARD)

Acid Rock Drainage (ARD) means the production of acidic leachate, seepage or drainage from underground workings, pits, ore piles, waste rock, tailings, and overburden that could lead to the release of metals to groundwater and surface water during the life of the mine and after mine closure;

Acid Rock Drainage (ARD) means any contaminated release emanating from a mining activity formed through a series of chemical and biological reactions, when geological strata is disturbed and exposed to oxygen and moisture as a result of the mining activity.

Acid Rock Drainage (ARD) means low pH surface or ground water that results from the oxidation of sulphide minerals or, elemental sulphur, or the dissolution of acid generating minerals found in rocks and coal. [Part 9]