law: 202. Power of inspection.
  The ferrules, communication pipes, connections, meters, stand pipes and all fittings thereon or connected therewith leading from water mains or from pipes, drains, sewers or channels into any house or land, to which water or gas is supplied by a Board, and the pipes, fittings, and works inside any such house or within the limits of any such land, shall in all cases be installed or executed subject to the inspection and to the satisfaction of the Chief Executive Officer.