Waterworks Clauses Act 1952

The undertakers may –

sink such wells or shafts, construct, maintain, lay down, alter, and discontinue such reservoirs, embankments, cisterns, tanks, aqueducts, drains, cuts, sluices, pipes, conduits, mains, culverts, engines, and other works, appliances, and buildings upon the lands, streams, and lakes authorized to be taken by them, as may be necessary to provide a supply of water for any of the purposes of the special Act;

for the purpose of constructing, inspecting, maintaining, altering, relaying, or discontinuing any such works, appliances, or buildings, enter upon any lake, or stream, or the beds and banks thereof, and upon any lands, with vehicles and workmen and there take levels and set out works as the undertakers think necessary;

dig, cut, trench, and break up the soil of any such land, and remove all earth, stones, trees, and other things dug or obtained out of the same, and use such materials in the construction or maintenance of any of the works authorized by the special Act; and for the purpose of exercising any of the powers conferred by this section, enter into such contracts as the undertakers may deem advisable.