Commentary on Sections Water Section 12 – Dams and reservoirs
30.Section 12 specifies the circumstances when development relating to dams and reservoirs will be a Significant Infrastructure Project. These are:
	the construction of a dam or reservoir in Wales if the volume of water to be held back by the dam or stored in the reservoir is expected to exceed 10 million cubic metres;
	the alteration of a dam or reservoir in Wales if the additional volume of water to be held back by the dam or stored in the reservoir as a result of the alteration is expected to exceed 10 million cubic metres.