National Environmental Management: Waste Act, 2008 (Act No. 59 of 2008)

Regulations

Purchase

(1)	Residue stockpile and residue deposit must be character to identify any potential risk to health or safety hazard and environmental impact that may be associated with the residue when stockpiled or deposited at the site on a prospecting, mining, exploration or production operation.

(2)	Residue stockpile and residue deposit must be characterised in terms of its—

(a)	physical characteristics, that must include—

(i)	the size distribution of the principal constituents;

(ii)	the permeability of the material;

(iii)

void ratios of the material;

(iv)	the consolidation or settling characteristics of the material under its own weight and that of any overburden;

(v)	the strength of material;

(vi)	the specific gravity of the solid constituents;

(vii)

the water content of the material at the time of deposition, and at other phases in the re of the deposit; and

(viii)

the change in the above properties with time.

(b)	chemical characteristics, that must include—

(i)	the toxicity;

(ii)	the propensity to oxidize and decompose;

(iii)

the propensity to undergo spontaneous combustion;

(iv)	the pH and chemical composition of the water separated from the solids;

(v)	stability and reactivity and the rate thereof;

(vii)

acid generating and neutralising potential; and

(vii)

the concentration of the volatile organic compounds.

(c)	mineral content that may include the specific gravity of the residue particles and its impact on particle segregation and consolidation.