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Regulation 3 Calculation of capacity

Original text. Later amendments are not shown.

(1)

For the purposes of section A1(3) of the 1975 Act capacity of a large raised reservoir is to be calculated by measuring the maximum volume of water in cubic metres capable of being stored—

(a)

above the bed of the reservoir; and

(b)

between the toe of the reservoir and its top water level.

(2)

Water below the natural level of any part of the surrounding land is not to be included in the calculation.

(3)

In this regulation “bed of the reservoir” (“gwely’r gronfa ddŵr”) includes any silt or other material that is judged by the engineer giving a final certificate, or giving a certificate under section 13(2) of the 1975 Act, to be incapable of flowing out of the reservoir over natural land in the event of an uncontrolled release of water from the reservoir.