The Controlled Waters (Lochs and Ponds) (Scotland) Order 1990
Part II of the Control of Pollution Act 1974, which makes provision on water quality and control of discharges to water, applies to waters of various classes including waters of certain reservoirs. This Order defines as waters to which Part II applies other reservoirs except those which contain water that has been treated with a view to complying with regulation 23 of the Water Supply (Water Quality) (Scotland) Regulations 1990 (S.I. 1990/119).